Station Overview Station Location
Station Number IL-KN-118 Latitude 42.095
Station Name Sleepy Hollow 0.7 W Longitude -88.3279
County Kane Elevation (ft) 843



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 16 2.94 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Nov 16 2.97 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Dec 16 2.10 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 17 1.57 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Feb 17 1.53 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
March 17 2.24 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
April 17 3.53 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
May 17 4.19 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
June 17 3.99 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
July 17 3.80 9.13 21 9.13 21 0.00 0 0 8 0 0.0 0 0
Aug 17 4.71 2.13 31 2.13 31 0.00 0 0 8 1 0.0 0 0
Sept 17 3.34 0.25 30 0.25 30 0.00 0 0 4 0 0.0 0 0
Water Year Totals: 36.91" 11.51" 82 days 11.51" 82 0.00" 0 days 0 20 days 1 days 0.0" 0 days 0 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
10/1/2016
10/2/2016
10/3/2016
10/4/2016
10/5/2016
10/6/2016
10/7/2016
10/8/2016
10/9/2016
10/10/2016
10/11/2016
10/12/2016
10/13/2016
10/14/2016
10/15/2016
10/16/2016
10/17/2016
10/18/2016
10/19/2016
10/20/2016
10/21/2016
10/22/2016
10/23/2016
10/24/2016
10/25/2016
10/26/2016
10/27/2016
10/28/2016
10/29/2016
10/30/2016
10/31/2016
11/1/2016
11/2/2016
11/3/2016
11/4/2016
11/5/2016
11/6/2016
11/7/2016
11/8/2016
11/9/2016
11/10/2016
11/11/2016
11/12/2016
11/13/2016
11/14/2016
11/15/2016
11/16/2016
11/17/2016
11/18/2016
11/19/2016
11/20/2016
11/21/2016
11/22/2016
11/23/2016
11/24/2016
11/25/2016
11/26/2016
11/27/2016
11/28/2016
11/29/2016
11/30/2016
12/1/2016
12/2/2016
12/3/2016
12/4/2016
12/5/2016
12/6/2016
12/7/2016
12/8/2016
12/9/2016
12/10/2016
12/11/2016
12/12/2016
12/13/2016
12/14/2016
12/15/2016
12/16/2016
12/17/2016
12/18/2016
12/19/2016
12/20/2016
12/21/2016
12/22/2016
12/23/2016
12/24/2016
12/25/2016
12/26/2016
12/27/2016
12/28/2016
12/29/2016
12/30/2016
12/31/2016
Day of YearDaily PrcpMultiday Prcp
1/1/2017
1/2/2017
1/3/2017
1/4/2017
1/5/2017
1/6/2017
1/7/2017
1/8/2017
1/9/2017
1/10/2017
1/11/2017
1/12/2017
1/13/2017
1/14/2017
1/15/2017
1/16/2017
1/17/2017
1/18/2017
1/19/2017
1/20/2017
1/21/2017
1/22/2017
1/23/2017
1/24/2017
1/25/2017
1/26/2017
1/27/2017
1/28/2017
1/29/2017
1/30/2017
1/31/2017
2/1/2017
2/2/2017
2/3/2017
2/4/2017
2/5/2017
2/6/2017
2/7/2017
2/8/2017
2/9/2017
2/10/2017
2/11/2017
2/12/2017
2/13/2017
2/14/2017
2/15/2017
2/16/2017
2/17/2017
2/18/2017
2/19/2017
2/20/2017
2/21/2017
2/22/2017
2/23/2017
2/24/2017
2/25/2017
2/26/2017
2/27/2017
2/28/2017
3/1/2017
3/2/2017
3/3/2017
3/4/2017
3/5/2017
3/6/2017
3/7/2017
3/8/2017
3/9/2017
3/10/2017
3/11/2017
3/12/2017
3/13/2017
3/14/2017
3/15/2017
3/16/2017
3/17/2017
3/18/2017
3/19/2017
3/20/2017
3/21/2017
3/22/2017
3/23/2017
3/24/2017
