Station Overview Station Location
Station Number CAN-ON-593 Latitude 43.451474
Station Name Kitchener 4.5 E Longitude -80.431806
County Ontario Elevation (ft) 1106



Month Total Prcp Sum Days Covered By All Observations Daily Prcp Sum Daily Observation Count Multiday Prcp Sum Days Covered by Multiday Observations Multiday Observation Count Days With Prcp Days With Trace Total Snowfall Days With Snowfall Days With Snow On Ground
Oct 17 3.24 14 3.24 14 0.00 0 0 14 0 0.0 0 0
Nov 17 3.04 19 3.04 19 0.00 0 0 12 1 2.2 3 5
Dec 17 1.78 27 1.78 27 0.00 0 0 12 13 18.6 14 20
Jan 18 3.22 31 3.22 31 0.00 0 0 12 8 14.3 7 24
Feb 18 3.18 28 3.18 28 0.00 0 0 12 10 12.3 10 19
March 18 1.04 31 1.04 31 0.00 0 0 8 8 2.8 5 5
April 18 5.33 29 5.33 29 0.00 0 0 16 4 8.8 7 10
May 18 2.98 31 2.98 31 0.00 0 0 12 2 0.0 0 0
June 18 3.03 30 3.03 30 0.00 0 0 10 4 0.0 0 0
July 18 3.05 30 3.05 30 0.00 0 0 7 6 0.0 0 0
Aug 18 4.70 31 4.70 31 0.00 0 0 12 1 0.0 0 0
Sept 18 1.82 30 1.82 30 0.00 0 0 8 2 0.0 0 0
Water Year Totals: 36.41" 331 days 36.41" 331 0.00" 0 days 0 135 days 59 days 59.0" 46 days 83 days



Days in Water Year Cell Color Key
        Daily Observation with Prcp         Missing Day
        Multiday Observation         Daily/Multiday Observation Conflict

Day of Year Daily Prcp Multiday Prcp
10/1/2017
10/2/2017
10/3/2017
10/4/2017 0.12
10/5/2017
10/6/2017
10/7/2017 0.02
10/8/2017 0.61
10/9/2017 0.57
10/10/2017
10/11/2017 0.28
10/12/2017
10/13/2017 0.04
10/14/2017 0.02
10/15/2017 0.57
10/16/2017 0.12
10/17/2017
10/18/2017
10/19/2017
10/20/2017
10/21/2017
10/22/2017
10/23/2017
10/24/2017 0.57
10/25/2017 0.14
10/26/2017
10/27/2017
10/28/2017 0.04
10/29/2017 0.12
10/30/2017
10/31/2017 0.02
11/1/2017
11/2/2017 0.51
11/3/2017 0.12
11/4/2017
11/5/2017 0.31
11/6/2017 0.33
11/7/2017
11/8/2017
11/9/2017
11/10/2017 0.10
11/11/2017 0.00
11/12/2017 0.00
11/13/2017 0.14
11/14/2017 0.00
11/15/2017 0.00
11/16/2017 0.43
11/17/2017 0.00
11/18/2017 0.00
11/19/2017 0.91
11/20/2017 0.02
11/21/2017 T
11/22/2017 0.14
11/23/2017
11/24/2017
11/25/2017 0.01
11/26/2017 0.02
11/27/2017
11/28/2017
11/29/2017
11/30/2017
12/1/2017 0.10
12/2/2017
12/3/2017
12/4/2017
12/5/2017 0.41
12/6/2017
12/7/2017 T
12/8/2017 T
12/9/2017 0.00
12/10/2017 T
12/11/2017 0.04
12/12/2017 0.24
12/13/2017 T
12/14/2017 0.10
12/15/2017 T
12/16/2017 T
12/17/2017 0.00
12/18/2017 T
12/19/2017 0.01
12/20/2017 T
12/21/2017 T
12/22/2017 0.24
12/23/2017 0.04
12/24/2017 0.03
12/25/2017 0.47
12/26/2017 0.08
12/27/2017 T
12/28/2017 T
12/29/2017 T
12/30/2017 T
12/31/2017 0.02
Day of YearDaily PrcpMultiday Prcp
1/1/2018 0.00
1/2/2018 0.01
1/3/2018 0.00
1/4/2018 0.01
1/5/2018 0.00
1/6/2018 T
1/7/2018 T
1/8/2018 0.39
1/9/2018 T
1/10/2018 0.00
1/11/2018 0.08
1/12/2018 0.75
1/13/2018 0.22
1/14/2018 0.00
1/15/2018 0.00
1/16/2018 0.10
1/17/2018 T
1/18/2018 T
1/19/2018 T
1/20/2018 0.00
1/21/2018 0.00
1/22/2018 0.18
1/23/2018 1.10
1/24/2018 0.08
1/25/2018 T
1/26/2018 T
1/27/2018 0.00
1/28/2018 0.06
1/29/2018 0.00
1/30/2018 0.24
1/31/2018 0.00
2/1/2018 0.03
2/2/2018 T
2/3/2018 T
2/4/2018 0.24
2/5/2018 0.08
2/6/2018 T
2/7/2018 T
2/8/2018 0.14
2/9/2018 T
2/10/2018 0.20
2/11/2018 0.12
2/12/2018 0.12
2/13/2018 0.00
2/14/2018 0.00
2/15/2018 T
2/16/2018 T
2/17/2018 T
2/18/2018 T
2/19/2018 0.00
2/20/2018 0.79
2/21/2018 1.14
2/22/2018 0.06
2/23/2018 T
2/24/2018 0.20
2/25/2018 0.06
2/26/2018 0.00
2/27/2018 0.00
2/28/2018 0.00
3/1/2018 0.00
3/2/2018 0.10
3/3/2018 0.00
3/4/2018 0.00
3/5/2018 0.00
3/6/2018 0.00
3/7/2018 0.04
