Station Overview Station Location
Station Number MI-WS-10 Latitude 42.203803
Station Name Ann Arbor 5.1 SSW Longitude -83.754922
County Washtenaw Elevation (ft) 838



Month 30 Yr Avg by PRISM 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 09 2.81 4.07 31 3.24 25 0.83 6 2 18 0 0.0 0 0
Nov 09 2.91 0.69 29 0.61 26 0.08 3 1 9 1 0.0 0 0
Dec 09 2.60 2.88 31 2.88 31 0.00 0 0 15 4 3.6 9 14
Jan 10 2.21 1.18 31 1.18 28 0.00 3 0 9 3 4.6 7 27
Feb 10 2.08 1.81 28 1.20 9 0.61 19 1 5 0 11.2 3 9
March 10 2.40 1.12 27 0.52 23 0.60 4 1 4 0 0.0 0 3
April 10 3.11 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
May 10 3.45 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
June 10 3.59 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
July 10 3.38 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Aug 10 3.38 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 10 3.32 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 35.24" 11.75" 177 days 9.63" 142 2.12" 35 days 5 60 days 8 days 19.4" 19 days 53 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
10/1/2009 **
10/2/2009 **
10/3/2009 0.66
10/4/2009 **
10/5/2009 **
10/6/2009 0.17
10/7/2009 0.11
10/8/2009 0.00
10/9/2009 0.15
10/10/2009 0.75
10/11/2009 0.01
10/12/2009 0.00
10/13/2009 0.02
10/14/2009 0.00
10/15/2009 0.02
10/16/2009 0.04
10/17/2009 0.01
10/18/2009 0.00
10/19/2009 0.00
10/20/2009 0.00
10/21/2009 0.23
10/22/2009 0.03
10/23/2009 0.24
10/24/2009 0.90
10/25/2009 0.04
10/26/2009 0.01
10/27/2009 0.00
10/28/2009 0.16
10/29/2009 0.01
10/30/2009 0.08
10/31/2009 0.43
11/1/2009 0.00
11/2/2009 0.02
11/3/2009 0.02
11/4/2009 T
11/5/2009 0.03
11/6/2009 0.00
11/7/2009 0.00
11/8/2009 0.00
11/9/2009 0.00
11/10/2009 0.05
11/11/2009 0.00
11/12/2009 0.00
11/13/2009
11/14/2009 0.00
11/15/2009 0.00
11/16/2009 0.00
11/17/2009 0.00
11/18/2009 0.00
11/19/2009 **
11/20/2009 **
11/21/2009 0.08
11/22/2009 0.00
11/23/2009 0.00
11/24/2009 0.01
11/25/2009 0.09
11/26/2009 0.06
11/27/2009 0.12
11/28/2009 0.00
11/29/2009 0.00
11/30/2009 0.21
12/1/2009 0.01
12/2/2009 0.00
12/3/2009 0.71
12/4/2009 0.00
12/5/2009 0.00
12/6/2009 0.00
12/7/2009 0.00
12/8/2009 T
12/9/2009 0.64
12/10/2009 0.04
12/11/2009 0.00
12/12/2009 T
12/13/2009 0.26
12/14/2009 T
12/15/2009 0.07
12/16/2009 0.00
12/17/2009 0.00
12/18/2009 0.00
12/19/2009 0.09
12/20/2009 0.06
12/21/2009 0.03
