National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
CXUS53 KLOT 011912
CLSRFD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
112 PM CST FRI DEC 01 2023

...................................

...THE ROCKFORD IL CLIMATE SUMMARY FOR THE SEASON, FROM
9/1/2023 TO 11/30/2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1905 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            103   09/07/1939
 LOW             -10   11/26/1977
HIGHEST           92   09/03                          90  09/20
                       09/04
LOWEST            12   11/28                          11  11/20
AVG. MAXIMUM    63.3               61.6     1.7     63.2
AVG. MINIMUM    42.5               42.0     0.5     40.7
MEAN            52.9               51.8     1.1     52.0
DAYS MAX >= 90     2                2.0     0.0        1
DAYS MAX <= 32     3                3.0     0.0        3
DAYS MIN <= 32    26               23.5     2.5       29
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       21.56   1961
 MINIMUM        3.05   1956
TOTALS          7.86               8.52   -0.66     8.82
DAILY AVG.      0.09               0.09   -0.00     0.10
DAYS >= .01       26               26.8    -0.8       21
DAYS >= .10       17               15.7     1.3       12
DAYS >= .50        2                5.5    -3.5        4
DAYS >= 1.00       1                2.0    -1.0        1
GREATEST
 24 HR. TOTAL   2.90   10/13 TO 10/14               4.46

SNOWFALL (INCHES)
RECORDS
 TOTAL          15.8   2018
TOTALS           1.5                2.5    -1.0      2.3
SINCE 7/1        1.5                2.5    -1.0      5.6
DAYS >= 1.0        1                1.0     0.0        1
GREATEST
 SNOW DEPTH        1   11/27                           1  11/15
                       11/28
                       11/29
                                                          11/15
 24 HR TOTAL     1.5   11/26 TO 11/27                1.3

DEGREE DAYS
HEATING TOTAL   1214               1305     -91     1274
 SINCE 7/1      1217               1317    -100     2472
COOLING TOTAL    132                100      32      110
 SINCE 1/1       805                839     -34      978
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.3
HIGHEST WIND SPEED/DIRECTION    33/200    DATE  10/24
HIGHEST GUST SPEED/DIRECTION    44/220    DATE  10/24

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.59
NUMBER OF DAYS FAIR           18
NUMBER OF DAYS PC             40
NUMBER OF DAYS CLOUDY         33

AVERAGE RH (PERCENT)     71

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              8     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                      10
LIGHT RAIN               34     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                5     SLEET                      0
FOG                      41     FOG W/VIS <= 1/4 MILE      2
HAZE                      3

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$