Station Overview Station Location
Station Number IL-CK-156 Latitude 42.103099
Station Name Arlington Heights 0.6 N Longitude -87.981425
County Cook Elevation (ft) 704



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 2.96 0.72 18 0.08 6 0.64 12 2 1 0 0.0 0 0
Nov 10 3.01 0.36 3 0.36 3 0.00 0 0 2 0 0.0 0 0
Dec 10 2.24 6.58 7 6.58 7 0.00 0 0 6 0 12.6 4 7
Jan 11 1.75 1.40 8 1.40 8 0.00 0 0 4 1 6.3 3 6
Feb 11 1.69 0.21 3 0.21 3 0.00 0 0 2 0 1.8 1 2
March 11 2.31 0.07 2 0.07 2 0.00 0 0 1 0 0.7 1 2
April 11 3.43 2.25 22 0.00 3 2.25 19 3 0 0 0.0 0 0
May 11 4.06 1.97 6 1.97 6 0.00 0 0 4 0 0.0 0 0
June 11 4.01 3.43 19 1.13 8 2.30 11 2 2 1 0.0 0 0
July 11 3.82 4.88 20 3.35 7 1.53 13 2 2 0 0.0 0 0
Aug 11 4.47 3.23 27 1.11 8 2.12 19 2 4 0 0.0 0 0
Sept 11 3.39 0.61 14 0.51 8 0.10 6 1 4 0 0.0 0 0
Water Year Totals: 37.14" 25.71" 149 days 16.77" 69 8.94" 80 days 12 32 days 2 days 21.4" 9 days 17 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 0.00
10/4/2010 **
10/5/2010 **
10/6/2010 **
10/7/2010 **
10/8/2010 **
10/9/2010 0.00 0.10
10/10/2010 0.00
10/11/2010
10/12/2010
10/13/2010
10/14/2010
10/15/2010
10/16/2010
10/17/2010 0.00
10/18/2010
10/19/2010
10/20/2010
10/21/2010
10/22/2010
10/23/2010
10/24/2010 0.08
10/25/2010 **
10/26/2010 **
10/27/2010 **
10/28/2010 **
10/29/2010 **
10/30/2010 0.00 0.54
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 0.35
11/15/2010
11/16/2010
11/17/2010
11/18/2010
11/19/2010
11/20/2010
11/21/2010 0.01
11/22/2010
11/23/2010
11/24/2010
11/25/2010
11/26/2010
11/27/2010
11/28/2010 0.00
11/29/2010
11/30/2010
12/1/2010
12/2/2010
12/3/2010
12/4/2010 4.97
12/5/2010 0.60
12/6/2010
12/7/2010
12/8/2010
12/9/2010
12/10/2010
12/11/2010 0.25
12/12/2010 0.11
12/13/2010
12/14/2010
12/15/2010
12/16/2010
12/17/2010
12/18/2010
12/19/2010 0.00
12/20/2010
12/21/2010
12/22/2010
12/23/2010
12/24/2010
12/25/2010 0.41
12/26/2010 0.24
12/27/2010
12/28/2010
12/29/2010
12/30/2010
12/31/2010
Day of YearDaily PrcpMultiday Prcp
1/1/2011 0.77
1/2/2011 0.00
1/3/2011
1/4/2011
1/5/2011
1/6/2011
1/7/2011
1/8/2011 0.13
1/9/2011 0.00
1/10/2011
1/11/2011
1/12/2011 0.30
1/13/2011
1/14/2011
1/15/2011 T
1/16/2011
1/17/2011
1/18/2011
1/19/2011
1/20/2011
1/21/2011
1/22/2011 0.20
1/23/2011 0.00
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 0.00
2/14/2011
2/15/2011
2/16/2011
2/17/2011
2/18/2011
2/19/2011
2/20/2011 0.03
2/21/2011
2/22/2011
2/23/2011
2/24/2011
2/25/2011
2/26/2011 0.18
2/27/2011
2/28/2011
3/1/2011
3/2/2011
3/3/2011
3/4/2011
3/5/2011 0.07
3/6/2011 0.00
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
3/20/2011
3/21/2011
3/22/2011
3/23/2011
3/24/2011
3/25/2011
3/26/2011
3/27/2011
3/28/2011
3/29/2011
3/30/2011
3/31/2011
Day of YearDaily PrcpMultiday Prcp
4/1/2011 **
4/2/2011 **
4/3/2011 0.00 0.40
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 0.00 1.40
4/25/2011 **
4/26/2011 **
4/27/2011 **
4/28/2011 **
4/29/2011 **
4/30/2011 0.00 0.45
5/1/2011
5/2/2011
5/3/2011
5/4/2011
5/5/2011
5/6/2011
5/7/2011 0.00
5/8/2011 0.00
5/9/2011
5/10/2011
5/11/2011
5/12/2011
5/13/2011
