Station Overview Station Location
Station Number IL-MC-1 Latitude 37.25511
Station Name Belknap 11.1 ESE Longitude -88.756696
County Massac Elevation (ft) 371



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 3.92 11.35 20 11.35 16 0.00 4 1 15 0 0.0 0 0
Nov 09 4.33 0.48 5 0.48 5 0.00 0 0 5 0 0.0 0 0
Dec 09 4.64 5.31 10 5.31 10 0.00 0 0 10 0 0.0 0 0
Jan 10 3.49 3.08 9 3.08 9 0.00 0 0 9 0 6.3 2 2
Feb 10 3.63 1.10 11 1.10 11 0.00 0 0 11 0 0.0 0 0
March 10 4.28 2.99 5 2.99 5 0.00 0 0 5 0 0.0 0 0
April 10 4.53 3.86 4 3.86 4 0.00 0 0 4 0 0.0 0 0
May 10 5.21 4.12 16 4.12 16 0.00 0 0 16 0 0.0 0 0
June 10 3.94 4.00 10 4.00 10 0.00 0 0 10 0 0.0 0 0
July 10 4.20 1.72 13 1.72 13 0.00 0 0 13 0 0.0 0 0
Aug 10 2.85 1.79 7 1.79 7 0.00 0 0 7 0 0.0 0 0
Sept 10 3.37 4.65 30 4.65 30 0.00 0 0 6 0 0.0 0 0
Water Year Totals: 48.39" 44.45" 140 days 44.45" 136 0.00" 4 days 1 111 days 0 days 6.3" 2 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
10/1/2009
10/2/2009 0.42
10/3/2009
10/4/2009
10/5/2009 0.02
10/6/2009 **
10/7/2009 2.32 **
10/8/2009 **
10/9/2009 2.38 0.00
10/10/2009 0.61
10/11/2009
10/12/2009
10/13/2009
10/14/2009 0.41
10/15/2009 1.31
10/16/2009 0.02
10/17/2009 0.03
10/18/2009 0.01
10/19/2009
10/20/2009
10/21/2009
10/22/2009
10/23/2009 0.98
10/24/2009 0.00
10/25/2009
10/26/2009
10/27/2009 0.11
10/28/2009 0.96
10/29/2009
10/30/2009 0.42
10/31/2009 1.35
11/1/2009
11/2/2009
11/3/2009
11/4/2009
11/5/2009
11/6/2009
11/7/2009
11/8/2009
11/9/2009
11/10/2009
11/11/2009
11/12/2009
11/13/2009
11/14/2009
11/15/2009
11/16/2009
11/17/2009 0.14
11/18/2009 0.04
11/19/2009
11/20/2009
11/21/2009
11/22/2009
11/23/2009
11/24/2009 0.02
11/25/2009 0.11
11/26/2009
11/27/2009
11/28/2009
11/29/2009
11/30/2009 0.17
12/1/2009
12/2/2009
12/3/2009 0.70
12/4/2009
12/5/2009
12/6/2009
12/7/2009 0.03
12/8/2009
12/9/2009 1.11
12/10/2009
12/11/2009
12/12/2009
12/13/2009 0.35
12/14/2009
12/15/2009
12/16/2009
12/17/2009
12/18/2009
12/19/2009 0.05
12/20/2009
12/21/2009
12/22/2009
12/23/2009 0.01
12/24/2009 1.41
12/25/2009 1.49
12/26/2009 0.01
12/27/2009
12/28/2009
12/29/2009
12/30/2009
12/31/2009 0.15
Day of YearDaily PrcpMultiday Prcp
1/1/2010
1/2/2010
1/3/2010
1/4/2010
1/5/2010
1/6/2010
1/7/2010 0.21
1/8/2010
1/9/2010 0.02
1/10/2010
1/11/2010
1/12/2010
1/13/2010
1/14/2010
1/15/2010
1/16/2010
1/17/2010 0.17
1/18/2010
1/19/2010
1/20/2010 0.70
1/21/2010 0.59
1/22/2010 0.61
1/23/2010
1/24/2010 0.38
1/25/2010 0.10
1/26/2010
1/27/2010
1/28/2010
1/29/2010
1/30/2010 0.30
1/31/2010
2/1/2010
2/2/2010
2/3/2010
2/4/2010
2/5/2010 0.48
2/6/2010 0.01
2/7/2010
2/8/2010 0.25
2/9/2010 0.06
2/10/2010 0.01
2/11/2010
2/12/2010
2/13/2010 0.01
2/14/2010 0.06
2/15/2010 0.01
2/16/2010 0.01
2/17/2010
