Station Overview Station Location
Station Number MN-SL-6 Latitude 46.93
Station Name Hermantown 9.3 NNE Longitude -92.143917
County St. Louis Elevation (ft) 1372



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 10 2.85 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Nov 10 1.93 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Dec 10 1.19 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 11 1.00 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Feb 11 0.80 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
March 11 1.42 0.29 11 0.29 11 0.00 0 0 3 1 2.0 1 1
April 11 2.38 2.70 30 2.70 30 0.00 0 0 16 1 10.6 7 2
May 11 3.00 3.32 30 2.73 19 0.59 11 1 8 1 0.0 0 0
June 11 4.22 5.04 29 5.04 29 0.00 0 0 12 0 0.0 0 0
July 11 3.97 3.15 31 3.15 31 0.00 0 0 11 1 0.0 0 0
Aug 11 3.55 8.56 31 8.56 31 0.00 0 0 13 3 0.0 0 0
Sept 11 3.91 1.57 29 1.57 29 0.00 0 0 8 0 0.0 0 0
Water Year Totals: 30.22" 24.63" 191 days 24.04" 180 0.59" 11 days 1 71 days 7 days 12.6" 8 days 3 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
10/1/2010
10/2/2010
10/3/2010
10/4/2010
10/5/2010
10/6/2010
10/7/2010
10/8/2010
10/9/2010
10/10/2010
10/11/2010
10/12/2010
10/13/2010
10/14/2010
10/15/2010
10/16/2010
10/17/2010
10/18/2010
10/19/2010
10/20/2010
10/21/2010
10/22/2010
10/23/2010
10/24/2010
10/25/2010
10/26/2010
10/27/2010
10/28/2010
10/29/2010
10/30/2010
10/31/2010
11/1/2010
11/2/2010
11/3/2010
11/4/2010
11/5/2010
11/6/2010
11/7/2010
11/8/2010
11/9/2010
11/10/2010
11/11/2010
11/12/2010
11/13/2010
11/14/2010
11/15/2010
11/16/2010
11/17/2010
11/18/2010
11/19/2010
11/20/2010
11/21/2010
11/22/2010
11/23/2010
11/24/2010
11/25/2010
11/26/2010
11/27/2010
11/28/2010
11/29/2010
11/30/2010
12/1/2010
12/2/2010
12/3/2010
12/4/2010
12/5/2010
12/6/2010
12/7/2010
12/8/2010
12/9/2010
12/10/2010
12/11/2010
12/12/2010
12/13/2010
12/14/2010
12/15/2010
12/16/2010
12/17/2010
12/18/2010
12/19/2010
12/20/2010
12/21/2010
12/22/2010
12/23/2010
12/24/2010
12/25/2010
12/26/2010
12/27/2010
12/28/2010
12/29/2010
12/30/2010
12/31/2010
Day of YearDaily PrcpMultiday Prcp
1/1/2011
1/2/2011
1/3/2011
1/4/2011
1/5/2011
1/6/2011
1/7/2011
1/8/2011
1/9/2011
1/10/2011
1/11/2011
1/12/2011
1/13/2011
1/14/2011
1/15/2011
1/16/2011
1/17/2011
1/18/2011
1/19/2011
1/20/2011
1/21/2011
1/22/2011
1/23/2011
1/24/2011
1/25/2011
1/26/2011
1/27/2011
1/28/2011
1/29/2011
1/30/2011
1/31/2011
2/1/2011
2/2/2011
2/3/2011
2/4/2011
2/5/2011
2/6/2011
2/7/2011
2/8/2011
2/9/2011
2/10/2011
2/11/2011
2/12/2011
2/13/2011
2/14/2011
2/15/2011
2/16/2011
2/17/2011
2/18/2011
2/19/2011
2/20/2011
2/21/2011
2/22/2011
2/23/2011
2/24/2011
2/25/2011
2/26/2011
2/27/2011
2/28/2011
3/1/2011
3/2/2011
3/3/2011
3/4/2011
3/5/2011
3/6/2011
3/7/2011
3/8/2011
3/9/2011
3/10/2011
3/11/2011
3/12/2011
3/13/2011
3/14/2011
3/15/2011
3/16/2011
3/17/2011
3/18/2011
3/19/2011 0.00
3/20/2011 0.25
3/21/2011
3/22/2011 0.00
3/23/2011
3/24/2011 0.03
3/25/2011 0.00
3/26/2011 T
3/27/2011 0.01
3/28/2011 0.00
3/29/2011 0.00
3/30/2011 0.00
