Station Overview Station Location
Station Number CAN-ON-70 Latitude 48.421226
Station Name Thunder Bay 3.2 WNW - LRCA Longitude -89.278668
County Ontario Elevation (ft) 732



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 2.91 31 2.43 9 0.48 22 5 3 2 0.8 1 1
Nov 17 1.58 30 0.28 7 1.30 23 6 1 3 0.5 1 3
Dec 17 1.73 31 1.54 4 0.19 27 5 4 0 6.7 2 4
Jan 18 1.11 31 0.52 4 0.59 27 5 3 0 5.3 3 4
Feb 18 1.31 28 0.00 0 1.31 28 2 0 0 0.0 0 0
March 18 0.22 31 0.00 0 0.22 31 3 0 0 0.0 0 0
April 18 0.37 30 0.13 9 0.24 21 5 1 1 2.0 2 3
May 18 1.73 31 1.56 19 0.17 12 3 6 0 0.0 0 0
June 18 1.51 30 0.12 16 1.39 14 3 1 1 0.0 0 0
July 18 3.46 31 0.90 21 2.56 10 3 5 1 0.0 0 0
Aug 18 1.91 31 1.02 15 0.89 16 3 5 0 0.0 0 0
Sept 18 3.59 30 1.81 16 1.78 14 3 6 0 0.0 0 0
Water Year Totals: 21.43" 365 days 10.31" 120 11.12" 245 days 46 35 days 8 days 15.3" 9 days 15 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 0.06
10/3/2017 0.85
10/4/2017 0.67
10/5/2017 T
10/6/2017 0.00
10/7/2017 **
10/8/2017 **
10/9/2017 **
10/10/2017 T
10/11/2017 0.00
10/12/2017 0.00
10/13/2017 **
10/14/2017 **
10/15/2017 **
10/16/2017 0.32
10/17/2017 0.00
10/18/2017 **
10/19/2017 **
10/20/2017 **
10/21/2017 **
10/22/2017 **
10/23/2017 **
10/24/2017 **
10/25/2017 0.03
10/26/2017 T
10/27/2017 0.91
10/28/2017 **
10/29/2017 **
10/30/2017 0.07
10/31/2017 **
11/1/2017 **
11/2/2017 0.29
11/3/2017 T
11/4/2017 **
11/5/2017 **
11/6/2017 0.49
11/7/2017 T
11/8/2017 **
11/9/2017 **
11/10/2017 **
11/11/2017 **
11/12/2017 **
11/13/2017 0.16
11/14/2017 0.00
11/15/2017 0.00
11/16/2017 0.28
11/17/2017 **
11/18/2017 **
11/19/2017 **
11/20/2017 0.36
11/21/2017 0.00
11/22/2017 T
11/23/2017 **
11/24/2017 T
11/25/2017 **
11/26/2017 **
11/27/2017 T
11/28/2017 **
11/29/2017 **
11/30/2017 **
12/1/2017 0.00
12/2/2017 **
12/3/2017 0.00
12/4/2017 0.50
12/5/2017 0.96
12/6/2017 0.03
12/7/2017 **
12/8/2017 **
12/9/2017 **
12/10/2017 **
12/11/2017 0.05
12/12/2017 0.05
12/13/2017 **
12/14/2017 **
12/15/2017 **
12/16/2017 **
12/17/2017 **
12/18/2017 0.01
12/19/2017 **
12/20/2017 **
12/21/2017 0.13
12/22/2017 **
12/23/2017 **
12/24/2017 **
12/25/2017 **
12/26/2017 **
12/27/2017 **
12/28/2017 **
12/29/2017 **
12/30/2017 **
12/31/2017 **
Day of YearDaily PrcpMultiday Prcp
1/1/2018 **
1/2/2018 **
1/3/2018 **
1/4/2018 **
1/5/2018 0.11
1/6/2018 **
1/7/2018 **
