Climatological Report (Daily)
Issued by NWS St Louis, MO
Issued by NWS St Louis, MO
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CDUS43 KLSX 122231
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
531 PM CDT TUE MAY 12 2026
...................................
...THE ST. LOUIS CLIMATE SUMMARY FOR MAY 12 2026...
VALID AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1874 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 82 335 PM 93 2022 76 6 72
MINIMUM 57 145 AM 39 1960 57 0 64
AVERAGE 70 66 4 68
PRECIPITATION (IN)
TODAY 0.00 2.18 2002 0.17 -0.17 0.08
MONTH TO DATE 1.03 1.97 -0.94 1.28
SINCE MAR 1 13.07 10.20 2.87 15.04
SINCE JAN 1 15.49 15.02 0.47 19.03
SNOWFALL (IN)
TODAY 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 T 2.5 -2.5 0.3
SINCE JUL 1 18.5 16.6 1.9 18.6
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 0 3 -3 0
MONTH TO DATE 65 42 23 45
SINCE MAR 1 559 880 -321 597
SINCE JUL 1 3859 4399 -540 3822
COOLING
TODAY 5 4 1 3
MONTH TO DATE 14 37 -23 14
SINCE MAR 1 156 81 75 80
SINCE JAN 1 156 82 74 80
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 8.3
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 64 200 AM
LOWEST 30 400 PM
AVERAGE 47
..........................................................
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 91 1915
2018
MINIMUM TEMPERATURE (F) 57 40 1938
1971
SUNRISE AND SUNSET
MAY 12 2026...........SUNRISE 552 AM CDT SUNSET 804 PM CDT
MAY 13 2026...........SUNRISE 551 AM CDT SUNSET 805 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$