Station Overview Station Location
Station Number IL-LV-10 Latitude 40.87097
Station Name Pontiac 0.7 ESE Longitude -88.629935
County Livingston Elevation (ft) 643



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 15 3.02 0.85 1 0.85 1 0.00 0 0 1 0 0.0 0 0
Nov 15 3.19 0.82 4 0.82 4 0.00 0 0 2 0 4.6 2 4
Dec 15 2.39 4.17 4 4.17 4 0.00 0 0 4 0 0.4 1 1
Jan 16 1.93 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Feb 16 1.62 1.25 1 1.25 1 0.00 0 0 1 0 0.0 0 0
March 16 2.64 1.20 5 1.20 5 0.00 0 0 3 0 0.0 0 0
April 16 3.29 1.10 8 1.10 8 0.00 0 0 5 1 0.0 0 0
May 16 4.04 3.97 13 3.97 13 0.00 0 0 11 1 0.0 0 0
June 16 3.72 3.24 9 3.24 9 0.00 0 0 5 0 0.0 0 0
July 16 3.88 4.04 3 4.04 3 0.00 0 0 3 0 0.0 0 0
Aug 16 3.66 8.30 12 4.61 7 3.69 5 1 5 1 0.0 0 0
Sept 16 2.96 3.00 2 3.00 2 0.00 0 0 2 0 0.0 0 0
Water Year Totals: 36.34" 31.94" 62 days 28.25" 57 3.69" 5 days 1 42 days 3 days 5.0" 3 days 5 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
10/1/2015
10/2/2015
10/3/2015
10/4/2015
10/5/2015
10/6/2015
10/7/2015
10/8/2015
10/9/2015
10/10/2015
10/11/2015
10/12/2015
10/13/2015
10/14/2015
10/15/2015
10/16/2015
10/17/2015
10/18/2015
10/19/2015
10/20/2015
10/21/2015
10/22/2015
10/23/2015
10/24/2015
10/25/2015
10/26/2015
10/27/2015
10/28/2015 0.85
10/29/2015
10/30/2015
10/31/2015
11/1/2015
11/2/2015
11/3/2015
11/4/2015
11/5/2015
11/6/2015
11/7/2015
11/8/2015
11/9/2015
11/10/2015
11/11/2015
11/12/2015
11/13/2015
11/14/2015
11/15/2015
11/16/2015
11/17/2015
11/18/2015
11/19/2015
11/20/2015
11/21/2015 0.32
11/22/2015 0.50
11/23/2015 0.00
11/24/2015 0.00
11/25/2015
11/26/2015
11/27/2015
11/28/2015
11/29/2015
11/30/2015
12/1/2015
12/2/2015
12/3/2015
12/4/2015
12/5/2015
12/6/2015
12/7/2015
12/8/2015
12/9/2015
12/10/2015
12/11/2015
12/12/2015
12/13/2015
12/14/2015
12/15/2015
12/16/2015
12/17/2015
12/18/2015
12/19/2015
12/20/2015
12/21/2015
12/22/2015
12/23/2015
12/24/2015
12/25/2015
12/26/2015
12/27/2015 1.57
12/28/2015 0.45
12/29/2015 2.11
12/30/2015 0.04
12/31/2015
Day of YearDaily PrcpMultiday Prcp
1/1/2016
1/2/2016
1/3/2016
1/4/2016
1/5/2016
1/6/2016
1/7/2016
1/8/2016
1/9/2016
1/10/2016
1/11/2016
1/12/2016
1/13/2016
1/14/2016
1/15/2016
1/16/2016
1/17/2016
1/18/2016
1/19/2016
1/20/2016
1/21/2016
1/22/2016
1/23/2016
1/24/2016
1/25/2016
1/26/2016
1/27/2016
1/28/2016
1/29/2016
1/30/2016
1/31/2016
2/1/2016
2/2/2016
2/3/2016 1.25
2/4/2016
2/5/2016
2/6/2016
2/7/2016
2/8/2016
2/9/2016
2/10/2016
2/11/2016
2/12/2016
2/13/2016
2/14/2016
2/15/2016
2/16/2016
2/17/2016
2/18/2016
2/19/2016
2/20/2016
2/21/2016
2/22/2016
2/23/2016
2/24/2016
2/25/2016
2/26/2016
2/27/2016
2/28/2016