1/8/2018 **
1/9/2018 0.22
1/10/2018 0.00
1/11/2018 0.26
1/12/2018 0.10
1/13/2018 **
1/14/2018 **
1/15/2018 0.20
1/16/2018 **
1/17/2018 **
1/18/2018 **
1/19/2018 **
1/20/2018 **
1/21/2018 **
1/22/2018 **
1/23/2018 **
1/24/2018 **
1/25/2018 **
1/26/2018 0.06
1/27/2018 **
1/28/2018 **
1/29/2018 **
1/30/2018 0.00
1/31/2018 0.16
2/1/2018 **
2/2/2018 **
2/3/2018 **
2/4/2018 **
2/5/2018 **
2/6/2018 **
2/7/2018 **
2/8/2018 **
2/9/2018 **
2/10/2018 **
2/11/2018 **
2/12/2018 **
2/13/2018 **
2/14/2018 **
2/15/2018 **
2/16/2018 **
2/17/2018 **
2/18/2018 **
2/19/2018 **
2/20/2018 **
2/21/2018 0.39
2/22/2018 **
2/23/2018 **
2/24/2018 **
2/25/2018 **
2/26/2018 0.92
2/27/2018 **
2/28/2018 **
3/1/2018 **
3/2/2018 **
3/3/2018 **
3/4/2018 **
3/5/2018 **
3/6/2018 **
3/7/2018 **
3/8/2018 **
3/9/2018 **
3/10/2018 **
3/11/2018 **
3/12/2018 **
3/13/2018 0.05
3/14/2018 **
3/15/2018 **
3/16/2018 **
3/17/2018 **
3/18/2018 **
3/19/2018 **
3/20/2018 0.00
3/21/2018 **
3/22/2018 **
3/23/2018 **
3/24/2018 **
3/25/2018 **
3/26/2018 **
3/27/2018 0.17
3/28/2018 **
3/29/2018 **
3/30/2018 **
3/31/2018 **
Day of YearDaily PrcpMultiday Prcp
4/1/2018 **
4/2/2018 **
4/3/2018 **
4/4/2018 **
4/5/2018 0.00
4/6/2018 **
4/7/2018 **
4/8/2018 **
4/9/2018 **
4/10/2018 **
4/11/2018 0.00
4/12/2018 T
4/13/2018 **
4/14/2018 **
4/15/2018 **
4/16/2018 0.24
4/17/2018 0.13
4/18/2018 **
4/19/2018 0.00
4/20/2018 0.00
4/21/2018 **
4/22/2018 **
4/23/2018 **
4/24/2018 0.00
4/25/2018 0.00
4/26/2018 0.00
4/27/2018 0.00
4/28/2018 0.00
4/29/2018 0.00
4/30/2018 0.00
5/1/2018 0.20
5/2/2018 0.00
5/3/2018 0.00
5/4/2018 **
5/5/2018 **
5/6/2018 **
5/7/2018 0.04
5/8/2018 0.00
5/9/2018 0.14
5/10/2018 0.04
5/11/2018 0.00
5/12/2018 0.00
5/13/2018 0.00
5/14/2018 0.00
5/15/2018 0.00
5/16/2018 0.00
5/17/2018 0.00
5/18/2018 0.03
5/19/2018 **
5/20/2018 **
5/21/2018 **
5/22/2018 **
5/23/2018 0.04
5/24/2018 0.00
5/25/2018 0.44
5/26/2018 **
5/27/2018 **
5/28/2018 0.09
5/29/2018 0.00
5/30/2018 0.00
5/31/2018 0.71
6/1/2018 0.12
6/2/2018 **
6/3/2018 **
6/4/2018 0.17
6/5/2018 0.00
6/6/2018 0.00
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 0.00
6/14/2018 0.00
6/15/2018 T
6/16/2018 **
6/17/2018 **
6/18/2018 1.12
6/19/2018 **
6/20/2018 **
6/21/2018 **
6/22/2018 **
6/23/2018 **
6/24/2018 **
6/25/2018 0.10
6/26/2018 0.00
6/27/2018 0.00
6/28/2018 0.00
