541
CDUS45 KMSO 180841
CLIMSO
CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA MT
141 AM MST THU DEC 18 2025
...............................
..THE MISSOULA MT CLIMATE SUMMARY FOR DECEMBER 17 2025
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1893 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 50R 147 AM 50 1904 30 20 32
MINIMUM 32 938 PM -30 1964 17 15 28
AVERAGE 41 24 17 30
PRECIPITATION (IN)
YESTERDAY 0.31 0.56 1917 0.03 0.28 0.02
MONTH TO DATE 2.15 0.58 1.57 0.10
SINCE OCT 1 4.29 2.94 1.35 1.30
SINCE JAN 1 13.47 13.61 -0.14 10.41
SNOWFALL (IN)
YESTERDAY T
MONTH TO DATE 8.0
SINCE DEC 1 8.0
SINCE JUL 1 9.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 24 41 -17 35
MONTH TO DATE 464 675 -211 598
SINCE DEC 1 464 675 -211 598
SINCE JUL 1 1955 2632 -677 2139
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 441 307 134 474
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 47 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 63 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 15.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
LIGHT SNOW
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 700 AM
LOWEST 41 1100 AM
AVERAGE 69
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THE MISSOULA MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 30 50 1917
MINIMUM TEMPERATURE (F) 17 -18 1924
1964
SUNRISE AND SUNSET
DECEMBER 18 2025......SUNRISE 817 AM MST SUNSET 449 PM MST
DECEMBER 19 2025......SUNRISE 818 AM MST SUNSET 449 PM MST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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