Station Overview Station Location
Station Number CAN-ON-25 Latitude 45.254982
Station Name Stittsville 0.8 SSE - MiVCA Longitude -75.9104843
County Ontario Elevation (ft) 383



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 16 4.14 30 4.14 30 0.00 0 0 12 1 0.0 0 0
Nov 16 1.85 30 1.85 30 0.00 0 0 16 0 10.1 4 1
Dec 16 4.36 31 4.36 31 0.00 0 0 21 3 36.9 17 1
Jan 17 3.36 31 3.36 31 0.00 0 0 19 2 17.3 14 0
Feb 17 3.61 28 3.61 28 0.00 0 0 16 1 24.5 12 0
March 17 3.68 31 3.03 27 0.65 4 1 11 3 15.6 7 0
April 17 6.13 30 6.13 30 0.00 0 0 16 0 2.6 1 0
May 17 8.40 31 8.40 31 0.00 0 0 18 0 0.3 1 0
June 17 5.52 30 3.41 23 2.11 7 2 11 1 0.0 0 0
July 17 8.33 31 8.33 31 0.00 0 0 15 1 0.0 0 0
Aug 17 3.43 31 3.43 31 0.00 0 0 12 2 0.0 0 0
Sept 17 1.62 30 0.54 17 1.08 13 2 3 1 0.0 0 0
Water Year Totals: 54.43" 364 days 50.59" 340 3.84" 24 days 5 170 days 15 days 107.3" 56 days 2 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
10/1/2016 0.00
10/2/2016 0.08
10/3/2016 0.07
10/4/2016 0.00
10/5/2016 0.00
10/6/2016 0.00
10/7/2016 0.00
10/8/2016 0.00
10/9/2016 0.43
10/10/2016 0.00
10/11/2016 0.00
10/12/2016 0.00
10/13/2016 0.03
10/14/2016 0.00
10/15/2016 0.00
10/16/2016 0.00
10/17/2016 0.29
10/18/2016 0.38
10/19/2016
10/20/2016 0.00
10/21/2016 0.93
10/22/2016 0.82
10/23/2016 0.27
10/24/2016 0.00
10/25/2016 0.00
10/26/2016 T
10/27/2016 0.00
10/28/2016 0.50
10/29/2016 0.31
10/30/2016 0.03
10/31/2016 0.00
11/1/2016 0.00
11/2/2016 0.05
11/3/2016 0.23
11/4/2016 0.07
11/5/2016 0.00
11/6/2016 0.05
11/7/2016 0.00
11/8/2016 0.00
11/9/2016 0.01
11/10/2016 0.00
11/11/2016 0.02
11/12/2016 0.00
11/13/2016 0.00
11/14/2016 0.00
11/15/2016 0.00
11/16/2016 0.15
11/17/2016 0.02
11/18/2016 0.00
11/19/2016 0.00
11/20/2016 0.09
11/21/2016 0.46
11/22/2016 0.24
11/23/2016 0.00
11/24/2016 0.09
11/25/2016 0.28
11/26/2016 0.05
11/27/2016 0.00
11/28/2016 0.00
11/29/2016 0.01
11/30/2016 0.03
12/1/2016 0.91
12/2/2016 0.07
12/3/2016 0.00
12/4/2016 0.00
12/5/2016 0.40
12/6/2016 0.13
12/7/2016 0.10
12/8/2016 T
12/9/2016 0.09
12/10/2016 0.00
12/11/2016 0.00
12/12/2016 0.52
12/13/2016 0.09
12/14/2016 0.01
12/15/2016 0.07
12/16/2016 0.00
12/17/2016 0.17
12/18/2016 0.48
12/19/2016 0.03
12/20/2016 T
12/21/2016 T
12/22/2016 0.19
12/23/2016 0.05
12/24/2016 0.06
12/25/2016 0.03
12/26/2016 0.00
12/27/2016 0.50
12/28/2016 0.11
12/29/2016 0.04
12/30/2016 0.31
12/31/2016 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2017 0.31
1/2/2017 0.00
1/3/2017 0.11
1/4/2017 1.13
1/5/2017 0.28
1/6/2017 0.00
1/7/2017 0.00
1/8/2017 T
1/9/2017 0.02
1/10/2017 0.02
1/11/2017 0.56
1/12/2017 0.13
1/13/2017 0.02
1/14/2017 0.00
1/15/2017 0.00
1/16/2017 0.00
1/17/2017 0.00
1/18/2017 0.20
1/19/2017 0.00
1/20/2017 0.03
1/21/2017 0.03
1/22/2017 0.02
1/23/2017 0.00
1/24/2017 T
1/25/2017 0.24
1/26/2017 0.07
1/27/2017 0.01
1/28/2017 0.05
1/29/2017 0.09
1/30/2017 0.04
1/31/2017 0.00
2/1/2017 0.05
2/2/2017 0.01
2/3/2017 0.02
2/4/2017 0.00
2/5/2017 0.04
2/6/2017 0.08
2/7/2017 0.09
2/8/2017 0.66
2/9/2017 0.00
2/10/2017 0.00
2/11/2017 0.11
2/12/2017 0.01
2/13/2017 0.74
2/14/2017 0.00
2/15/2017 1.00
2/16/2017 0.05
2/17/2017 T
2/18/2017 0.00
2/19/2017 0.00
2/20/2017 0.00
2/21/2017 0.00
2/22/2017 0.09
2/23/2017 0.00
2/24/2017 0.03
2/25/2017 0.12
2/26/2017 0.51
2/27/2017 0.00
2/28/2017 0.00
3/1/2017 0.61
