803
CDUS45 KTFX 200845
CLIHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
145 AM MST SAT DEC 20 2025
...............................
..THE HELENA MT CLIMATE SUMMARY FOR DECEMBER 19 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 MM MM 59 1941 32 MM 48
2004
MINIMUM MM MM -30 1924 13 MM 28
AVERAGE MM 22 MM 38
PRECIPITATION (IN)
YESTERDAY MM 0.77 1925 0.01 MM 0.00
MONTH TO DATE 0.66 0.28 0.38 0.22
SINCE OCT 1 2.47 1.65 0.82 0.68
SINCE JAN 1 13.69 11.22 2.47 9.73
SNOWFALL (IN)
YESTERDAY MM 8.9 1925 0.2 MM 0.0
MONTH TO DATE 0.9 4.5 -3.6 1.7
SINCE DEC 1 0.9 4.5 -3.6 1.7
SINCE JUL 1 8.1 13.2 -5.1 4.0
SNOW DEPTH MM
DEGREE DAYS
HEATING
YESTERDAY MM 43 MM 27
MONTH TO DATE 486 770 -284 573
SINCE DEC 1 486 770 -284 573
SINCE JUL 1 1958 2612 -654 1956
COOLING
YESTERDAY MM 0 MM 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 467 433 34 590
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WIND (MPH)
HIGHEST WIND SPEED MM HIGHEST WIND DIRECTION MM
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED MM
SKY COVER
AVERAGE SKY COVER MM
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST MM
LOWEST MM
AVERAGE MM
......................................................
THE HELENA MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 31 55 1900
MINIMUM TEMPERATURE (F) 13 -25 1990
SUNRISE AND SUNSET
DECEMBER 20 2025......SUNRISE 809 AM MST SUNSET 443 PM MST
DECEMBER 21 2025......SUNRISE 809 AM MST SUNSET 443 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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