3/8/2018 0.06
3/9/2018 0.03
3/10/2018 0.02
3/11/2018 T
3/12/2018 T
3/13/2018 T
3/14/2018 T
3/15/2018 T
3/16/2018 T
3/17/2018 T
3/18/2018 0.00
3/19/2018 0.00
3/20/2018 0.00
3/21/2018 0.00
3/22/2018 0.00
3/23/2018 0.00
3/24/2018 0.00
3/25/2018 0.00
3/26/2018 0.00
3/27/2018 0.04
3/28/2018 0.16
3/29/2018 T
3/30/2018 0.59
3/31/2018 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2018 0.31
4/2/2018 0.00
4/3/2018 0.00
4/4/2018 0.98
4/5/2018 0.02
4/6/2018 0.04
4/7/2018 0.08
4/8/2018
4/9/2018 T
4/10/2018 T
4/11/2018 T
4/12/2018 0.08
4/13/2018 0.10
4/14/2018 0.14
4/15/2018 0.98
4/16/2018 1.75
4/17/2018 0.08
4/18/2018 0.06
4/19/2018 T
4/20/2018 0.00
4/21/2018 0.00
4/22/2018 0.00
4/23/2018 0.00
4/24/2018 0.00
4/25/2018 0.47
4/26/2018 0.20
4/27/2018 0.00
4/28/2018 0.02
4/29/2018 0.02
4/30/2018 0.00
5/1/2018 0.00
5/2/2018 0.00
5/3/2018 0.02
5/4/2018 0.51
5/5/2018 0.28
5/6/2018 0.16
5/7/2018 0.31
5/8/2018 0.00
5/9/2018 0.00
5/10/2018 0.24
5/11/2018 T
5/12/2018 T
5/13/2018 0.00
5/14/2018 0.00
5/15/2018 0.31
5/16/2018 0.16
5/17/2018 0.00
5/18/2018 0.00
5/19/2018 0.20
5/20/2018 0.41
5/21/2018 0.00
5/22/2018 0.26
5/23/2018 0.00
5/24/2018 0.00
5/25/2018 0.00
5/26/2018 0.00
5/27/2018 0.00
5/28/2018 0.00
5/29/2018 0.00
5/30/2018 0.00
5/31/2018 0.12
6/1/2018 0.35
6/2/2018 0.00
6/3/2018 0.00
6/4/2018 0.12
6/5/2018 0.12
6/6/2018 T
6/7/2018 0.00
6/8/2018 0.00
6/9/2018 0.00
6/10/2018 0.00
6/11/2018 0.00
6/12/2018 0.00
6/13/2018 0.04
6/14/2018 T
6/15/2018 0.00
6/16/2018 0.00
6/17/2018 T
6/18/2018 0.00
6/19/2018 0.22
6/20/2018 T
6/21/2018 0.00
6/22/2018 0.00
6/23/2018 0.43
6/24/2018 0.61
6/25/2018 0.63
6/26/2018 0.00
6/27/2018 0.47
6/28/2018 0.04
6/29/2018 0.00
6/30/2018 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2018 0.00
7/2/2018 0.00
7/3/2018 0.00
7/4/2018 0.00
7/5/2018 0.00
7/6/2018 T
7/7/2018 0.00
7/8/2018 0.00
7/9/2018 0.00
7/10/2018 0.00
7/11/2018 0.00
7/12/2018 0.00
7/13/2018 0.00
7/14/2018 T
7/15/2018 T
7/16/2018 0.00
7/17/2018 0.96
7/18/2018 0.00
7/19/2018 0.00
7/20/2018
7/21/2018 0.39
7/22/2018 0.35
7/23/2018 0.22
7/24/2018 0.24
7/25/2018 0.65
7/26/2018 0.00
7/27/2018 T
7/28/2018 0.24
7/29/2018 T
7/30/2018 T
7/31/2018 0.00
8/1/2018 0.02
8/2/2018 0.00
8/3/2018 0.00
8/4/2018 0.00
8/5/2018 0.00
8/6/2018 0.00
8/7/2018 0.31
8/8/2018 0.71
8/9/2018 0.10
8/10/2018 0.00
8/11/2018 0.00
8/12/2018 0.00
8/13/2018 0.00
8/14/2018 0.00
8/15/2018 0.00
8/16/2018 0.00
8/17/2018 0.71
8/18/2018 1.14
8/19/2018 0.00
8/20/2018 0.00
8/21/2018 0.47
8/22/2018 0.31
8/23/2018 0.10
8/24/2018 0.00
8/25/2018 0.00
8/26/2018 0.65
8/27/2018 0.10
8/28/2018 T
8/29/2018 0.08
8/30/2018 0.00
8/31/2018 0.00
9/1/2018 0.00
9/2/2018 T
9/3/2018 0.00
9/4/2018 0.00
9/5/2018 0.00
9/6/2018 0.31
9/7/2018 0.00
9/8/2018 0.00
9/9/2018 0.00
9/10/2018 0.39
9/11/2018 0.30
9/12/2018 0.00
9/13/2018 0.00
9/14/2018 0.00
9/15/2018 0.00
9/16/2018 0.00
9/17/2018 0.00
9/18/2018 0.00
9/19/2018 0.00
9/20/2018 0.00
9/21/2018 T
9/22/2018 0.04
9/23/2018 0.00
9/24/2018 0.00
9/25/2018 0.28
9/26/2018 0.30
9/27/2018 0.00
9/28/2018 0.00
9/29/2018 0.18
9/30/2018 0.02



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/4/2017 8:00 PM 0.12 M M M M
10/7/2017 8:00 PM 0.02 M M M M
10/8/2017 9:00 AM 0.61 M M M M
10/9/2017 9:00 AM 0.57 M M M M
10/11/2017 9:00 PM 0.28 M M M M
10/13/2017 9:00 AM 0.04 M M M M This was all drizzle.
10/14/2017 9:00 AM 0.02 M M M M
10/15/2017 8:00 AM 0.57 M M M M
10/16/2017 9:00 AM 0.12 M M M M This from a strong squall line that passed through Sunday afternoon between 2 and 3 PM.