3/2/2017 0.26
3/3/2017 0.00
3/4/2017 T
3/5/2017 0.00
3/6/2017 **
3/7/2017 **
3/8/2017 **
3/9/2017 0.65
3/10/2017 0.00
3/11/2017 0.02
3/12/2017 0.00
3/13/2017 0.00
3/14/2017 0.01
3/15/2017 0.50
3/16/2017 0.09
3/17/2017 0.00
3/18/2017 0.00
3/19/2017 0.00
3/20/2017 0.00
3/21/2017 0.11
3/22/2017 T
3/23/2017 0.00
3/24/2017 0.15
3/25/2017 0.70
3/26/2017 0.00
3/27/2017 0.11
3/28/2017 0.47
3/29/2017 T
3/30/2017 0.00
3/31/2017 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2017 0.44
4/2/2017 0.00
4/3/2017 0.00
4/4/2017 0.44
4/5/2017 0.84
4/6/2017 0.05
4/7/2017 1.66
4/8/2017 0.05
4/9/2017 0.00
4/10/2017 0.00
4/11/2017 0.18
4/12/2017 0.09
4/13/2017 0.03
4/14/2017 0.00
4/15/2017 0.00
4/16/2017 0.79
4/17/2017 0.31
4/18/2017 0.00
4/19/2017 0.00
4/20/2017 0.26
4/21/2017 0.26
4/22/2017 0.13
4/23/2017 0.00
4/24/2017 0.00
4/25/2017 0.00
4/26/2017 0.43
4/27/2017 0.00
4/28/2017 0.17
4/29/2017 0.00
4/30/2017 0.00
5/1/2017 0.87
5/2/2017 1.26
5/3/2017 0.10
5/4/2017 0.00
5/5/2017 0.48
5/6/2017 1.72
5/7/2017 0.63
5/8/2017 0.06
5/9/2017 0.02
5/10/2017 0.00
5/11/2017 0.00
5/12/2017 0.00
5/13/2017 0.03
5/14/2017 0.33
5/15/2017 0.53
5/16/2017 0.00
5/17/2017 0.00
5/18/2017 0.00
5/19/2017 0.04
5/20/2017 0.00
5/21/2017 0.00
5/22/2017 0.33
5/23/2017 0.00
5/24/2017 0.00
5/25/2017 0.00
5/26/2017 0.61
5/27/2017 0.05
5/28/2017 0.00
5/29/2017 0.38
5/30/2017 0.84
5/31/2017 0.12
6/1/2017 0.08
6/2/2017 0.01
6/3/2017 0.00
6/4/2017 0.00
6/5/2017 0.01
6/6/2017 0.66
6/7/2017 0.45
6/8/2017 0.00
6/9/2017 0.00
6/10/2017 0.00
6/11/2017 0.00
6/12/2017 0.00
6/13/2017 0.00
6/14/2017 0.00
6/15/2017 0.00
6/16/2017 0.83
6/17/2017 T
6/18/2017 0.05
6/19/2017 0.02
6/20/2017 0.24
6/21/2017 0.13
6/22/2017 0.00
6/23/2017 **
6/24/2017 **
6/25/2017 **
6/26/2017 0.85
6/27/2017 **
6/28/2017 **
6/29/2017 1.26
6/30/2017 0.93
Day of YearDaily PrcpMultiday Prcp
7/1/2017 0.20
7/2/2017 1.24
7/3/2017 0.50
7/4/2017 0.00
7/5/2017 0.00
7/6/2017 0.00
7/7/2017 0.22
7/8/2017 0.97
7/9/2017 0.00
7/10/2017 0.74
7/11/2017 0.04
7/12/2017 0.84
7/13/2017 0.11
7/14/2017 0.00
7/15/2017 0.64
7/16/2017 0.00
7/17/2017 0.08
7/18/2017 T
7/19/2017 0.00
7/20/2017 0.02
7/21/2017 0.00
7/22/2017 0.00
7/23/2017 0.00
7/24/2017 0.77
7/25/2017 1.89
7/26/2017 0.00
7/27/2017 0.07
7/28/2017 0.00
7/29/2017 0.00
7/30/2017 0.00
7/31/2017 0.00
8/1/2017 0.00
8/2/2017 0.00
8/3/2017 0.00
8/4/2017 0.15
8/5/2017 0.04
8/6/2017 0.03
8/7/2017 T
8/8/2017 0.00
8/9/2017 0.00
8/10/2017 0.00
8/11/2017 0.02
8/12/2017 0.38
8/13/2017 0.16
8/14/2017 0.00
8/15/2017 0.00
8/16/2017 0.09
8/17/2017 0.00
8/18/2017 1.00
8/19/2017 0.06
8/20/2017 0.03
8/21/2017 0.00
8/22/2017 0.00
8/23/2017 1.43
8/24/2017 T
8/25/2017 0.00
8/26/2017 0.00
8/27/2017 0.00
8/28/2017 0.00
8/29/2017 0.00
8/30/2017 0.00
8/31/2017 0.04
9/1/2017 0.00
9/2/2017 0.00
9/3/2017 0.19
9/4/2017 0.31
9/5/2017 **
9/6/2017 **
9/7/2017 **
9/8/2017 **
9/9/2017 **
9/10/2017 1.08
9/11/2017 0.00
9/12/2017 0.00
9/13/2017 0.00
9/14/2017 0.00
9/15/2017 0.00
9/16/2017 0.00
9/17/2017 0.00
9/18/2017 0.00
9/19/2017 0.00
9/20/2017 T
9/21/2017 0.00
9/22/2017 0.00
9/23/2017 **
9/24/2017 **
9/25/2017 **
9/26/2017 **
9/27/2017 **
9/28/2017 0.00
9/29/2017 0.04
9/30/2017 **



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2016 8:00 AM 0.00 0.0 M M M Monthly precip. recorded - 47 mm, monthly mean - 87 mm!
