Climatological Report (Seasonal)
Issued by NWS St Louis, MO
Issued by NWS St Louis, MO
981 CXUS53 KLSX 011839 CLSSTL CLIMATE REPORT NATIONAL WEATHER SERVICE ST LOUIS MO 1239 PM CST SUN DEC 01 2019 ................................... ...THE ST. LOUIS CLIMATE SUMMARY FOR THE SEASON, FROM 9/1/2019 TO 11/30/2019... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1874 TO 2019 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 104 09/01/2011 09/01/1984 09/04/1954 LOW 1 11/30/1964 HIGHEST 95 09/16 LOWEST 11 11/12 AVG. MAXIMUM 68.4 68.0 0.4 AVG. MINIMUM 49.6 49.2 0.4 MEAN 59.0 58.6 0.4 DAYS MAX >= 90 16 DAYS MAX <= 32 1 DAYS MAX >= 100 0 DAYS MIN <= 32 15 DAYS MIN <= 0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 21.50 1984 MINIMUM 2.36 1875 TOTALS 9.07 10.37 -1.30 DAYS >= .01 28 DAYS >= .10 14 DAYS >= .50 7 DAYS >= 1.00 3 GREATEST 24 HR. TOTAL 2.60 11/29 TO 11/30 SNOWFALL (INCHES) RECORDS TOTAL 11.3 1951 24 HR TOTAL 7.7 11/26/1980 TO 11/27/1980 TOTALS 1.5 0.7 0.8 SINCE 7/1 1.5 0.7 0.8 DAYS >= TRACE 4 DAYS >= 1.0 1 GREATEST SNOW DEPTH 2 24 HR TOTAL 1.5 11/11 TO 11/11 DEGREE DAYS HEATING TOTAL 967 825 142 SINCE 7/1 967 826 141 COOLING TOTAL 438 247 191 SINCE 1/1 1897 1646 251 .............................................................. WIND (MPH) HIGHEST WIND SPEED/DIRECTION 43/270 DATE 11/27 HIGHEST GUST SPEED/DIRECTION 64/250 DATE 11/27 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 8 HAIL 0 FOG W/VIS <= 1/4 MILE 3 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. ...SEASONAL... TIED 3RD MOST OCCURRENCES WITH A MAXIMUM TEMPERATURE GREATER THAN OR EQUAL TO 90 DEGREES (16 DAYS). TIED 2ND MOST OCCURRENCES WITH A MINIMUM TEMPERATURE GREATER THAN OR EQUAL TO 70 DEGREES (15 DAYS). ...MONTHLY... WARMEST SEPTEMBER ON RECORD (77.8 DEGREES...PREVIOUS 77.4 IN 1897). MOST OCCURRENCES WITH A HIGH TEMPERATURE GREATER THAN OR EQUAL TO 80 DEGREES WITHIN THE MONTH OF SEPTEMBER (28 DAYS...PREVIOUS 26 IN 1897). MOST OCCURRENCES WITH A LOW TEMPERATURE GREATER THAN OR EQUAL TO 60 DEGREES WITHIN THE MONTH OF SEPTEMBER (29 DAYS...PREVIOUS 28 IN 1884). ...DAILY... 2 RECIRD HIGH TEMPERATURE SET OR TIED (10/01 AND 9/27). 1 RECORD LOW MAXIMUM TEMPERATURE SET (38 DEGREES ON 10/31...PREVIOUS 41 DEGREES IN 1993). 2 RECORD LOW TEMPERATURES SET (11/12 AND 11/11). 4 RECORD HIGH MINIMUM TEMPERATURES SET OR TIED (10/02, 10/01, 9/30 AND 9/22). 2 RECORD SNOWFALL VALUES SET OR TIED (11/11 AND 10/31). 1 RECORD RAINFALL VALUE SET (1.10 INCHES ON 11/29...PREVIOUS 0.73 IN 1967). $$