10/24/2017 9:00 AM 0.57 M M M M
10/25/2017 9:00 AM 0.14 M M M M
10/28/2017 6:00 AM 0.04 M M M M
10/29/2017 8:00 AM 0.12 M M M M
10/31/2017 9:00 AM 0.02 M M M M
11/2/2017 9:00 AM 0.51 M M M M
11/3/2017 9:00 AM 0.12 M M M M
11/5/2017 7:00 AM 0.31 M M M M
11/6/2017 7:00 AM 0.33 M M M M
11/10/2017 6:00 AM 0.10 1.2 M 0.8 M Approximately 2.0 mm of this was rain Thursday afternoon and evening, with 1 cm of snow 7 PM - 12.00 AM and a further 2 cm of snow 12.00 AM -
11/11/2017 9:00 AM 0.00 0.0 M 0.8 M
11/12/2017 9:00 AM 0.00 0.0 M 0.4 M
11/13/2017 9:00 AM 0.14 0.8 0.14 0.4 M A heavy wet snow.
11/14/2017 9:00 AM 0.00 0.0 M 0.4 M A heavy wet snow fell. No rain. Snow to water ratio less than 10:1 as expected.
11/15/2017 9:00 AM 0.00 0.0 M 0.0 M
11/16/2017 9:00 AM 0.43 M M 0.0 M
11/17/2017 9:00 AM 0.00 0.0 M M M
11/18/2017 9:00 AM 0.00 0.0 M M M
11/19/2017 9:00 AM 0.91 T M 0.0 M
11/20/2017 9:00 AM 0.02 0.2 M T M Liquid water content estimated, assuming standard 10:1 ratio (lake effect snow at near freezing temps can often have this ratio).
11/21/2017 9:00 AM T T M T M
11/22/2017 9:00 AM 0.14 T M 0.0 M
11/25/2017 9:00 AM 0.01 M M 0.0 M
11/26/2017 9:00 AM 0.02 T M 0.0 M
12/1/2017 6:00 AM 0.10 M M T M
12/5/2017 9:00 AM 0.41 M M 0.0 M
12/7/2017 9:00 AM T 0.2 T 0.2 T Lake effect flurries - combination of snow flakes and snow pellets.
12/8/2017 9:00 AM T T M T M
12/9/2017 9:00 AM 0.00 0.0 M T M
12/10/2017 6:00 AM T 0.4 M 0.2 M
12/11/2017 6:00 AM 0.04 0.8 0.04 0.8 M Lake effect snow.
12/12/2017 9:00 AM 0.24 3.1 M 3.5 M Snow from an Alberta Clipper. It was lighter and fluffy with a snow to water ratio of about 13 to 1.
12/13/2017 9:00 AM T T T 3.1 M
12/14/2017 9:00 AM 0.10 1.2 0.08 3.1 M Synoptic snow from an Alberta Clipper.
12/15/2017 9:00 AM T T T 3.1 M
12/16/2017 9:00 AM T 0.4 T 3.1 M
12/17/2017 9:00 AM 0.00 0.0 M 3.1 M
12/18/2017 6:00 AM T T T 3.1 M Snow from boundary layer cloud. Also foggy.
12/19/2017 9:00 AM 0.01 T T T M A few snowflakes, then a little freezing drizzle then a little drizzle Monday morning as a warm front went through. End of Winter, part 3 of 25.
12/20/2017 6:00 AM T T T T M A few raindrops Tuesday evening, then a few flurries early Wednesday morning.
12/21/2017 6:00 AM T T T T M A skiff of lake effect snow.
12/22/2017 9:00 AM 0.24 2.8 0.28 2.4 M Snow from Colorado Low. Some enhancement off Lake Ontario.
12/23/2017 9:00 AM 0.04 0.4 0.04 2.8 M
12/24/2017 9:00 AM 0.03 0.4 0.04 3.1 M
12/25/2017 9:00 AM 0.47 5.5 0.47 7.5 M Snow from a Texas Low. Snow was relatively light and fluffy for such a weather system (typical snow:water ratio for these in the Great Lakes is 12:1).
12/26/2017 9:00 AM 0.08 2.0 0.08 7.9 M Lake effect snow from Lake Huroh.
12/27/2017 9:00 AM T T T 7.9 M
12/28/2017 9:00 AM T 0.4 T 7.9 M Lake effect snow.
12/29/2017 9:00 AM T 0.4 T 7.9 M Weak Alberta clipper/lske effect.
12/30/2017 9:00 AM T T T 7.9 M Lake effect flurries.
12/31/2017 9:00 AM 0.02 0.6 0.02 8.3 M Lake effect snow squall on the afternoon of Dec 30. Brief 1/8SM +SHSN. Snow like goose down. Very low moisture content.
1/1/2018 9:00 AM 0.00 0.0 0.00 7.9 M
1/2/2018 9:00 AM 0.01 3.5 0.01 8.3 M Lake effect snow. Entire cloud in dendritic growth zone (cloud temps minus 12 to minus 20 from forecast soundings). Like goose down fluff. 7 cm snow fell between 1 PM and 7 PM on January 1st.
1/3/2018 6:00 AM 0.00 0.0 0.00 7.9 M
1/4/2018 9:00 AM 0.01 0.2 0.01 7.9 M Lake effect snow.
1/5/2018 9:00 AM 0.00 0.0 0.00 7.9 M
1/6/2018 9:00 AM T T T 7.5 M
1/7/2018 9:00 AM T T T 7.5 M Very weak lake effect.
1/8/2018 9:00 AM 0.39 3.9 0.39 9.8 M Trace amounts of freezing rain Sunday evening until about 1 AM Monday. Snow was occasionally mixed with ice pellets and a few drops of freezing rain
1/9/2018 9:00 AM T T T 9.1 M Precipitation was both light snow and some drizzle.
1/10/2018 9:00 AM 0.00 0.0 0.00 8.7 M
1/11/2018 9:00 AM 0.08 0.0 0.00 3.1 M Standard January Thaw. Snow cover is still continuous this morning. An ice rink next door looks like a swimming pool.
1/12/2018 9:00 AM 0.75 0.0 0.00 T M Overnight rain with temperatures of 10 or 11 C for a solid 12 hours resulted in melting of most of the snow cover in my neighborhood.
