938
CDUS45 KTFX 182240
CLIHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
440 PM MDT THU SEP 18 2025
...............................
..THE HELENA MT CLIMATE SUMMARY FOR SEPTEMBER 18 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 77 259 PM 91 1966 73 4 63
MINIMUM 45 621 AM 19 1965 44 1 56
AVERAGE 61 58 3 60
PRECIPITATION (IN)
TODAY 0.00 2.10 1882 0.03 -0.03 0.04
MONTH TO DATE 0.57 0.60 -0.03 1.23
SINCE OCT 1 11.95 11.04 0.91 10.57
SINCE JAN 1 11.19 9.21 1.98 9.05
DEGREE DAYS
HEATING
TODAY 4 7 -3 5
MONTH TO DATE 35 95 -60 37
SINCE SEP 1 35 95 -60 37
SINCE JUL 1 61 158 -97 49
COOLING
TODAY 0 1 -1 0
MONTH TO DATE 34 26 8 62
SINCE SEP 1 34 26 8 62
SINCE JAN 1 465 431 34 580
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 1.7
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 700 AM
LOWEST 30 300 PM
AVERAGE 62
......................................................
THE HELENA MT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 94 2009
MINIMUM TEMPERATURE (F) 44 25 1965
SUNRISE AND SUNSET
SEPTEMBER 18 2025.....SUNRISE 710 AM MDT SUNSET 733 PM MDT
SEPTEMBER 19 2025.....SUNRISE 711 AM MDT SUNSET 731 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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