3/25/2017
3/26/2017
3/27/2017
3/28/2017
3/29/2017
3/30/2017
3/31/2017
Day of YearDaily PrcpMultiday Prcp
4/1/2017
4/2/2017
4/3/2017
4/4/2017
4/5/2017
4/6/2017
4/7/2017
4/8/2017
4/9/2017
4/10/2017
4/11/2017
4/12/2017
4/13/2017
4/14/2017
4/15/2017
4/16/2017
4/17/2017
4/18/2017
4/19/2017
4/20/2017
4/21/2017
4/22/2017
4/23/2017
4/24/2017
4/25/2017
4/26/2017
4/27/2017
4/28/2017
4/29/2017
4/30/2017
5/1/2017
5/2/2017
5/3/2017
5/4/2017
5/5/2017
5/6/2017
5/7/2017
5/8/2017
5/9/2017
5/10/2017
5/11/2017
5/12/2017
5/13/2017
5/14/2017
5/15/2017
5/16/2017
5/17/2017
5/18/2017
5/19/2017
5/20/2017
5/21/2017
5/22/2017
5/23/2017
5/24/2017
5/25/2017
5/26/2017
5/27/2017
5/28/2017
5/29/2017
5/30/2017
5/31/2017
6/1/2017
6/2/2017
6/3/2017
6/4/2017
6/5/2017
6/6/2017
6/7/2017
6/8/2017
6/9/2017
6/10/2017
6/11/2017
6/12/2017
6/13/2017
6/14/2017
6/15/2017
6/16/2017
6/17/2017
6/18/2017
6/19/2017
6/20/2017
6/21/2017
6/22/2017
6/23/2017
6/24/2017
6/25/2017
6/26/2017
6/27/2017
6/28/2017
6/29/2017
6/30/2017
Day of YearDaily PrcpMultiday Prcp
7/1/2017
7/2/2017
7/3/2017
7/4/2017
7/5/2017
7/6/2017
7/7/2017
7/8/2017
7/9/2017
7/10/2017
7/11/2017 0.09
7/12/2017 3.01
7/13/2017 1.84
7/14/2017 0.00
7/15/2017 0.00
7/16/2017 0.00
7/17/2017 0.00
7/18/2017 0.00
7/19/2017 0.00
7/20/2017 1.31
7/21/2017 0.00
7/22/2017 1.97
7/23/2017 0.05
7/24/2017 0.79
7/25/2017 0.00
7/26/2017 0.00
7/27/2017 0.07
7/28/2017 0.00
7/29/2017 0.00
7/30/2017 0.00
7/31/2017 0.00
8/1/2017 0.00
8/2/2017 0.00
8/3/2017 0.00
8/4/2017 0.11
8/5/2017 0.00
8/6/2017 0.00
8/7/2017 0.00
8/8/2017 0.00
8/9/2017 0.00
8/10/2017 0.00
8/11/2017 0.29
8/12/2017 0.00
8/13/2017 0.00
8/14/2017 0.00
8/15/2017 0.00
8/16/2017 0.00
8/17/2017 1.24
8/18/2017 0.06
8/19/2017 0.00
8/20/2017 0.00
8/21/2017 T
8/22/2017 0.04
8/23/2017 0.00
8/24/2017 0.00
8/25/2017 0.00
8/26/2017 0.00
8/27/2017 0.02
8/28/2017 0.08
8/29/2017 0.29
8/30/2017 0.00
8/31/2017 0.00
9/1/2017 0.00
9/2/2017 0.00
9/3/2017 0.21
9/4/2017 0.00
9/5/2017 0.00
9/6/2017 0.00
9/7/2017 0.01
9/8/2017 0.00
9/9/2017 0.00
9/10/2017 0.00
9/11/2017 0.00
9/12/2017 0.00
9/13/2017 0.00
9/14/2017 0.00
9/15/2017 0.00
9/16/2017 0.00
9/17/2017 0.00
9/18/2017 0.00
9/19/2017 0.01
9/20/2017 0.02
9/21/2017 0.00
9/22/2017 0.00
9/23/2017 0.00
9/24/2017 0.00
9/25/2017 0.00
9/26/2017 0.00
9/27/2017 0.00
9/28/2017 0.00
9/29/2017 0.00
9/30/2017 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
7/11/2017 7:00 AM 0.09 M M M M From automated gauge. Post frontal rain from 05:00 storm yesterday (7/10/17). Storm existed from about 04:15 - 07:00 on 7/10/17.
7/12/2017 7:00 AM 3.01 M M M M From automated rain gauge. Required rain gauge on order. The 3.01" fell between 21:43 last evening and 05:00 this morning. At 23:25 last night we were at 2.82" and it was still raining when I went to bed.
7/13/2017 7:00 AM 1.84 M M M M Automated gauge reading. Downpour started at 09:30 and 19 minutes later (09:49)we had already recorded 1.06 inches.
