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010-011-019-020015-
PUBLIC INFORMATION STATEMENT...UPDATED
NATIONAL WEATHER SERVICE CHICAGO IL
345 PM CST THU JAN 1 2026 /445 PM EST THU JAN 1 2026/
...A LOOK BACK AT THE CLIMATE FOR THE MONTH OF DECEMBER 2025 FOR
CHICAGO AND ROCKFORD...
AT CHICAGO, THE AVERAGE HIGH TEMPERATURE WAS 34.4 DEGREES, WHICH
IS 2.2 DEGREES BELOW NORMAL. THE AVERAGE LOW TEMPERATURE WAS
19.5 DEGREES, WHICH IS 4.9 DEGREES BELOW NORMAL. THE MEAN AVERAGE
TEMPERATURE FOR THE MONTH WAS 27.0 DEGREES, WHICH IS 3.5 DEGREES
BELOW NORMAL. 2.07 INCHES OF LIQUID PRECIPITATION WERE RECORDED,
WHICH IS 0.04 INCHES BELOW NORMAL. 9.5 INCHES OF SNOW WERE
RECORDED, WHICH IS 1.9 INCHES ABOVE NORMAL.
NO DAILY OR TOP TEN MONTHLY RECORDS WERE SET FOR CHICAGO DURING
THIS PAST DECEMBER.
DECEMBER 2025 WAS THE FIRST DECEMBER SINCE 2016 TO HAVE BOTH BELOW
NORMAL TEMPERATURES AND ABOVE NORMAL SNOWFALL IN CHICAGO. DECEMBER
2016 FINISHED WITH AN AVERAGE TEMPERATURES OF 25.0 DEGREES, 5.5
DEGREES BELOW NORMAL. IT HAD 17.7 INCHES OF SNOW, 10.1 INCHES ABOVE
NORMAL FOR THE MONTH.
AT ROCKFORD, THE AVERAGE HIGH TEMPERATURE WAS 32.0 DEGREES, WHICH
IS 2.3 DEGREES BELOW NORMAL. THE AVERAGE LOW TEMPERATURE WAS
15.2 DEGREES, WHICH IS 5.0 DEGREES BELOW NORMAL. THE AVERAGE
TEMPERATURE FOR THE MONTH WAS 23.6 DEGREES, WHICH IS 3.7 DEGREES
BELOW NORMAL. 1.78 INCHES OF LIQUID PRECIPITATION WERE RECORDED,
WHICH IS 0.15 INCHES BELOW NORMAL. 9.2 INCHES OF SNOW WERE
RECORDED, WHICH IS 0.2 INCHES BELOW NORMAL.
THE FOLLOWING DAILY RECORDS WERE SET FOR ROCKFORD THIS PAST
DECEMBER:
* TIED RECORD DAILY LOW TEMPERATURE OF -4 DEGREES ON THE 4TH.
* RECORD DAILY SNOWFALL OF 4.9 INCHES ON THE 7TH.
* RECORD DAILY COLDEST HIGH TEMPERATURE OF 4 DEGREES ON THE 14TH.
NO TOP TEN MONTHLY RECORDS WERE SET FOR ROCKFORD DURING THIS PAST
DECEMBER.
..............................................................
CHICAGO'S CLIMATIC PERIOD OF RECORD DATES BACK TO:
1871 FOR PRECIPITATION
1872 FOR TEMPERATURES
1884 FOR SNOWFALL
ROCKFORD'S CLIMATIC PERIOD OF RECORD DATES BACK TO:
1905 FOR TEMPERATURES, PRECIPITATION, AND SNOWFALL
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