Climatological Report (Monthly)
Issued by NWS Missoula, MT

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000
CXUS55 KMSO 021819
CLMBTM

CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA MT
1119 AM MST TUE JAN 02 2024

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

...THE BUTTE MT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2023...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1895 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             66   12/27/1917
 LOW             -52   12/23/1983
HIGHEST           54   12/05         MM      MM       49
                       12/06
LOWEST           -15   12/25         MM      MM      -40
AVG. MAXIMUM    38.4               30.7     7.7     29.0
AVG. MINIMUM    12.2                7.2     5.0      4.4
MEAN            25.3               19.0     6.3     16.7
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32    10               16.8    -6.8       17
DAYS MIN <= 32    29               30.5    -1.5       31
DAYS MIN <= 0      5                9.6    -4.6       12

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        1.99   1996
 MINIMUM        0.02   1918
TOTALS          0.31               0.48   -0.17     0.47
DAILY AVG.      0.01               0.02   -0.01     0.02
DAYS >= .01        6                7.2    -1.2        8
DAYS >= .10        1                1.3    -0.3        2
DAYS >= .50        0                0.1    -0.1        0
DAYS >= 1.00       0                0.0     0.0        0
GREATEST
 24 HR. TOTAL   0.16   12/23 TO 12/23               0.17


DEGREE DAYS
HEATING TOTAL   1223               1427    -204
 SINCE 7/1      3396               3882    -486
COOLING TOTAL      0                  0       0
 SINCE 1/1        73                 83     -10
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              3.1
HIGHEST WIND SPEED/DIRECTION    25/300    DATE  12/23
HIGHEST GUST SPEED/DIRECTION    33/330    DATE  12/08
                                33/300          12/23

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           17
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     69

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                1     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       3
LIGHT SNOW                7     SLEET                      0
FOG                      10     FOG W/VIS <= 1/4 MILE      2
HAZE                      7

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

$$


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