10/2/2016 8:00 AM 0.08 M M M M Light rain, starting early morning.
10/3/2016 8:00 AM 0.07 M M M M Light rain then drizzle until 10.00 am, light rain today, early morning to 7.30 am.
10/4/2016 8:00 AM 0.00 0.0 M M M Heavy dew.
10/5/2016 8:00 AM 0.00 0.0 M M M
10/6/2016 8:00 AM 0.00 0.0 M M M
10/7/2016 8:00 AM 0.00 0.0 M M M
10/8/2016 8:00 AM 0.00 0.0 M M M Fine drizzle just starting.
10/9/2016 8:00 AM 0.43 M M M M Light to medium rain from 9.00 am to 1.00 pm
10/10/2016 8:00 AM 0.00 0.0 M M M First frost.
10/11/2016 8:00 AM 0.00 0.0 M M M
10/12/2016 8:00 AM 0.00 0.0 M M M
10/13/2016 8:00 AM 0.03 M M M M Light rain, early morning. Now stopped.
10/14/2016 8:00 AM 0.00 0.0 M M M
10/15/2016 6:00 AM 0.00 0.0 M M M
10/16/2016 8:00 AM 0.00 0.0 M M M
10/17/2016 8:00 AM 0.29 M M M M
10/18/2016 8:00 AM 0.38 M M M M
10/20/2016 8:00 AM 0.00 0.0 M M M
10/21/2016 8:00 AM 0.93 M M M M
10/22/2016 8:00 AM 0.82 M M M M
10/23/2016 8:00 AM 0.27 M M M M
10/24/2016 8:00 AM 0.00 0.0 M M M
10/25/2016 8:00 AM 0.00 0.0 M M M
10/26/2016 8:00 AM T M M M M
10/27/2016 8:00 AM 0.00 0.0 M M M
10/28/2016 8:00 AM 0.50 M M M M
10/29/2016 8:00 AM 0.31 M M M M
10/30/2016 8:00 AM 0.03 M M M M
10/31/2016 8:00 AM 0.00 0.0 M M M
11/1/2016 8:00 AM 0.00 0.0 M M M
11/2/2016 8:00 AM 0.05 M M M M
11/3/2016 8:00 AM 0.23 M M M M
11/4/2016 8:00 AM 0.07 M M M M
11/5/2016 8:00 AM 0.00 0.0 M M M
11/6/2016 8:00 AM 0.05 M M M M
11/7/2016 8:00 AM 0.00 0.0 M M M
11/8/2016 8:00 AM 0.00 0.0 M M M
11/9/2016 8:00 AM 0.01 M M M M
11/10/2016 8:00 AM 0.00 0.0 M M M
11/11/2016 8:00 AM 0.02 M M M M
11/12/2016 8:00 AM 0.00 0.0 M M M
11/13/2016 8:00 AM 0.00 0.0 M M M
11/14/2016 8:00 AM 0.00 0.0 M M M
11/15/2016 8:00 AM 0.00 0.0 M M M
11/16/2016 8:00 AM 0.15 M M M M
11/17/2016 8:00 AM 0.02 M M M M
11/18/2016 8:00 AM 0.00 0.0 M M M
11/19/2016 8:00 AM 0.00 0.0 M M M
11/20/2016 8:00 AM 0.09 0.0 0.00 0.0 M Rain changing to sleet/snow, windy.
11/21/2016 8:00 AM 0.46 3.9 0.33 4.0 M Sleet changing to snow morning of 20th, snow continuing through day and night, high winds, blowing snow. Temp -3.8degC, snow depth from 3 cm to 15 cm.
11/22/2016 8:00 AM 0.24 3.3 M M M Snowfall in high wind for most of day and evening
11/23/2016 8:00 AM 0.00 0.0 M M M
11/24/2016 8:00 AM 0.09 0.7 M M M Snow began near dawn, continuing.
11/25/2016 8:00 AM 0.28 2.2 M M M Light snow most of 8.00-15.00 period. Freezing fog overnight. -0.2degC.
11/26/2016 8:00 AM 0.05 T M M M Light intermittent snow/drizzle on 25th. 0.1 mm ice on measuring surface today, +0.5degC.
11/27/2016 8:00 AM 0.00 0.0 M M M
11/28/2016 8:00 AM 0.00 0.0 M M M
11/29/2016 8:00 AM 0.01 M M M M Light freezing rain since early morning. 0.1 mm ice on surface.
11/30/2016 8:00 AM 0.03 M M M M
12/1/2016 8:00 AM 0.91 M M M M Fog, to drizzle, to light rain yesterday, heavy rain overnight. +6degC.