1/13/2018 6:00 AM 0.22 0.8 0.10 0.8 M 3.0 mm from rain and freezing rain (ice accretion from freezing rain about 1 mm). 2.5 mm of pcpn at end of event was from snow on Friday afternoon into early evening. Total pcpn from this 2 day event 24,5 mm.
1/14/2018 9:00 AM 0.00 0.0 0.00 0.8 M
1/15/2018 9:00 AM 0.00 0.0 M 0.8 M
1/16/2018 6:00 AM 0.10 2.0 0.10 2.8 M Synoptic snow from a weak Alberta Clipper. 20:1 snow to water ratio - similar to lake effect snow.
1/17/2018 8:00 AM T T T 2.8 M
1/18/2018 9:00 AM T T T 2.4 M
1/19/2018 9:00 AM T T T 2.4 M
1/20/2018 6:00 AM 0.00 0.0 0.00 2.0 M
1/21/2018 9:00 AM 0.00 0.0 0.00 0.8 M
1/22/2018 9:00 AM 0.18 0.0 0.00 0.4 M
1/23/2018 9:00 AM 1.10 0.0 M T M Some small hail may have fallen during a thunderstorm between 1 and 2 AM.
1/24/2018 9:00 AM 0.08 0.4 T 0.4 M Rain with cold front, followed by 1 cm very fluffy lake effect snow (trace water equivalent)overnight.
1/25/2018 9:00 AM T T T T M
1/26/2018 7:00 AM T T T T M
1/27/2018 9:00 AM 0.00 0.0 0.00 T M
1/28/2018 9:00 AM 0.06 0.0 0.00 T M Band of rain moved through Saturday afternoon roughly between 1 and 4 PM.
1/29/2018 6:00 AM 0.00 0.0 0.00 T M
1/30/2018 6:00 AM 0.24 3.5 0.24 3.5 M Alberta clipper type snow. Quite fluffy - more like lake effect. (15:1 snow to water ratio)
1/31/2018 6:00 AM 0.00 0.0 0.00 3.1 M Thick altostratus deck. Virga W through N. Moon unfortunately not visible.
2/1/2018 9:00 AM 0.03 0.4 0.03 2.8 M
2/2/2018 9:00 AM T 0.2 T 2.0 M Lake effect snow. Happy Groundhog Day!
2/3/2018 9:00 AM T T T 2.0 M
2/4/2018 9:00 AM 0.24 3.5 0.24 5.1 M Alberta Clipper snow. Quite the decent dendrites seen. No lake effect or lake enhancement in this area.
2/5/2018 8:00 AM 0.08 0.8 0.08 5.1 M About 0.5 cm of the snow was wet on Sunday afternoon, likely with a SWE of only 7:1. The rest of the snow was post cold frontal and much lighter, with a SWE ratio starting near 10:1 and increasing to 15:1 or even higher. Average was 10:1 for the 24 hour period.
2/6/2018 9:00 AM T 0.2 T 5.1 M Lake effect "fluff'. A snow to water ratio of at least 20 to 1.
2/7/2018 5:00 AM T 0.4 T 5.1 M Just the beginning of a snow event on the northern edge of a Texas Low snowstorm.
2/8/2018 6:00 AM 0.14 2.0 0.14 6.7 M Snow once again fairly light and fluffy, which has been common for synoptic weather system snow this season.
2/9/2018 9:00 AM T 0.4 T 7.1 M Lake effect snow. Goose down fluff.
2/10/2018 9:00 AM 0.20 2.8 0.20 8.7 M Synoptics area of snow from an Oklahome Low.
2/11/2018 9:00 AM 0.12 1.6 0.12 9.4 M Another light synoptic snow from a parade of disturbances tracking NE across the Lower Great Lakes and Southern Ontario.
2/12/2018 9:00 AM 0.12 T T 8.3 M Freezing rain along with a trace of ice pellets and snow.
2/13/2018 9:00 AM 0.00 0.0 0.00 8.3 M
2/14/2018 9:00 AM 0.00 0.0 0.00 7.9 M
2/15/2018 9:00 AM T 0.0 0.00 5.1 M A little drizzle last night. Foggy. Moderate snow melt.
2/16/2018 9:00 AM T 0.0 0.00 3.1 M
2/17/2018 6:00 AM T T T 3.1 M Hoar frost early this morning on trees and vehicles. Lots of scraping required.
2/18/2018 6:00 AM T T T 3.1 M Light snow from a weak upper air system that passed through overnight.
2/19/2018 9:00 AM 0.00 0.0 0.00 3.1 M
2/20/2018 7:00 AM 0.79 0.0 0.00 T M
2/21/2018 9:00 AM 1.14 0.0 0.00 T M Two day rainfall total 49.0 mm. Some fields just to my E are flooded. Grand River (2 km to my E) running very rapidly and looks high with minor flooding near the river band seen.
2/22/2018 9:00 AM 0.06 0.0 0.00 T M Still ponded water in some empty fields near my neighbourhood.
2/23/2018 9:00 AM T 0.0 0.00 T M Patchy drizzle ahead of an approaching warm front.
2/24/2018 9:00 AM 0.20 0.0 0.00 T M Drizzle with occasional rain on Friday after morning observation(from 8000 foot thick stratus - precipitation formed by collision-coalescence process).
2/25/2018 9:00 AM 0.06 0.0 0.00 T M Fairly quick shot of rain from a fast moving warm front.
2/26/2018 9:00 AM 0.00 0.0 0.00 0.0 M The last remaining part of an old drift/snow pile melted Sunday afternoon under the strengthening late February sun.
2/27/2018 9:00 AM 0.00 0.0 0.00 0.0 M A sunny day with temperatures more like Early April (high was about 12.5 C or 55 F). Not a record high though. (That was 12.9 set in February 27, 2000). Grass is starting to turn green in a few areas. Daffodil bulb tips above soil.
2/28/2018 6:00 AM 0.00 0.0 0.00 0.0 M
3/1/2018 6:00 AM 0.00 0.0 0.00 0.0 M
3/2/2018 6:00 AM 0.10 1.0 0.10 0.6 M Wet snow (snow to water ratio about 7 to 1) then dry and fluffier snow (snow to water ratio about 12 to 1). A trace of rain right at the start last evening. WE were right under an atmospheric blocking area called a deformation zone, which kept the heavy snow just to the south of my location.
