Climatological Report (Seasonal) Issued by NWS St Louis, MO
000
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).
$$