Climatological Report (Monthly)
Issued by NWS Missoula, MT

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CXUS55 KMSO 011642 CCA
CLMMSO

CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA, MT
938 AM MST TUE JAN 1 2019

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

...THE MISSOULA MT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1893 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              60   12/03/1956
                        12/08/1938
                        12/14/1924
 LOW              -30   12/23/1983
                        12/17/1964
HIGHEST            44   12/19        MM      MM       42
LOWEST              1   12/07        MM      MM       -7
AVG. MAXIMUM     33.0              31.0     2.0     29.0
AVG. MINIMUM     19.4              16.7     2.7     17.8
MEAN             26.2              23.9     2.3     23.4
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32     16              15.1     0.9       18
DAYS MIN <= 32     31              29.5     1.5       31
DAYS MIN <= 0       0               2.4    -2.4        1

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.09   1917
 MINIMUM         0.11   1909
TOTALS           0.85              1.04   -0.19     1.62
DAILY AVG.       0.03              0.03    0.00     0.05
DAYS >= .01        14              12.3     1.7       16
DAYS >= .10         4               3.5     0.5        6
DAYS >= .50         0               0.1    -0.1        1
DAYS >= 1.00        0               0.0     0.0        0
GREATEST
 24 HR. TOTAL    0.15   12/18 TO 12/18              0.64

SNOWFALL (INCHES)
TOTALS            7.7              11.0    -3.3     21.2
SINCE 7/1        18.9              17.0     1.9     27.3
DAYS >= TRACE      18               9.8     8.2       26
DAYS >= 1.0         4               3.6     0.4        6
GREATEST
 SNOW DEPTH         5   12/31                          9
                        12/30
                        12/29
 24 HR TOTAL      1.8   12/29 TO 12/29               6.3

DEGREE_DAYS
HEATING TOTAL    1196              1276     -80
 SINCE 7/1       3156              3172     -16
COOLING TOTAL       0                 0       0
 SINCE 1/1        280               332     -52
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              3.5
HIGHEST WIND SPEED/DIRECTION    32/300    DATE  12/30
HIGHEST GUST SPEED/DIRECTION    37/300    DATE  12/30

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            6
NUMBER OF DAYS PC             10
NUMBER OF DAYS CLOUDY         15

AVERAGE RH (PERCENT)     75

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                7     FREEZING RAIN              0
LT FREEZING RAIN          2     HAIL                       0
HEAVY SNOW                1     SNOW                       2
LIGHT SNOW               17     SLEET                      0
FOG                      17     FOG W/VIS <= 1/4 MILE      5
HAZE                      6

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

$$


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