June 2017 Climate Review

Overview & Graphics
Monthly Summary
Events

Overview & Graphics

June 2017 featured above normal temperatures on average, driven by a hot and dry first half of the month. Rainfall varied greatly, with well above normal amounts along and north of I-90 and from portions of east central Illinois into northwest Indiana south of the Kankakee River. Elsewhere, rainfall amounts for the month were near to below normal. The most impacting heavy rainfall event of the month occurred on June 28th, when 3-6" of rain fell during the evening hours across Winnebago and Boone counties, resulting in widespread extreme flash flooding

June 2017 Review: Precipitation and Temperatures

Chicago and Rockford Monthly Summary

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
912 AM CDT Sat Jul 1 2017

...A Look Back at the Climate for the Month of June 2017 for Chicago
and Rockford...

At Chicago, the average high temperature was 83.3 degrees, which is
3.6 degrees above normal. The average low temperature was 61.6
degrees, which is 3.5 degrees above normal. The average temperature
for the month was 72.4 degrees which is 3.5 degrees above normal.
During the month of June, 3.44 inches of precipitation were
recorded, which is 0.01 of an inch below normal. A trace of snow
was recorded, which is normal.

One record was set for Chicago for the month of June 2017:
* Record daily precipitation of 1.3 inches on the 28th.

At Rockford, the average high temperature was 83.3 degrees, which is
2.2 degrees above normal. The average low temperature was 59.6
degrees, which is 1.1 degree above normal. The average temperature
for the month was 71.5 degrees, which is 1.7 degree above normal.
During the month of June, 7.49 inches of precipitation were
recorded, which is 2.84 inches above normal. No snow was recorded,
which is normal.

There were 3 records for Rockford for the month of June 2017:
* Record daily highest mimimum temperature of 73 degrees on the 11th.
* Record daily highest minimum temperature of 72 degrees on the 12th.
* Record daily rainfall of 4.11 inches on the 28th.

$$

Monthly Climate Report: Chicago | Rockford

Events

June 28, 2017: Significant flash flooding in Rockford and Belvidere, with two EF-1 tornadoes in Boone County

June 17, 2017: Scattered wind damage and three inches of rain across parts of Livingston and Ford Counties

June 14, 2017: Storms bring scattered wind damage and near three inches of rain to parts of northern IL

NWS Chicago Science and Past Events Page