5/14/2011
5/15/2011 0.54
5/16/2011
5/17/2011
5/18/2011
5/19/2011
5/20/2011
5/21/2011
5/22/2011 0.05
5/23/2011
5/24/2011
5/25/2011 0.68
5/26/2011
5/27/2011 0.70
5/28/2011
5/29/2011
5/30/2011
5/31/2011
6/1/2011 1.10
6/2/2011
6/3/2011
6/4/2011 0.00
6/5/2011 0.00
6/6/2011 **
6/7/2011 **
6/8/2011 **
6/9/2011 **
6/10/2011 0.00 1.70
6/11/2011
6/12/2011 T
6/13/2011 **
6/14/2011 **
6/15/2011 **
6/16/2011 **
6/17/2011 **
6/18/2011 0.00 0.60
6/19/2011 0.00
6/20/2011
6/21/2011
6/22/2011
6/23/2011
6/24/2011
6/25/2011
6/26/2011 0.03
6/27/2011
6/28/2011
6/29/2011
6/30/2011
Day of YearDaily PrcpMultiday Prcp
7/1/2011
7/2/2011 0.00
7/3/2011 0.00
7/4/2011
7/5/2011
7/6/2011
7/7/2011
7/8/2011
7/9/2011
7/10/2011 0.00
7/11/2011 **
7/12/2011 **
7/13/2011 **
7/14/2011 **
7/15/2011 **
7/16/2011 **
7/17/2011 0.00 0.08
7/18/2011
7/19/2011
7/20/2011
7/21/2011
7/22/2011
7/23/2011 3.26
7/24/2011
7/25/2011 0.09
7/26/2011 **
7/27/2011 **
7/28/2011 **
7/29/2011 **
7/30/2011 **
7/31/2011 0.00 1.45
8/1/2011 **
8/2/2011 **
8/3/2011 **
8/4/2011 **
8/5/2011 **
8/6/2011 0.13 0.77
8/7/2011 0.03
8/8/2011
8/9/2011
8/10/2011 0.00
8/11/2011
8/12/2011 0.00
8/13/2011 0.75
8/14/2011 0.20
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 0.00 1.35
8/28/2011 0.00
8/29/2011
8/30/2011
8/31/2011
9/1/2011
9/2/2011
9/3/2011 0.03
9/4/2011 0.05
9/5/2011 **
9/6/2011 **
9/7/2011 **
9/8/2011 **
9/9/2011 **
9/10/2011 0.00 0.10
9/11/2011 0.00
9/12/2011
9/13/2011
9/14/2011
9/15/2011
9/16/2011
9/17/2011 0.00
9/18/2011 0.10
9/19/2011
9/20/2011
9/21/2011
9/22/2011
9/23/2011
9/24/2011 0.33
9/25/2011 0.00
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
10/3/2010 7:56 PM 0.00 0.0 M M M "56", "ABSOLUTELY RIDICULOUS AGAIN"!, "-13"
10/9/2010 3:50 PM 0.00 0.0 M M M "HIGH TEMP" : "85","+18", AN ****"UNBELIEVEABLE TURNAROUND FROM "LAST WEEKEND", ****"NEAR RECORD TEMPERATURES"****, HELL YEAH!!!!
10/10/2010 1:27 PM 0.00 0.0 M M M "current tempERature" AS OF "2:00" : "83", IT'S "LOOKING LIKE "WE'LL "REACH A "HIGH OF "84"-"85", "BEAUTIFUL DAY"."+17-+18"
10/17/2010 5:39 PM 0.00 0.0 M M M HIGH TEMP : "64", "E", OH MY GOD SOMETHING YOU HARDLY EVER SEE A "NORMAL DAY"
10/24/2010 7:36 PM 0.08 M M M M "BECAUSE OF "UNUSUALLY "WARM SPRING-LIKE WEATHER", WE HAD A "THUNDERSTORM" LAST NIGHT + "BRIEF RAIN SHOWER" THIS MORNING, "HOWEVER I'M PRETTY SHOCKED BECAUSE ESPECIALLY LAST NIGHT IT "RAINED PRETTY GOOD" SO I "THOUGHT WE'D HAVE "3 TIMES" THIS AMOUNT OF RAIN", HOWEVER WHILE WE "DEFINITELY NEED MORE", WE'RE "PRETTY DOWN ON "RAIN" IN "OCTOBER" SO WE "APPRECIATE THIS RAIN" CHARLIE CAHILL
10/30/2010 12:03 PM 0.00 0.0 M M M "THERE WAS "NO RAIN IN THE "LAST "24 HOURS",BUT THERE WAS "0.54 IN." "lAST TUESDAY "DURING THE "MASSIVE WINDSTORM" CHARLIE CAHILL
11/14/2010 8:27 PM 0.35 M M M M
11/21/2010 8:17 PM 0.01 M M M M "DRIZZLE"
11/28/2010 2:21 AM 0.00 0.0 M M M
12/4/2010 10:08 PM 4.97 5.0 M 5.0 M ABOUT "1 INCH MORE THAN "THEY FORECASTED" CHARLIE CAHILL
12/5/2010 6:12 PM 0.60 M M 4.4 0.60 "SNOW "SETTLED" NOT "MELTED" ".595 INCHES" AS THE "SNOW TOTAL IS NOW "4.375 IN."