12/2/2016 8:00 AM 0.07 0.0 M M M Light rain early then drizzle at 8.00 am.
12/3/2016 8:00 AM 0.00 0.0 M M M
12/4/2016 8:00 AM 0.00 0.0 M M M
12/5/2016 8:00 AM 0.40 4.3 M 4.3 M Snow began after midnight, continuing, -2.9degC
12/6/2016 8:00 AM 0.13 1.5 M M M Snow continued until about noon.
12/7/2016 8:00 AM 0.10 0.7 M M M
12/8/2016 8:00 AM T T M M M
12/9/2016 8:00 AM 0.09 1.5 M M M
12/10/2016 7:30 AM 0.00 0.0 M M M
12/11/2016 8:00 AM 0.00 0.0 M M M
12/12/2016 8:00 AM 0.52 9.7 M M M Snow began after 11.00 pm, continuing.
12/13/2016 8:00 AM 0.09 0.9 M M M
12/14/2016 8:00 AM 0.01 1.0 M M M
12/15/2016 8:00 AM 0.07 2.4 M M M
12/16/2016 8:00 AM 0.00 0.0 M M M
12/17/2016 8:00 AM 0.17 2.3 M M M Snow began overnight, continuing
12/18/2016 8:00 AM 0.48 3.2 M M M Snow 8.00 am to noon (4.7 cm) on 17th, then overnight starting about 10.00 pm, including 0.5 cm of freezing rain crust 1-cm below the 8.1 mm surface at 8.00 am today. Snow continuing, -6.5 degC.
12/19/2016 8:00 AM 0.03 0.4 M M M Intermittent snow until about noon.
12/20/2016 8:00 AM T T M M M
12/21/2016 8:00 AM T 0.0 M M M
12/22/2016 8:00 AM 0.19 3.3 M M M Snowfall overnight, continuing, -0.5degC
12/23/2016 8:00 AM 0.05 0.3 M M M 2 cm snow between 8 am and noon, reduced by melting to 0.8 cm by +2degC temps.
12/24/2016 8:00 AM 0.06 0.4 M M M Wet snow falling, +0.6degC
12/25/2016 8:00 AM 0.03 0.0 M M M Snow melted (+4degC) then refroze on measuring platform. -4.8degC
12/26/2016 8:00 AM 0.00 0.0 M M M
12/27/2016 8:00 AM 0.50 0.0 M M M Light freezing rain in afternoon, changing to rain in evening, sometimes heavy. Temperature rose from -10.6degC at 8.00 am on 26th to +2.8degC in 24 h
12/28/2016 8:00 AM 0.11 1.0 M M M Light snow overnight.
12/29/2016 8:00 AM 0.04 0.5 M M M Light snow began about 6.00 am, continuing, -4.9degC
12/30/2016 8:00 AM 0.31 3.5 M M M Snowfall 8.00 am to about noon, occasionally in pm, snow overnight.
12/31/2016 8:00 AM 0.00 0.0 M M M
1/1/2017 8:00 AM 0.31 3.9 M M M Snowfall, sometimes heavy, from 11.00 am to near midnight.
1/2/2017 8:00 AM 0.00 0.0 M M M
1/3/2017 8:00 AM 0.11 0.2 M M M Ice pellets and freezing rain since 5.30 am
1/4/2017 8:00 AM 1.13 3.0 M M M Freezing rain during day, changing to granular snow by 10.00 pm, 0.5 cm, WE 18.8 mm, +0.1degC. Snow during night, 7.7 cm, WE 9.9 mm, +0.1degC. 24-h total 28.7 mm.
1/5/2017 8:00 AM 0.28 2.9 M M M Intermittent "wet" snow in morning, snow squalls in afternoon and eve.
1/6/2017 8:00 AM 0.00 0.0 M M M
1/7/2017 8:00 AM 0.00 0.0 M M M
1/8/2017 8:00 AM T T M M M Light snow began at 7.45 am.
1/9/2017 8:00 AM 0.02 0.4 M M M Intermittent light snow until about noon.
1/10/2017 8:00 AM 0.02 0.4 M M M
1/11/2017 8:00 AM 0.56 1.7 M M M Snowfall of about 10 cm, reduced to 4.3 cm by rainfall and melting. +3.2degC at 8.00 am.
1/12/2017 8:00 AM 0.13 0.0 M M M
1/13/2017 8:00 AM 0.02 0.4 M M M Snow during early morning, temp. dropping to -5.4degC by 8.00am
1/14/2017 8:00 AM 0.00 0.0 M M M
1/15/2017 8:00 AM 0.00 0.0 M M M
1/16/2017 8:00 AM 0.00 0.0 M M M
1/17/2017 8:00 AM 0.00 0.0 M M M
1/18/2017 8:00 AM 0.20 0.8 M M M Granular snow overnight, -3.6degC
1/19/2017 8:00 AM 0.00 0.0 M M M
1/20/2017 8:00 AM 0.03 0.0 M M M
1/21/2017 8:00 AM 0.03 0.0 M M M Intermittent drizzle, +0.2 degC.
1/22/2017 8:00 AM 0.02 0.0 M M M Drizzle, +1.4degC
1/23/2017 8:00 AM 0.00 0.0 M M M
1/24/2017 8:00 AM T T M M M Freezing rain just starting, -2.2degC.
1/25/2017 8:00 AM 0.24 0.9 M M M Base of O.2 mm frozen rain during early morning, plus 2.2 mm snowfall during daytime and evening.