12/22/2009 T
12/23/2009 0.00
12/24/2009 0.00
12/25/2009 0.15
12/26/2009 0.62
12/27/2009 0.03
12/28/2009 0.04
12/29/2009 0.05
12/30/2009 0.00
12/31/2009 0.08
Day of YearDaily PrcpMultiday Prcp
1/1/2010 T
1/2/2010 0.00
1/3/2010 0.00
1/4/2010 0.04
1/5/2010 0.02
1/6/2010 0.00
1/7/2010 0.00
1/8/2010 0.37
1/9/2010 0.00
1/10/2010 0.01
1/11/2010 0.00
1/12/2010 0.40
1/13/2010 0.00
1/14/2010 0.00
1/15/2010 T
1/16/2010 0.00
1/17/2010 0.00
1/18/2010 0.00
1/19/2010 0.00
1/20/2010 0.00
1/21/2010 0.00
1/22/2010 0.00
1/23/2010 0.00
1/24/2010 T
1/25/2010 0.29
1/26/2010 0.01
1/27/2010 0.01
1/28/2010 0.03
1/29/2010 **
1/30/2010 **
1/31/2010 **
2/1/2010 **
2/2/2010 **
2/3/2010 **
2/4/2010 **
2/5/2010 **
2/6/2010 **
2/7/2010 **
2/8/2010 **
2/9/2010 **
2/10/2010 **
2/11/2010 **
2/12/2010 **
2/13/2010 **
2/14/2010 **
2/15/2010 **
2/16/2010 **
2/17/2010 **
2/18/2010 **
2/19/2010 0.61
2/20/2010 0.00
2/21/2010 0.00
2/22/2010 0.70
2/23/2010 0.00
2/24/2010 0.01
2/25/2010 0.24
2/26/2010 0.00
2/27/2010 0.24
2/28/2010 0.01
3/1/2010 0.00
3/2/2010 0.00
3/3/2010 0.00
3/4/2010 0.00
3/5/2010 0.00
3/6/2010 0.00
3/7/2010 0.00
3/8/2010 0.00
3/9/2010 0.00
3/10/2010 **
3/11/2010 **
3/12/2010 **
3/13/2010 0.60
3/14/2010 0.26
3/15/2010 0.03
3/16/2010 0.00
3/17/2010 0.00
3/18/2010 0.00
3/19/2010 0.00
3/20/2010 0.00
3/21/2010 0.00
3/22/2010 0.00
3/23/2010 0.08
3/24/2010 0.00
3/25/2010 0.00
3/26/2010 0.15
3/27/2010 0.00
3/28/2010
3/29/2010
3/30/2010
3/31/2010
Day of YearDaily PrcpMultiday Prcp
4/1/2010
4/2/2010
4/3/2010
4/4/2010
4/5/2010
4/6/2010
4/7/2010
4/8/2010
4/9/2010
4/10/2010
4/11/2010
4/12/2010
4/13/2010
4/14/2010
4/15/2010
4/16/2010
4/17/2010
4/18/2010
4/19/2010
4/20/2010
4/21/2010
4/22/2010
4/23/2010
4/24/2010
4/25/2010
4/26/2010
4/27/2010
4/28/2010
4/29/2010
4/30/2010
5/1/2010
5/2/2010
5/3/2010
5/4/2010
5/5/2010
5/6/2010
5/7/2010
5/8/2010
5/9/2010
5/10/2010
5/11/2010
5/12/2010
5/13/2010
5/14/2010
5/15/2010
5/16/2010
5/17/2010
5/18/2010
5/19/2010
5/20/2010
5/21/2010
5/22/2010
5/23/2010
5/24/2010
5/25/2010
5/26/2010
5/27/2010
5/28/2010
5/29/2010
5/30/2010
5/31/2010
6/1/2010
6/2/2010
6/3/2010
6/4/2010
6/5/2010
6/6/2010
6/7/2010
6/8/2010
6/9/2010
6/10/2010
6/11/2010
6/12/2010
6/13/2010
6/14/2010
6/15/2010
6/16/2010
6/17/2010
6/18/2010
6/19/2010
6/20/2010
6/21/2010
6/22/2010
6/23/2010
6/24/2010
6/25/2010
6/26/2010
6/27/2010
6/28/2010
