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

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CXUS53 KLSX 020759 CCB
CLMSTL

CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
1006 AM CDT THU OCT 01 2020

...................................

...THE ST. LOUIS CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2020...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1874 TO 2020

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              32   09/28/1942
HIGHEST           92   09/06                          95
                       09/07
LOWEST            47   09/19                          59
AVG. MAXIMUM    80.8               80.2     0.6     87.1
AVG. MINIMUM    61.0               60.6     0.4     68.6
MEAN            70.9               70.4     0.5     77.8
DAYS MAX >= 90     4                3.5     0.5       14
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.0     0.0        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       10.04   1945
 MINIMUM           T   1979
                       1940
TOTALS          0.90               3.13   -2.23     1.68
DAILY AVG.      0.03               0.10   -0.07     0.06
DAYS >= .01        6                7.4    -1.4        6
DAYS >= .10        3                4.6    -1.6        3
DAYS >= .50        0                1.9    -1.9        2
DAYS >= 1.00       0                1.1    -1.1        0
GREATEST
 24 HR. TOTAL   0.44   09/01

DEGREE DAYS
HEATING TOTAL     20                 40     -20
 SINCE 7/1        20                 41     -21
COOLING TOTAL    204                202       2
 SINCE 1/1      1703               1601     102
..............................................................

WIND (MPH)
HIGHEST WIND SPEED/DIRECTION    25/330    DATE  09/30
                                25/310          09/28
                                25/200          09/06
HIGHEST GUST SPEED/DIRECTION    36/310    DATE  09/28

SKY COVER
NUMBER OF DAYS FAIR           11
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY          7


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       4
LIGHT RAIN                6     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       8     FOG W/VIS <= 1/4 MILE      1
HAZE                      4

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

...MONTHLY...

TIED 17TH DRIEST SEPTEMBER ON RECORD (0.90 INCHES).


...DAILY...

NO RECORDS OF NOTE.

$$



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