570
CDUS45 KTFX 202240
CLIHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
440 PM MDT SUN SEP 20 2026
...............................
..THE HELENA MT CLIMATE SUMMARY FOR SEPTEMBER 20 2026
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 71 259 PM 90 1922 72 -1 86
MINIMUM 44 616 AM 20 1983 43 1 47
AVERAGE 58 58 0 67
PRECIPITATION (IN)
TODAY 0.00 1.00 1941 0.03 -0.03 0.00
MONTH TO DATE 1.38 0.67 0.71 0.57
SINCE OCT 1 13.86 11.11 2.75 11.95
SINCE JAN 1 11.19 9.28 1.91 11.19
DEGREE DAYS
HEATING
TODAY 7 8 -1 0
MONTH TO DATE 94 111 -17 37
SINCE SEP 1 94 111 -17 37
SINCE JUL 1 118 174 -56 63
COOLING
TODAY 0 0 0 2
MONTH TO DATE 8 27 -19 36
SINCE SEP 1 8 27 -19 36
SINCE JAN 1 493 432 61 467
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 2.1
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 700 AM
LOWEST 38 300 PM
AVERAGE 64
......................................................
THE HELENA MT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 90 1966
1967
MINIMUM TEMPERATURE (F) 43 20 1995
SUNRISE AND SUNSET
SEPTEMBER 20 2026.....SUNRISE 712 AM MDT SUNSET 729 PM MDT
SEPTEMBER 21 2026.....SUNRISE 714 AM MDT SUNSET 727 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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