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

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000
CXUS53 KLSX 020025 CCA
CLMSTL

CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
159 PM CDT MON MAY 1 2017

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

...THE ST. LOUIS MO CLIMATE SUMMARY FOR THE MONTH OF APRIL 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              93   04/18/2002
                        04/26/1989
                        04/10/1930
 LOW               20   04/03/1936
HIGHEST            88   04/19                         87
LOWEST             39   04/07                         30
AVG. MAXIMUM     72.7              67.4     5.3     70.3
AVG. MINIMUM     51.9              47.2     4.7     49.4
MEAN             62.3              57.3     5.0     59.9
DAYS MAX >= 90      0               0.3    -0.3        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               1.1    -1.1        1
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        10.84   1893
 MINIMUM         0.46   1895
TOTALS          10.37              3.69    6.68     4.49
DAILY AVG.       0.35              0.12    0.23     0.15
DAYS >= .01        16              11.3     4.7        9
DAYS >= .10         7               7.3    -0.3        8
DAYS >= .50         5               2.5     2.5        3
DAYS >= 1.00        4               0.7     3.3        2
GREATEST
 24 HR. TOTAL    3.99   04/29 TO 04/30

SNOWFALL (INCHES)
RECORDS
 TOTAL            6.5   1971
 24 HR TOTAL      6.5   04/05/1971 TO 04/06/1971
TOTALS            0.0               0.4    -0.4      0.0
SINCE 7/1         3.2              17.7   -14.5     10.9
GREATEST
 24 HR TOTAL      0.0

DEGREE_DAYS
HEATING TOTAL     140               270    -130      198
 SINCE 7/1       3340              4456   -1116     3401
COOLING TOTAL      67                39      28       52
 SINCE 1/1         75                46      29       60
..............................................................

WIND (MPH)
HIGHEST WIND SPEED/DIRECTION    33/270    DATE  04/29
HIGHEST GUST SPEED/DIRECTION    42/220    DATE  04/26

SKY COVER
NUMBER OF DAYS FAIR            2
NUMBER OF DAYS PC             14
NUMBER OF DAYS CLOUDY         14


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             10     MIXED PRECIP               0
HEAVY RAIN                8     RAIN                       9
LIGHT RAIN               16     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      0
HAZE                      1

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

$$



...MONTHLY...

8TH WARMEST APRIL ON RECORD (62.3 DEGREES).

2ND WETTEST APRIL ON RECORD (10.37 INCHES).


...DAILY...

1 RECORD HIGH TEMPERATURE TIED (88 DEGREES ON 4/19. ALSO SET IN
2011).

2 RECORD RAINFALL VALUES SET (04/05...2.01 INCHES. PREVIOUS WAS
1.58 SET IN 1926. AND 04/29...3.15 INCHES. PREVIOUS WAS 2.29 SET IN
1911)


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