2/29/2016
3/1/2016
3/2/2016
3/3/2016
3/4/2016
3/5/2016
3/6/2016
3/7/2016
3/8/2016
3/9/2016
3/10/2016
3/11/2016
3/12/2016
3/13/2016
3/14/2016
3/15/2016
3/16/2016
3/17/2016
3/18/2016
3/19/2016
3/20/2016
3/21/2016
3/22/2016
3/23/2016
3/24/2016
3/25/2016 0.70
3/26/2016 0.00
3/27/2016
3/28/2016 0.32
3/29/2016 0.00
3/30/2016
3/31/2016 0.18
Day of YearDaily PrcpMultiday Prcp
4/1/2016 T
4/2/2016 0.09
4/3/2016 0.00
4/4/2016
4/5/2016
4/6/2016
4/7/2016
4/8/2016
4/9/2016
4/10/2016
4/11/2016
4/12/2016
4/13/2016
4/14/2016
4/15/2016
4/16/2016
4/17/2016
4/18/2016
4/19/2016 0.00
4/20/2016
4/21/2016 0.49
4/22/2016 0.07
4/23/2016
4/24/2016
4/25/2016
4/26/2016
4/27/2016
4/28/2016 0.42
4/29/2016 0.03
4/30/2016
5/1/2016 0.75
5/2/2016 0.11
5/3/2016
5/4/2016 0.17
5/5/2016
5/6/2016
5/7/2016
5/8/2016
5/9/2016
5/10/2016 2.04
5/11/2016 0.11
5/12/2016 0.04
5/13/2016
5/14/2016 0.41
5/15/2016 0.00
5/16/2016
5/17/2016 0.03
5/18/2016 0.07
5/19/2016
5/20/2016
5/21/2016
5/22/2016
5/23/2016
5/24/2016
5/25/2016
5/26/2016
5/27/2016 0.16
5/28/2016
5/29/2016 0.08
5/30/2016
5/31/2016 T
6/1/2016
6/2/2016
6/3/2016
6/4/2016
6/5/2016
6/6/2016
6/7/2016
6/8/2016
6/9/2016
6/10/2016 0.15
6/11/2016
6/12/2016
6/13/2016
6/14/2016 0.75
6/15/2016 0.73
6/16/2016 0.00
6/17/2016 0.00
6/18/2016 0.00
6/19/2016 0.00
6/20/2016
6/21/2016
6/22/2016 0.53
6/23/2016 1.08
6/24/2016
6/25/2016
6/26/2016
6/27/2016
6/28/2016
6/29/2016
6/30/2016
Day of YearDaily PrcpMultiday Prcp
7/1/2016
7/2/2016
7/3/2016
7/4/2016
7/5/2016
7/6/2016 2.06
7/7/2016
7/8/2016
7/9/2016
7/10/2016
7/11/2016
7/12/2016
7/13/2016
7/14/2016 0.98
7/15/2016
7/16/2016
7/17/2016
7/18/2016
7/19/2016
7/20/2016
7/21/2016
7/22/2016 1.00
7/23/2016
7/24/2016
7/25/2016
7/26/2016
7/27/2016
7/28/2016
7/29/2016
7/30/2016
7/31/2016
8/1/2016
8/2/2016
8/3/2016
8/4/2016
8/5/2016
8/6/2016
8/7/2016
8/8/2016
8/9/2016 0.09
8/10/2016
8/11/2016
8/12/2016 **
8/13/2016 **
8/14/2016 **
8/15/2016 **
8/16/2016 3.69
8/17/2016 0.00
8/18/2016
8/19/2016 0.75
8/20/2016 T
8/21/2016
8/22/2016
8/23/2016
8/24/2016
8/25/2016 1.34
8/26/2016
8/27/2016 1.10
8/28/2016
8/29/2016 1.33
8/30/2016
8/31/2016
9/1/2016
9/2/2016
9/3/2016
9/4/2016
9/5/2016
9/6/2016
9/7/2016
9/8/2016 1.83
9/9/2016
9/10/2016 1.17
9/11/2016
9/12/2016
9/13/2016
9/14/2016
9/15/2016
9/16/2016
9/17/2016
9/18/2016
9/19/2016
9/20/2016
9/21/2016
9/22/2016
9/23/2016
9/24/2016
9/25/2016
9/26/2016
9/27/2016
9/28/2016
9/29/2016
9/30/2016



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/28/2015 7:00 AM 0.85 M M M M Rainfall totals from the event over the last 24 hours. There was a very light drizzle ongoing at observation time.