12/11/2010 8:47 PM 0.25 M M 2.4 M ABOUT "2 1/2", "2.5325 IN. HAS "MELTED SINCE I REPORTED TO YOU "LAST SUNDAY" BECAUSE OF THE "RAIN".WE'RE NOW AT "2.4375 IN. OF SNOW ON THE GROUND. REPORT IS "RAIN".
12/12/2010 3:14 PM 0.11 1.1 M 3.5 M
12/19/2010 9:38 PM 0.00 0.0 M 2.4 M "we've seeN A "GOOD AMOUNT OF "SETTLING", NO "MELTING" AS THE "SNOW HAS GONE DOWN "1.0625 IN." TO "2.4375 IN." CHARLIE CAHILL
12/25/2010 6:58 AM 0.41 4.1 M 6.5 M WE'RE AT "6.468 IN. OF SNOW ON THE GROUND", SADLY WE HAD "4.068 OF SNOW FROM YESTERDAY'S STORM FOR A TOTAL ON THE GROUND OF 6 15/32 IN." CHARLIE CAHILL
12/26/2010 7:43 PM 0.24 2.4 M 8.9 M
1/1/2011 10:50 AM 0.77 M M 0.0 M ****"happily "due to THE ****"THAW WE ****"MELTED "ALL THE SNOW", HELL YEAH!!!!"****, ****"HIGH TEMP"**** : "52"**** CHARLIE CAHILL
1/2/2011 11:05 AM 0.00 0.0 M M M ****"HIGH TEMP"**** : "42", (****"SATURDAY "AM" MIDNIGHT"****)
1/8/2011 8:09 AM 0.13 1.3 M 1.3 M "SNOWED "SLIGHTLY MORE THAN "METEOROLOGISTS EXPECTED".
1/9/2011 6:12 PM 0.00 0.0 M 0.8 M "DESPITE ONLY REACHING A "HIGH TEMP OF "30" WE HAD "SOME SNOW MELT" LOSING ".53" INCHES OF SNOW + WE'RE NOW AT ".81", "30", "-2" CHARLIE CAHILL
1/12/2011 8:53 AM 0.30 3.0 M 3.8 M "3.84 inches of snow on the ground"
1/15/2011 2:23 PM T T M 3.0 M NOW THIS IS A "VERY COMPLICATED "WEATHER REPORT" BECAUSE "DESPITE THE "FACT THAT THERE WAS A "SMALL AMOUNT OF SNOW THAT FELL", DUE TO "SNOW SETTLING", WE "ACTUALLY "LOST QUITE A BIT OF SNOW", 28/32 OR "7/8 OF AN INCH" AS WE'RE DOWN TO "JUST UNDER "3 INCHES" WITH "2 31/32 IN. ON THE GROUND" CHARLIE CAHILL
1/22/2011 12:28 PM 0.20 2.0 M 5.0 M
1/23/2011 5:47 PM 0.00 0.0 M 4.7 M "5/16 IN. OF AN INCH OF SNOW "DISAPPEARED FROM SETTLING" TO DROP THE "SNOW TOTAL TO "4 11/16 IN." CHARLIE CAHILL
2/13/2011 4:01 AM 0.00 0.0 M 13.9 M 13 7/8 IN. OF SNOW "ON THE GROUND". "37", "+1"
2/20/2011 8:27 AM 0.03 M M M M ****"EXCITEDLY ALL THE ****"SNOW MELTED "DUE TO THE ****"FEBRUARY THAW"****, HELL YEAH!!!!, "NOW I DON'T "CHECK THE "RAIN GAGE "ALL THAT OFTEN"+ "EVEN THOUGH I "THOUGHT IT WAS "WARMER THAN THIS" + IT MAY HAVE BEEN "BACK EARLIER IN THE WEEK WHERE IT RAINED", IT "MAY BE FROM THE "MELTED SNOW", BUT THERE WAS THIS "BIG BLOCK OF "ICE" "STUCK IN THE "RAIN GAGE" THAT "MEASURED OUT TO ABOUT ".90" + THERE WAS A "LITTLE WATER" ON TOP OF IT FROM "RAIN THAT HAD "FALLEN THIS MORNING" SO I "ESTIMATE ABOUT ".03" CHARLIE CAHILL