6/29/2010
6/30/2010
Day of YearDaily PrcpMultiday Prcp
7/1/2010
7/2/2010
7/3/2010
7/4/2010
7/5/2010
7/6/2010
7/7/2010
7/8/2010
7/9/2010
7/10/2010
7/11/2010
7/12/2010
7/13/2010
7/14/2010
7/15/2010
7/16/2010
7/17/2010
7/18/2010
7/19/2010
7/20/2010
7/21/2010
7/22/2010
7/23/2010
7/24/2010
7/25/2010
7/26/2010
7/27/2010
7/28/2010
7/29/2010
7/30/2010
7/31/2010
8/1/2010
8/2/2010
8/3/2010
8/4/2010
8/5/2010
8/6/2010
8/7/2010
8/8/2010
8/9/2010
8/10/2010
8/11/2010
8/12/2010
8/13/2010
8/14/2010
8/15/2010
8/16/2010
8/17/2010
8/18/2010
8/19/2010
8/20/2010
8/21/2010
8/22/2010
8/23/2010
8/24/2010
8/25/2010
8/26/2010
8/27/2010
8/28/2010
8/29/2010
8/30/2010
8/31/2010
9/1/2010
9/2/2010
9/3/2010
9/4/2010
9/5/2010
9/6/2010
9/7/2010
9/8/2010
9/9/2010
9/10/2010
9/11/2010
9/12/2010
9/13/2010
9/14/2010
9/15/2010
9/16/2010
9/17/2010
9/18/2010
9/19/2010
9/20/2010
9/21/2010
9/22/2010
9/23/2010
9/24/2010
9/25/2010
9/26/2010
9/27/2010
9/28/2010
9/29/2010
9/30/2010



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/7/2009 6:00 AM 0.11 M M M M
10/8/2009 6:00 AM 0.00 0.0 M M M
10/9/2009 6:00 AM 0.15 M M M M
10/10/2009 6:00 AM 0.75 M M M M
10/11/2009 6:00 AM 0.01 M M M M
10/12/2009 6:00 AM 0.00 0.0 M M M
10/13/2009 6:00 AM 0.02 M M M M
10/14/2009 6:00 AM 0.00 0.0 M M M
10/15/2009 6:00 AM 0.02 M M M M
10/16/2009 6:00 AM 0.04 0.0 M M M
10/17/2009 6:00 AM 0.01 M M M M
10/18/2009 6:00 AM 0.00 0.0 M M M
10/19/2009 6:00 AM 0.00 0.0 M M M
10/20/2009 6:00 AM 0.00 0.0 M M M
10/21/2009 6:00 AM 0.23 M M M M
10/22/2009 6:00 AM 0.03 M M M M
10/23/2009 6:00 AM 0.24 M M M M
10/24/2009 6:00 AM 0.90 M M M M
10/25/2009 6:00 AM 0.04 M M M M
10/26/2009 6:00 AM 0.01 0.0 M M M
10/27/2009 6:00 AM 0.00 0.0 M M M
10/28/2009 6:00 AM 0.16 M M M M
10/29/2009 6:00 AM 0.01 M M M M Dense Fog
10/30/2009 8:15 AM 0.08 M M M M
10/31/2009 6:00 AM 0.43 M M M M
11/1/2009 6:00 AM 0.00 0.0 M M M
11/2/2009 6:00 AM 0.02 M M M M
11/3/2009 6:00 AM 0.02 M M M M
11/4/2009 6:00 AM T M M M M
11/5/2009 6:00 AM 0.03 M M M M
11/6/2009 6:00 AM 0.00 0.0 M M M frost
11/7/2009 6:00 AM 0.00 0.0 M M M
11/8/2009 6:00 AM 0.00 0.0 M M M
11/9/2009 6:00 AM 0.00 0.0 M M M
11/10/2009 6:00 AM 0.05 M M M M
11/11/2009 6:00 AM 0.00 0.0 M M M
11/12/2009 6:00 AM 0.00 0.0 M M M
11/14/2009 6:00 AM 0.00 0.0 M M M heavy dew
11/15/2009 6:00 AM 0.00 0.0 M M M
11/16/2009 6:00 AM 0.00 0.0 M M M
