Station Overview Station Location
Station Number NY-ER-83 Latitude 42.9698368
Station Name Williamsville 1 NW Longitude -78.76630158
County Erie Elevation (ft) 318



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 3.45 4.66 42 2.34 21 2.32 21 2 8 0 0.0 0 0
Nov 10 3.85 0.55 10 0.55 10 0.00 0 0 2 0 0.0 0 0
Dec 10 3.70 2.73 31 2.73 31 0.00 0 0 20 1 23.4 17 18
Jan 11 2.92 2.29 31 2.29 31 0.00 0 0 23 5 27.8 22 24
Feb 11 2.47 2.75 28 2.75 28 0.00 0 0 16 6 30.9 15 25
March 11 2.80 4.92 30 4.92 30 0.00 0 0 15 3 11.9 8 12
April 11 3.13 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
May 11 3.23 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
June 11 3.75 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
July 11 3.27 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Aug 11 3.25 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 11 3.87 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 39.69" 17.90" 172 days 15.58" 151 2.32" 21 days 2 84 days 15 days 94.0" 62 days 79 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 0.44 **
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 0.27 1.16
10/13/2010 0.00
10/14/2010 0.00
10/15/2010 0.23
10/16/2010 0.00
10/17/2010 0.00
10/18/2010 0.00
10/19/2010 0.00
10/20/2010 0.00
10/21/2010 0.56
10/22/2010 0.09
10/23/2010 0.00
10/24/2010 0.36
10/25/2010 0.03
10/26/2010 0.00
10/27/2010 0.36
10/28/2010 0.00
10/29/2010 0.00
10/30/2010 0.00
10/31/2010 0.00
11/1/2010 0.00
11/2/2010 0.00
11/3/2010 0.00
11/4/2010 0.00
11/5/2010 0.31
11/6/2010 0.24
11/7/2010 0.00
11/8/2010 0.00
11/9/2010 0.00
11/10/2010 0.00
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 0.94
12/2/2010 0.36
12/3/2010 0.02
12/4/2010 0.01
12/5/2010 0.02
12/6/2010 0.14
12/7/2010 0.15
12/8/2010 0.03
12/9/2010 0.00
12/10/2010 0.00
12/11/2010 0.00
12/12/2010 0.10
12/13/2010 0.37
12/14/2010 0.18
12/15/2010 0.17
12/16/2010 T
12/17/2010 0.00
12/18/2010 0.08
12/19/2010 0.00
12/20/2010 0.01
12/21/2010 0.05
12/22/2010 0.00
12/23/2010 0.01
12/24/2010 0.00
12/25/2010 0.01
12/26/2010 0.03
12/27/2010 0.01
12/28/2010 0.04
12/29/2010 0.00
12/30/2010 0.00
12/31/2010 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2011 0.07
1/2/2011 0.52
1/3/2011 0.04
1/4/2011 0.13
1/5/2011 0.08
1/6/2011 0.00
1/7/2011 0.10
1/8/2011 T
1/9/2011 0.07
1/10/2011 0.00
1/11/2011 0.00
1/12/2011 0.26
1/13/2011 0.16
1/14/2011 0.03
1/15/2011 0.02
1/16/2011 0.13
1/17/2011 T
1/18/2011 0.03
1/19/2011 0.16
1/20/2011 0.04
1/21/2011 0.11
1/22/2011 0.02
1/23/2011 0.22
1/24/2011 T
1/25/2011 0.02
1/26/2011 T
1/27/2011 0.01
1/28/2011 0.04
1/29/2011 0.01
1/30/2011 0.02
1/31/2011 T
2/1/2011 0.04
2/2/2011 0.42
2/3/2011 0.07
2/4/2011 0.00
2/5/2011 0.00
2/6/2011 0.33
2/7/2011 T
2/8/2011 0.13
2/9/2011 0.01
2/10/2011 T
2/11/2011 T
2/12/2011 0.13
2/13/2011 0.05
2/14/2011 0.00
2/15/2011 T
2/16/2011 0.00
2/17/2011 0.00
2/18/2011 0.07
2/19/2011 0.01
2/20/2011 0.03
2/21/2011 0.21
2/22/2011 T
2/23/2011 0.00