2/26/2011 9:31 PM 0.18 1.8 M 1.8 M "1.83 IN. OF SNOW ON THE GROUND", ****"HOWEVER IN THE ****"HARD TO MELT AREAS OF MY YARD THAT ****"DON'T GET MUCH SUN"**** HAVE ****"3 INCHES OF SNOW ON THEM"**** ****"IN ADDITION TO THAT AT ****"9:30 TONIGHT ****"WHEN I WENT OUT"**** + ****"PER REPORTS THERE WAS ****"FREEZING DRIZZLE"**** AS THE ****"MIDDLE LEVELS OF THE ****"ATMOSPHERE HAS ****"WAMRED UP AS THE ****"WARM FRONT CAME IN + ****"RODE WARM AIR UP + OVER THE ****"COOL AIR"****
3/5/2011 11:04 PM 0.07 0.7 M 0.7 M "TRAGICALLY IT'S "MARCH" + IT'S "STILL SNOWING", WAAAAA!!!!", A "COUPLE OF SPOTS IN THE YARD HAVE A "THINNER LAYER" BUT "OVERALL IT'S THIS "LITTLE THIN COAT".
3/6/2011 8:25 PM 0.00 0.0 M 0.3 M "WHEN THE "REPORT" WAS "TAKEN "SEVERAL HOURS AGO", I "DID SOMETHING ELSE 1ST" + THEN "FELL ASLEEP IN PROCESS OF POSTING THIS "THAT'S WHY THE "STRANGE TIME DELAY", "MOST "SPOTS WERE MELTED", BUT WE HAD "3 SIGNIFICANT SPOTS OF SNOW OUT THERE", "MOST AREAS" + "MY MAIN MEASURING SPOT WAS "0", BUT THESE AREAS OF "SNOW" MEASURED ABOUT "0.25 INCHES", I TOOK CARE OF IT", I "HOPE "WE'RE DONE". CHARLIE CAHILL
4/3/2011 1:22 AM 0.00 0.0 M 0.0 M "0.40 IN. OF "OLD RAIN" FROM "SOMETIME "LAST WEEK"
4/24/2011 8:04 AM 0.00 0.0 M M M "1.4 INCHES OF "OLD RAIN" IN THE "RAIN GAGE".
4/30/2011 8:00 PM 0.00 0.0 M M M 0.45 IN. OF "OLD RAIN".
5/7/2011 7:23 PM 0.00 0.0 M M M
5/8/2011 9:13 PM 0.00 0.0 M M M HIGH TEMP : "68", "+1"
5/15/2011 3:00 AM 0.54 M M M M
5/22/2011 10:15 AM 0.05 M M M M "HIGH TEMP" : "75", "+3"
5/25/2011 10:20 PM 0.68 M M M M "HIGH TEMP" : "67"
5/27/2011 2:27 PM 0.70 M M M M "ABSOLUTELY DISGUSTING" + "RECORD SETTING"!, "HIGH TEMP" : "48", "-25", WAAAAA!!!!
6/1/2011 8:48 PM 1.10 M M M M "THERE WAS "A LOT OF RAIN" ON "TUESDAY"! "HIGH TEMP" : "81","+5"
6/4/2011 11:19 AM 0.00 0.0 M M M "HIGH TEMP" : "87"
6/5/2011 4:40 PM 0.00 0.0 M M M "HIGH TEMP" : "SUNDAY "6/5" : "83"
6/10/2011 5:28 PM 0.00 0.0 M M M
6/12/2011 12:16 AM T M M M M "THE METEOROLOGISTS LIED" IT WAS AN "ABSOLUTELY HORRIBLE DAY", RRRRR!!!!, WAAAAA!!!!, "HIGH TEMP" : "63", "-16"
6/18/2011 5:25 PM 0.00 0.0 M M M "HIGH TEMP" : "81", "NORMAL", HELL YEAH!!!! CHARLIE CAHILL
6/19/2011 6:51 PM 0.00 0.0 M M M "HIGH TEMP" : "80"?