11/21/2015 8:00 AM 0.32 1.8 M 2.0 M Snowfall totals through 8 AM. Light snow at the time of measurement. There was a period of heavy snow seen early this morning.
11/22/2015 7:00 AM 0.50 2.8 M 5.0 M Between my previous observation and this one, 2.8" of new snow. This brings the storm total to 4.6" (I called in that report yesterday)
11/23/2015 7:00 AM 0.00 0.0 M 5.0 M Another chilly morning. Still plenty of snow out there.
11/24/2015 7:00 AM 0.00 0.0 M 2.5 M Snow definitely was melting yesterday.
12/27/2015 7:00 AM 1.57 M M M M Heavy rainfall totals over the last 24 hours. Ground is very soggy this morning but I did not see any flood problems ongoing in Pontiac. Will check around other areas later today.
12/28/2015 7:00 AM 0.45 M M M M Light rain and light freezing rain at observation time. There is no ice on the ground at this time, but I did notice some ice starting to form on my rain gauge. Trees and powerlines, however, are completely glazed over. Heard some arcing power lines early this morning during a strong gust of wind.
12/29/2015 7:00 AM 2.11 M M M M That was one heck of a storm! About 1/4 to 1/3 inch of freezing rain accumulated on elevated surfaces with little to no ice on ground. There was no ice this morning. The heavy rain caused some areas to flood. Vermilion River is highest it's been since 2008. Lots of tree limbs (including entire trees) and power lines were downed during the peak of the storm. Some parts of Pontiac still have no power.
12/30/2015 9:00 AM 0.04 0.4 M 0.5 M Late report... Light snow falling at time of observation. The sun is trying to show itself through the clouds! Finally
2/3/2016 7:00 AM 1.25 M M M M Heavy thunderstorms moved through the area during the afternoon yesterday. The majority of the observed amount came from those storms. Due to the frozen soils, my yard flooded, as well as some streets around Pontiac that typically pond up during heavy rains.
3/25/2016 7:00 AM 0.70 M M M M Total rainfall
3/26/2016 7:00 AM 0.00 M M M M A dry 24 hours.
3/28/2016 7:00 AM 0.32 M M M M Rather chilly this morning with a temp of 42.3 as measured by my backyard station. Some rain was observed in the later afternoon and evening yesterday.
3/29/2016 7:00 AM 0.00 0.0 M M M We've had a dry 24 hours. Another somewhat chilly morning, though not as cold as it was yesterday for sure.
3/31/2016 7:00 AM 0.18 M M M M Short periods of heavy rainfall were observed in the late afternoon and early evening yesterday. Little bit of thunder at times. 60 degrees and breezy at obs time.
4/1/2016 7:00 AM T M M M M Largely avoided by convection yesterday. A few drops of rain were observed nonetheless.
4/2/2016 7:00 AM 0.09 M M M M Total precipitation including a short period of small hail that occurred yesterday afternoon (already sent a separate report for the hail).
4/3/2016 7:00 AM 0.00 M M M M No rain, but a heck of a lot of wind over the last 24 hours!
4/19/2016 7:00 AM 0.00 0.0 M M M Dry dry dry. Hoping for some good rain soon as I have grass seed down in the yard.
4/21/2016 7:00 AM 0.49 M M M M Finally got a nice soaking rainfall! Bye bye to the omega block!
4/22/2016 7:00 AM 0.07 M M M M Much of the precip missed.
4/28/2016 7:00 AM 0.42 M M M M Cloudy and cool this morning. Had a few periods of moderate to heavy rain with some rumbles of thunder yesterday.
4/29/2016 7:00 AM 0.03 M M M M Bit of light rain yesterday evening.
5/1/2016 7:00 AM 0.75 M M M M Steady rain occurred from roughly 7 AM yesterday through about 4 PM before it turned to a period of drizzle. Cloudy skies this morning.
5/2/2016 7:00 AM 0.11 M M M M More rain showers. 46 degrees at obs time
5/4/2016 7:00 AM 0.17 M M M M 48 deg at observation time. Sun was out, ground was wet.
5/10/2016 7:35 AM 2.04 M M M M Moderate rain falling at time of observation. Didn't quite nail it at 7 AM but did finally get out there to measure just after 730. There is some ponding of water on a few nearby streets that typically experience this during heavy rainfall events. Otherwise, no serious flooding has been observed.
5/11/2016 7:00 AM 0.11 M M M M Additional precip that fell past the previous observation time. Fog is quickly burning off this morning.