3/3/2018 9:00 AM 0.00 0.0 0.00 T M
3/4/2018 9:00 AM 0.00 0.0 0.00 0.0 M Still a few patches of 1 cm deep snow in shaded sections of lawns, gardens, forest etc. in the neighborhood and nearby (within 3 km) countryside. Property in my immediate area is snow free.
3/5/2018 9:00 AM 0.00 0.0 0.00 0.0 M Still a few patches of 1 cm deep snow in shaded sections of lawns, gardens, forest etc. in the neighborhood and nearby (within 3 km) countryside. Property in my immediate area is snow free.
3/6/2018 9:00 AM 0.00 0.0 0.00 0.0 M
3/7/2018 9:00 AM 0.04 0.4 0.04 0.4 M Winter, part 10 from cold low slowly passing east over the Great Lakes region. Snow to water ratio about 10 to 1!
3/8/2018 9:00 AM 0.06 0.6 0.06 0.6 M Just a trace of rain, mixed in with the flurries, observed Wednesday afternoon. A vertically stacked cold low pressure system with a centre over Southern Lake Huron.
3/9/2018 9:00 AM 0.03 0.4 0.03 0.8 M Lake effect snow.
3/10/2018 9:00 AM 0.02 0.4 0.02 0.8 M Lake effect flurries. These are more typical like goose down fluff.
3/11/2018 9:00 AM T T T T M Very weak left over lake effect snow flurries.
3/12/2018 8:00 AM T T T T M Weak lake effect snow flurries continue.
3/13/2018 9:00 AM T T T T M Ongoing weak lake effect flurries under a blocked upper air weather pattern keeping us under either a cold low or an upper trough.
3/14/2018 9:00 AM T T T T M
3/15/2018 8:00 AM T T T T M
3/16/2018 9:00 AM T T T T M Ongoing occasional lake effect flurries.
3/17/2018 9:00 AM T T T T M Weak lake effect flurries finally ending on Friday afternoon. Happy St. Patrick's Day!
3/18/2018 9:00 AM 0.00 0.0 0.00 T M Crystal clear skies.
3/19/2018 8:00 AM 0.00 0.0 0.00 T M Patches of 1-3 cm deep snow still found in naturally shaded areas of property and neighbourhood. Otherwise ground is bare, and grass is becoming spring green in areas warmed by the sun.
3/20/2018 6:00 AM 0.00 0.0 0.00 T M Still a few patches of 2 cm snow on ground in naturally shaded areas on the property and in the neighbourhood. Happy spring!
3/21/2018 6:00 AM 0.00 0.0 0.00 0.0 M Finally, it's completely snow free! Just in time for the first full day of spring.
3/22/2018 9:00 AM 0.00 0.0 0.00 0.0 M
3/23/2018 9:00 AM 0.00 0.0 0.00 0.0 M
3/24/2018 9:00 AM 0.00 0.0 0.00 0.0 M Quite the dry spell. No measurable precipitation since March 10 - two weeks ago!
3/25/2018 9:00 AM 0.00 0.0 0.00 0.0 M
3/26/2018 9:00 AM 0.00 0.0 0.00 0.0 M The unusually long sunny and dry spell (for March) continues.
3/27/2018 9:00 AM 0.04 0.0 0.00 0.0 M First measurable rainfall this month. Last rain was a trace on March 02.
3/28/2018 9:00 AM 0.16 0.0 0.00 0.0 M
3/29/2018 8:00 AM T 0.0 0.00 0.0 M A little drizzle earlier this morning.
3/30/2018 6:00 AM 0.59 0.0 0.00 0.0 M
3/31/2018 6:00 AM 0.00 0.0 0.00 0.0 M Frost on grass under the 2nd blue moon this year.
4/1/2018 9:00 AM 0.31 0.0 0.00 0.0 M All rain, ending before midnight March 31st. No evidence of any snow.
4/2/2018 9:00 AM 0.00 0.0 0.00 0.0 M
4/3/2018 9:00 AM 0.00 0.0 0.00 0.0 M
4/4/2018 9:00 AM 0.98 T T 0.0 M Thunderstorm last evening with heavy downpours. Few flurries from hangback of Colorado low started between 8 AM and 9 AM today. Very windy.
4/5/2018 8:00 AM 0.02 0.4 0.02 T M Snow from hangback part of Colorado Low, then a little lake effect snow. Minor tree damage, few shingles removed, and local power outages from strong wind gusts of near 90 km/h Wednesday.
4/6/2018 9:00 AM 0.04 0.8 0.04 0.8 M Visibility was occasionally as low as 1/4 Statute Mile in heavy snow mid morning. Good dendrites. Quite fluffy and easy to shovel.
4/7/2018 9:00 AM 0.08 1.8 0.08 0.8 M Lake effect snow finally ended late Friday evening
4/9/2018 6:00 AM T T T T M Few flurries until about 2 PM Sunday (weak lake effect). Patches of 2 cm snow cover still in naturally shaded areas. Grass/fields/forest floors exposed to the sun are mainly snow free.
4/10/2018 6:00 AM T T T T M Flurries mainly from Monday evening. CVombination of weak lake effect and leftover daytime instability in a weak disturbance moving through.
4/11/2018 6:00 AM T T T T M Few wet flurries from surface based convection Tuesday afternoon.
4/12/2018 9:00 AM 0.08 0.0 0.00 0.0 M About 0.5 mm fell Wednesday. Another 1.5 mm fell this morning up to 9 AM. Last remaining bits of snow finally melted Wednesday.
4/13/2018 6:00 AM 0.10 0.0 0.00 0.0 M
4/14/2018 9:00 AM 0.14 0.0 0.00 0.0 M Rain on leading edge of what may be a historic ice storm this weekend.