3/31/2011 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2011 0.13
4/2/2011 0.04
4/3/2011 0.52
4/4/2011 0.12
4/5/2011 0.00
4/6/2011 0.03
4/7/2011 0.00
4/8/2011 0.00
4/9/2011 0.00
4/10/2011 0.31
4/11/2011 0.10
4/12/2011 0.00
4/13/2011 0.03
4/14/2011 0.00
4/15/2011 0.00
4/16/2011 0.18
4/17/2011 0.04
4/18/2011 T
4/19/2011 0.00
4/20/2011 0.00
4/21/2011 0.00
4/22/2011 0.03
4/23/2011 0.47
4/24/2011 0.00
4/25/2011 0.00
4/26/2011 0.00
4/27/2011 0.48
4/28/2011 0.11
4/29/2011 0.05
4/30/2011 0.06
5/1/2011 0.97
5/2/2011 0.00
5/3/2011 0.02
5/4/2011
5/5/2011 **
5/6/2011 **
5/7/2011 **
5/8/2011 **
5/9/2011 **
5/10/2011 **
5/11/2011 **
5/12/2011 **
5/13/2011 **
5/14/2011 **
5/15/2011 0.59
5/16/2011 0.00
5/17/2011 0.00
5/18/2011 0.00
5/19/2011 0.00
5/20/2011 0.00
5/21/2011 T
5/22/2011 0.44
5/23/2011 0.36
5/24/2011 0.00
5/25/2011 0.00
5/26/2011 0.00
5/27/2011 0.00
5/28/2011 0.22
5/29/2011 0.23
5/30/2011 0.30
5/31/2011 0.19
6/1/2011 0.09
6/2/2011 0.00
6/3/2011 0.00
6/4/2011 0.02
6/5/2011 0.00
6/6/2011 0.00
6/7/2011 0.70
6/8/2011 0.00
6/9/2011 0.00
6/10/2011 0.00
6/11/2011 0.00
6/12/2011 0.00
6/13/2011 0.00
6/14/2011 0.00
6/15/2011 0.05
6/16/2011 0.35
6/17/2011
6/18/2011 0.34
6/19/2011 0.21
6/20/2011 0.02
6/21/2011 0.00
6/22/2011 2.26
6/23/2011 0.41
6/24/2011 0.09
6/25/2011 0.00
6/26/2011 0.00
6/27/2011 0.00
6/28/2011 0.50
6/29/2011 0.00
6/30/2011 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2011 0.00
7/2/2011 0.60
7/3/2011 0.00
7/4/2011 0.00
7/5/2011 0.13
7/6/2011 0.00
7/7/2011 0.05
7/8/2011 0.00
7/9/2011 0.19
7/10/2011 0.10
7/11/2011 0.00
7/12/2011 0.00
7/13/2011 0.00
7/14/2011 0.03
7/15/2011 0.06
7/16/2011 0.00
7/17/2011 0.00
7/18/2011 T
7/19/2011 0.00
7/20/2011 0.82
7/21/2011 0.00
7/22/2011 0.00
7/23/2011 0.00
7/24/2011 0.55
7/25/2011 0.00
7/26/2011 0.00
7/27/2011 0.55
7/28/2011 0.07
7/29/2011 0.00
7/30/2011 0.00
7/31/2011 0.00
8/1/2011 0.00
8/2/2011 4.80
8/3/2011 0.06
8/4/2011 0.00
8/5/2011 T
8/6/2011 0.00
8/7/2011 0.21
8/8/2011 0.00
8/9/2011 1.19
8/10/2011 0.06
8/11/2011 0.00
8/12/2011 0.00
8/13/2011 0.97
8/14/2011 0.03
8/15/2011 0.00
8/16/2011 0.00
8/17/2011 0.32
8/18/2011 0.00
8/19/2011 0.28
8/20/2011 0.00
8/21/2011 T
8/22/2011 0.13
8/23/2011 0.00
8/24/2011 0.13
8/25/2011 0.00
8/26/2011 0.10
8/27/2011 0.00
8/28/2011 0.00
8/29/2011 T
8/30/2011 0.00
8/31/2011 0.28
9/1/2011 0.04
9/2/2011 0.08
9/3/2011 0.00
9/4/2011 0.01
9/5/2011 0.00
9/6/2011
9/7/2011 0.00
9/8/2011 0.00
9/9/2011 0.00
9/10/2011 0.00
9/11/2011 0.00
9/12/2011 0.00
9/13/2011 0.20
9/14/2011 0.05
9/15/2011 0.29
9/16/2011 0.00
9/17/2011 0.00
9/18/2011 0.00
9/19/2011 0.00
9/20/2011 0.00
9/21/2011 0.53
9/22/2011 0.00
9/23/2011 0.00
9/24/2011 0.00
9/25/2011 0.00
9/26/2011 0.00
9/27/2011 0.00
9/28/2011 0.00
9/29/2011 0.00
9/30/2011 0.37



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
3/19/2011 8:00 AM 0.00 0.0 M M M
3/20/2011 8:00 AM 0.25 2.0 0.24 10.0 M -zl. sNOW HAS VERY HIGH MOISTURE CONTENT
3/22/2011 8:00 AM 0.00 0.0 M M M
3/24/2011 8:00 AM 0.03 0.0 M M M Advection fog developed by 8:00 PM. Vis. 8:00 AM <1/2 mi.