1/26/2017 8:00 AM 0.07 0.3 M M M Saturated snow, +0.5degC
1/27/2017 8:00 AM 0.01 T M M M Light snow flurries during the day, melted on the ground and in measuring cylinder overnight. refrozen now at -1.2dgC
1/28/2017 8:00 AM 0.05 0.7 M M M Light snow started about 9.00 pm.
1/29/2017 8:00 AM 0.09 1.0 M M M Daytime flurries then snow in evening. -4.3degC
1/30/2017 8:00 AM 0.04 0.7 M M M Very light snow most of day, to about 4.30 pm. -14.5degC
1/31/2017 8:00 AM 0.00 0.0 M M M Clear, -18.9degC
2/1/2017 8:00 AM 0.05 0.5 M M M Snow overnight, -11.3degC
2/2/2017 8:00 AM 0.01 1.0 M M M Light snow overnight, now -14.0degC
2/3/2017 8:00 AM 0.02 0.7 M M M Light snow overnight
2/4/2017 8:00 AM 0.00 0.0 M M M
2/5/2017 8:00 AM 0.04 0.3 M M M Light snow overnight. -4.8degC
2/6/2017 8:00 AM 0.08 1.4 M M M Light snow in late aft. and evening. -12.8degC
2/7/2017 8:00 AM 0.09 1.5 M M M Light snow from 6.00 pm through evening/night. -10.2degC
2/8/2017 8:00 AM 0.66 1.3 M M M 2.5 cm snow by 6.00 pm on 7th, -10degC. Rain and +2degC at 4.30 am. Total accum. 3.3 cm at 8.00 am: 2.4 cm snow, 0.5 cm ice, 0.4 cm granular snow, -1.2 degC.
2/9/2017 8:00 AM 0.00 0.0 M M M CAVU -14.7degC
2/10/2017 8:00 AM 0.00 0.0 M M M
2/11/2017 8:00 AM 0.11 2.0 M M M Light snow from 6.00 pm, through evening...
2/12/2017 8:00 AM 0.01 0.2 M M M Snow flurries throughout day. -11.2degC
2/13/2017 8:00 AM 0.74 8.2 M M M 15.5 cm between noon and 6.00 pm, a further 5.4 overnight. -7.5degC
2/14/2017 8:00 AM 0.00 0.0 M M M
2/15/2017 8:00 AM 1.00 6.3 M M M Snow fell from 6.00 pm, light now heavy. -4.4degC
2/16/2017 8:00 AM 0.05 1.1 M M M Snow 8.00 to 11.00 am, flurries in evening. -8.7degC
2/17/2017 8:00 AM T T M M M O.1 mm WE in cylinder, less than 50% cover of 1-2 mm light fluffy snow on surface. -9.9degC
2/18/2017 8:00 AM 0.00 0.0 M M M -5.6degC, CAVU
2/19/2017 8:00 AM 0.00 0.0 M M M Yesterday +10.8degC, great loss of snow depth.At 8.00 am +1.5 degC.
2/20/2017 8:00 AM 0.00 0.0 M M M
2/21/2017 8:00 AM 0.00 0.0 M M M
2/22/2017 8:00 AM 0.09 0.0 M M M Rain in evening. +1.2degC
2/23/2017 8:00 AM 0.00 0.0 M M M Rain imminent, +6.9degC
2/24/2017 8:00 AM 0.03 0.0 M M M Three short showers from 9 am to noon.
2/25/2017 8:00 AM 0.12 0.0 M M M Intermittent rain throughout period. +0.7degC, foggy.
2/26/2017 8:00 AM 0.51 T M M M Rain showers during day, >12 mm, short freezing rain/snow shower at about 10.30 pm, deposited a trace of spherical granules.
2/27/2017 8:00 AM 0.00 0.0 M M M +0.5degC
2/28/2017 8:00 AM 0.00 0.0 M M M -0.9degC
3/1/2017 8:00 AM 0.61 0.0 M M M Rain overnight, continuing. +2.3degC
3/2/2017 8:00 AM 0.26 1.3 M M M 5.6 mm from light rain 8.00 to 10.00 am, and 0.9 mm (3.3 mm depth) from fine snow about 5.30 am to 8.00 am. -10.7degC, high wind, blowing snow. Total W.E. 6.5 mm.
3/3/2017 8:00 AM 0.00 0.0 M M M -14degC
3/4/2017 8:00 AM T 0.1 M M M Nippy -18.3decC and windy.
3/5/2017 8:00 AM 0.00 0.0 M M M
3/10/2017 8:00 AM 0.00 0.0 M M M -6.0degC, light snow just starting.
3/11/2017 8:00 AM 0.02 T M M M Light flurries throughout day, and blowing snow (high winds). measuring surface half clear, half 0.2 cm. -16.7degC
3/12/2017 8:00 AM 0.00 0.0 M M M
3/13/2017 8:00 AM 0.00 0.0 M M M -15.0degC
3/14/2017 8:00 AM 0.01 T M M M Light snow just started, -10.3degC.
3/15/2017 8:00 AM 0.50 6.9 M M M Light snow and blowing snow for most of 24 h. -10.3degC, light snow continuing.
