397
CDUS45 KTFX 170735
CLIHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
135 AM MDT MON AUG 17 2026
...............................
..THE HELENA MT CLIMATE SUMMARY FOR AUGUST 16 2026
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1866 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 81 449 PM 99 2022 85 -4 90
MINIMUM 52 558 AM 42 1905 53 -1 55
1954
AVERAGE 67 69 -2 73
PRECIPITATION (IN)
YESTERDAY 0.00 0.85 2025 0.04 -0.04 0.85
MONTH TO DATE 0.57 0.56 0.01 1.22
SINCE OCT 1 11.71 9.96 1.75 10.58
SINCE JAN 1 9.04 8.13 0.91 9.82
SNOWFALL (IN)
YESTERDAY 0.0 T 1954 0.0 0.0 0.0
1995
MONTH TO DATE 0.0 0.1 -0.1 0.0
SINCE JUN 1 0.0 0.1 -0.1 0.0
SINCE JUL 1 0.0 0.1 -0.1 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 11 7 4 11
SINCE JUN 1 185 174 11 134
SINCE JUL 1 18 30 -12 23
COOLING
YESTERDAY 2 5 -3 8
MONTH TO DATE 83 103 -20 89
SINCE JUN 1 373 345 28 329
SINCE JAN 1 393 352 41 354
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SE (130)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 5.2
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 500 AM
LOWEST 33 500 PM
AVERAGE 61
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THE HELENA MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 102 2023
MINIMUM TEMPERATURE (F) 53 38 1985
2002
SUNRISE AND SUNSET
AUGUST 17 2026........SUNRISE 629 AM MDT SUNSET 834 PM MDT
AUGUST 18 2026........SUNRISE 630 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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