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

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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).

$$


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