3/16/2017 8:00 AM 0.09 1.2 M M M Light blowing snow in morning, wind strong thought period. -10.9degC
3/17/2017 8:00 AM 0.00 0.0 M M M Sunny, -10.8degC
3/18/2017 8:00 AM 0.00 0.0 M M M
3/19/2017 8:00 AM 0.00 0.0 M M M
3/20/2017 8:00 AM 0.00 0.0 M M M
3/21/2017 8:00 AM 0.11 0.1 M M M 0.2 cm wet snow on surface, melting with +1.1degC. Wet snow and rain continuing.
3/22/2017 8:00 AM T T M M M
3/23/2017 8:00 AM 0.00 0.0 M M M
3/24/2017 8:00 AM 0.15 1.9 M M M Snowing, -2.7degC
3/25/2017 8:00 AM 0.70 4.1 M M M Snow, throughout period mixed with wet snow, sleet, freezing rain at times. Snow depth 6.5 cm from 8.00 am to 1.30 pm. 10.50 cm wet snow at 8.00 am, with frozen layer about 1 cm at base, -0.8degC.
3/26/2017 8:00 AM 0.00 0.0 M M M
3/27/2017 8:00 AM 0.11 T M M M 0.1 mm of frozen water on surface, likely from freezing rain/rain in early morning. Drizzle and 0 degC.
3/28/2017 8:00 AM 0.47 0.0 M M M Liquid precip., and fog since early evening, +1.3degC
3/29/2017 8:00 AM T 0.0 M M M
3/30/2017 8:00 AM 0.00 0.0 M M M
3/31/2017 8:00 AM 0.00 0.0 M M M
4/1/2017 8:00 AM 0.44 2.6 M M M Snow/wet snow/sleet 6.7 cm, discontinuous over 24 hr. period, temp. +0.5 to 1.0degC. Now +0.5degC and fine snow.
4/2/2017 8:00 AM 0.00 0.0 M M M
4/3/2017 8:00 AM 0.00 0.0 M 0.0 M
4/4/2017 8:00 AM 0.44 0.0 M M M Rain since before 4.30 am, +0.9degC, light rain continues
4/5/2017 8:00 AM 0.84 M M M M Almost continuous rain from high to moderate for 23 hours.
4/6/2017 8:00 AM 0.05 M M M M Light rain and drizzle, +2.8degC
4/7/2017 8:00 AM 1.66 M M M M Light to moderate rain for 24 h. 25 mm by 6.00 pm, 41.8 mm total, strong winds. +1.6degC, still windy and snow flurries beginning.
4/8/2017 8:00 AM 0.05 0.0 M M M Periodic light snow and/or rain showers until 4.00 pm. Below zero early morning; -0.5degC
4/9/2017 8:00 AM 0.00 0.0 M M M
4/10/2017 8:00 AM 0.00 0.0 M M M +12.3degC at 8.00 am
4/11/2017 8:00 AM 0.18 M M M M Rain showers with thunder late aft. and evening.
4/12/2017 8:00 AM 0.09 M M M M
4/13/2017 8:00 AM 0.03 M M M M
4/14/2017 8:00 AM 0.00 0.0 M M M
4/15/2017 8:00 AM 0.00 0.0 M M M
4/16/2017 8:00 AM 0.79 M M M M Showers intermittent from 3.00 to 11.00 pm, heavier rain overnight, especially ~ 1.30 am. +13.7degC
4/17/2017 8:00 AM 0.31 M M M M Intermittent rain, sometimes heavy, from noon to 6 pm. +5.8degC
4/18/2017 8:00 AM 0.00 0.0 M M M
4/19/2017 8:00 AM 0.00 0.0 M M M
4/20/2017 8:00 AM 0.26 M M M M
4/21/2017 8:00 AM 0.26 M M M M Rain showers overnight, drizzle at 8.00 am, +7.5degC
4/22/2017 8:00 AM 0.13 M M M M Rain showers 8.00 am to noon; light rain 7.30-8.00 am
4/23/2017 8:00 AM 0.00 0.0 M M M
4/24/2017 8:00 AM 0.00 0.0 M M M
4/25/2017 8:00 AM 0.00 0.0 M M M
4/26/2017 8:00 AM 0.43 M M M M Discontinuous light rain since 3.00 pm. +9.7degC
4/27/2017 8:00 AM 0.00 0.0 M M M
4/28/2017 8:00 AM 0.17 M M M M Rain during the night.
4/29/2017 8:00 AM 0.00 0.0 M M M
4/30/2017 8:00 AM 0.00 0.0 M M M Total precip. for month = 155.3 mm, Ottawa mean = 68 mm. 4th highest monthly amount since May 2012.
5/1/2017 8:00 AM 0.87 M M M M Sporadic showers, heavier overnight, continuing.
5/2/2017 8:00 AM 1.26 M M M M
5/3/2017 8:00 AM 0.10 M M M M
5/4/2017 8:00 AM 0.00 0.0 M M M
5/5/2017 8:00 AM 0.48 M M M M Right rain began 9.00 pm, continuing.
5/6/2017 8:00 AM 1.72 M M M M Rain almost continuous for 24 h: 25 mm by 6.00 pm, 43.8 mm at 8.00 am, with no precip. for last 15 min.
5/7/2017 8:00 AM 0.63 M M M M Almost continuous light to medium rainfall for 24 h; continuing
5/8/2017 8:00 AM 0.06 0.3 M M M Rainfall 1.0 mm, on morning of 7th; 0.5 mm WE of snow, 6.30-8.00 am, +1.4 degC, total WE 1.5 mm.
