Climatological Report (Annual) Issued by NWS St Louis, MO
121
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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