2/24/2011 T
2/25/2011 0.25
2/26/2011 0.11
2/27/2011 0.15
2/28/2011 0.74
3/1/2011 T
3/2/2011 0.00
3/3/2011 T
3/4/2011
3/5/2011 0.12
3/6/2011 1.62
3/7/2011 0.13
3/8/2011 0.00
3/9/2011 0.00
3/10/2011 0.68
3/11/2011 0.77
3/12/2011 0.12
3/13/2011 0.04
3/14/2011 0.01
3/15/2011 0.00
3/16/2011 0.08
3/17/2011 0.03
3/18/2011 0.00
3/19/2011 0.00
3/20/2011 0.00
3/21/2011 0.42
3/22/2011 T
3/23/2011 0.24
3/24/2011 0.40
3/25/2011 0.00
3/26/2011 0.04
3/27/2011 0.00
3/28/2011 0.00
3/29/2011 0.00
3/30/2011 0.00
3/31/2011 0.22
Day of YearDaily PrcpMultiday Prcp
4/1/2011
4/2/2011
4/3/2011
4/4/2011
4/5/2011
4/6/2011
4/7/2011
4/8/2011
4/9/2011
4/10/2011
4/11/2011
4/12/2011
4/13/2011
4/14/2011
4/15/2011
4/16/2011
4/17/2011
4/18/2011
4/19/2011
4/20/2011
4/21/2011
4/22/2011
4/23/2011
4/24/2011
4/25/2011
4/26/2011
4/27/2011
4/28/2011
4/29/2011
4/30/2011
5/1/2011
5/2/2011
5/3/2011
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
5/16/2011
5/17/2011
5/18/2011
5/19/2011
5/20/2011
5/21/2011
5/22/2011
5/23/2011
5/24/2011
5/25/2011
5/26/2011
5/27/2011
5/28/2011
5/29/2011
5/30/2011
5/31/2011
6/1/2011
6/2/2011
6/3/2011
6/4/2011
6/5/2011
6/6/2011
6/7/2011
6/8/2011
6/9/2011
6/10/2011
6/11/2011
6/12/2011
6/13/2011
6/14/2011
6/15/2011
6/16/2011
6/17/2011
6/18/2011
6/19/2011
6/20/2011
6/21/2011
6/22/2011
6/23/2011
6/24/2011
6/25/2011
6/26/2011
6/27/2011
6/28/2011
6/29/2011
6/30/2011
Day of YearDaily PrcpMultiday Prcp
7/1/2011
7/2/2011
7/3/2011
7/4/2011
7/5/2011
7/6/2011
7/7/2011
7/8/2011
7/9/2011
7/10/2011
7/11/2011
7/12/2011
7/13/2011
7/14/2011
7/15/2011
7/16/2011
7/17/2011
7/18/2011
7/19/2011
7/20/2011
7/21/2011
7/22/2011
7/23/2011
7/24/2011
7/25/2011
7/26/2011
7/27/2011
7/28/2011
7/29/2011
7/30/2011
7/31/2011
8/1/2011
8/2/2011
8/3/2011
8/4/2011
8/5/2011
8/6/2011
8/7/2011
8/8/2011
8/9/2011
8/10/2011
8/11/2011
8/12/2011
8/13/2011
8/14/2011
8/15/2011
8/16/2011
8/17/2011
8/18/2011
8/19/2011
8/20/2011
8/21/2011
8/22/2011
8/23/2011
8/24/2011
8/25/2011
8/26/2011
8/27/2011
8/28/2011
8/29/2011
8/30/2011
8/31/2011
9/1/2011
9/2/2011
9/3/2011
9/4/2011
9/5/2011
9/6/2011
9/7/2011
9/8/2011
9/9/2011
9/10/2011
9/11/2011
9/12/2011
9/13/2011
9/14/2011
9/15/2011
9/16/2011
9/17/2011
9/18/2011
9/19/2011
9/20/2011
9/21/2011
9/22/2011
9/23/2011
9/24/2011
9/25/2011
9/26/2011
9/27/2011
9/28/2011
9/29/2011
9/30/2011



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2010 7:00 AM 0.44 M M M M moderate rain 11 am to 3 pm on western fringe of coastal storm.
10/12/2010 7:00 AM 0.27 M M M M
10/13/2010 7:00 AM 0.00 0.0 M M M
10/14/2010 7:00 AM 0.00 0.0 M M M
10/15/2010 7:00 AM 0.23 M M M M
10/16/2010 7:00 AM 0.00 0.0 M M M
10/17/2010 7:00 AM 0.00 0.0 M M M
10/18/2010 7:00 AM 0.00 0.0 M M M
10/19/2010 7:00 AM 0.00 0.0 M M M
10/20/2010 7:00 AM 0.00 0.0 M M M
10/21/2010 7:00 AM 0.56 M M M M
10/22/2010 7:00 AM 0.09 M M M M
10/23/2010 7:00 AM 0.00 0.0 M M M
10/24/2010 7:00 AM 0.36 M M M M rain 230 pm to 10 pm, shower 6 am.