5/9/2017 8:00 AM 0.02 T M M M Snow flurries intermittent, melted then refrozen on surface overnight (-1degC). Now dry and +1.5degC
5/10/2017 8:00 AM 0.00 0.0 M M M
5/11/2017 8:00 AM 0.00 0.0 M M M
5/12/2017 8:00 AM 0.00 0.0 M M M
5/13/2017 8:00 AM 0.03 M M M M
5/14/2017 8:00 AM 0.33 M M M M
5/15/2017 8:00 AM 0.53 M M M M Showers and a thunder shower in late afternoon
5/16/2017 8:00 AM 0.00 0.0 M M M
5/17/2017 8:00 AM 0.00 0.0 M M M
5/18/2017 8:00 AM 0.00 0.0 M M M
5/19/2017 8:00 AM 0.04 M M M M Short showers around 6.00 pm and 33.0degC. High wind all 24 h, now +11.3degC.
5/20/2017 8:00 AM 0.00 0.0 M M M
5/21/2017 8:00 AM 0.00 0.0 M M M
5/22/2017 8:00 AM 0.33 M M M M Rain showers in the night.
5/23/2017 8:00 AM 0.00 0.0 M M M
5/24/2017 8:00 AM 0.00 0.0 M M M
5/25/2017 8:00 AM 0.00 0.0 M M M
5/26/2017 8:00 AM 0.61 M M M M Rain started mid afternoon, showers until early morn, drizzle now.
5/27/2017 8:00 AM 0.05 M M M M Drizzle to periods of light rain until 4.00 pm.
5/28/2017 8:00 AM 0.00 0.0 M M M
5/29/2017 8:00 AM 0.38 M M M M About 1 mm rain near midnight, 8.6 mm between 7 and 8 am.
5/30/2017 8:00 AM 0.84 M M M M Almost continuous rain from 8.00 am to 5.00 pm.
5/31/2017 8:00 AM 0.12 M M M M Rain shower in evening
6/1/2017 8:00 AM 0.08 M M M M During 5 years of recordings for CoCoRaHS, we received the highest monthly rainfall of any month: 212.4 mm (May mean for Ottawa = 81 mm). Previous high month was 194 mm in Aug.14. Last month was wettest April also, recorded at 155.3 mm (mean 68 mm)
6/2/2017 8:00 AM 0.01 M M M M Two light, short showers around 6.00 pm
6/3/2017 8:00 AM 0.00 0.0 M M M
6/4/2017 8:00 AM 0.00 0.0 M M M
6/5/2017 8:00 AM 0.01 M M M M Light shower and spitting rain in afternoon
6/6/2017 8:00 AM 0.66 M M M M Rain from late aft, ongoing.
6/7/2017 8:00 AM 0.45 M M M M Rain most of day, until 6.00 pm
6/8/2017 8:00 AM 0.00 0.0 M M M
6/9/2017 8:00 AM 0.00 0.0 M M M
6/10/2017 8:00 AM 0.00 0.0 M M M
6/11/2017 8:00 AM 0.00 0.0 M M M
6/12/2017 8:00 AM 0.00 0.0 M M M
6/13/2017 8:00 AM 0.00 0.0 M M M
6/14/2017 8:00 AM 0.00 0.0 M M M
6/15/2017 8:00 AM 0.00 0.0 M M M
6/16/2017 8:00 AM 0.83 M M M M Rain showers, at times heavy, from about 10.00 pm, through night. No precip. at 7.00 am
6/17/2017 8:00 AM T M M M M
6/18/2017 8:00 AM 0.05 M M M M Short heavy shower mid afternoon 0.5 mm, and some more overnight
6/19/2017 8:00 AM 0.02 M M M M Short sharp storm mid afternoon, thunder storms in neighbourhood until late evening
6/20/2017 8:00 AM 0.24 M M M M Rain storm overnight,heavy
6/21/2017 8:00 AM 0.13 M M M M Rain overnight
6/22/2017 8:00 AM 0.00 0.0 M M M
6/30/2017 8:00 AM 0.93 M M M M Heavy rain, some thunder showers from 3.00 pm (last measurement) until some time after 11.00 pm. Heavy fog this morning.
7/1/2017 8:00 AM 0.20 M M M M Yet more rain! Happy Sesquicentennial!!
7/2/2017 8:00 AM 1.24 M M M M Periodic rain and thunder showers from 8.30 am to 10.00 pm
7/3/2017 8:00 AM 0.50 M M M M Some light showers, then heavy thunder shower at 4.30 to 5.30 pm
7/4/2017 8:00 AM 0.00 0.0 M M M
7/5/2017 8:00 AM 0.00 0.0 M M M
7/6/2017 8:00 AM 0.00 0.0 M M M
7/7/2017 8:00 AM 0.22 M M M M Rain shower overnight
7/8/2017 8:00 AM 0.97 M M M M Storms from 4-5 pm and during the night
7/9/2017 8:00 AM 0.00 0.0 M M M
7/10/2017 8:00 AM 0.74 M M M M
7/11/2017 8:00 AM 0.04 M M M M Short sharp storm in late afternoon.
7/12/2017 8:00 AM 0.84 M M M M Torrential rain in late afternoon.
