Climatological Report (Monthly)
Issued by NWS Chicago, IL

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209
CXUS53 KLOT 011650
CLMRFD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1150 AM CDT WED APR 01 2026

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

...THE ROCKFORD IL CLIMATE SUMMARY FOR THE MONTH OF MARCH 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1905 TO 2026

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             85   03/29/1986
 LOW             -11   03/03/2014
                       03/04/2002
                       03/01/1962
HIGHEST           82   03/30                          80  03/28
                                                          03/14
LOWEST             7   03/17                          12  03/02
AVG. MAXIMUM    54.4               46.5     7.9     54.8
AVG. MINIMUM    30.6               28.1     2.5     31.0
MEAN            42.5               37.3     5.2     42.9
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     2                4.0    -2.0        1
DAYS MIN <= 32    18               21.9    -3.9       20
DAYS MIN <= 0      0                0.4    -0.4        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        6.20   1944
 MINIMUM        0.27   1910
TOTALS          3.06               2.40    0.66     2.82
DAILY AVG.      0.10               0.08    0.02     0.09
DAYS >= .01       13               10.8     2.2       10
DAYS >= .10        6                5.3     0.7        8
DAYS >= .50        2                1.2     0.8        2
DAYS >= 1.00       2                0.5     1.5        0
GREATEST
 24 HR. TOTAL   1.38   03/06 TO 03/07               0.92

SNOWFALL (INCHES)
RECORDS
 TOTAL          22.7   1964
TOTALS           6.8                4.9     1.9      4.2
SINCE 7/1       30.8               36.2    -5.4       MM
SNOWDEPTH AVG.     1                                   0
DAYS >= 1.0        2                1.0     1.0        1
GREATEST
 SNOW DEPTH        6   03/17                           3  03/16
                       03/18
 24 HR TOTAL     5.7   03/15 TO 03/16                4.1

DEGREE DAYS
HEATING TOTAL    689                860    -171      677
 SINCE 7/1      5513               5787    -274       MM
COOLING TOTAL      0                  2      -2        0
 SINCE 1/1         0                  2      -2       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              10.0
HIGHEST WIND SPEED/DIRECTION    44/200    DATE  03/13
HIGHEST GUST SPEED/DIRECTION    62/200    DATE  03/13

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.72
NUMBER OF DAYS FAIR            1
NUMBER OF DAYS PC             13
NUMBER OF DAYS CLOUDY         17

AVERAGE RH (PERCENT)     66

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              8     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       5
LIGHT RAIN               10     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                1     SNOW                       2
LIGHT SNOW                7     SLEET                      0
FOG                      17     FOG W/VIS <= 1/4 MILE      3
HAZE                      7

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

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