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

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CXUS53 KLSX 032015
CLASTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
215 PM CST FRI JAN 03 2020

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

...THE ST. LOUIS CLIMATE SUMMARY FOR THE YEAR OF 2019...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1874 TO 2020

WEATHER         OBSERVED          NORMAL  DEPART
                VALUE   DATE(S)   VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH            115   07/14/1954
 LOW             -22   01/05/1884
HIGHEST           97   07/19
                       07/10
                       08/19
LOWEST            -6   01/30
AVG. MAXIMUM    66.2               66.2     0.0
AVG. MINIMUM    48.1               47.9     0.2
MEAN            57.2               57.1     0.1
DAYS MAX >= 90    50
DAYS MAX <= 32    18
DAYS MAX >= 100    0
DAYS MIN <= 32    99
DAYS MIN <= 0      1

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       61.24   2015
 MINIMUM       20.69   1953
TOTALS         53.99              40.96   13.03
DAYS >= .01      135
DAYS >= .10       88
DAYS >= .50       37
DAYS >= 1.00      15
GREATEST
 24 HR. TOTAL   3.30   07/22 TO 07/22

SNOWFALL (INCHES)
RECORDS
 TOTAL          63.3   1912
 24 HR TOTAL    20.0   03/30/1890 TO 03/31/1890
TOTALS          23.9               17.8     6.1
SINCE 7/1        6.6                5.1     1.5
DAYS >= TRACE     42
DAYS >= 1.0        8
GREATEST
 SNOW DEPTH        9   01/11
 24 HR TOTAL    10.4   01/11 TO 01/12

DEGREE DAYS
HEATING TOTAL   4630               4535      95
 SINCE 7/1      1743               1765     -22
COOLING TOTAL   1897               1646     251
 SINCE 1/1      1897               1646     251
................................................

WIND (MPH)
HIGHEST WIND SPEED/DIRECTION    43/230    DATE  11/27
HIGHEST GUST SPEED/DIRECTION    65/220    DATE  02/23


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             71     HAIL                       3
FOG W/VIS <= 1/4 MILE    10

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

...ANNUAL...

TIED 8TH MOST OCCURRENCES WITH A MINIMUM TEMPERATURE GREATER THAN OR
EQUAL TO 70 DEGREES WITHIN A CALENDAR YEAR (72 DAYS).

5TH WETTEST YEAR ON RECORD (53.99 INCHES).

MOST OCCURRENCES WITH AT LEAST ONE TENTH OF AN INCH OF PRECIPITATION
(88 DAYS. PREVIOUS 87 SET IN 1993).


...SEASONAL...

6TH WETTEST METEOROLOGICAL (MARCH-MAY) SPRING ON RECORD (19.88
INCHES).


...MONTHLY...

WARMEST SEPTEMBER ON RECORD (77.8 DEGREES...PREVIOUS 77.4 IN 1897).

MOST OCCURRENCES WITH A MAXIMUM TEMPERATURE GREATER THAN OR EQUAL TO
80 DEGREES WITHIN THE MONTH OF SEPTEMBER (28 DAYS...PREVIOUS 26 IN
1897).

MOST OCCURRENCES WITH A MINIMUM TEMPERATURE GREATER THAN OR EQUAL TO
60 DEGREES WITHIN THE MONTH OF SEPTEMBER (29 DAYS...PREVIOUS 28 IN
1884).

8TH WETTEST AUGUST ON RECORD (6.33 INCHES).


...DAILY...

3 RECORD HIGH TEMPERATURES SET OR TIED (10/01, 09/27, AND 05/24).

3 LOW MAXIMUM TEMPERATURES SET (10/31, 05/11, AND 01/30).

2 LOW TEMPERATURES SET (11/12 AND 11/11).

5 HIGH MINIMUM TEMPERATURES SET OR TIED (10/02, 10/01, 09/30, 09/22,
AND 07/02).

4 PRECIPITATION VALUES SET (11/29, 08/12, 07/22, AND 02/06).

3 SNOWFALL VALUES SET OR TIED (12/16, 11/11, AND 10/31).

$$



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