Climatological Report (Daily)
Issued by NWS
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145
CDUS45 KTFX 210734
CLIHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
134 AM MDT THU AUG 21 2025
...................................
...THE HELENA MT CLIMATE SUMMARY FOR AUGUST 20 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 92 515 PM 96 1953 84 8 84
1967
MINIMUM 63 551 AM 39 1916 52 11 54
1956
1995
AVERAGE 78 68 10 69
PRECIPITATION (IN)
YESTERDAY 0.00 1.89 1933 0.03 -0.03 0.09
MONTH TO DATE 1.36 0.68 0.68 0.41
SINCE OCT 1 10.72 10.08 0.64 8.99
SINCE JAN 1 9.96 8.25 1.71 7.47
SNOWFALL (IN)
YESTERDAY 0.0 0.5 1990 0.1 -0.1 0.0
MONTH TO DATE 0.0 0.2 -0.2 0.0
SINCE JUN 1 0.0 0.2 -0.2 0.0
SINCE JUL 1 0.0 0.2 -0.2 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 2 -2 0
MONTH TO DATE 11 12 -1 0
SINCE JUN 1 134 179 -45 88
SINCE JUL 1 23 35 -12 2
COOLING
YESTERDAY 13 4 9 4
MONTH TO DATE 121 121 0 129
SINCE JUN 1 361 363 -2 480
SINCE JAN 1 386 370 16 480
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 7.9
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RELATIVE HUMIDITY (PERCENT)
HIGHEST 56 600 AM
LOWEST 15 600 PM
AVERAGE 36
..........................................................
THE HELENA MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 95 1991
2005
2011
MINIMUM TEMPERATURE (F) 52 38 1933
SUNRISE AND SUNSET
AUGUST 21 2025........SUNRISE 634 AM MDT SUNSET 827 PM MDT
AUGUST 22 2025........SUNRISE 636 AM MDT SUNSET 825 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$