6/29/2018 0.00
6/30/2018 **
Day of YearDaily PrcpMultiday Prcp
7/1/2018 **
7/2/2018 **
7/3/2018 1.93
7/4/2018 0.03
7/5/2018 T
7/6/2018 **
7/7/2018 **
7/8/2018 **
7/9/2018 0.28
7/10/2018 0.00
7/11/2018 0.00
7/12/2018 0.66
7/13/2018 0.00
7/14/2018 0.00
7/15/2018 0.00
7/16/2018 0.00
7/17/2018 0.00
7/18/2018 0.00
7/19/2018 0.00
7/20/2018 0.00
7/21/2018 0.00
7/22/2018 0.00
7/23/2018 0.00
7/24/2018 0.00
7/25/2018 0.00
7/26/2018 0.01
7/27/2018 0.18
7/28/2018 **
7/29/2018 **
7/30/2018 0.35
7/31/2018 0.02
8/1/2018 0.03
8/2/2018 **
8/3/2018 **
8/4/2018 **
8/5/2018 **
8/6/2018 **
8/7/2018 0.36
8/8/2018 0.00
8/9/2018 0.17
8/10/2018 **
8/11/2018 **
8/12/2018 **
8/13/2018 0.04
8/14/2018 0.00
8/15/2018 0.00
8/16/2018 0.00
8/17/2018 0.00
8/18/2018 0.00
8/19/2018 0.00
8/20/2018 0.43
8/21/2018 0.11
8/22/2018 **
8/23/2018 **
8/24/2018 **
8/25/2018 **
8/26/2018 **
8/27/2018 0.49
8/28/2018 0.28
8/29/2018 0.00
8/30/2018 0.00
8/31/2018 0.00
9/1/2018 **
9/2/2018 **
9/3/2018 **
9/4/2018 0.35
9/5/2018 0.03
9/6/2018 0.00
9/7/2018 0.00
9/8/2018 0.00
9/9/2018 0.00
9/10/2018 0.00
9/11/2018 0.00
9/12/2018 0.00
9/13/2018 0.01
9/14/2018 0.00
9/15/2018 **
9/16/2018 **
9/17/2018 0.89
9/18/2018 0.01
9/19/2018 0.00
9/20/2018 0.00
9/21/2018 1.34
9/22/2018 **
9/23/2018 **
9/24/2018 0.54
9/25/2018 0.26
9/26/2018 0.16
9/27/2018 **
9/28/2018 **
9/29/2018 **
9/30/2018 **



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/3/2017 8:30 AM 0.85 M M M M
10/4/2017 8:30 AM 0.67 M M M M
10/5/2017 8:30 AM T M M M M
10/6/2017 8:30 AM 0.00 0.0 M M M
10/11/2017 8:30 AM 0.00 0.0 M M M
10/12/2017 8:30 AM 0.00 0.0 M M M
10/17/2017 8:30 AM 0.00 0.0 M M M
10/26/2017 8:30 AM T M M M M
10/27/2017 8:30 AM 0.91 0.8 M 0.8 M
11/3/2017 8:30 AM T M M M M
11/7/2017 8:30 AM T M M T M
11/14/2017 9:00 AM 0.00 0.0 M M M
11/15/2017 9:00 AM 0.00 0.0 M M M
11/16/2017 8:30 AM 0.28 0.5 M 0.5 M Rain/snow yesterday
11/21/2017 8:30 AM 0.00 0.0 M 2.8 M
11/22/2017 8:30 AM T T M 2.8 M
12/4/2017 8:30 AM 0.50 M M 0.4 M 4 degrees C, light rain at time of reading.
12/5/2017 8:30 AM 0.96 5.9 M 5.9 M
12/6/2017 8:30 AM 0.03 M M 4.7 M Strong winds during the day and overnight.
12/12/2017 8:30 AM 0.05 0.8 0.05 5.9 M
1/10/2018 8:30 AM 0.00 0.0 M 10.3 M
1/11/2018 8:30 AM 0.26 1.9 0.26 10.8 M
1/12/2018 8:30 AM 0.10 0.6 0.10 10.9 M Blowing snow yesterday and overnight.
