Climatological Report (Monthly)
Issued by NWS Huntsville, AL

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000
CXUS54 KHUN 020335
CLMHSV


CLIMATE REPORT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
932 PM CST MON JAN 1 2018

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

...THE HUNTSVILLE CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1894 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              81   12/08/1956
 LOW               -3   12/23/1989
                        12/22/1989
HIGHEST            71   12/23        MM      MM       77
LOWEST             17   12/31        MM      MM       23
AVG. MAXIMUM     53.3              53.5    -0.2     56.8
AVG. MINIMUM     33.6              34.4    -0.8     37.6
MEAN             43.5              43.9    -0.4     47.2
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      1               0.8     0.2        0
DAYS MIN <= 32     17              13.9     3.1       12
DAYS MIN <= 0       0               0.1    -0.1        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        18.68   1990
 MINIMUM         0.45   1945
TOTALS           4.48              5.77   -1.29     5.91
DAILY AVG.       0.14              0.19   -0.05     0.19
DAYS >= .01         6              10.8    -4.8       13
DAYS >= .10         5               7.1    -2.1       10
DAYS >= .50         3               3.8    -0.8        5
DAYS >= 1.00        2               1.6     0.4        1
GREATEST
 24 HR. TOTAL    1.74   12/20 TO 12/20              3.08

SNOWFALL (INCHES)
RECORDS
 TOTAL           21.4   1963
 24 HR TOTAL     15.7   12/31/1963 TO 12/31/1963
TOTALS              T               0.3    -0.3        T
SINCE 7/1           T               0.3    -0.3        T
DAYS >= TRACE       1               0.4     0.6        1
DAYS >= 1.0         0               0.0     0.0        0
GREATEST
 SNOW DEPTH         0   MM                             0
 24 HR TOTAL        T   12/27 TO 12/27

DEGREE_DAYS
HEATING TOTAL     658               654       4      548
 SINCE 7/1       1136              1181     -45      812
COOLING TOTAL       0                 2      -2        4
 SINCE 1/1       2114              1951     163     2552

FREEZE DATES
RECORD
 EARLIEST     10/09/2000
 LATEST       05/02/1909
EARLIEST                        11/05
LATEST                          03/30
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              6.8
HIGHEST WIND SPEED/DIRECTION    31/240    DATE  12/23
HIGHEST GUST SPEED/DIRECTION    41/240    DATE  12/23

AVERAGE RH (PERCENT)     71

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       5
LIGHT RAIN                7     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                1     SLEET                      0
FOG                      15     FOG W/VIS <= 1/4 MILE      4

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

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