Climatological Report (Daily)
Issued by NWS
Issued by NWS
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841
CDUS45 KTFX 210734
CLIHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
134 AM MDT SUN SEP 21 2025
...................................
...THE HELENA MT CLIMATE SUMMARY FOR SEPTEMBER 20 2025...
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)
YESTERDAY
MAXIMUM 86 432 PM 90 1922 72 14 74
MINIMUM 47 639 AM 20 1983 43 4 46
AVERAGE 67 58 9 60
PRECIPITATION (IN)
YESTERDAY 0.00 1.00 1941 0.03 -0.03 0.00
MONTH TO DATE 0.57 0.67 -0.10 1.23
SINCE OCT 1 11.95 11.11 0.84 10.57
SINCE JAN 1 11.19 9.28 1.91 9.05
SNOWFALL (IN)
YESTERDAY 0.0 1.4 1968 0.0 0.0 0.0
MONTH TO DATE 0.0 0.1 -0.1 0.0
SINCE SEP 1 0.0 0.1 -0.1 0.0
SINCE JUL 1 0.0 0.4 -0.4 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 8 -8 5
MONTH TO DATE 37 111 -74 44
SINCE SEP 1 37 111 -74 44
SINCE JUL 1 63 174 -111 56
COOLING
YESTERDAY 2 0 2 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 20 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 3.5
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 77 400 AM
LOWEST 14 500 PM
AVERAGE 46
..........................................................
THE HELENA MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 90 1966
1967
MINIMUM TEMPERATURE (F) 43 20 1995
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.
$$