597
CDUS45 KTFX 212240
CLIHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
440 PM MDT SUN SEP 21 2025
...............................
..THE HELENA MT CLIMATE SUMMARY FOR SEPTEMBER 21 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 80 221 PM 90 1966 71 9 66
1967
MINIMUM 47 502 AM 20 1995 43 4 37
AVERAGE 64 57 7 52
PRECIPITATION (IN)
TODAY 0.00 1.30 1937 0.03 -0.03 0.00
MONTH TO DATE 0.57 0.70 -0.13 1.23
SINCE OCT 1 11.95 11.14 0.81 10.57
SINCE JAN 1 11.19 9.31 1.88 9.05
DEGREE DAYS
HEATING
TODAY 1 8 -7 13
MONTH TO DATE 38 119 -81 57
SINCE SEP 1 38 119 -81 57
SINCE JUL 1 64 182 -118 69
COOLING
TODAY 0 0 0 0
MONTH TO DATE 36 27 9 62
SINCE SEP 1 36 27 9 62
SINCE JAN 1 467 432 35 580
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 2.3
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 59 600 AM
LOWEST 31 300 PM
AVERAGE 45
......................................................
THE HELENA MT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 89 1966
MINIMUM TEMPERATURE (F) 43 21 1934
SUNRISE AND SUNSET
SEPTEMBER 21 2025.....SUNRISE 714 AM MDT SUNSET 727 PM MDT
SEPTEMBER 22 2025.....SUNRISE 715 AM MDT SUNSET 725 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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