800
CXUS53 KLOT 011607
CLMORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1107 AM CDT SAT JUN 01 2024

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...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE MONTH OF MAY 2024...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2024

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             98   05/31/1934
 LOW              27   05/09/1983
                       05/02/1875
HIGHEST           89   05/21                          91  05/30
                                                          05/31
LOWEST            45   05/30                          38  05/03
AVG. MAXIMUM    75.2               70.5     4.7     73.8
AVG. MINIMUM    54.5               50.6     3.9     51.0
MEAN            64.8               60.6     4.2     62.4
DAYS MAX >= 90     0                1.0    -1.0        2
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.2    -0.2        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        9.51   2020
 MINIMUM        0.30   1992
TOTALS          4.06               4.49   -0.43     0.71
DAILY AVG.      0.13               0.14   -0.01     0.02
DAYS >= .01       13               12.5     0.5        8
DAYS >= .10       10                8.1     1.9        2
DAYS >= .50        4                3.0     1.0        0
DAYS >= 1.00       0                1.1    -1.1        0
GREATEST
 24 HR. TOTAL   0.79   05/02 TO 05/03               0.29

SNOWFALL (INCHES)
RECORDS
 TOTAL           2.2   1940
TOTALS           0.0                0.0     0.0      0.0
SINCE 7/1       22.2               38.4   -16.2       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= 1.0        0                0.0     0.0        0
GREATEST
 SNOW DEPTH        0                                   0
 24 HR TOTAL     0.0                                 0.0

DEGREE DAYS
HEATING TOTAL     68                198    -130      140
 SINCE 7/1      4769               5943   -1174       MM
COOLING TOTAL     71                 60      11       68
 SINCE 1/1        80                 70      10       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.3
HIGHEST WIND SPEED/DIRECTION    37/220    DATE  05/22
HIGHEST GUST SPEED/DIRECTION    58/220    DATE  05/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.59
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC             18
NUMBER OF DAYS CLOUDY          9

AVERAGE RH (PERCENT)     63

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             11     MIXED PRECIP               0
HEAVY RAIN                8     RAIN                       7
LIGHT RAIN               15     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      15     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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