3/25/2011 8:00 AM 0.00 0.0 M M M
3/26/2011 8:00 AM T T M M M occ. -SNSH. Lake effect.
3/27/2011 8:00 AM 0.01 T M M M OCC-SNSH, Lake effect.
3/28/2011 8:00 AM 0.00 0.0 M M M
3/29/2011 8:00 AM 0.00 0.0 M M M
3/30/2011 8:00 AM 0.00 0.0 M M M
3/31/2011 8:00 AM 0.00 0.0 M M M
4/1/2011 8:00 AM 0.13 1.1 M M M -sn. Tenp 1C
4/2/2011 8:00 AM 0.04 M M M M
4/3/2011 8:00 AM 0.52 3.1 M M M S-R temp 1.0. Very high moisture content
4/4/2011 8:00 AM 0.12 1.1 M M M -sn
4/5/2011 8:00 AM 0.00 0.0 M M M
4/6/2011 8:00 AM 0.03 M M M M
4/7/2011 8:00 AM 0.00 0.0 M M M
4/8/2011 8:00 AM 0.00 0.0 M M M
4/9/2011 8:00 AM 0.00 0.0 M M M
4/10/2011 8:00 AM 0.31 M M M M fg 11/2sm
4/11/2011 8:00 AM 0.10 M M M M
4/12/2011 8:00 AM 0.00 0.0 M M M
4/13/2011 8:00 AM 0.03 M M M M
4/14/2011 8:00 AM 0.00 0.0 M M M
4/15/2011 8:00 AM 0.00 0.0 M M M
4/16/2011 8:00 AM 0.18 1.7 M M M -SN -IP BR
4/17/2011 8:00 AM 0.04 0.9 M M M
4/18/2011 8:00 AM T T M M M
4/19/2011 8:00 AM 0.00 0.0 M M M
4/20/2011 8:00 AM 0.00 0.0 M M M
4/21/2011 8:00 AM 0.00 0.0 M M M
4/22/2011 8:00 AM 0.03 M M M M
4/23/2011 8:00 AM 0.47 0.8 0.16 0.5 M
4/24/2011 8:00 AM 0.00 0.0 M M M
4/25/2011 8:00 AM 0.00 0.0 M M M
4/26/2011 8:00 AM 0.00 0.0 M M M
4/27/2011 8:00 AM 0.48 1.9 0.20 1.9 M began as rain-snow mix, changed to all snow late pm. Melted immediately on road surfaces.
4/28/2011 8:00 AM 0.11 M M M M Occ mixed -Ra -Sn sh
4/29/2011 8:00 AM 0.05 M M M M -SN SH melted on contact
4/30/2011 8:00 AM 0.06 M M M M
5/1/2011 8:00 AM 0.97 M M M M -R, R. occ. R+
5/2/2011 8:00 AM 0.00 0.0 M M M
5/3/2011 8:00 AM 0.02 M M M M -Sn Sh melted on contact
5/16/2011 8:00 AM 0.00 0.0 M M M
5/17/2011 8:00 AM 0.00 0.0 M M M
5/18/2011 8:00 AM 0.00 0.0 M M M
5/19/2011 8:00 AM 0.00 0.0 M M M
5/20/2011 8:00 AM 0.00 0.0 M M M
5/21/2011 8:00 AM T M M M M
5/22/2011 8:00 AM 0.44 M M M M
5/23/2011 8:00 AM 0.36 M M M M
5/24/2011 8:00 AM 0.00 0.0 M M M
5/25/2011 8:00 AM 0.00 0.0 M M M
5/26/2011 8:00 AM 0.00 0.0 M M M
5/27/2011 8:00 AM 0.00 0.0 M M M
5/28/2011 8:00 AM 0.22 M M M M
5/29/2011 8:00 AM 0.23 M M M M Thunderstorm
5/30/2011 8:00 AM 0.30 M M M M Thunderstorms. R countinues past 0800
5/31/2011 8:00 AM 0.19 M M M M
6/1/2011 8:00 AM 0.09 M M M M -RW 9-10 AM, then convective -Rw/Rw after 4PM. After 1PM, wind 230vrbl29015G40, Pk gusts 5-6PM. SLP 29.90.
