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

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
000
CXUS53 KLSX 011413
CLMSTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
813 AM CST WED JAN 01 2020

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

...THE ST. LOUIS CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2019...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1874 TO 2019

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             76   12/03/1970
                       12/15/1948
 LOW             -16   12/22/1989
HIGHEST           70   12/25                          67
LOWEST            18   12/17                          16
                       12/18
AVG. MAXIMUM    49.5               42.5     7.0     47.4
AVG. MINIMUM    30.0               26.9     3.1     30.5
MEAN            39.7               34.7     5.0     39.0
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     3                5.7    -2.7        2
DAYS MIN <= 32    20               21.0    -1.0       19
DAYS MIN <= 0      0                0.5    -0.5        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       11.74   2015
 MINIMUM        0.03   1955
TOTALS          1.86               2.84   -0.98     3.98
DAILY AVG.      0.06               0.09   -0.03     0.13
DAYS >= .01        7                9.4    -2.4       11
DAYS >= .10        5                5.4    -0.4        9
DAYS >= .50        1                1.7    -0.7        4
DAYS >= 1.00       0                0.7    -0.7        1
GREATEST
 24 HR. TOTAL   1.09   12/28 TO 12/29

SNOWFALL (INCHES)
RECORDS
 TOTAL          26.3   1973
 24 HR TOTAL    12.0   12/19/1973 TO 12/19/1973
TOTALS           5.1                4.4     0.7      1.7
SINCE 7/1        6.6                5.1     1.5      6.9
DAYS >= 1.0        2                                   1
GREATEST
 SNOW DEPTH        4   12/17
 24 HR TOTAL     2.4   12/16

DEGREE DAYS
HEATING TOTAL    776                939    -163      798
 SINCE 7/1      1743               1765     -22     1860
COOLING TOTAL      0                  0       0        0
 SINCE 1/1      1897               1646     251     2182
..............................................................

WIND (MPH)
HIGHEST WIND SPEED/DIRECTION    35/260    DATE  12/30
HIGHEST GUST SPEED/DIRECTION    46/290    DATE  12/01
                                46/260          12/30

SKY COVER
NUMBER OF DAYS FAIR            7
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY         12


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       3
LIGHT RAIN                6     FREEZING RAIN              0
LT FREEZING RAIN          2     HAIL                       0
HEAVY SNOW                2     SNOW                       2
LIGHT SNOW                7     SLEET                      2
FOG                      14     FOG W/VIS <= 1/4 MILE      3
HAZE                      7

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

...MONTHLY...

TIED 10TH MOST OCCURRENCES WITH A HIGH TEMPERATURE GREATER THAN OR
EQUAL TO 60 DEGREES (7 DAYS).

...DAILY...

RECORD SNOWFALL OF 2.4 INCHES SET ON 12/16. PREVIOUS 1.8 SET IN 2000.

$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.