Look Back at the Climate Data for June 2015 for Chicago and Rockford

Record Heat for the Intermountain West and Northern Plains; Heavy Rainfall and Severe Weather Threats

Record setting heat is expected over the next several days from the Intermountain West through the northern Plains. Furthermore, fire weather concerns increase with dry and breezy conditions. Meanwhile, heavy rainfall and severe thunderstorm threats for the Ohio/Tennessee Valleys, central Appalachians and Southeast today. The threat shifts to central Gulf Coast and across central Texas this week. Read More >

Monthly Climate Information and Stats PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 828 AM CDT MON JULY 1 2015 ...A LOOK BACK AT THE CLIMATE FOR THE MONTH OF JUNE 2015 FOR CHICAGO AND ROCKFORD... AT CHICAGO...THE AVERAGE HIGH TEMPERATURE WAS 76.9 DEGREES WHICH IS 2.8 DEGREES BELOW NORMAL. THE AVERAGE LOW TEMPERATURE WAS 57.8 DEGREES WHICH IS 0.3 DEGREES BELOW NORMAL. THE AVERAGE TEMPERATURE FOR THE MONTH WAS 67.4 DEGREES WHICH IS 1.5 DEGREES BELOW NORMAL. DURING THE MONTH OF JUNE...7.12 INCHES OF PRECIPITATION WAS RECORDED WHICH IS 3.67 INCHES ABOVE NORMAL. A TRACE OF SNOW WAS RECORDED DURING THE MONTH IN THE FORM OF HAIL. RECORDS FOR CHICAGO FOR THE MONTH OF JUNE 2015... DAILY RECORDS JUNE 15TH...SET RECORD FOR DAILY MAXIMUM RAINFALL OF 2.56 INCHES. PREVIOUS RECORD WAS 0.96 INCHES SET IN 1982. MONTHLY RECORDS JUNE 2015 WILL GO DOWN AS 9TH WETTEST JUNE ON RECORD SINCE 1871. AT ROCKFORD...THE AVERAGE HIGH TEMPERATURE WAS 79.2 DEGREES WHICH IS 1.9 DEGREES BELOW NORMAL. THE AVERAGE LOW TEMPERATURE WAS 59.3 DEGREES WHICH IS 0.8 DEGREES ABOVE NORMAL. THE AVERAGE TEMPERATURE FOR THE MONTH WAS 69.3 DEGREES WHICH IS 0.5 DEGREES BELOW NORMAL. DURING THE MONTH OF JUNE...4.64 INCHES OF PRECIPITATION WAS RECORDED WHICH IS 0.01 INCHES BELOW NORMAL. NO RECORDS FOR ROCKFORD WERE SET DURING JUNE 2015 $$

Cloudiest June on Record in Chicago PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE CHICAGO IL 438 PM CDT WED JUL 1 2015 ...JUNE 2015 WAS THE CLOUDIEST JUNE ON RECORD IN CHICAGO... IF IT FELT LIKE JUNE WAS UNUSUALLY CLOUDY IN CHICAGO...DATA FROM 3 MILES SOUTHWEST OF MIDWAY AIRPORT SHOWS THAT IT WAS. ONLY 46 PERCENT OF POSSIBLE SUNSHINE WAS OBSERVED. THIS SET A NEW RECORD FOR THE CLOUDIEST JUNE IN CHICAGO. THE PREVIOUS RECORD WAS SET BACK IN 1942 WHEN 48 PERCENT OF POSSIBLE SUNSHINE WAS OBSERVED. THE NORMAL FOR PERCENT OF POSSIBLE SUNSHINE IN JUNE IN CHICAGO IS 65 PERCENT. CLOUDIEST JUNES ON RECORD IN CHICAGO ------------------------------------ YEAR PERCENT OF POSSIBLE SUNSHINE ---- ---------------------------- 2015 46 1942 48 1928 49 1969 49 SUNSHINE RECORDS FOR CHICAGO GO BACK TO 1893. THANKS TO THE MIDWAY 3SW COOPERATIVE OBSERVER FRANK WACHOWSKI FOR KEEPING AND MAINTAINING THE SUNSHINE PERCENTAGE DATASET SINCE 1996 AND PROVIDING NWS CHICAGO THE DATA FOR THIS PNS. $$ RC