2/18/2010
2/19/2010
2/20/2010
2/21/2010 0.19
2/22/2010 0.01
2/23/2010
2/24/2010
2/25/2010
2/26/2010
2/27/2010
2/28/2010
3/1/2010
3/2/2010
3/3/2010
3/4/2010
3/5/2010
3/6/2010
3/7/2010 0.01
3/8/2010
3/9/2010 0.12
3/10/2010
3/11/2010 0.25
3/12/2010
3/13/2010
3/14/2010
3/15/2010
3/16/2010
3/17/2010
3/18/2010
3/19/2010
3/20/2010
3/21/2010
3/22/2010 1.89
3/23/2010
3/24/2010
3/25/2010
3/26/2010
3/27/2010
3/28/2010 0.72
3/29/2010
3/30/2010
3/31/2010
Day of YearDaily PrcpMultiday Prcp
4/1/2010
4/2/2010
4/3/2010 0.66
4/4/2010
4/5/2010
4/6/2010
4/7/2010
4/8/2010 0.49
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 0.72
4/25/2010 1.99
4/26/2010
4/27/2010
4/28/2010
4/29/2010
4/30/2010
5/1/2010 1.58
5/2/2010 0.29
5/3/2010 0.23
5/4/2010
5/5/2010 0.22
5/6/2010
5/7/2010
5/8/2010
5/9/2010 0.01
5/10/2010
5/11/2010
5/12/2010 0.04
5/13/2010
5/14/2010
5/15/2010
5/16/2010
5/17/2010 0.11
5/18/2010 0.01
5/19/2010 0.09
5/20/2010 0.28
5/21/2010 0.62
5/22/2010
5/23/2010
5/24/2010
5/25/2010
5/26/2010
5/27/2010 0.01
5/28/2010 0.51
5/29/2010 0.05
5/30/2010 0.01
5/31/2010 0.06
6/1/2010 0.16
6/2/2010 0.29
6/3/2010 0.20
6/4/2010
6/5/2010
6/6/2010
6/7/2010 0.04
6/8/2010
6/9/2010 0.43
6/10/2010
6/11/2010 0.78
6/12/2010
6/13/2010
6/14/2010
6/15/2010 0.15
6/16/2010
6/17/2010 1.30
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 0.64
6/29/2010 0.01
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 0.11
7/10/2010
7/11/2010 0.41
7/12/2010 0.07
7/13/2010 0.05
7/14/2010
7/15/2010
7/16/2010 0.68
7/17/2010 0.05
7/18/2010 0.14
7/19/2010 0.01
7/20/2010
7/21/2010 0.12
7/22/2010 0.03
7/23/2010
7/24/2010
7/25/2010
7/26/2010
7/27/2010
7/28/2010 0.03
7/29/2010 0.01
7/30/2010
7/31/2010 0.01
8/1/2010 0.01
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 0.06
8/13/2010
8/14/2010
8/15/2010 0.08
8/16/2010
8/17/2010
8/18/2010
8/19/2010
8/20/2010
8/21/2010 1.18
8/22/2010
8/23/2010
8/24/2010
8/25/2010
8/26/2010
8/27/2010
8/28/2010
8/29/2010 0.17
8/30/2010 0.24
8/31/2010 0.05
9/1/2010 0.01
9/2/2010 0.00
9/3/2010 0.02
9/4/2010 0.00
9/5/2010 0.00
9/6/2010 0.00
9/7/2010 0.00
9/8/2010 0.00
9/9/2010 0.31
9/10/2010 4.22
9/11/2010 0.00
9/12/2010 0.00
9/13/2010 0.00
9/14/2010 0.00
9/15/2010 0.00
9/16/2010 0.08
9/17/2010 0.00
9/18/2010 0.00
9/19/2010 0.00
9/20/2010 0.00
9/21/2010 0.00
9/22/2010 0.00
9/23/2010 0.00
9/24/2010 0.00
9/25/2010 0.00
9/26/2010 0.00
9/27/2010 0.01
9/28/2010 0.00
9/29/2010 0.00
9/30/2010 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/2/2009 9:00 AM 0.42 M M M M
10/5/2009 9:00 AM 0.02 M M M M
10/7/2009 9:00 AM 2.32 M M M M Most of the rain fell in less than 2 hours during the morning hours. The majority of the rain fell during 1 hour. Lot of lightning and thunder.