10/25/2010 7:00 AM 0.03 M M M M shower 11 pm
10/26/2010 7:00 AM 0.00 0.0 M M M
10/27/2010 7:00 AM 0.36 M M M M heavy showers 6 pm to 10 pm.
10/28/2010 7:00 AM 0.00 0.0 M M M
10/29/2010 7:00 AM 0.00 0.0 M M M
10/30/2010 7:00 AM 0.00 0.0 M M M
10/31/2010 7:00 AM 0.00 0.0 M M M
11/1/2010 7:00 AM 0.00 0.0 M M M
11/2/2010 7:00 AM 0.00 0.0 M M M
11/3/2010 7:00 AM 0.00 0.0 M M M
11/4/2010 7:00 AM 0.00 0.0 M M M
11/5/2010 9:00 AM 0.31 M M M M
11/6/2010 7:00 AM 0.24 M M M M cold light rain all day...ended 8 pm.
11/7/2010 7:00 AM 0.00 0.0 M M M
11/8/2010 8:00 AM 0.00 0.0 M M M
11/9/2010 7:00 AM 0.00 0.0 M M M
11/10/2010 7:00 AM 0.00 0.0 M M M
12/1/2010 7:00 AM 0.94 M M M M wet
12/2/2010 7:00 AM 0.36 2.4 M 2.0 0.20 rain changed to wet snow 8 am, heavy 10 am to 1130 am with thunder. lake effect stayed 3-5 mile south thereafter.
12/3/2010 6:00 AM 0.02 0.4 M 1.5 0.20 very light snow at times.
12/4/2010 7:00 AM 0.01 0.2 M M M
12/5/2010 7:00 AM 0.02 0.3 M M M
12/6/2010 7:00 AM 0.14 3.2 0.14 3.5 0.15 Light to moderate snow 2 am to 7 am...Huron/Ontario lake effect streamers.
12/7/2010 7:00 AM 0.15 2.6 0.15 5.0 0.30 Moderate lake snows 8 am to 11 am...occasional light snow rest of day and evening.
12/8/2010 7:00 AM 0.03 0.7 M 4.5 M
12/9/2010 7:00 AM 0.00 0.0 M M M
12/10/2010 7:00 AM 0.00 0.0 M M M
12/11/2010 7:00 AM 0.00 0.0 M 2.5 M
12/12/2010 7:00 AM 0.10 M M 1.0 M
12/13/2010 7:00 AM 0.37 T M T M steady light rain through 4 pm. flurries overnight. mostly bare ground.
12/14/2010 7:00 AM 0.18 3.7 0.18 3.5 0.18 continuous light snow...occly moderate 7-9 pm
12/15/2010 8:00 AM 0.17 4.1 0.17 7.0 0.40 snow showers and squalls off Georgian Bay noon to 4 pm.
12/16/2010 9:00 AM T T M 5.0 M Just a few flurries
12/17/2010 7:00 AM 0.00 0.0 M M M
12/18/2010 9:00 AM 0.08 1.7 0.08 5.0 0.50 light lake snow 8 pm to current
12/19/2010 7:00 AM 0.00 0.0 M M M
12/20/2010 9:00 AM 0.01 0.2 M 4.0 M very light snow 4 pm to overnight.
12/21/2010 9:00 AM 0.05 1.2 M 5.0 M snow showers 11 am to 11 pm...a few briefly heavy.
12/22/2010 7:00 AM 0.00 0.0 M M M
12/23/2010 6:00 AM 0.01 0.1 M 3.5 M snizzle/freezing drizzle 6-10 pm
12/24/2010 7:00 AM 0.00 0.0 M M M
12/25/2010 7:00 AM 0.01 0.3 M M M
12/26/2010 7:00 AM 0.03 0.5 M 3.5 M
12/27/2010 8:00 AM 0.01 0.4 M 3.5 M
12/28/2010 9:00 AM 0.04 1.4 0.04 4.0 M light fluffy snow through noon mon.
12/29/2010 7:00 AM 0.00 0.0 M M M
12/30/2010 7:00 AM 0.00 0.0 M M M
12/31/2010 9:00 AM 0.00 0.0 M 1.0 M rapid snowmelt overnight.