7/13/2017 8:00 AM 0.11 M M M M
7/14/2017 8:00 AM 0.00 0.0 M M M
7/15/2017 8:00 AM 0.64 M M M M Drizzle/light rain occasionally through day, heavy rain around 7-8 pm, and again during the night (4 am)
7/16/2017 8:00 AM 0.00 0.0 M M M
7/17/2017 8:00 AM 0.08 M M M M Light rain showers late afternoon
7/18/2017 8:00 AM T M M M M
7/19/2017 8:00 AM 0.00 0.0 M M M
7/20/2017 8:00 AM 0.02 M M M M Short shower at 6.30 pm
7/21/2017 8:00 AM 0.00 0.0 M M M
7/22/2017 8:00 AM 0.00 0.0 M M M
7/23/2017 8:00 AM 0.00 0.0 M M M
7/24/2017 8:00 AM 0.77 M M M M Heavy rain began by 4.30 am, lighter at 8.00 am
7/25/2017 8:00 AM 1.89 M M M M Almost continuous rain throughout day and evening, sometimes heavy. Ended by 11.00 pm, likely none overnight.
7/26/2017 8:00 AM 0.00 0.0 M M M
7/27/2017 8:00 AM 0.07 M M M M Light rain in evening, heavier shower(s?) in night
7/28/2017 8:00 AM 0.00 0.0 M M M
7/29/2017 8:00 AM 0.00 0.0 M M M
7/30/2017 8:00 AM 0.00 0.0 M M M
7/31/2017 8:00 AM 0.00 0.0 M M M
8/1/2017 8:00 AM 0.00 0.0 M M M
8/2/2017 8:00 AM 0.00 0.0 M M M
8/3/2017 8:00 AM 0.00 0.0 M M M
8/4/2017 8:00 AM 0.15 M M M M Light showers started after 6.00 am
8/5/2017 8:00 AM 0.04 M M M M Light showers in evening
8/6/2017 8:00 AM 0.03 M M M M Light showers late aft/evening
8/7/2017 8:00 AM T M M M M
8/8/2017 8:00 AM 0.00 0.0 M M M
8/9/2017 8:00 AM 0.00 0.0 M M M
8/10/2017 8:00 AM 0.00 0.0 M M M
8/11/2017 8:00 AM 0.02 M M M M Short heavy rain at about 6.00 pm
8/12/2017 8:00 AM 0.38 M M M M Precip'n during the night
8/13/2017 8:00 AM 0.16 M M M M Rain showers 6-7 pm
8/14/2017 8:00 AM 0.00 0.0 M M M
8/15/2017 8:00 AM 0.00 0.0 M M M
8/16/2017 8:00 AM 0.09 M M M M Rain shower mid aft.
8/17/2017 8:00 AM 0.00 0.0 M M M
8/18/2017 8:00 AM 1.00 M M M M Light s howers 9.30 to 11.00 pm, heavy rain during night, 25.3 mm total
8/19/2017 8:00 AM 0.06 M M M M Showers mid afternoon
8/20/2017 8:00 AM 0.03 M M M M Shower overnight
8/21/2017 8:00 AM 0.00 0.0 M M M
8/22/2017 8:00 AM 0.00 0.0 M M M
8/23/2017 8:00 AM 1.43 M M M M Three major storms around 9.30 am, 1.30 pm and 5.00 pm, 36.0 mm; and 0.4 mm during the night
8/24/2017 8:00 AM T M M M M
8/25/2017 8:00 AM 0.00 0.0 M M M
8/26/2017 8:00 AM 0.00 0.0 M M M
8/27/2017 8:00 AM 0.00 0.0 M M M
8/28/2017 8:00 AM 0.00 0.0 M M M
8/29/2017 8:00 AM 0.00 0.0 M M M
8/30/2017 8:00 AM 0.00 0.0 M M M
8/31/2017 8:00 AM 0.04 M M M M Shower during night
9/1/2017 8:00 AM 0.00 0.0 M M M
9/2/2017 8:00 AM 0.00 0.0 M M M
9/3/2017 8:00 AM 0.19 M M M M Showers began overnight, no precip. at 8.00 am
9/4/2017 8:00 AM 0.31 M M M M Light showers most of day, ending about 8.00 pm
9/11/2017 8:00 AM 0.00 0.0 M M M
9/12/2017 8:00 AM 0.00 0.0 M M M
9/13/2017 8:00 AM 0.00 0.0 M M M
9/14/2017 8:00 AM 0.00 0.0 M M M
9/15/2017 8:00 AM 0.00 0.0 M M M
9/16/2017 8:00 AM 0.00 0.0 M M M
9/17/2017 8:00 AM 0.00 0.0 M M M
9/18/2017 8:00 AM 0.00 0.0 M M M
9/19/2017 8:00 AM 0.00 0.0 M M M
9/20/2017 8:00 AM T M M M M
9/21/2017 8:00 AM 0.00 0.0 M M M
9/22/2017 8:00 AM 0.00 0.0 M M M
9/29/2017 8:00 AM 0.04 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
3/6/2017 3/09/2017 8:00 AM 4 0.65 M M
6/23/2017 6/26/2017 3:00 PM 4 0.85 M M
6/27/2017 6/29/2017 3:00 PM 3 1.26 M M 32.1 mm in heavy showers and some hail
9/5/2017 9/10/2017 8:00 AM 6 1.08 M M
9/23/2017 9/28/2017 9:00 AM 6 0.00 M M
9/30/2017 10/03/2017 8:00 AM 4 0.00 M M



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