119
CDUS45 KTFX 181051
CLIHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
351 AM MST THU DEC 18 2025
...............................
..THE HELENA MT CLIMATE SUMMARY FOR DECEMBER 17 2025
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1866 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 53 MM 58 1998 32 21 30
MINIMUM 39 200 PM -38 1964 14 25 22
AVERAGE 46 23 23 26
PRECIPITATION (IN)
YESTERDAY 0.23R 0.23 2025 0.01 0.22 T
MONTH TO DATE 0.66 0.25 0.41 0.22
SINCE OCT 1 2.47 1.62 0.85 0.68
SINCE JAN 1 13.69 11.19 2.50 9.73
SNOWFALL (IN)
YESTERDAY 0.0 2.8 1955 0.2 -0.2 T
MONTH TO DATE 0.9 4.0 -3.1 1.7
SINCE DEC 1 0.9 4.0 -3.1 1.7
SINCE JUL 1 8.1 12.7 -4.6 4.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 19 42 -23 39
MONTH TO DATE 484 685 -201 523
SINCE DEC 1 484 685 -201 523
SINCE JUL 1 1956 2527 -571 1906
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 467 433 34 590
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 47 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 81 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 24.9
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82 900 AM
LOWEST 33 100 AM
AVERAGE 58
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THE HELENA MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 32 59 1917
MINIMUM TEMPERATURE (F) 13 -30 1924
SUNRISE AND SUNSET
DECEMBER 18 2025......SUNRISE 808 AM MST SUNSET 442 PM MST
DECEMBER 19 2025......SUNRISE 808 AM MST SUNSET 442 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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