10/9/2009 9:00 AM 2.38 M M M M Total rain since Tuesday is now up to 5.21" More rain fell today after the daily total taken at 9 am this morning.
10/10/2009 9:00 AM 0.61 M M M M Most of the rain stopped after 7 on last night. It rained basically all day.
10/14/2009 9:00 AM 0.41 M M M M
10/15/2009 9:00 AM 1.31 M M M M
10/16/2009 9:00 AM 0.02 M M M M
10/17/2009 9:00 AM 0.03 M M M M
10/18/2009 9:00 AM 0.01 M M M M
10/23/2009 9:00 AM 0.98 M M M M Rain started falling at noon yesterday and ended early this morning. No thunder observed. 996 low passed just to our west/northwest.
10/24/2009 9:02 AM 0.00 0.0 M M M
10/27/2009 9:00 AM 0.11 M M M M Rain started to fall between 5 and 6 am this morning. Looks like rain will continue all day and into this evening. Big fall system shaping up for later in the week. I am expecting heavy rainfall totals.
10/28/2009 9:00 AM 0.96 M M M M Rain started falling early yesterday morning and continued all day into the evening hours. Rain finally ended about 9-10 pm last night. Steady rain with occasionally some moderate downpours. A big rain event is on tap in the coming days. Record breaking month of rain will continue.
10/30/2009 9:00 AM 0.42 M M M M
10/31/2009 9:00 AM 1.35 M M M M
11/17/2009 9:00 AM 0.14 M M M M Light rain - nothing heavy. Cloudy day. Lot of low clouds.
11/18/2009 9:00 AM 0.04 M M M M
11/24/2009 9:00 AM 0.02 M M M M
11/25/2009 9:00 AM 0.11 M M M M
11/30/2009 9:00 AM 0.17 M M M M
12/3/2009 9:00 AM 0.70 M M M M All day rain - raw. Windy - pressure droppped significantly during the day. Around midnight it was close to 29.80 and it fell into the 29.30s by early afternoon.
12/7/2009 9:00 AM 0.03 M M M M Sleet fell late in the evening and overnight. There was a trace on the roof and ground from time to time. Temperatures remained above freezing.
12/9/2009 9:00 AM 1.11 M M M M Powerful storm system - pressure readings were down into the 29.20s. We started out yesterday around 30.18 at midnight. It was an impressive storm. We had a light to moderate rain through most of the day. Winds started picking up in the afternoon with gusts over 30 mph. By 10 pm we had gusts over 40 mph. After midnight this morning we had gusts over 50 mph. Highest gust was 52 mph. Winds were very strong all day today - the 9th. Snow fell to our north - blizzard warnings were issued for parts of northern Illinois. Deep low pressure system!
12/13/2009 9:00 AM 0.35 M M M M
12/19/2009 9:00 AM 0.05 M M M M Rain mixed with snow. Snow flurries through the day.
12/23/2009 9:00 AM 0.01 M M M M
12/24/2009 9:00 AM 1.41 M M M M Rain rain and more rain. Rain started yesterday evening and increased through the night. Winds have started to pick up in front of the massive storm system moving into the central United States.
12/25/2009 9:00 AM 1.49 M M M M Lots of rain with a massive winter storm in the middle of the nation. We have experienced winds over 40 mph since late yesterday afternoon. The highest winds were this morning - I measured several gusts over 50 mph. Rain has changed to freezing drizzle, snow, snow pellets this morning. Temperatures were around 60 yesterday evening. We have fallen into the lower 30s this morning. Winds continue to blow.