1/31/2018 8:30 AM 0.16 2.8 0.16 14.8 M
4/12/2018 8:30 AM T 0.1 M 7.5 M
4/17/2018 8:30 AM 0.13 1.9 0.13 6.9 M
4/20/2018 8:30 AM 0.00 0.0 M 1.6 M
4/25/2018 9:00 AM 0.00 0.0 M M M
4/26/2018 9:00 AM 0.00 0.0 M M M
4/27/2018 9:00 AM 0.00 0.0 M M M
4/28/2018 9:00 AM 0.00 0.0 M M M
4/29/2018 9:00 AM 0.00 0.0 M M M
4/30/2018 9:00 AM 0.00 0.0 M M M
5/1/2018 8:30 AM 0.20 M M M M
5/2/2018 8:30 AM 0.00 0.0 M M M
5/3/2018 8:30 AM 0.00 0.0 M M M
5/8/2018 8:30 AM 0.00 0.0 M M M
5/9/2018 8:30 AM 0.14 M M M M
5/10/2018 8:30 AM 0.04 M M M M
5/11/2018 9:00 AM 0.00 0.0 M M M
5/12/2018 9:00 AM 0.00 0.0 M M M
5/13/2018 9:00 AM 0.00 0.0 M M M
5/14/2018 9:00 AM 0.00 0.0 M M M
5/15/2018 9:00 AM 0.00 0.0 M M M
5/16/2018 9:00 AM 0.00 0.0 M M M
5/17/2018 9:00 AM 0.00 0.0 M M M
5/18/2018 8:30 AM 0.03 M M M M
5/24/2018 9:00 AM 0.00 0.0 M M M
5/25/2018 8:30 AM 0.44 M M M M
5/29/2018 9:00 AM 0.00 0.0 M M M
5/30/2018 9:00 AM 0.00 0.0 M M M
5/31/2018 8:30 AM 0.71 M M M M
6/1/2018 8:30 AM 0.12 M M M M
6/5/2018 9:00 AM 0.00 0.0 M M M
6/6/2018 8:30 AM 0.00 0.0 M M M
6/7/2018 9:00 AM 0.00 0.0 M M M
6/8/2018 9:00 AM 0.00 0.0 M M M
6/9/2018 9:00 AM 0.00 0.0 M M M
6/10/2018 9:00 AM 0.00 0.0 M M M
6/11/2018 9:00 AM 0.00 0.0 M M M
6/12/2018 8:30 AM 0.00 0.0 M M M
6/13/2018 9:00 AM 0.00 0.0 M M M
6/14/2018 9:00 AM 0.00 0.0 M M M
6/15/2018 8:30 AM T M M M M light rain at time of reading.
6/26/2018 9:00 AM 0.00 0.0 M M M
6/27/2018 9:00 AM 0.00 0.0 M M M
6/28/2018 9:00 AM 0.00 0.0 M M M
6/29/2018 9:00 AM 0.00 0.0 M M M
7/4/2018 8:30 AM 0.03 M M M M
7/5/2018 8:30 AM T M M M M
7/10/2018 9:00 AM 0.00 0.0 M M M
7/11/2018 8:30 AM 0.00 0.0 M M M
7/12/2018 8:30 AM 0.66 M M M M thunderstorm over night.
7/13/2018 9:00 AM 0.00 0.0 M M M
7/14/2018 9:00 AM 0.00 0.0 M M M
7/15/2018 9:00 AM 0.00 0.0 M M M
7/16/2018 9:00 AM 0.00 0.0 M M M
7/17/2018 9:00 AM 0.00 0.0 M M M
7/18/2018 9:00 AM 0.00 0.0 M M M
7/19/2018 9:00 AM 0.00 0.0 M M M
7/20/2018 9:00 AM 0.00 0.0 M M M
7/21/2018 9:00 AM 0.00 0.0 M M M
7/22/2018 9:00 AM 0.00 0.0 M M M
7/23/2018 9:00 AM 0.00 0.0 M M M
7/24/2018 9:00 AM 0.00 0.0 M M M
7/25/2018 9:00 AM 0.00 0.0 M M M
7/26/2018 8:30 AM 0.01 M M M M light rain at time of reading
7/27/2018 8:30 AM 0.18 M M M M
7/31/2018 8:30 AM 0.02 M M M M
8/1/2018 8:30 AM 0.03 M M M M
8/8/2018 8:30 AM 0.00 0.0 M M M
8/9/2018 8:30 AM 0.17 M M M M
8/14/2018 9:00 AM 0.00 0.0 M M M
8/15/2018 9:00 AM 0.00 0.0 M M M
8/16/2018 9:00 AM 0.00 0.0 M M M
8/17/2018 9:00 AM 0.00 0.0 M M M
8/18/2018 9:00 AM 0.00 0.0 M M M
8/19/2018 9:00 AM 0.00 0.0 M M M
8/20/2018 8:30 AM 0.43 M M M M
8/21/2018 8:30 AM 0.11 M M M M
8/28/2018 8:30 AM 0.28 M M M M
8/29/2018 9:00 AM 0.00 0.0 M M M
