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

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CXUS53 KLSX 011759
CLMSTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
1220 PM CDT WED MAY 1 2013

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

...THE ST. LOUIS MO CLIMATE SUMMARY FOR THE MONTH OF APRIL 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1874 TO 2013

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              93   04/18/2002
                        04/26/1989
                        04/10/1930
 LOW               20   04/03/1936
HIGHEST            87   04/30                         89
LOWEST             30   04/02                         36
AVG. MAXIMUM     65.7              67.4    -1.7     70.8
AVG. MINIMUM     45.2              47.2    -2.0     49.6
MEAN             55.4              57.3    -1.9     60.2
DAYS MAX >= 90      0               0.3    -0.3        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      1               1.1    -0.1        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        10.84   1893
 MINIMUM         0.46   1895
TOTALS           5.67              3.69    1.98     7.30
DAILY AVG.       0.19              0.12    0.07     0.24
DAYS >= .01        10              11.3    -1.3       11
DAYS >= .10         7               7.3    -0.3       10
DAYS >= .50         3               2.5     0.5        7
DAYS >= 1.00        2               0.7     1.3        3
GREATEST
 24 HR. TOTAL    2.48   04/18 TO 04/18

SNOWFALL (INCHES)
RECORDS
 TOTAL            6.5   1971
 24 HR TOTAL      6.5   04/05/1971 TO 04/06/1971
TOTALS              T               0.4    -0.4      0.0
SINCE 7/1        27.9              17.7    10.2      6.3
GREATEST
 24 HR TOTAL        T   04/19 TO 04/19

DEGREE_DAYS
HEATING TOTAL     315               270      45      194
 SINCE 7/1       4385              4456     -71     3287
COOLING TOTAL      34                39      -5       57
 SINCE 1/1         34                46     -12      137
..............................................................

WIND (MPH)
HIGHEST WIND SPEED/DIRECTION    40/210    DATE  04/10
HIGHEST GUST SPEED/DIRECTION    58/170    DATE  04/10

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
NUMBER OF DAYS FAIR            6
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY         12


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              5     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       7
LIGHT RAIN               12     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                1     SLEET                      0
FOG                      11     FOG W/VIS <= 1/4 MILE      2
HAZE                      5

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

$$

 DAILY...

 -- 4/9  TIED RECORD HIGH MINIMUM OF 66 DEGREES...PREVIOUSLY 66 IN 2001

 -- 4/18 RECORD PRECIPITATION OF 2.48 INCHES...PREVIOUSLY 1.37 IN 1969

 -- 4/19 RECORD SNOWFALL OF A TRACE...THERE WAS NO PREVIOUS OCCURRENCE

 MONTHLY...

 -- PRECIPITATION: 28TH WETTEST
 -- SNOW: TIED 24TH SNOWIEST





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