12/26/2009 9:00 AM 0.01 M M M M Trace of freezing rain and snow.
12/31/2009 9:00 AM 0.15 M M M M Mostly light rain - around 0.01" of sleet fell during the morning hours.
1/7/2010 9:00 AM 0.21 1.3 0.21 1.3 M 1.3" of snow fell overnight. QPF was 0.21". Lot of wind and cold. It has been a cold January thus far! Numerous nights in the single digits.
1/9/2010 9:00 AM 0.02 M M M M Light - fluffy snow on and off yesterday. No real accumulation.
1/17/2010 9:00 AM 0.17 M M M M Light rain - cloudy. Milder than it has been.
1/20/2010 9:00 AM 0.70 M M M M Rain fell overnight. Not heavy. No thunder.
1/21/2010 8:00 AM 0.59 M M M M First thunderstorm of the year. Occurred early this morning after 2 am and before 6 am.
1/22/2010 9:00 AM 0.61 M M M M
1/24/2010 9:00 AM 0.38 M M M M Thunderstorms with frequent lightning after 9 pm last night. No severe weather reported.
1/25/2010 9:00 AM 0.10 M M M M Rain fell between 2 pm and 6 pm. Mainly a brief line of showers and isolated thunderstorms. Small hail was reported to our southwest. None observed here.
1/30/2010 9:00 AM 0.30 5.0 0.30 5.0 0.30 5" of snow.
2/5/2010 9:00 AM 0.48 M M M M Rain
2/6/2010 9:00 AM 0.01 M M M M
2/8/2010 9:00 AM 0.25 M M M M
2/9/2010 9:00 AM 0.06 M M M M
2/10/2010 9:00 AM 0.01 M M M M
2/13/2010 9:00 AM 0.01 M M M M
2/14/2010 9:00 AM 0.06 M M M M
2/15/2010 9:00 AM 0.01 M M M M
2/16/2010 9:00 AM 0.01 M M M M
2/21/2010 9:00 AM 0.19 M M M M
2/22/2010 9:00 AM 0.01 M M M M
3/7/2010 9:00 AM 0.01 M M M M
3/9/2010 9:00 AM 0.12 M M M M
3/11/2010 9:00 AM 0.25 M M M M Thunderstorms - brief heavy rain. Lot of lightning. Mainly between 1:30 am and 3:00 am.
3/22/2010 9:00 AM 1.89 M M M M
3/28/2010 9:00 AM 0.72 M M M M Thunder and lightning overnight. Brief gusty winds with some of the storms.
4/3/2010 9:00 AM 0.66 M M M M
4/8/2010 9:00 AM 0.49 M M M M Thunderstorms.
4/24/2010 8:00 AM 0.72 M M M M
4/25/2010 9:00 AM 1.99 M M M M
5/1/2010 9:00 AM 1.58 M M M M
5/2/2010 9:00 AM 0.29 M M M M
5/3/2010 12:00 AM 0.23 M M M M
5/5/2010 12:00 AM 0.22 M M M M
5/9/2010 12:00 AM 0.01 M M M M
5/12/2010 12:00 AM 0.04 M M M M
5/17/2010 12:00 AM 0.11 M M M M
5/18/2010 12:00 AM 0.01 M M M M
5/19/2010 12:00 AM 0.09 M M M M
5/20/2010 12:00 AM 0.28 M M M M
5/21/2010 12:00 AM 0.62 M M M M
5/27/2010 12:00 AM 0.01 M M M M
5/28/2010 12:00 AM 0.51 M M M M
5/29/2010 12:00 AM 0.05 M M M M
5/30/2010 12:00 AM 0.01 M M M M
5/31/2010 12:00 AM 0.06 M M M M
6/1/2010 11:59 PM 0.16 M M M M
6/2/2010 11:59 PM 0.29 M M M M
6/3/2010 11:59 PM 0.20 M M M M
6/7/2010 11:59 PM 0.04 M M M M
6/9/2010 11:59 PM 0.43 M M M M
6/11/2010 11:59 PM 0.78 M M M M
6/15/2010 11:59 PM 0.15 M M M M Heavy line of storms. Beautiful mammatus clouds were observed. Towering cumulus. Severe thunderstorms within 5 miles of the station.