4/15/2018 6:00 AM 0.98 2.4 0.71 2.4 M 5 mm rain. Then 2 mm freezing rain. Then 6 cm of ice pellets, with liquid water equivalent 18 mm. Ice pellets on ground are recorded officially as snow on ground. Hence I have recorded 6 cm as new "snow" fall, but have recorded 6 cm of "snow" on ground from the ice pellets. It is now a solidly frozen ice pellet concrete layer.
4/16/2018 9:00 AM 1.75 2.4 0.71 4.7 M 18.0 mm liquid water from 6 cm ice pellets, 2.0 mm freezing rain, then 24.5 mm plain rain, for a total of 44.5 mm.
4/17/2018 9:00 AM 0.08 T T 4.3 M Still minor flooding around the area from melting ice pellet concrete. Pcpn mostly rain with a few flakes of wet snow on Monday.
4/18/2018 9:00 AM 0.06 0.8 0.06 3.9 M Once again, lake effect flurries.
4/19/2018 9:00 AM T T T 3.1 M
4/20/2018 6:00 AM 0.00 0.0 0.00 2.8 M Ice pellet concrete layer still continuous. Ground beneath it on my property is not frozen.
4/21/2018 9:00 AM 0.00 0.0 0.00 1.6 M Ice pellet concrete layer melting quite rapidly under the strong sun. Inground pool in WSW facing backyard is once again ice free.
4/22/2018 9:00 AM 0.00 0.0 0.00 0.4 M Ice pellet cover is patchy (about 50 percent of the ground is covered - 2 cm deep). Hence "average" depth 1 cm.
4/23/2018 9:00 AM 0.00 0.0 0.00 T M Few patches of ice pellet concrete in shady areas. Up to 5 cm thick. Otherwise bare ground.
4/24/2018 9:00 AM 0.00 0.0 0.00 T M Still a few patches of ice pellet concrete. It now resembles firn on glaciers in the summer. Grass has emerged lime green from under the melting ice.
4/25/2018 9:00 AM 0.47 0.0 0.00 0.0 M Finally all last natural patches of ice pellets are gone. (Still some melting piles of that stuff - but the piles are not natural).
4/26/2018 8:00 AM 0.20 0.0 0.00 0.0 M
4/27/2018 9:00 AM 0.00 0.0 0.00 0.0 M
4/28/2018 9:00 AM 0.02 0.0 0.00 0.0 M
4/29/2018 6:00 AM 0.02 0.2 0.02 T M Trace of snow on grass, Measured 1/2 cm on top of car. Rooftops and deck were white.
4/30/2018 6:00 AM 0.00 0.0 0.00 0.0 M
5/1/2018 9:00 AM 0.00 0.0 0.00 0.0 M Last remnants of ice pellet concrete pile (from stuff that slid off the roof onto a shaded part of a garden) melted around noon in the 23 C warmth. Today is the latest first occurrence of 20.0 C or greater in this region since 1995.
5/2/2018 9:00 AM 0.00 0.0 0.00 0.0 M
5/3/2018 9:00 AM 0.02 0.0 0.00 0.0 M Overnight thundershower.
5/4/2018 9:00 AM 0.51 0.0 0.00 0.0 M
5/5/2018 9:00 AM 0.28 0.0 0.00 0.0 M From fast moving severe thunderstorms Friday afternoon. All sorts of minor wind damage in the area, from gusts as high as 122 km/h. Thunderstorm had torrential downpours reducing visibility to less than 200 metres along with ponding on our street.
5/6/2018 9:00 AM 0.16 0.0 0.00 0.0 M All rain from a sudden pop up lake breeze convergence thunderstorm Saturday afternoon.
5/7/2018 9:00 AM 0.31 0.0 0.00 0.0 M Rain from thunderstorms Sunday afternoon. Third day in a row with thunderstorms.
5/8/2018 9:00 AM 0.00 0.0 0.00 0.0 M
5/9/2018 9:00 AM 0.00 0.0 0.00 0.0 M
5/10/2018 9:00 AM 0.24 0.0 0.00 0.0 M
5/11/2018 9:00 AM T 0.0 0.00 0.0 M
5/12/2018 9:00 AM T 0.0 0.00 0.0 M
5/13/2018 6:00 AM 0.00 0.0 0.00 0.0 M
5/14/2018 6:00 AM 0.00 0.0 0.00 0.0 M Fog patches.
5/15/2018 7:00 AM 0.31 0.0 0.00 0.0 M Thunderstorm overnight.
5/16/2018 9:00 AM 0.16 0.0 0.00 0.0 M
5/17/2018 9:00 AM 0.00 0.0 0.00 0.0 M
5/18/2018 9:00 AM 0.00 0.0 0.00 0.0 M
5/19/2018 9:00 AM 0.20 0.0 0.00 0.0 M
5/20/2018 9:00 AM 0.41 0.0 0.00 0.0 M 3.0 mm Saturday morning 9 AM to noon ahead of warm front. 7.5 mm Saturday night with cold front.
5/21/2018 9:00 AM 0.00 0.0 0.00 0.0 M
5/22/2018 9:00 AM 0.26 0.0 0.00 0.0 M
5/23/2018 9:00 AM 0.00 0.0 0.00 0.0 M
5/24/2018 9:00 AM 0.00 0.0 0.00 0.0 M
5/25/2018 9:00 AM 0.00 0.0 0.00 0.0 M
5/26/2018 9:00 AM 0.00 0.0 0.00 0.0 M
5/27/2018 9:00 AM 0.00 0.0 0.00 0.0 M
5/28/2018 9:00 AM 0.00 0.0 0.00 0.0 M
5/29/2018 9:00 AM 0.00 0.0 0.00 0.0 M
5/30/2018 9:00 AM 0.00 0.0 0.00 0.0 M
5/31/2018 9:00 AM 0.12 0.0 0.00 0.0 M
6/1/2018 9:00 AM 0.35 0.0 0.00 0.0 M 2.0 mm from TSRA 3.00-3.30 PM Fri 7.0 mm from SHWRS/TSRA 5.30 - 6.30 PM Fri.
6/2/2018 9:00 AM 0.00 0.0 0.00 0.0 M
6/3/2018 9:00 AM 0.00 0.0 0.00 0.0 M
6/4/2018 9:00 AM 0.12 0.0 0.00 0.0 M A few showers Sunday afternoon and last night into early this morning.