6/26/2011 3:59 AM 0.03 M M M M "HIGH TEMP" : "79", "-4".
7/2/2011 7:07 PM 0.00 0.0 M M M "HIGH TEMP" : "94","+11"
7/3/2011 10:30 PM 0.00 0.0 M M M
7/10/2011 1:04 AM 0.00 0.0 M M M
7/17/2011 5:38 AM 0.00 0.0 M M M "0.08 IN." OF "RAIN" IN THE "RAIN GAGE" FROM "LAST MONDAY" + TUESDAY", "HIGH TEMP. : "89" CHARLIE CAHILL
7/23/2011 10:38 PM 3.26 M M M M "THIS IS "MORE THAN "DOUBLE" THE "HIGHEST AMOUNT OF "RAIN" I'VE "EVER RECORDED", "WOW"!,"WHILE THERE WAS "NOTHING DIRECTLY AROUND OUR "REPORTING SITE", "OUR HOUSE", "HOWEVER IN "OUR SUBURB" + THE "SUBURB" JUST TO THE "EAST OF US" IN "SOME SPOTS" THERE WAS "SIGNIFICANT FLOODING"., "85" CHARLIE CAHILL
7/25/2011 12:00 AM 0.09 M M M M "HIGH TEMP" : "86"
7/31/2011 9:31 PM 0.00 0.0 M M M
8/6/2011 4:14 PM 0.13 M M M M I "ESTIMATED THIS "AMOUNT "BASED ON THE "COCORAHS REPORTS AROUND THE AREA" TO BE "0.13" I HAD "0.90" IN MY "RAIN GAGE" BUT "MOST OF THAT "RAIN IS FROM "TUESDAY/ WEDNESDAY".
8/7/2011 4:47 PM 0.03 M M M M "I'M "GOING TO HAVE TO "REPORT ON THIS "RAIN LATER", "NOTE : "JUST AFTER "OBSERVATION", "5:11 P.M.", 'STARTED "RAINING "PRETTY GOOD"."HIGH TEMP" : "86"
8/10/2011 8:20 PM 0.00 0.0 M M M
8/12/2011 8:09 PM 0.00 0.0 M M M
8/13/2011 8:53 PM 0.75 M M M M
8/14/2011 2:36 PM 0.20 M M M M
8/27/2011 5:27 PM 0.00 0.0 M M M "1.35 INCHES OF "OLD RAIN" IN THE "RAIN GAGE". CHARLIE CAHILL
8/28/2011 3:19 PM 0.00 0.0 M M M
9/3/2011 1:14 PM 0.03 M M M M
9/4/2011 1:38 PM 0.05 M M M M
9/10/2011 4:33 PM 0.00 0.0 M M M "THERE WAS ".10 INCHES OF RAIN" IN THE "RAIN GAGE" FROM "FRIDAY NIGHT" IT WILL BE "REFLECTED IN THE "MULTI-DAY PRECIPITATION REPORT". CHARLIE CAHILL
9/11/2011 7:07 PM 0.00 0.0 M M M
9/17/2011 3:33 PM 0.00 0.0 M M M
9/18/2011 5:11 PM 0.10 M M M M
9/24/2011 4:14 PM 0.33 M M M M
9/25/2011 9:33 PM 0.00 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/4/2010 10/09/2010 3:50 PM 6 0.10 M M
10/25/2010 10/30/2010 12:03 PM 6 0.54 M M "THE ".54 IN. OF RAIN" IS "FROM LAST "TUESDAY'S "MASSIVE WINDSTORM" CHARLIE CAHILL
4/1/2011 4/03/2011 1:22 AM 3 0.40 M M "RAIN FROM "FRIDAY".
4/15/2011 4/24/2011 8:04 AM 10 1.40 M M
4/25/2011 4/30/2011 8:00 PM 6 0.45 M M
6/6/2011 6/10/2011 5:28 PM 5 1.70 M M
6/13/2011 6/18/2011 5:25 PM 6 0.60 M M
7/11/2011 7/17/2011 5:38 AM 7 0.08 M M THE "RAIN FELL" N "MONDAY "7/11" + "TUESDAY "7/12"
7/26/2011 7/31/2011 9:31 PM 6 1.45 M M
8/1/2011 8/06/2011 4:14 PM 6 0.77 M M
8/15/2011 8/27/2011 5:29 PM 13 1.35 M M
9/5/2011 9/10/2011 4:33 PM 6 0.10 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