835
CDUS43 KLSX 210748
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
248 AM CDT THU MAY 21 2026
...............................
..THE ST. LOUIS CLIMATE SUMMARY FOR MAY 20 2026
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)
YESTERDAY
MAXIMUM 66 712 PM 93 1902 78 -12 83
MINIMUM 56 825 AM 41 1894 59 -3 63
1981
AVERAGE 61 69 -8 73
PRECIPITATION (IN)
YESTERDAY 0.00 1.66 1947 0.15 -0.15 0.03
MONTH TO DATE 4.17 3.19 0.98 3.41
SINCE MAR 1 16.21 11.42 4.79 17.17
SINCE JAN 1 18.63 16.24 2.39 21.16
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 T 2.5 -2.5 0.3
SINCE JUL 1 18.5 16.6 1.9 18.6
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 4 2 2 0
MONTH TO DATE 72 59 13 45
SINCE MAR 1 566 897 -331 597
SINCE JUL 1 3866 4416 -550 3822
COOLING
YESTERDAY 0 6 -6 8
MONTH TO DATE 52 76 -24 83
SINCE MAR 1 194 120 74 149
SINCE JAN 1 194 121 73 149
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 9.1
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 100 AM
LOWEST 63 300 PM
AVERAGE 74
......................................................
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 93 1941
MINIMUM TEMPERATURE (F) 60 38 1883
SUNRISE AND SUNSET
MAY 21 2026...........SUNRISE 545 AM CDT SUNSET 812 PM CDT
MAY 22 2026...........SUNRISE 544 AM CDT SUNSET 813 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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