6/5/2018 9:00 AM 0.12 0.0 0.00 0.0 M
6/6/2018 9:00 AM T 0.0 0.00 0.0 M
6/7/2018 9:00 AM 0.00 0.0 0.00 0.0 M
6/8/2018 9:00 AM 0.00 0.0 0.00 0.0 M
6/9/2018 9:00 AM 0.00 0.0 0.00 0.0 M
6/10/2018 9:00 AM 0.00 0.0 0.00 0.0 M
6/11/2018 9:00 AM 0.00 0.0 0.00 0.0 M
6/12/2018 9:00 AM 0.00 0.0 0.00 0.0 M
6/13/2018 9:00 AM 0.04 0.0 0.00 0.0 M
6/14/2018 9:00 AM T 0.0 0.00 0.0 M
6/15/2018 9:00 AM 0.00 0.0 0.00 0.0 M
6/16/2018 9:00 AM 0.00 0.0 0.00 0.0 M
6/17/2018 9:00 AM T 0.0 0.00 0.0 M A brief sprinkle on Saturday afternoon. Just a few evaporating droplets. Virga all quads for a couple hours around the sprinkle.
6/18/2018 9:00 AM 0.00 0.0 0.00 0.0 M
6/19/2018 9:00 AM 0.22 0.0 0.00 0.0 M Most (about 5 mm) fell in a 10 minute window sometime between 4.15 and 4.45 PM Monday.
6/20/2018 6:00 AM T 0.0 0.00 0.0 M A few small droplets at observation time, from virga touching the ground for the very firet time.
6/21/2018 9:00 AM 0.00 0.0 0.00 0.0 M
6/22/2018 9:00 AM 0.00 0.0 0.00 0.0 M
6/23/2018 9:00 AM 0.43 0.0 0.00 0.0 M
6/24/2018 9:00 AM 0.61 0.0 0.00 0.0 M A well organized band of rain overnight into this morning. Raining at observation time.
6/25/2018 9:00 AM 0.63 0.0 0.00 0.0 M Rain ended about 4 PM Sunday afternoon.
6/26/2018 9:00 AM 0.00 0.0 0.00 0.0 M
6/27/2018 9:00 AM 0.47 0.0 0.00 0.0 M
6/28/2018 9:00 AM 0.04 0.0 0.00 0.0 M
6/29/2018 9:00 AM 0.00 0.0 0.00 0.0 M
6/30/2018 9:00 AM 0.00 0.0 0.00 0.0 M
7/1/2018 9:00 AM 0.00 0.0 0.00 0.0 M
7/2/2018 9:00 AM 0.00 0.0 0.00 0.0 M
7/3/2018 9:00 AM 0.00 0.0 0.00 0.0 M
7/4/2018 9:00 AM 0.00 0.0 0.00 0.0 M
7/5/2018 9:00 AM 0.00 0.0 0.00 0.0 M
7/6/2018 6:00 AM T 0.0 0.00 0.0 M Sprinkle Thursday afternoon near 4 PM during a brief lake breeze convergence thundershower. Second sprinkle, along with occasional distant thunder near 7 PM.
7/7/2018 9:00 AM 0.00 0.0 0.00 0.0 M
7/8/2018 9:00 AM 0.00 0.0 0.00 0.0 M
7/9/2018 6:00 AM 0.00 0.0 0.00 0.0 M
7/10/2018 9:00 AM 0.00 0.0 0.00 0.0 M
7/11/2018 9:00 AM 0.00 0.0 0.00 0.0 M
7/12/2018 9:00 AM 0.00 0.0 0.00 0.0 M
7/13/2018 9:00 AM 0.00 0.0 0.00 0.0 M
7/14/2018 9:00 AM T 0.0 0.00 0.0 M A brief sprinkle Friday afternoon. I could see a few droplets on the windows. Very dry conditions continue as a short term drought develops.
7/15/2018 9:00 AM T 0.0 0.00 0.0 M A trace from sprinkles near 6 PM Saturday.
7/16/2018 9:00 AM 0.00 0.0 0.00 0.0 M Thunderstorm developed about 5 km to the SE of my abode late Sunday afternoo, soaking the nearby city of Cambridge. Not a single drop of rain from that storm at my abode.
7/17/2018 9:00 AM 0.96 0.0 0.00 0.0 M Rain from three thunderstorms Monday afternoon. Relief from drought.
7/18/2018 9:00 AM 0.00 0.0 0.00 0.0 M
7/19/2018 9:00 AM 0.00 0.0 0.00 0.0 M
7/21/2018 9:00 AM 0.39 0.0 0.00 0.0 M Three distinct showers last night. Gardens are happy.
7/22/2018 9:00 AM 0.35 0.0 0.00 0.0 M Another well needed synoptic rain overnight into this morning.
7/23/2018 9:00 AM 0.22 0.0 0.00 0.0 M Rain ended Sunday afternoon.
7/24/2018 6:00 AM 0.24 0.0 0.00 0.0 M
7/25/2018 6:00 AM 0.65 0.0 0.00 0.0 M Heavy showers Tuesday evening.
7/26/2018 6:00 AM 0.00 0.0 0.00 0.0 M
7/27/2018 9:00 AM T 0.0 0.00 0.0 M Just a few drops Thursday afternoon as thunderstorms passed by to the north and south.
7/28/2018 9:00 AM 0.24 0.0 0.00 0.0 M Thunderstorm Friday evening.
7/29/2018 9:00 AM T 0.0 0.00 0.0 M
7/30/2018 9:00 AM T 0.0 0.00 0.0 M
7/31/2018 9:00 AM 0.00 0.0 0.00 0.0 M
8/1/2018 9:00 AM 0.02 0.0 0.00 0.0 M
8/2/2018 9:00 AM 0.00 0.0 0.00 0.0 M
8/3/2018 9:00 AM 0.00 0.0 0.00 0.0 M
8/4/2018 9:00 AM 0.00 0.0 0.00 0.0 M
8/5/2018 9:00 AM 0.00 0.0 0.00 0.0 M
8/6/2018 9:00 AM 0.00 0.0 0.00 0.0 M
8/7/2018 9:00 AM 0.31 0.0 0.00 0.0 M 1.5 mm Sunday afternoon thundershowers. 6.5 mm during a thunderstorm between 10.00 PM and midnight on Sunday.