8/30/2018 9:00 AM 0.00 0.0 M M M
8/31/2018 9:00 AM 0.00 0.0 M M M
9/5/2018 8:30 AM 0.03 M M M M
9/6/2018 9:00 AM 0.00 0.0 M M M
9/7/2018 8:30 AM 0.00 0.0 M M M
9/8/2018 9:00 AM 0.00 0.0 M M M
9/9/2018 9:00 AM 0.00 0.0 M M M
9/10/2018 9:00 AM 0.00 0.0 M M M
9/11/2018 9:00 AM 0.00 0.0 M M M
9/12/2018 9:00 AM 0.00 0.0 M M M
9/13/2018 8:30 AM 0.01 M M M M
9/14/2018 9:00 AM 0.00 0.0 M M M
9/18/2018 8:30 AM 0.01 M M M M
9/19/2018 8:30 AM 0.00 0.0 M M M
9/20/2018 9:00 AM 0.00 0.0 M M M
9/21/2018 8:30 AM 1.34 M M M M
9/25/2018 8:30 AM 0.26 M M M M
9/26/2018 8:30 AM 0.16 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
9/29/2017 10/02/2017 8:30 AM 4 0.06 M M
10/7/2017 10/10/2017 8:30 AM 4 T M M
10/13/2017 10/16/2017 8:30 AM 4 0.32 M M
10/18/2017 10/25/2017 8:30 AM 8 0.03 M M
10/28/2017 10/30/2017 8:30 AM 3 0.07 0.3 M
10/31/2017 11/02/2017 8:30 AM 3 0.29 0.6 M
11/4/2017 11/06/2017 8:30 AM 3 0.49 M M
11/8/2017 11/13/2017 8:30 AM 6 0.16 1.4 M
11/17/2017 11/20/2017 8:30 AM 4 0.36 2.8 M
11/23/2017 11/24/2017 8:30 AM 2 T 2.7 M
11/25/2017 11/27/2017 8:30 AM 3 T 2.2 M
11/28/2017 12/01/2017 8:30 AM 4 0.00 1.8 M
12/2/2017 12/03/2017 8:30 AM 2 0.00 0.9 M
12/7/2017 12/11/2017 8:30 AM 5 0.05 4.7 M
12/13/2017 12/18/2017 8:30 AM 6 0.01 5.9 M
12/19/2017 12/21/2017 8:30 AM 3 0.13 7.5 M
12/22/2017 1/05/2018 8:30 AM 15 0.11 8.7 M
1/6/2018 1/09/2018 8:30 AM 4 0.22 10.3 M
1/13/2018 1/15/2018 8:30 AM 3 0.20 13.8 M
1/16/2018 1/26/2018 8:30 AM 11 0.06 12.4 M
1/27/2018 1/30/2018 8:30 AM 4 0.00 12.0 M
2/1/2018 2/21/2018 8:30 AM 21 0.39 18.1 M
2/22/2018 2/26/2018 8:30 AM 5 0.92 21.3 M
2/27/2018 3/13/2018 8:30 AM 15 0.05 17.5 M
3/14/2018 3/20/2018 8:30 AM 7 0.00 17.3 M
3/21/2018 3/27/2018 8:30 AM 7 0.17 17.7 M
3/28/2018 4/05/2018 8:30 AM 9 0.00 12.4 M
4/6/2018 4/11/2018 8:30 AM 6 0.00 10.0 M
4/13/2018 4/16/2018 8:30 AM 4 0.24 6.4 M
4/18/2018 4/19/2018 8:30 AM 2 0.00 4.7 M
4/21/2018 4/24/2018 9:00 AM 4 0.00 0.0 M a few spots in the shade have some snow.
5/4/2018 5/07/2018 8:30 AM 4 0.04 M M
5/19/2018 5/23/2018 8:30 AM 5 0.04 M M
5/26/2018 5/28/2018 8:30 AM 3 0.09 M M
6/2/2018 6/04/2018 8:30 AM 3 0.17 M M
6/16/2018 6/18/2018 8:30 AM 3 1.12 M M rained all weekend
6/19/2018 6/25/2018 8:30 AM 7 0.10 M M
6/30/2018 7/03/2018 8:30 AM 4 1.93 M M
7/6/2018 7/09/2018 8:30 AM 4 0.28 M M
7/28/2018 7/30/2018 8:30 AM 3 0.35 M M
8/2/2018 8/07/2018 8:30 AM 6 0.36 M M
8/10/2018 8/13/2018 8:30 AM 4 0.04 M M
8/22/2018 8/27/2018 8:30 AM 6 0.49 M M
9/1/2018 9/04/2018 8:30 AM 4 0.35 M M
9/15/2018 9/17/2018 8:30 AM 3 0.89 M M
9/22/2018 9/24/2018 8:30 AM 3 0.54 M M
9/27/2018 10/01/2018 8:30 AM 5 0.41 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