11/17/2009 6:00 AM 0.00 0.0 M M M
11/18/2009 6:00 AM 0.00 0.0 M M M
11/22/2009 6:00 AM 0.00 0.0 M M M heavy fog
11/23/2009 6:00 AM 0.00 0.0 M M M
11/24/2009 6:00 AM 0.01 M M M M
11/25/2009 3:48 PM 0.09 M M M M
11/26/2009 6:00 AM 0.06 M M M M
11/27/2009 6:32 PM 0.12 M M M M
11/28/2009 6:00 AM 0.00 0.0 M M M
11/29/2009 6:00 AM 0.00 0.0 M M M heavy fog
11/30/2009 6:00 AM 0.21 M M M M
12/1/2009 6:00 AM 0.01 M M M M
12/2/2009 6:00 AM 0.00 0.0 M M M trace
12/3/2009 6:00 AM 0.71 M M M M
12/4/2009 6:00 AM 0.00 0.0 M M M
12/5/2009 6:00 AM 0.00 0.0 M M M
12/6/2009 6:00 AM 0.00 0.0 M M M
12/7/2009 6:00 AM 0.00 0.0 M M M
12/8/2009 6:00 AM T M M M M
12/9/2009 6:00 AM 0.64 0.5 M 0.5 M
12/10/2009 6:00 PM 0.04 0.5 M 0.5 M lots of wind and very cold makes measurement of ground snow difficult.
12/11/2009 6:00 AM 0.00 0.0 M M M
12/12/2009 6:00 AM T M M M M
12/13/2009 4:00 PM 0.26 M M M M
12/14/2009 6:00 AM T M M M M
12/15/2009 6:00 AM 0.07 M M M M
12/16/2009 6:00 AM 0.00 0.0 M M M
12/17/2009 6:00 AM 0.00 0.0 M M M
12/18/2009 6:00 AM 0.00 0.0 M M M
12/19/2009 6:00 AM 0.09 0.7 M 0.7 M
12/20/2009 6:00 AM 0.06 0.2 M 0.9 M
12/21/2009 6:00 AM 0.03 0.1 M 0.6 M
12/22/2009 6:00 AM T M M 0.6 M
12/23/2009 6:00 AM 0.00 0.0 M 0.4 M
12/24/2009 6:00 AM 0.00 0.0 M 0.4 M
12/25/2009 7:00 AM 0.15 M M 0.2 M
12/26/2009 6:00 AM 0.62 M M T M
12/27/2009 6:00 AM 0.03 0.1 M 0.1 M
12/28/2009 9:00 AM 0.04 0.4 M 0.5 M
12/29/2009 6:00 AM 0.05 0.4 M 0.9 M
12/30/2009 6:00 AM 0.00 0.0 M 0.8 M
12/31/2009 4:00 PM 0.08 0.7 M 1.6 M
1/1/2010 6:00 AM T T M 1.1 M
1/2/2010 6:00 AM 0.00 0.0 M 1.0 M
1/3/2010 6:00 AM 0.00 0.0 M 1.0 M
1/4/2010 6:00 PM 0.04 0.6 M 1.6 M
1/5/2010 6:00 AM 0.02 0.1 M 1.7 M
1/6/2010 6:00 AM 0.00 0.0 M 1.7 M
1/7/2010 6:00 AM 0.00 0.0 M 1.7 M
1/8/2010 6:00 AM 0.37 2.9 M 4.6 M
1/9/2010 6:00 AM 0.00 0.0 M 4.6 M
1/10/2010 6:00 AM 0.01 T M 4.9 M
1/11/2010 6:00 AM 0.00 0.0 M 4.9 M
1/12/2010 6:00 AM 0.40 0.3 M 3.7 M
1/13/2010 6:00 AM 0.00 0.0 M 3.7 M
1/14/2010 6:00 AM 0.00 0.0 M 3.7 M
1/15/2010 8:30 AM T 0.0 M 1.9 M
1/16/2010 6:00 AM 0.00 0.0 M 1.5 M
1/17/2010 6:00 AM 0.00 0.0 M 1.5 M
1/18/2010 6:00 AM 0.00 0.0 M 1.5 M
1/19/2010 6:00 AM 0.00 0.0 M 1.5 M
1/20/2010 6:00 AM 0.00 0.0 M 1.5 M
1/21/2010 6:00 AM 0.00 0.0 M 1.5 M
1/22/2010 6:00 AM 0.00 0.0 M 1.4 M
1/23/2010 6:00 AM 0.00 0.0 M 1.0 M
1/24/2010 6:00 AM T 0.0 M 0.5 M Just beginning to rain.
