Climatological Report (Daily)
Issued by NWS St Louis, MO
Issued by NWS St Louis, MO
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CDUS43 KLSX 180727
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
227 AM CDT MON AUG 18 2025
...................................
...THE ST. LOUIS CLIMATE SUMMARY FOR AUGUST 17 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 96 333 PM 104 1936 89 7 90
MINIMUM 76 509 PM 55 1879 70 6 73
AVERAGE 86 79 7 82
PRECIPITATION (IN)
YESTERDAY 1.12 1.89 1939 0.11 1.01 0.00
MONTH TO DATE 1.44 1.95 -0.51 1.06
SINCE JUN 1 10.40 10.37 0.03 10.57
SINCE JAN 1 32.05 28.24 3.81 31.36
SNOWFALL (IN)
YESTERDAY 0.0 0.0 MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 4 -4 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 21 14 7 17
MONTH TO DATE 265 250 15 243
SINCE JUN 1 1218 1077 141 1174
SINCE JAN 1 1389 1272 117 1487
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 39 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 58 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 5.5
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
LIGHT RAIN
HAIL
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 800 PM
LOWEST 48 400 PM
AVERAGE 68
..........................................................
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 106 1936
MINIMUM TEMPERATURE (F) 69 54 1963
SUNRISE AND SUNSET
AUGUST 18 2025........SUNRISE 618 AM CDT SUNSET 751 PM CDT
AUGUST 19 2025........SUNRISE 619 AM CDT SUNSET 750 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$