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

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426
CDUS43 KLSX 170728
CLICOU

CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
228 AM CDT SUN MAY 17 2026

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

...THE COLUMBIA ASOS CLIMATE SUMMARY FOR MAY 16 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1890 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         80    511 PM  89    1944  76      4       84
                                      1962
                                      2019
  MINIMUM         64    209 AM  33    1890  56      8       57
  AVERAGE         72                        66      6       71

PRECIPITATION (IN)
  YESTERDAY        0.16          2.45 1990   0.15   0.01      T
  MONTH TO DATE    1.76                      2.61  -0.85     0.75
  SINCE MAR 1     14.13                     10.46   3.67     9.73
  SINCE JAN 1     15.97                     14.70   1.27    11.55

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      0.9                       1.7   -0.8      0.4
  SINCE JUL 1      9.2                      16.5   -7.3     18.6
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         3     -3        0
  MONTH TO DATE   86                        63     23       52
  SINCE MAR 1    643                       944   -301      677
  SINCE JUL 1   4074                      4649   -575     4309

 COOLING
  YESTERDAY        7                         4      3        6
  MONTH TO DATE   17                        40    -23       32
  SINCE MAR 1    105                        72     33       77
  SINCE JAN 1    105                        72     33       77
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    SE (130)
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED     9.2


SKY COVER
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           700 AM
 LOWEST     71          1200 AM
 AVERAGE    82

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


THE COLUMBIA ASOS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   76        91      1996
 MINIMUM TEMPERATURE (F)   56        35      1895


SUNRISE AND SUNSET
MAY 17 2026...........SUNRISE   555 AM CDT   SUNSET   816 PM CDT
MAY 18 2026...........SUNRISE   554 AM CDT   SUNSET   817 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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