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

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CXUS53 KLSX 020042
CLASTL

CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
635 PM CST TUE JAN 1 2019

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

...THE ST. LOUIS CLIMATE SUMMARY FOR THE YEAR OF 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1874 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH             115   07/14/1954
 LOW              -22   01/05/1884
HIGHEST           100   07/14
LOWEST             -6   01/01
AVG. MAXIMUM     66.7              66.2     0.5
AVG. MINIMUM     48.0              47.9     0.1
MEAN             57.3              57.1     0.2
DAYS MAX >= 90     72
DAYS MAX <= 32     23
DAYS MIN <= 32    101
DAYS MIN <= 0       3

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        61.24   2015
 MINIMUM        20.69   1953
TOTALS          42.60             40.96    1.64
DAYS >= .01       117
DAYS >= .10        81
DAYS >= .50        32
DAYS >= 1.00       11
GREATEST
 24 HR. TOTAL    1.73   02/24

SNOWFALL (INCHES)
RECORDS
 TOTAL           63.3   1912
 24 HR TOTAL     20.0*  03/30/1890 TO 03/31/1890
TOTALS           10.5              17.8    -7.3
SINCE 7/1         6.9               5.1     1.8
DAYS >= TRACE      51
DAYS >= 1.0         4
GREATEST
 SNOW DEPTH         2   11/16
                        11/15
 24 HR TOTAL      2.9   11/15

* = UNOFFICIAL RECORD


DEGREE_DAYS
HEATING TOTAL    4835              4535     300
COOLING TOTAL    2182              1646     536
.................................................

WIND (MPH)
HIGHEST WIND SPEED/DIRECTION    41/140    DATE  12/27
HIGHEST GUST SPEED/DIRECTION    61/220    DATE  07/01


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             59     HAIL                       2
FOG W/VIS <= 1/4 MILE     7

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


...ANNUAL...

TIED 2ND MOST OCCURRENCES WITH A MAXIMUM TEMPERATURE GREATER THAN OR
EQUAL TO 80 DEGREES (148 DAYS).

TIED 3RD MOST OCCURRENCES WITH A MINIMUM TEMPERATURE GREATER THAN OR
EQUAL TO 60 DEGREES (150 DAYS).

TIED 8TH MOST OCCURRENCES WITH AT LEAST A QUARTER INCH OF
PRECIPITATION (57 DAYS).


...SEASONAL...

TIED 8TH SNOWIEST METEOROLOGICAL FALL ON RECORD (5.2 INCHES).

TIED MOST OCCURRENCES WITH AT LEAST ONE INCH OF SNOWFALL WITHIN THE
FALL SEASON (3 DAYS).

3RD MOST OCCURRENCES WITH A MAXIMUM TEMPERATURE GREATER THAN OR
EQUAL TO 90 DEGREES WITHIN METEOROLOGICAL SPRING (8 DAYS).


...MONTHLY...

6TH COLDEST NOVEMBER ON RECORD (38.8 DEGREES).

TIED 8TH SNOWIEST NOVEMBER (5.2 INCHES).

8TH WARMEST JUNE (80.3 DEGREES).

WARMEST MAY ON RECORD (75.4 DEGREES. PREVIOUS WARMEST 73.2 IN 2012).

MOST OCCURRENCES WITH A MAXIMUM TEMPERATURE GREATER THAN OR EQUAL TO
90 DEGREES WITHIN THE MONTH OF MAY (27 DAYS. PREVIOUS MOST 25 IN
1962).

MOST OCCURRENCES WITH A MINIMUM TEMPERATURE GREATER THAN OR EQUAL TO
60 DEGREES WITHIN THE MONTH OF MAY (27 DAYS. PREVIOUS MOST 25 IN
1896).

4TH COLDEST APRIL (49.8 DEGREES).

MOST OCCURRENCES WITH A MINIMUM TEMPERATURE LESS THAN OR EQUAL TO 32
DEGREES WITHIN THE MONTH OF APRIL (10 DAYS. PREVIOUS MOST 8 LAST SET
IN 1982).

TIED 8TH WETTEST MARCH (7.12 INCHES).

MOST OCCURRENCES WITH AT LEAST A QUARTER INCH OF PRECIPITATION
WITHIN THE MONTH OF MARCH (10 DAYS).

3RD WETTEST FEBRUARY (5.25 INCHES).


...DAILY...

4 RECORD HIGH TEMPERATURES SET OR TIED (10/06, 05/27, 05/14, AND
02/15).

1 LOW MAXIMUM TEMPERATURE TIED (07/29).

1 LOW TEMPERATURE TIED (18 DEGREES ON 11/10. ALSO SET IN 1973).

6 HIGH MINIMUM TEMPERATURES SET OR TIED (10/09, 10/03, 06/18, 06/17,
05/31, AND 05/12).

1 PRECIPITATION VALUE SET (1.73 INCHES ON 02/24. PREVIOUS 1.49 IN
2001).

8 SNOWFALL VALUES SET OR TIED (11/15, 11/12, 11/09, 11/08, 04/19,
04/16, 04/15, AND 04/01).


$$

GOSSELIN


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