1/25/2010 6:00 AM 0.29 0.0 M 0.0 M
1/26/2010 6:00 AM 0.01 0.1 M 0.1 M
1/27/2010 6:00 AM 0.01 0.1 M 0.1 M
1/28/2010 6:00 AM 0.03 0.5 M 0.5 M
2/20/2010 6:00 AM 0.00 0.0 M 1.5 M
2/21/2010 6:00 AM 0.00 0.0 M 1.1 M
2/22/2010 4:00 PM 0.70 9.0 M 9.0 M
2/23/2010 6:00 AM 0.00 0.0 M 8.9 M
2/24/2010 6:00 AM 0.01 T M 6.9 M
2/25/2010 4:00 PM 0.24 1.9 M 8.5 M
2/26/2010 6:00 AM 0.00 0.0 M 8.4 M
2/27/2010 6:00 AM 0.24 0.3 M 8.7 M
2/28/2010 4:00 PM 0.01 T M 5.7 M
3/1/2010 4:00 PM 0.00 0.0 M 3.3 M
3/2/2010 6:00 AM 0.00 0.0 M 3.1 M
3/3/2010 6:00 AM 0.00 0.0 M 2.5 M
3/4/2010 6:00 AM 0.00 0.0 M M M
3/5/2010 6:00 AM 0.00 0.0 M M M
3/6/2010 6:00 AM 0.00 0.0 M M M
3/7/2010 6:00 AM 0.00 0.0 M M M
3/8/2010 6:00 AM 0.00 0.0 M M M
3/9/2010 6:00 AM 0.00 0.0 M M M
3/14/2010 9:00 AM 0.26 0.0 M 0.0 M
3/15/2010 6:00 AM 0.03 M M M M
3/16/2010 6:00 AM 0.00 0.0 M M M
3/17/2010 6:00 AM 0.00 0.0 M 0.0 M
3/18/2010 6:00 AM 0.00 0.0 M 0.0 M
3/19/2010 6:00 AM 0.00 0.0 M 0.0 M
3/20/2010 6:00 AM 0.00 0.0 M 0.0 M
3/21/2010 6:00 AM 0.00 0.0 M 0.0 M
3/22/2010 6:00 AM 0.00 0.0 M 0.0 M
3/23/2010 6:00 AM 0.08 0.0 M 0.0 M
3/24/2010 6:00 AM 0.00 0.0 M 0.0 M
3/25/2010 6:00 AM 0.00 0.0 M 0.0 M
3/26/2010 6:00 AM 0.15 0.0 M 0.0 M
3/27/2010 6:00 AM 0.00 0.0 M 0.0 M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/1/2009 10/03/2009 8:45 AM 3 0.66 M M
10/4/2009 10/06/2009 4:15 PM 3 0.17 M M
11/19/2009 11/21/2009 7:50 AM 3 0.08 M M
1/29/2010 2/19/2010 8:00 AM 22 0.61 1.5 M missed a lot of snowfall. Much melt off as well.
3/10/2010 3/13/2010 9:30 AM 4 0.60 0.0 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