190
CXUS53 KLOT 011608
CLMORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1008 AM CST SAT MAR 01 2025

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE MONTH OF FEBRUARY 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             75   02/27/1976
 LOW             -21   02/09/1899
HIGHEST           57   02/28                          74  02/27
LOWEST            -5   02/18                          13  02/17
AVG. MAXIMUM    34.2               35.7    -1.5     49.2
AVG. MINIMUM    20.3               21.8    -1.5     29.7
MEAN            27.2               28.8    -1.6     39.5
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32    13               11.0     2.0        1
DAYS MIN <= 32    22               24.4    -2.4       22
DAYS MIN <= 0      2                1.8     0.2        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        5.98   1881
 MINIMUM        0.06   1877
TOTALS          0.52               1.97   -1.45     0.65
DAILY AVG.      0.02               0.07   -0.05     0.02
DAYS >= .01        8                9.4    -1.4        5
DAYS >= .10        2                4.7    -2.7        1
DAYS >= .50        0                1.0    -1.0        0
DAYS >= 1.00       0                0.3    -0.3        0
GREATEST
 24 HR. TOTAL   0.18   02/12 TO 02/12               0.47

SNOWFALL (INCHES)
RECORDS
 TOTAL          29.0   2011
TOTALS           4.9               10.7    -5.8      1.2
SINCE 7/1       14.8               31.6   -16.8       MM
SNOWDEPTH AVG.     1                                   0
DAYS >= 1.0        2                3.0    -1.0        1
GREATEST
 SNOW DEPTH        3   02/16                           1  02/24
                       02/17
                       02/18
 24 HR TOTAL     2.8   02/12 TO 02/12                1.2

DEGREE DAYS
HEATING TOTAL   1049               1015      34      733
 SINCE 7/1      4135               4470    -335       MM
COOLING TOTAL      0                  0       0        0
 SINCE 1/1         0                  0       0       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              10.3
HIGHEST WIND SPEED/DIRECTION    35/280    DATE  02/28
HIGHEST GUST SPEED/DIRECTION    50/250    DATE  02/28

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.69
NUMBER OF DAYS FAIR            2
NUMBER OF DAYS PC             16
NUMBER OF DAYS CLOUDY         10

AVERAGE RH (PERCENT)     65

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                6     FREEZING RAIN              0
LT FREEZING RAIN          3     HAIL                       1
HEAVY SNOW                1     SNOW                       2
LIGHT SNOW               11     SLEET                      0
FOG                      12     FOG W/VIS <= 1/4 MILE      1
HAZE                      3

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

$$