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CXUS53 KLOT 011554
CLMORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
954 AM CST SAT FEB 01 2025

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             67   01/25/1950
 LOW             -27   01/20/1985
HIGHEST           50   01/30                          41  01/27
                                                          01/30
LOWEST            -8   01/21                         -10  01/14
                                                          01/15
AVG. MAXIMUM    29.8               31.6    -1.8     30.7
AVG. MINIMUM    15.5               18.8    -3.3     21.8
MEAN            22.6               25.2    -2.6     26.3
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32    20               17.0     3.0        9
DAYS MIN <= 32    29               28.1     0.9       22
DAYS MIN <= 0      3                3.5    -0.5        3

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        4.84   1916
 MINIMUM        0.10   1981
TOTALS          1.98               1.99   -0.01     3.50
DAILY AVG.      0.06               0.06   -0.00     0.11
DAYS >= .01       10               11.0    -1.0       17
DAYS >= .10        3                5.2    -2.2        7
DAYS >= .50        2                1.1     0.9        2
DAYS >= 1.00       1                0.1     0.9        0
GREATEST
 24 HR. TOTAL   1.75   01/30 TO 01/31               1.00

SNOWFALL (INCHES)
RECORDS
 TOTAL          42.5   1918
TOTALS           4.6               11.3    -6.7     16.1
SINCE 7/1        9.9               20.9   -11.0       MM
SNOWDEPTH AVG.     0                                   2
DAYS >= 1.0        1                4.0    -3.0        5
GREATEST
 SNOW DEPTH        2   01/11                           5  01/13
                                                          01/19
 24 HR TOTAL     2.2   01/10 TO 01/10                5.7

DEGREE DAYS
HEATING TOTAL   1306               1234      72     1193
 SINCE 7/1      3086               3448    -362       MM
COOLING TOTAL      0                  0       0        0
 SINCE 1/1         0                  0       0       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              11.0
HIGHEST WIND SPEED/DIRECTION    36/020    DATE  01/31
HIGHEST GUST SPEED/DIRECTION    45/020    DATE  01/31

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.59
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC             17
NUMBER OF DAYS CLOUDY         10

AVERAGE RH (PERCENT)     63

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       2
LIGHT RAIN                2     FREEZING RAIN              0
LT FREEZING RAIN          2     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW               15     SLEET                      0
FOG                      13     FOG W/VIS <= 1/4 MILE      1
HAZE                      2

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

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