1/1/2011 7:00 AM 0.07 0.0 M 0.0 M no snow left.
1/2/2011 8:00 AM 0.52 0.0 M 0.0 M
1/3/2011 8:00 AM 0.04 1.5 0.04 1.0 0.03 lake effect snow showers 9 am to 4 pm
1/4/2011 8:00 AM 0.13 1.6 0.13 2.0 0.15 steady light snow 3 am to current
1/5/2011 9:00 AM 0.08 0.9 0.08 3.0 0.25 snow showers noon to 7 pm
1/6/2011 7:00 AM 0.00 0.0 M 2.0 M
1/7/2011 6:00 AM 0.10 1.8 0.10 3.5 0.40 light snow 3 pm to 1 am, briefly moderate 12-1230 am
1/8/2011 7:00 AM T T M 3.0 0.40
1/9/2011 7:00 AM 0.07 2.3 0.07 5.0 0.45 heavy snowsquall 330-430 pm sunday (1.8"), snow showers 5-7 am this morning (0.5").
1/10/2011 7:00 AM 0.00 0.0 M M M
1/11/2011 7:00 AM 0.00 0.0 M 3.0 0.35
1/12/2011 7:00 AM 0.26 3.8 0.26 6.5 M steady light to mod. snow 6 pm to current.
1/13/2011 9:00 AM 0.16 3.7 0.16 10.5 M snow/snow showers to 4 pm (1.7"), lake effect fluff overnight (11 pm to current) (2.0)"
1/14/2011 9:00 AM 0.03 1.0 M 10.0 M off/on lake snow showers.
1/15/2011 7:00 AM 0.02 0.3 0.02 8.0 0.65 dying lake effect band 9-11 pm (0.2), light snow 6am to 7 am (0.1)
1/16/2011 7:00 AM 0.13 1.6 0.13 9.0 M heavy snow 1" in 40 minutes 2 pm
1/17/2011 7:00 AM T T M 7.5 0.90
1/18/2011 7:00 AM 0.03 0.1 M 7.5 M light wintry mix 3-5 am
1/19/2011 7:00 AM 0.16 0.1 M 6.0 0.90 light rain 5 pm to 9 pm, wet snow to 11 pm, freezing drizzle thereafter.
1/20/2011 7:00 AM 0.04 0.6 M 6.5 M
1/21/2011 7:00 AM 0.11 1.7 0.11 7.5 M light snow 630 pm to 5 am
1/22/2011 7:00 AM 0.02 0.4 M M M
1/23/2011 7:00 AM 0.22 4.3 M M M
1/24/2011 7:00 AM T T M M M
1/25/2011 7:00 AM 0.02 0.3 M M M
1/26/2011 9:00 AM T T M 9.5 M
1/27/2011 8:00 AM 0.01 0.1 M 8.5 1.20 occasional "snizzle" 3 pm on...
1/28/2011 8:00 AM 0.04 0.7 0.04 8.5 1.25 occl very light snow overnight.
1/29/2011 8:00 AM 0.01 0.4 M 8.0 M endless flurries/lgt snow showers till about 11 pm
1/30/2011 8:00 AM 0.02 0.4 M 8.0 M
1/31/2011 8:00 AM T 0.2 M 7.5 M
2/1/2011 9:00 AM 0.04 0.6 M 8.0 1.30
2/2/2011 8:00 AM 0.42 3.3 0.42 11.0 1.70 snow starts 10 pm changes to sleet/frzg rain by 3 am. much less snow than expected.
2/3/2011 9:00 AM 0.07 3.2 M 12.0 M "fluffy" snow on backside of storm. storm total since late 2/1 7.1".
2/4/2011 7:00 AM 0.00 0.0 M M M
2/5/2011 7:00 AM 0.00 0.0 M M M
2/6/2011 7:00 AM 0.33 3.5 0.33 13.0 2.00 Snow 1 pm to 11 pm, some sleet/frzg rain 3 pm and again 8 pm.
2/7/2011 7:00 AM T T M 12.0 M Spotty snizzle at times.
2/8/2011 9:00 AM 0.13 2.2 M 13.0 M very slick roads monday evening as temps fell with grainy light snow.
2/9/2011 9:00 AM 0.01 0.4 M 12.0 M
2/10/2011 7:00 AM T T M 12.0 M sunny windy and bitterly cold.
2/11/2011 7:00 AM T 0.1 M 11.5 M lake effect snow showers 2-3 pm.
