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

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CXUS53 KLSX 011346
CLMSTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
828 AM CDT SUN OCT 1 2017

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

...THE ST. LOUIS MO CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1874 TO 2017

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            97   09/20                         96
LOWEST             50   09/06                         54
AVG. MAXIMUM     84.2              80.2     4.0     85.0
AVG. MINIMUM     62.2              60.6     1.6     65.8
MEAN             73.2              70.4     2.8     75.4
DAYS MAX >= 90      9               3.5     5.5       10
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           0.27              3.13   -2.86     4.95
DAILY AVG.       0.01              0.10   -0.09     0.17
DAYS >= .01         4               7.4    -3.4        9
DAYS >= .10         1               4.6    -3.6        6
DAYS >= .50         0               1.9    -1.9        3
DAYS >= 1.00        0               1.1    -1.1        3
GREATEST
 24 HR. TOTAL    0.20   09/18 TO 09/18

SNOWFALL (INCHES)
TOTALS            0.0               0.0     0.0      0.0
SINCE 7/1         0.0               0.0     0.0      0.0
GREATEST
 24 HR TOTAL      0.0   09/30 TO 09/30

DEGREE_DAYS
HEATING TOTAL       7                40     -33        4
 SINCE 7/1          7                41     -34        4
COOLING TOTAL     262               202      60      324
 SINCE 1/1       1864              1601     263     2029
..............................................................

WIND (MPH)
HIGHEST WIND SPEED/DIRECTION    23/320    DATE  09/05
HIGHEST GUST SPEED/DIRECTION    30/330    DATE  09/05

SKY COVER
NUMBER OF DAYS FAIR           15
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY          4


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                5     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      1
HAZE                      0

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

...MONTHLY...

7TH DIEST SEPTEMBER ON RECORD (0.27 INCHES),

TIED 5TH LEAST NUMBER OF DAYS WITH AT LEAST ONE TENTH OF AN INCH OF
RAINFALL (1 DAY).

...DAILY...

3 RECORD HIGH TEMPERATURES SET OR TIED (9/25, 9/22, AND 9/20).

2 RECORD HIGH MINIMUM TEMPERATURES TIED (9/26 AND 9/21).

$$




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