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

000
CXUS53 KLSX 050309 CCA
CLSSTL

STLCLMSTL 000
TTAA00 KLSX 012309


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
500 PM CST SAT DEC 1 2012

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

...THE ST. LOUIS CLIMATE SUMMARY FOR THE SEASON, FROM
9/1/2012 TO 11/30/2012...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1874 TO 2012

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH             104   09/01/2011
                        09/01/1984
                        09/04/1954
 LOW                1   11/30/1964
HIGHEST            93   09/07
LOWEST             22   11/27
AVG. MAXIMUM     67.3              68.0    -0.7
AVG. MINIMUM     47.5              49.2    -1.7
MEAN             57.4              58.6    -1.2
DAYS MAX >= 90      3
DAYS MAX <= 32      0
DAYS MIN <= 32     12
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        21.50   1984
 MINIMUM         2.36   1875
TOTALS           6.93             10.37   -3.44
DAYS >= .01        26
DAYS >= .10        15
DAYS >= .50         6
DAYS >= 1.00        1
GREATEST
 24 HR. TOTAL    1.90   08/31 TO 09/01

SNOWFALL (INCHES)
RECORDS
 TOTAL           11.3   1951
 24 HR TOTAL      7.7   11/26/1980 TO 11/27/1980
TOTALS            0.0               0.7    -0.7
SINCE 7/1         0.0               0.7    -0.7
DAYS >= TRACE       0
DAYS >= 1.0         0
GREATEST
 SNOW DEPTH         0
 24 HR TOTAL      0.0

DEGREE_DAYS
HEATING TOTAL     879               825      54
 SINCE 7/1        879               826      53
COOLING TOTAL     211               247     -36
 SINCE 1/1       2209              1646     563
.................................................

WIND (MPH)
AVERAGE WIND SPEED              7.4
HIGHEST WIND SPEED/DIRECTION    36/250    DATE  10/17
HIGHEST GUST SPEED/DIRECTION    44/270    DATE  10/17


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             11     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 LEAST SNOWIEST FALL SEASON ON RECORD (0.0 INCHES - 14TH OCCURRENCE)

FIRST BELOW NORMAL SEASONAL AVERAGE TEMPERATURE SINCE WINTER (DEC-FEB)
2010-2011.


...MONTHLY...

TIED LEAST SNOWIEST NOVEMBER ON RECORD (0.0 INCHES - 18TH OCCURRENCE)

SEPTEMBER 2012 WAS FIRST MONTH WITH A BELOW NORMAL AVERAGE TEMPERATURE
SINCE SEPTEMBER 2011 BREAKING STREAK OF 11 CONSECUTIVE MONTHS ABOVE NORMAL


...DAILY...

1 RECORD DAILY HIGH (81 DEGREES ON 11/10)

1 RECORD LOW MAXIMUM (51 DEGREES ON 10/6)
    -- FIRST COLD RECORD OF ANY KIND SINCE 7/18/2009

2 RECORD HIGH MINIMUM TEMPERATURES (10/22 AND 10/24)