8/8/2018 9:00 AM 0.71 0.0 0.00 0.0 M Overnight and early morning showers [ tropical style.
8/9/2018 9:00 AM 0.10 0.0 0.00 0.0 M From Wednesday afternoon.
8/10/2018 9:00 AM 0.00 0.0 0.00 0.0 M
8/11/2018 9:00 AM 0.00 0.0 0.00 0.0 M
8/12/2018 9:00 AM 0.00 0.0 0.00 0.0 M
8/13/2018 6:00 AM 0.00 0.0 0.00 0.0 M
8/14/2018 6:00 AM 0.00 0.0 0.00 0.0 M
8/15/2018 6:00 AM 0.00 0.0 0.00 0.0 M
8/16/2018 6:00 AM 0.00 0.0 0.00 0.0 M
8/17/2018 9:00 AM 0.71 0.0 0.00 0.0 M 1.5 mm Thursday afternoon. 16.5 mm from two thundershowers overnight. Frequent lightning from second thundershower.
8/18/2018 8:00 AM 1.14 0.0 0.00 0.0 M Thunderstorms with frequent lightning and heavy downpours between about 11 PM and 1 AM.
8/19/2018 9:00 AM 0.00 0.0 0.00 0.0 M A few early morning cotton candy radiation fog patches.
8/20/2018 9:00 AM 0.00 0.0 0.00 0.0 M
8/21/2018 9:00 AM 0.47 0.0 0.00 0.0 M
8/22/2018 9:00 AM 0.31 0.0 0.00 0.0 M Showers, and a thundershower early this morning.
8/23/2018 6:00 AM 0.10 0.0 0.00 0.0 M A few showers which ended about 1 PM Wednesday.
8/24/2018 6:00 AM 0.00 0.0 0.00 0.0 M
8/25/2018 9:00 AM 0.00 0.0 0.00 0.0 M
8/26/2018 9:00 AM 0.65 0.0 0.00 0.0 M 8.5 mm from showers on Saturday afternoon. 8.0 mm from showers Saturday night after 10 PM.
8/27/2018 9:00 AM 0.10 0.0 0.00 0.0 M
8/28/2018 9:00 AM T 0.0 0.00 0.0 M Few drops.
8/29/2018 9:00 AM 0.08 0.0 0.00 0.0 M A few showers and a brief thundershower this morning.
8/30/2018 9:00 AM 0.00 0.0 0.00 0.0 M
8/31/2018 9:00 AM 0.00 0.0 0.00 0.0 M
9/1/2018 9:00 AM 0.00 0.0 0.00 0.0 M
9/2/2018 9:00 AM T 0.0 0.00 0.0 M
9/3/2018 9:00 AM 0.00 0.0 0.00 0.0 M
9/4/2018 9:00 AM 0.00 0.0 0.00 0.0 M
9/5/2018 9:00 AM 0.00 0.0 0.00 0.0 M
9/6/2018 9:00 AM 0.31 0.0 0.00 0.0 M Two thunderstorms after 9 PM Wednesday evening.
9/7/2018 9:00 AM 0.00 0.0 0.00 0.0 M
9/8/2018 9:00 AM 0.00 0.0 0.00 0.0 M
9/9/2018 6:00 AM 0.00 0.0 0.00 0.0 M
9/10/2018 6:00 AM 0.39 0.0 0.00 0.0 M
9/11/2018 9:00 AM 0.30 0.0 0.00 0.0 M Rain and drizzle on a very dreary Monday tapering off Monday night.
9/12/2018 9:00 AM 0.00 0.0 0.00 0.0 M
9/13/2018 6:00 AM 0.00 0.0 0.00 0.0 M Fog in area this morning.
9/14/2018 6:00 AM 0.00 0.0 0.00 0.0 M
9/15/2018 9:00 AM 0.00 0.0 0.00 0.0 M
9/16/2018 9:00 AM 0.00 0.0 0.00 0.0 M
9/17/2018 9:00 AM 0.00 0.0 0.00 0.0 M
9/18/2018 9:00 AM 0.00 0.0 0.00 0.0 M Patchy fog earlier in the morning.
9/19/2018 9:00 AM 0.00 0.0 0.00 0.0 M
9/20/2018 8:00 AM 0.00 0.0 0.00 0.0 M
9/21/2018 8:00 AM T 0.0 0.00 0.0 M A few sprinkles ahead of a warm front Thursday afternoon.
9/22/2018 8:00 AM 0.04 0.0 0.00 0.0 M Two brief showers Friday afternoon.
9/23/2018 6:00 AM 0.00 0.0 0.00 0.0 M Heavy dew this morning. Radiation fog patches in the region (but not right at my house).
9/24/2018 6:00 AM 0.00 0.0 0.00 0.0 M
9/25/2018 8:00 AM 0.28 0.0 0.00 0.0 M A few showers last night into this morning. Warm front approaching from the southwest.
9/26/2018 9:00 AM 0.30 0.0 0.00 0.0 M Showers Tuesday and Tuesday night.
9/27/2018 9:00 AM 0.00 0.0 0.00 0.0 M Fog patches early this morning.
9/28/2018 6:00 AM 0.00 0.0 0.00 0.0 M Cotton candy fog patches early this morning.
9/29/2018 9:00 AM 0.18 0.0 0.00 0.0 M Showers with and in wake of summer ending cold front last evening.
9/30/2018 9:00 AM 0.02 0.0 0.00 0.0 M Occasional light rain and drizzle Saturday night into this morning.



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes



Observation Date Observation Time Notes Largest Stone Size Average Stone Size Smallest Stone Size Stone Consistency Duration Minutes Durration Accuracy Damage Timing More Rain than Hail Hail Started Largest Hail Started Angle of Impact Number of Stones on Pad Distance Between Stones on Pad Depth of Stones on Ground