Climatological Report (Daily)
Issued by NWS St Louis, MO

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853
CDUS43 KLSX 130747
CLISTL

CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
247 AM CDT TUE MAY 13 2025

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

...THE ST. LOUIS CLIMATE SUMMARY FOR MAY 12 2025...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1874 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         72    347 PM  93    2022  76     -4       84
  MINIMUM         64    509 AM  39    1960  57      7       59
  AVERAGE         68                        66      2       72

PRECIPITATION (IN)
  YESTERDAY        0.08          2.18 2002   0.17  -0.09     0.00
  MONTH TO DATE    1.27                      1.97  -0.70     2.03
  SINCE MAR 1     15.03                     10.20   4.83    12.35
  SINCE JAN 1     19.02                     15.02   4.00    16.78

SNOWFALL (IN)
  YESTERDAY        0.0           0.0  2015   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE MAR 1      0.3                       2.5   -2.2       T
  SINCE JUL 1     18.6                      16.6    2.0      9.3
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         3     -3        0
  MONTH TO DATE   45                        42      3        2
  SINCE MAR 1    597                       880   -283      545
  SINCE JUL 1   3822                      4399   -577     3351

 COOLING
  YESTERDAY        3                         4     -1        7
  MONTH TO DATE   14                        37    -23       60
  SINCE MAR 1     80                        81     -1      148
  SINCE JAN 1     80                        82     -2      148
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION     E (100)
  HIGHEST GUST SPEED    MM   HIGHEST GUST DIRECTION    MM
  AVERAGE WIND SPEED     5.7


SKY COVER
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90          1100 PM
 LOWEST     53          1200 AM
 AVERAGE    72

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


THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   76        91      1915
                                             2018
 MINIMUM TEMPERATURE (F)   57        40      1938
                                             1971


SUNRISE AND SUNSET
MAY 13 2025...........SUNRISE   551 AM CDT   SUNSET   805 PM CDT
MAY 14 2025...........SUNRISE   550 AM CDT   SUNSET   806 PM CDT


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




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