5/12/2016 7:00 AM 0.04 M M M M Storms largely either dissipated or went around us... lame! Lol.
5/14/2016 7:00 AM 0.41 M M M M Cold and windy this morning.
5/15/2016 7:00 AM 0.00 0.0 M M M Not a fan of this late season cold...
5/17/2016 8:45 AM 0.03 M M M M Little late on reporting today... it was sprinkling at the time of observation.
5/18/2016 7:00 AM 0.07 M M M M Light showers occurred, mainly in the afternoon yesterday.
5/27/2016 9:30 AM 0.16 M M M M Apologies for the late report.
5/29/2016 7:00 AM 0.08 M M M M Had quite a few rumbles of thunder during the late evening.
5/31/2016 7:00 AM T M M M M Got a glancing blow from a convective shower yesterday afternoon. Rained for about 30 seconds. Didn't soak the ground or amount to anything.
6/10/2016 7:00 AM 0.15 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
6/14/2016 9:00 AM 0.75 M M M M Was woken up to loud thunder early in the morning. 3/4 inch of rain, right on the mark, was accumulated in the gauge.
6/15/2016 7:00 AM 0.73 M M M M Periods of heavy thunderstorms again. No flooding was observed here in Pontiac, though rainfall rates did get quite high, especially with the overnight storm.
6/16/2016 7:00 AM 0.00 0.0 M M M No precipitation to report this time around. It was very hot and humid yesterday. Backyard weather station clocked in a max heat index of 104 degrees yesterday afternoon.
6/17/2016 7:00 AM 0.00 0.0 M M M Another dry observation period. Much cooler yesterday. I'm thankful for warm weather but not when it gets above 90!
6/18/2016 7:00 AM 0.00 0.0 M M M Another dry 24 hours.
6/19/2016 7:00 AM 0.00 0.0 M M M Happy Father's Day to all the fathers out there!
6/22/2016 7:00 AM 0.53 M M M M Steady rain at time of observation. Few good crackles of thunder this morning.
6/23/2016 7:00 AM 1.08 M M M M Very thankful the tornado missed my house by about a half mile. Truly was a scary night.
7/6/2016 7:30 AM 2.06 M M M M Moderate rain falling at the indicated observation time. There is some field ponding ongoing on the south side of Pontiac at this time, typical during heavy rainfall events such as this one.
7/14/2016 10:00 AM 0.98 M M M M Late observation.
7/22/2016 7:00 AM 1.00 M M M M Wow, exactly on the 1" mark! Nice!
8/9/2016 7:00 AM 0.09 M M M M Some unexpected rain yesterday afternoon.
8/17/2016 7:00 AM 0.00 M M M M No precip to report at this time.
8/19/2016 8:25 AM 0.75 M M M M A good deal of wind driven rainfall as winds reached about 40 MPH during the storm.
8/20/2016 7:00 AM T M M M M Few big raindrops with some developing storms in the afternoon. Storms arriving soon this morning.
8/25/2016 9:25 AM 1.34 M M M M Pardon for the late send in.. Had two waves of action come in. One happened early on in the observation period, then another after midnight. The lightning sound like gunshots during the overnight storm!
8/27/2016 7:00 AM 1.10 M M M M Was woken up to the sound of thunder sometime during the night.
8/29/2016 8:45 AM 1.33 M M M M Wow, quite the storm system that just sat over the area! Pontiac was kind of on the edge, so lesser totals here than up north. The high rainfall rates resulted in some low lying street flooding throughout town.
9/8/2016 9:20 AM 1.83 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
9/10/2016 9:05 AM 1.17 M M M M Plenty of rain once again! (EDIT: Corrected daily precip from 1.10" to 1.17". Forgot to put in that 7! Oops.)



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
8/12/2016 8/16/2016 9:00 AM 5 3.69 M M Was not available from August 12th until today. The rain gauge was empty prior to the 12th despite the lack of daily precip reports. So this totals up from the past two major rainfall events. Some street flooding was observed during the round we had yesterday.



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
4/1/2016 4:13 PM A shower passed over a few minutes before 4:15 PM. Sprinkles/light rain started initially, but then very small hailstones became dominant within about a minute or two after the shower started. It was very short lived, lasting 4 minutes, with hailstones all being very small (less than pea sized) Rice Rice Rice Hard|White Ice 4 1min no damage Intermittent False Same time as rain Same time as smaller hail 10-20 0