7/14/2017 7:00 AM 0.00 0.0 M M M
7/15/2017 7:00 AM 0.00 0.0 M M M
7/16/2017 7:00 AM 0.00 0.0 M M M Hard to believe....Storm coming from the north died before getting to us and we did not get a single drop of rain out of it. Currently - Automated gauge reading
7/17/2017 7:00 AM 0.00 0.0 M M M Dry again today. Automated rain gauge.
7/18/2017 7:00 AM 0.00 0.0 M M M
7/19/2017 7:00 AM 0.00 0.0 M M M
7/20/2017 7:45 AM 1.31 M M M M 0.30 before midnight - Wednesday night storm. 1.31 for days total. Pouring down rain at 07:00 thus late reading (07:45).
7/21/2017 7:30 AM 0.00 0.0 M M M Trace.
7/22/2017 7:00 AM 1.97 M M M M 0.71 fell between 15:56 and 16:30 CDT (7/21/17) in a severe level thunderstorm. The remaining 1.26 fell between 21:00 CDT (7/21/17) and 07:00 CDT this morning (7/22/17).
7/23/2017 7:00 AM 0.05 M M M M
7/24/2017 7:10 AM 0.79 M M M M All rain fell between 16:07 CDT and 16:50 CDT (7/23/17) with pea to nickel sized hail falling between 16:07 and 16:10 when the sky opened up for a downpour. Hail report submitted yesterday.
7/25/2017 7:00 AM 0.00 0.0 M M M
7/26/2017 7:00 AM 0.00 0.0 M M M
7/27/2017 7:09 AM 0.07 M M M M Showers late last evening, early this morning.
7/28/2017 7:10 AM 0.00 0.0 M M M
7/29/2017 7:00 AM 0.00 0.0 M M M
7/30/2017 6:43 AM 0.00 0.0 M M M
7/31/2017 7:35 AM 0.00 0.0 M M M
8/1/2017 7:45 AM 0.00 0.0 M M M
8/2/2017 7:44 AM 0.00 0.0 M M M
8/3/2017 7:00 AM 0.00 0.0 M M M
8/4/2017 7:30 AM 0.11 M M M M
8/5/2017 7:00 AM 0.00 0.0 M M M
8/6/2017 7:22 AM 0.00 0.0 M M M
8/7/2017 7:27 AM 0.00 0.0 M M M
8/8/2017 7:00 AM 0.00 0.0 M M M
8/9/2017 7:00 AM 0.00 0.0 M M M
8/10/2017 7:00 AM 0.00 0.0 M M M No rain in past 24 hours (as of 07:00) but expect rain within next hour or so (radar indicated).
8/11/2017 5:43 AM 0.29 M M M M All rain between 17:33 and 18:40 last evening. Storms all around us, we got mostly NOISE.
8/12/2017 6:48 AM 0.00 0.0 M M M
8/13/2017 7:00 AM 0.00 0.0 M M M
8/14/2017 5:53 AM 0.00 0.0 M M M
8/15/2017 6:54 AM 0.00 0.0 M M M Dew yes, rain no.... Showers showing in the area on radar but nothing here yet.
8/16/2017 7:10 AM 0.00 0.0 M M M Baro 30.03, Temp 62.9, RH 81% DP 56.6 Looking for rain today, ground dry and like a rock.
8/17/2017 7:00 AM 1.24 M M M M Baro 29.82, 66.7 F, 82% RH, 60.8 DP Between 16:00 and 18:00 yesterday, we had had 0.15" of rain showers. At 22:01 last evening we were greeted with a very loud clap of thunder followed by steady but rather heavy rain until around 22:37 at which time it diminished to almost nothing overnight. As of report time this morning, the rain track appears on radar to be east of Kane Co., over Cook, DuPage and Will counties and moving out over the lake toward the north/northeast.
8/18/2017 7:00 AM 0.06 M M M M Baro 29.85, 63.6 F, 72% RH, 54.3 DP Had a shower yesterday amounting to 0.05" of rain, then had a passing cloud sometime during the night that deposited an additional 0.01" (almost not worth the effort of that cloud).
8/19/2017 7:05 AM 0.00 0.0 M M M Baro 30.00, 60.2 F, 95% RH, 58.6 DP No rain, blue sky, but gauge was so fogged over with dew, had to pull the inner tube to make sure there hadn't been any rain overnight. Wet shoes !!
8/20/2017 7:08 AM 0.00 0.0 M M M Baro 30.06, 61.1 F, 95% RH, 59.5 DP High thin cloud, almost milky (1% milk - bluish). GR2A Radar interesting but has more ground clutter than factual data.