6/2/2011 8:00 AM 0.00 0.0 M M M
6/3/2011 8:00 AM 0.00 0.0 M M M
6/4/2011 8:00 AM 0.02 M M M M
6/5/2011 8:00 AM 0.00 0.0 M M M
6/6/2011 8:00 AM 0.00 0.0 M M M
6/7/2011 8:00 AM 0.70 M M M M T-storm, R/R+. Ltng C>C. No. sig wind.f
6/8/2011 8:00 AM 0.00 0.0 M M M
6/9/2011 8:00 AM 0.00 0.0 M M M
6/10/2011 8:00 AM 0.00 0.0 M M M
6/11/2011 8:00 AM 0.00 0.0 M M M
6/12/2011 8:00 AM 0.00 0.0 M M M
6/13/2011 8:00 AM 0.00 0.0 M M M
6/14/2011 8:00 AM 0.00 0.0 M M M
6/15/2011 8:00 AM 0.05 M M M M
6/16/2011 8:00 AM 0.35 M M M M
6/18/2011 8:00 AM 0.34 M M M M
6/19/2011 8:00 AM 0.21 M M M M
6/20/2011 8:00 AM 0.02 M M M M
6/21/2011 8:00 AM 0.00 0.0 M M M
6/22/2011 8:00 AM 2.26 M M M M Low from Cent. Plns. Winds 20G40 thru period. SLP 29.66. Precip. event of this mag. seems to occur 1-2 times/year. My records suggest most freq. late June-mid Jul. During obs. period: -R/R/ocly R+. Occ. distant Ltng. So.
6/23/2011 8:00 AM 0.41 M M M M continuous -R all day
6/24/2011 8:00 AM 0.09 M M M M
6/25/2011 8:00 AM 0.00 0.0 M M M
6/26/2011 8:00 AM 0.00 0.0 M M M
6/27/2011 8:00 AM 0.00 0.0 M M M
6/28/2011 8:00 AM 0.50 M M M M Elec. gage recorded 1.77 in/hr. ca. 11:10
6/29/2011 8:00 AM 0.00 0.0 M M M
6/30/2011 8:00 AM 0.00 0.0 M M M
7/1/2011 8:00 AM 0.00 0.0 M M M
7/2/2011 8:00 AM 0.60 M M M M thunderstorm R/R+
7/3/2011 8:00 AM 0.00 0.0 M M M
7/4/2011 8:00 AM 0.00 0.0 M M M
7/5/2011 8:00 AM 0.13 M M M M
7/6/2011 8:00 AM 0.00 0.0 M M M
7/7/2011 8:00 AM 0.05 M M M M
7/8/2011 8:00 AM 0.00 0.0 M M M
7/9/2011 8:00 AM 0.19 M M M M -RW continuing
7/10/2011 8:00 AM 0.10 M M M M
7/11/2011 8:00 AM 0.00 0.0 M M M
7/12/2011 8:00 AM 0.00 0.0 M M M
7/13/2011 8:00 AM 0.00 0.0 M M M
7/14/2011 8:00 AM 0.03 M M M M
7/15/2011 8:00 AM 0.06 M M M M
7/16/2011 8:00 AM 0.00 0.0 M M M
7/17/2011 8:00 AM 0.00 0.0 M M M
7/18/2011 8:00 AM T M M M M
7/19/2011 8:00 AM 0.00 0.0 M M M
7/20/2011 8:00 AM 0.82 M M M M Thunderstorm, slow-moving line, Freq. cld>cld. ltng.
7/21/2011 8:00 AM 0.00 0.0 M M M
7/22/2011 8:00 AM 0.00 0.0 M M M
7/23/2011 8:00 AM 0.00 0.0 M M M
7/24/2011 8:00 AM 0.55 M M M M T-storm. Amts. vary widely locally.
