Climatological Report (Monthly)
Issued by NWS Jackson, MS

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CXUS54 KJAN 010748
CLMMEI


CLIMATE REPORT
NATIONAL WEATHER SERVICE JACKSON MS
144 AM CST MON JAN 1 2018

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

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

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1889 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              84   12/07/1998
 LOW                2   12/23/1989
HIGHEST            79   12/05        77       2       80  12/17
LOWEST             23   12/31        20       3       26  12/10
AVG. MAXIMUM     57.8              58.8    -1.0     63.2
AVG. MINIMUM     37.5              35.6     1.9     41.5
MEAN             47.6              47.2     0.4     52.3
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.2    -0.2        0
DAYS MIN <= 32     13              14.1    -1.1       11
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        14.79   1973
 MINIMUM         0.87   1896
TOTALS           4.09              5.06   -0.97     3.90
DAILY AVG.       0.13              0.16   -0.03     0.13
DAYS >= .01        14               9.9     4.1       10
DAYS >= .10         9               6.7     2.3        8
DAYS >= .50         4               3.5     0.5        3
DAYS >= 1.00        0               1.7    -1.7        0
GREATEST
 24 HR. TOTAL    0.69   12/08 TO 12/08              0.74

SNOWFALL (INCHES)
RECORDS
 TOTAL           17.6   1963
TOTALS            5.0               0.1     4.9      0.0
SINCE 7/1         5.0               0.1     4.9      0.0
DAYS >= TRACE       2
DAYS >= 1.0         1               0.0     1.0        0
GREATEST
 24 HR TOTAL      5.0   12/08 TO 12/08

DEGREE_DAYS
HEATING TOTAL     531               558     -27      404
 SINCE 7/1        872              1008    -136      613
COOLING TOTAL       3                 6      -3       18
 SINCE 1/1       2545              2035     510     2874
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.8
HIGHEST WIND SPEED/DIRECTION    30/320    DATE  12/05
HIGHEST GUST SPEED/DIRECTION    38/320    DATE  12/05

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           10
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY         14

AVERAGE RH (PERCENT)     76

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                6     RAIN                      10
LIGHT RAIN               15     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                2     SLEET                      0
FOG                      18     FOG W/VIS <= 1/4 MILE      6
HAZE                      2

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

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