8/21/2017 8:00 AM T M M M M Baro 30.09, 73.2 F, 84% RH, 68.0 DP The trace occurred between 17:15 and 17:30 last evening. Went outside to water plants and felt rain. Not enough to wet the ground, just enough to mess up my glasses. Funnel on gauge had droplets but nothing in the bottom of the tube at the time. Still dry this morning.
8/22/2017 7:00 AM 0.04 M M M M Baro 29.91, 68.9 F, 83% RH, 63.5 DP, Calm
8/23/2017 7:15 AM 0.00 0.0 M M M Baro 30.06, 57.7 F, 77% RH, 50.5 DP Bluebird skies
8/24/2017 7:00 AM 0.00 0.0 M M M Baro 30.11, 55.9 F, 87% RH, 51.9 DP PC skies
8/25/2017 8:00 AM 0.00 0.0 M M M Baro 30.06, 53.9 F, 90% RH, 51.0 DP Severe Clear skies.
8/26/2017 6:00 AM 0.00 0.0 M M M Baro 30.29 Steady past 24 Hr, 55.5 F, 91% RH, 53.0 DP Overcast skies
8/27/2017 6:05 AM 0.02 M M M M Baro 30.14 Falling, 56.6 F, 88% RH, 53.0 FP, Calm. Clear blue sky overhead, heavy clouds to west/southwest, on their way in. *** Measurement taken a little early (06:05) to reflect the rain showers that came through between 17:30 and 21:30 last evening. Rain is about an hour west of us (radar indicated) at the time of this report and that rain will go on the report for tomorrow morning.
8/28/2017 7:30 AM 0.08 M M M M Baro 30.06, 63.6 F, 95% RH, 62.2 DP, Mostly Clear Skies The .08" of rain fell between 07:00 & 10:30 yesterday morning. Although there was rain in the area, we didn't get a drop last night. Moisture laden clouds to the south and to the east of us, but very few overhead.
8/29/2017 7:00 AM 0.29 M M M M Baro 30.09 Steady, 61.3 F, 95% RH, 59.7 DP, Wind Calm, Clear skies. Rain fell between 17:40 and 19:45 last evening.
8/30/2017 5:00 AM 0.00 0.0 M M M Baro 30.09, 56.4 F, 95% RH, 54.8 DP, Fog Rain avoided us all day yesterday. Watched several cells moving south toward us on radar, but they never made it this far.
8/31/2017 6:30 AM 0.00 0.0 M M M Baro 30.17 Raising Slowly, 61.1 F, 42% RH, 37.5 DP. Very high thin cloud, almost milky (with skim milk), more blue than white.
9/1/2017 7:00 AM 0.00 0.0 M M M Baro 30.23 Steady, 53.0 F, 89% RH, 49.8 DP, Mostly Clear. Seeing high thin bands of clouds (or smoke) to the north but otherwise blue skies.
9/2/2017 7:00 AM 0.00 0.0 M M M Baro 30.11 Falling Slightly, 45.3 F, 95% RH, 43.8 DP, Sky Clear. Brrrrr! It's chilly out there.
9/3/2017 7:00 AM 0.21 M M M M Baro 30.03, 55.9 F, 95% RH, 54.3 DP, Calm and Clear. All rain fell after 18:25 CDT last evening when a narrow band went over. Noticed at about 19:10 that rain had stopped completely.
9/4/2017 7:00 AM 0.00 0.0 M M M Baro 29.82 Falling, 65.4 F, 63% RH, 52.1 DP,PC with thin clouds....heavier to northwest.
9/5/2017 7:00 AM 0.00 0.0 M M M Baro 29.91 Steady past 4 hrs., 50.7 F, 88% RH, 47.1 DP, Clear.
9/6/2017 7:00 AM 0.00 0.0 M M M Baro 30.03 Steady, 46.7 F, 94% RH, 45.1 DP, Clear overhead.
9/7/2017 7:00 AM 0.01 M M M M Baro 30.06 Steady, 49.1 F, 50% RH, 31.3 DP, High OC. Tightly packed Cumulus Mackerel cloud formations in northwestern skies, (unusual). Wish I could post a photo, took several. Rained briefly last evening around 18:30 CDT, barely enough to wet the pavement.
9/8/2017 7:00 AM 0.00 0.0 M M M Baro 30.17 Raising, 55.0 F, 46% RH, 34.5 DP, Overcast.
9/9/2017 7:00 AM 0.00 0.0 M M M Baro 30.41, 50.7 F, 95% RH, 48.3 DP, Calm and Clear
9/10/2017 7:00 AM 0.00 0.0 M M M Baro 30.47, 45.8 F, 90% RH, 43.1 DP, Calm and Clear.
