399
CDUS45 KTFX 170735
CLIGTF
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
135 AM MDT MON AUG 17 2026
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..THE GREAT FALLS MT CLIMATE SUMMARY FOR AUGUST 16 2026
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1886 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
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TEMPERATURE (F)
YESTERDAY
MAXIMUM 83 240 PM 101 2013 84 -1 94
MINIMUM 58 1159 PM 39 2002 51 7 52
AVERAGE 71 67 4 73
PRECIPITATION (IN)
YESTERDAY T 0.87 1985 0.04 -0.04 0.13
MONTH TO DATE 1.18 0.57 0.61 0.41
SINCE OCT 1 15.54 12.78 2.76 10.93
SINCE JAN 1 13.70 10.50 3.20 9.85
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2002 0.0 0.0 0.0
MONTH TO DATE 0.0 0.1 -0.1 0.0
SINCE JUN 1 0.0 0.4 -0.4 0.0
SINCE JUL 1 0.0 0.1 -0.1 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 2 -2 0
MONTH TO DATE 37 20 17 9
SINCE JUN 1 275 261 14 182
SINCE JUL 1 47 68 -21 39
COOLING
YESTERDAY 6 4 2 8
MONTH TO DATE 44 80 -36 71
SINCE JUN 1 283 240 43 234
SINCE JAN 1 303 243 60 248
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WIND (MPH)
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 8.5
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 75 1100 PM
LOWEST 27 200 PM
AVERAGE 51
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THE GREAT FALLS MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 101 2023
MINIMUM TEMPERATURE (F) 50 36 2002
SUNRISE AND SUNSET
AUGUST 17 2026........SUNRISE 624 AM MDT SUNSET 834 PM MDT
AUGUST 18 2026........SUNRISE 626 AM MDT SUNSET 832 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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