6/17/2010 11:59 PM 1.30 M M M M Heavy thunderstorm dropped 1.30" of rain in 30 minutes.
6/28/2010 11:59 PM 0.64 M M M M
6/29/2010 11:59 PM 0.01 M M M M
7/9/2010 11:59 PM 0.11 M M M M
7/11/2010 11:59 PM 0.41 M M M M
7/12/2010 11:59 PM 0.07 M M M M
7/13/2010 11:59 PM 0.05 M M M M
7/16/2010 11:59 PM 0.68 M M M M
7/17/2010 11:59 PM 0.05 M M M M
7/18/2010 11:59 PM 0.14 M M M M
7/19/2010 11:59 PM 0.01 M M M M
7/21/2010 11:59 PM 0.12 M M M M
7/22/2010 11:59 PM 0.03 M M M M
7/28/2010 11:59 PM 0.03 M M M M
7/29/2010 11:59 PM 0.01 M M M M
7/31/2010 11:59 PM 0.01 M M M M
8/1/2010 11:59 PM 0.01 M M M M
8/12/2010 11:00 PM 0.06 M M M M
8/15/2010 3:00 PM 0.08 M M M M Drought conditions. Little rainfall this month. It has been nearly sixty days since I have experienced 1" of rain in a 24 hour period. Farmers report significant crop losses.
8/21/2010 11:59 PM 1.18 M M M M Heavy thunderstorm with frequent lightning during the early morning hours - 4 am - 6 am.
8/29/2010 11:59 PM 0.17 M M M M
8/30/2010 11:59 PM 0.24 M M M M
8/31/2010 11:59 PM 0.05 M M M M Light rain during the afternoon - passing shower.
9/1/2010 11:59 PM 0.01 M M M M
9/2/2010 11:59 PM 0.00 0.0 M M M
9/3/2010 12:00 PM 0.02 M M M M
9/4/2010 11:59 PM 0.00 0.0 M M M
9/5/2010 11:59 PM 0.00 0.0 M M M
9/6/2010 11:59 PM 0.00 0.0 M M M
9/7/2010 11:59 PM 0.00 0.0 M M M
9/8/2010 11:59 PM 0.00 0.0 M M M
9/9/2010 11:59 PM 0.31 M M M M
9/10/2010 11:59 PM 4.22 M M M M Remnants of Tropical Storm Hermine. Rain had ended around 9 a.m.
9/11/2010 11:59 PM 0.00 0.0 M M M
9/12/2010 11:59 PM 0.00 0.0 M M M
9/13/2010 11:59 PM 0.00 0.0 M M M
9/14/2010 11:59 PM 0.00 0.0 M M M
9/15/2010 11:59 PM 0.00 0.0 M M M
9/16/2010 11:59 PM 0.08 M M M M Light rain - morning hours. No thunder.
9/17/2010 11:59 PM 0.00 0.0 M M M
9/18/2010 11:59 PM 0.00 0.0 M M M
9/19/2010 11:59 PM 0.00 0.0 M M M Dry
9/20/2010 11:59 PM 0.00 0.0 M M M Dry
9/21/2010 11:59 PM 0.00 0.0 M M M Dry
9/22/2010 11:59 PM 0.00 0.0 M M M Dry
9/23/2010 11:59 PM 0.00 0.0 M M M Dry
9/24/2010 11:59 PM 0.00 0.0 M M M Dry
9/25/2010 7:00 AM 0.00 0.0 M M M Dry
9/26/2010 7:00 PM 0.00 0.0 M M M Saw lightning between 7 and 8 pm. To the west. Drought worsens.
9/27/2010 7:00 AM 0.01 0.0 M M M Saw lightning between 7 and 8 pm. To the west. Drought worsens.
9/28/2010 7:00 AM 0.00 0.0 M M M Dry
9/29/2010 7:00 AM 0.00 0.0 M M M Dry
9/30/2010 7:00 AM 0.00 0.0 M M M Dry



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/6/2009 10/09/2009 12:00 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