7/25/2011 8:00 AM 0.00 0.0 M M M
7/26/2011 8:00 AM 0.00 0.0 M M M
7/27/2011 8:00 AM 0.55 M M M M T storm
7/28/2011 8:00 AM 0.07 M M M M
7/29/2011 8:00 AM 0.00 0.0 M M M
7/30/2011 8:00 AM 0.00 0.0 M M M
7/31/2011 8:00 AM 0.00 0.0 M M M
8/1/2011 8:00 AM 0.00 0.0 M M M
8/2/2011 8:00 AM 4.80 M M M M NOT A TYPO! MCS. R_, CONTINUAL LIGHNING
8/3/2011 8:00 AM 0.06 M M M M
8/4/2011 8:00 AM 0.00 0.0 M M M
8/5/2011 8:00 AM T M M M M
8/6/2011 8:00 AM 0.00 0.0 M M M
8/7/2011 8:00 AM 0.21 M M M M -r, some thunder
8/8/2011 8:00 AM 0.00 0.0 M M M
8/9/2011 8:00 AM 1.19 M M M M Line of intense ts dvlpd over N-Cent MN, moved E. 30K. My auomated reporting system (60 ft. from gauge) reported pk wind 28029. Rainfall rate3.31 in/hr. Vis. .1 mi., r++. Power outage.
8/10/2011 8:00 AM 0.06 M M M M
8/11/2011 8:00 AM 0.00 0.0 M M M
8/12/2011 8:00 AM 0.00 0.0 M M M
8/13/2011 6:40 AM 0.97 M M M M ts/-r/r. intermittant
8/14/2011 8:00 AM 0.03 M M M M
8/15/2011 8:00 AM 0.00 0.0 M M M
8/16/2011 8:00 AM 0.00 0.0 M M M
8/17/2011 8:00 AM 0.32 M M M M ts.max rate .71 in/hr
8/18/2011 8:00 AM 0.00 0.0 M M M
8/19/2011 8:00 AM 0.28 M M M M ts.
8/20/2011 8:00 AM 0.00 0.0 M M M
8/21/2011 8:00 AM T M M M M
8/22/2011 8:00 AM 0.13 M M M M
8/23/2011 8:00 AM 0.00 0.0 M M M
8/24/2011 8:00 AM 0.13 M M M M ts
8/25/2011 8:00 AM 0.00 0.0 M M M
8/26/2011 8:00 AM 0.10 M M M M
8/27/2011 8:00 AM 0.00 0.0 M M M
8/28/2011 8:00 AM 0.00 0.0 M M M
8/29/2011 8:00 AM T M M M M
8/30/2011 8:00 AM 0.00 0.0 M M M
8/31/2011 8:00 AM 0.28 M M M M
9/1/2011 8:00 AM 0.04 M M M M lo ovcst,br -L all day
9/2/2011 8:00 AM 0.08 M M M M
9/3/2011 8:00 AM 0.00 0.0 M M M
9/4/2011 8:00 AM 0.01 M M M M
9/5/2011 8:00 AM 0.00 0.0 M M M
9/7/2011 8:00 AM 0.00 0.0 M M M
9/8/2011 8:00 AM 0.00 0.0 M M M
9/9/2011 8:00 AM 0.00 0.0 M M M
9/10/2011 8:00 AM 0.00 0.0 M M M
9/11/2011 8:00 AM 0.00 0.0 M M M
9/12/2011 8:00 AM 0.00 0.0 M M M
9/13/2011 8:00 AM 0.20 M M M M 3/4" hail for 2 min.about 4:30.
9/14/2011 8:00 AM 0.05 M M M M
9/15/2011 8:00 AM 0.29 M M M M small hail 5;30-5:45 pm
9/16/2011 8:00 AM 0.00 0.0 M M M
9/17/2011 8:00 AM 0.00 0.0 M M M
9/18/2011 8:00 AM 0.00 0.0 M M M
9/19/2011 8:00 AM 0.00 0.0 M M M
9/20/2011 8:00 AM 0.00 0.0 M M M
9/21/2011 8:00 AM 0.53 M M M M
9/22/2011 8:00 AM 0.00 0.0 M M M
9/23/2011 8:00 AM 0.00 0.0 M M M
9/24/2011 8:00 AM 0.00 0.0 M M M
9/25/2011 8:00 AM 0.00 0.0 M M M
9/26/2011 8:00 AM 0.00 0.0 M M M
9/27/2011 8:00 AM 0.00 0.0 M M M
9/28/2011 8:00 AM 0.00 0.0 M M M
9/29/2011 8:00 AM 0.00 0.0 M M M
9/30/2011 8:00 AM 0.37 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
5/5/2011 5/15/2011 12:00 AM 11 0.59 0.0 M On vacation 5/5-5/15



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