9/11/2017 6:25 AM 0.00 0.0 M M M Baro 30.32, 45.8 F, 95% RH, 44.4 DP, Clear and Calm. Grass wet with dew.
9/12/2017 7:30 AM 0.00 0.0 M M M Baro 30.06, 49.1 F, 92% RH, 46.9 DP, Calm with very high and thin IRMA clouds starting to show.
9/13/2017 6:50 AM 0.00 0.0 M M M Baro 29.82 Steady past 4 hrs., 56.8 F, 93% RH, 54.6 DP, Calm and foggy. Fog not dense, at least 3/4 mile vis.
9/14/2017 7:00 AM 0.00 0.0 M M M Baro 29.88 Steady, 60.2 F, 92% RH, 58.1 DP, High thin cloud, calm and slightly foggy, vis greater than 1/2 mile.
9/15/2017 6:15 AM 0.00 0.0 M M M Baro 30.03 Raising slowly, 57.9 F, 89% RH, 54.6 DP, Clear and Calm.
9/16/2017 6:55 AM 0.00 0.0 M M M Baro 30.09 Steady, 60.9 F, 89% RH, 57.5 DP, Calm and Clear
9/17/2017 7:00 AM 0.00 0.0 M M M Baro 30.09 Steady, 67.1 F, 82% RH, 61.1 DP, Calm & Partly Cloudy....Dense clouds to west and northwest.
9/18/2017 7:00 AM 0.00 0.0 M M M Baro 30.14, 51.4 F, 90% RH, 48.3 DP, Calm with very high and thin Cirrus clouds.
9/19/2017 7:00 AM 0.01 M M M M Baro 29.97 Falling slowly, steady past 4 hours, 62.7 F, 94% RH, 60.9 DP, Calm and PC. Need much more rain than the 0.01" that we got.
9/20/2017 7:00 AM 0.02 M M M M Baro 29.94 Steady, 61.1 F, 94% RH, 59.3 DP. Clear and Calm. Heavy dew on grass and gauge. Measured rain was from yesterday morning, after 7AM but before noon.
9/21/2017 7:00 AM 0.00 0.0 M M M Baro 30.00 Steady last 8 hours, 69.0 F, 89% RH, 65.6 DP. Wind calm, sky - high thin cloud (mostly clear) overhead, thicker clouds on west/southwest horizon.
9/22/2017 7:40 AM 0.00 0.0 M M M Baro. 30.09 Steady past 8 hours, 71.2 F, 92% RH, 68.7 DP, Mostly clear, some clouds out over Lake Michigan (to East)[observed from 5th floor of building nearby].
9/23/2017 7:27 AM 0.00 0.0 M M M Baro 30.11, 68.9 F, 88%, RH, 64.9 DP, Calm and Mostly Cloudy.
9/24/2017 7:00 AM 0.00 0.0 M M M Baro 30.11 Steady, 64.5 F, 93% RH, 62.4 DP, Clear and Calm.
9/25/2017 7:30 AM 0.00 0.0 M M M Baro 30.06 Steady, 64.0 F, 85% RH, 59.3 DP, Calm and PC. Clouds on western horizon look promising for some rain, but NO....not for us!
9/26/2017 7:00 AM 0.00 0.0 M M M Baro 29.97 Steady, 65.8 F, 80% RH, 59.3 DP, Calm and PC
9/27/2017 7:30 AM 0.00 0.0 M M M Baro 30.11 Raising, 59.0 F, 73% RH,50.1 DP, Wind NNW @ 3, PC overhead, Mostly cloudy to west and northwest. No rain here yesterday afternoon but east of IL 25 in Elgin had downpour for several minutes yesterday.
9/28/2017 6:55 AM 0.00 0.0 M M M Baro 30.23 Raising, 45.6 F, 94% RH, 44.0 DP, Calm & Clear.
9/29/2017 7:30 AM 0.00 0.0 M M M Baro 30.17 Steady, 54.1 F, 83% RH, 49.1 DP, Clear 7 NW @ 3 mph.
9/30/2017 6:35 AM 0.00 0.0 M M M Baro 30.41 Slowly Raising, 45.1 F, 95% RH, 43.7 DP, Calm and Clear.



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes



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
7/23/2017 4:07 PM Sudden storm....no hail pad. Hail bouncing 6-8" on impact. Heavy rain came in immediately behind hail's ending. 7/8" Nickel Size 3/8" 1/4" Pea Size Hard|White Ice 3 no damage Continuous False Same time as rain After smaller hail