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

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587
CXUS53 KLSX 011007
CLMSTL

CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
449 AM CDT TUE OCT 01 2019

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

...THE ST. LOUIS CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 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              32   09/28/1942
HIGHEST           95   09/16                          95
LOWEST            59   09/24                          52
AVG. MAXIMUM    87.1               80.2     6.9     84.5
AVG. MINIMUM    68.6               60.6     8.0     65.1
MEAN            77.8               70.4     7.4     74.8
DAYS MAX >= 90    14                3.5    10.5       12
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
TOTALS          1.68               3.13   -1.45     2.00
DAILY AVG.      0.06               0.10   -0.04     0.07
DAYS >= .01        6                7.4    -1.4        5
DAYS >= .10        3                4.6    -1.6        3
DAYS >= .50        2                1.9     0.1        2
DAYS >= 1.00       0                1.1    -1.1        0
GREATEST
 24 HR. TOTAL   0.80   09/08

DEGREE DAYS
HEATING TOTAL      0                 40     -40        7
 SINCE 7/1         0                 41     -41        7
COOLING TOTAL    394                202     192      309
 SINCE 1/1      1853               1601     252     2065
..............................................................

WIND (MPH)
HIGHEST WIND SPEED/DIRECTION    32/180    DATE  09/20
HIGHEST GUST SPEED/DIRECTION    44/180    DATE  09/20

SKY COVER
NUMBER OF DAYS FAIR            9
NUMBER OF DAYS PC             17
NUMBER OF DAYS CLOUDY          4


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       3
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       5     FOG W/VIS <= 1/4 MILE      0
HAZE                      4

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


...MONTHLY...

WARMEST SEPTEMBER ON RECORD (77.8 DEGREES...PREVIOUS 77.4 IN 1897).

TIED 5TH MOST OCCURRENCES OF A HIGH TEMPERATURE GREATER THAN OR EQUAL
TO 90 DEGREES (14 DAYS).

MOST OCCURRENCES OF A HIGH TEMPERATURE GREATER THAN OR EQUAL TO
80 DEGREES (28 DAYS...PREVIOUS 26 IN 1897).

4TH MOST OCCURRENCES OF A LOW TEMPERATURE GREATER THAN OR EQUAL TO
70 DEGREES (13 DAYS).

MOST OCCURRENCES OF A LOW TEMPERATURE GREATER THAN OR EQUAL TO
60 DEGREES (29 DAYS...PREVIOUS 28 IN 1884).


...DAILY...

1 RECORD HIGH TEMPERATURE SET (92 DEGREES ON 09/27...PREVIOUS 91 IN 1891).

2 RECORD HIGH MINIMUM TEMPERATURES SET OR TIED (09/30 AND 09/22).

$$

GOSSELIN



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