2/12/2011 9:00 AM 0.13 2.0 0.13 13.0 M Heavy snow 7-830 am. (1.7)
2/13/2011 7:00 AM 0.05 0.8 0.05 13.0 M 22 hour ob from 9am sat to 7 am sun.
2/14/2011 7:00 AM 0.00 0.0 M 7.0 2.20 very mild overnight. rapid snowmelt and settling. wind gusts 50 mph 4-6 am.
2/15/2011 7:00 AM T T M 7.0 M
2/16/2011 7:00 AM 0.00 0.0 M 6.0 M
2/17/2011 7:00 AM 0.00 0.0 M 5.5 M
2/18/2011 9:00 AM 0.07 0.0 M 1.5 0.50 dramtic meltdown of snowpack. temps over 50F 11 am to 6 am. 30-40% bare ground.
2/19/2011 7:00 AM 0.01 0.2 M T M very windy...all snow melted by afternoon of 18th.
2/20/2011 7:00 AM 0.03 1.5 0.03 1.0 M snow showers (Huron/Georgian Bay) 10 am to 4 pm
2/21/2011 7:00 AM 0.21 2.6 0.21 3.0 0.25
2/22/2011 7:00 AM T T M 2.0 M
2/23/2011 7:00 AM 0.00 0.0 M 1.5 M clear skies.
2/24/2011 7:00 AM T T M 1.0 M 30% bare ground again.
2/25/2011 9:00 AM 0.25 5.0 0.25 5.0 M heavy snow 7-9 am
2/26/2011 9:00 AM 0.11 3.0 0.11 6.5 0.40 total snow 5am to 2 pm: 8.0", largest of season.
2/27/2011 8:00 AM 0.15 2.5 0.15 9.0 M most snow 6 pm to 11 pm
2/28/2011 7:00 AM 0.74 T M 4.5 1.00 mdt to heavy rain 2 am to current
3/1/2011 7:00 AM T T M 3.0 0.75
3/2/2011 6:00 AM 0.00 0.0 M 2.5 M
3/3/2011 7:00 AM T T M 2.0 M 20% bare ground.
3/5/2011 7:00 AM 0.12 0.0 M T M
3/6/2011 7:00 AM 1.62 2.3 M 2.0 M steady moderate rain all day and evening...changed to snow 3 am.
3/7/2011 7:00 AM 0.13 1.1 M 3.0 0.50 storm total 3.4"
3/8/2011 9:00 AM 0.00 0.0 M 2.0 M clear all day
3/9/2011 9:00 AM 0.00 0.0 M 1.0 M 30-40% bare ground.
3/10/2011 9:00 AM 0.68 T M 0.0 M snow gone...just piles.
3/11/2011 9:00 AM 0.77 T M 0.0 M some wet snow last few hours.
3/12/2011 9:00 AM 0.12 0.6 M 0.5 M wet snow and some freezing drizzle
3/13/2011 7:00 AM 0.04 T M 0.0 M periodic drizzle/snizzle overnight.
3/14/2011 9:00 AM 0.01 0.2 M T M
3/15/2011 7:00 AM 0.00 0.0 M M M
3/16/2011 7:00 AM 0.08 M M M M
3/17/2011 7:00 AM 0.03 M M M M
3/18/2011 7:00 AM 0.00 0.0 M M M
3/19/2011 7:00 AM 0.00 0.0 M M M
3/20/2011 7:00 AM 0.00 0.0 M M M
3/21/2011 7:00 AM 0.42 0.0 M M M
3/22/2011 7:00 AM T 0.0 M 0.0 M
3/23/2011 7:00 AM 0.24 2.7 0.24 2.5 M moderate to heavy snow 4-630 am.
3/24/2011 7:00 AM 0.40 3.7 M 5.5 0.60 some sleet/freezing rain 11 am to 4 pm. storm total 6.4"
3/25/2011 7:00 AM 0.00 0.0 M M M
3/26/2011 9:00 AM 0.04 0.8 M 3.0 M brief snowsqualls 5 pm and 930 pm
3/27/2011 7:00 AM 0.00 0.0 M M M
3/28/2011 7:00 AM 0.00 0.0 M 1.5 0.30 30% bare ground.
3/29/2011 7:00 AM 0.00 0.0 M M M
3/30/2011 7:00 AM 0.00 0.0 M M M
3/31/2011 7:00 AM 0.22 0.5 M T M rain and wet snow.



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/1/2010 10/11/2010 12:00 AM 11 1.16 M M
10/3/2010 10/12/2010 7:00 AM 10 1.16 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