Climatological Report (Daily)
Issued by NWS
Issued by NWS
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920
CDUS45 KTFX 190731
CLIHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
131 AM MDT FRI SEP 19 2025
...................................
...THE HELENA MT CLIMATE SUMMARY FOR SEPTEMBER 18 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 78 504 PM 91 1966 73 5 63
MINIMUM 45 621 AM 19 1965 44 1 56
AVERAGE 62 58 4 60
PRECIPITATION (IN)
YESTERDAY 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
SNOWFALL (IN)
YESTERDAY 0.0 13.1 1957 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 3 7 -4 5
MONTH TO DATE 34 95 -61 37
SINCE SEP 1 34 95 -61 37
SINCE JUL 1 60 158 -98 49
COOLING
YESTERDAY 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 10 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 2.2
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 700 AM
LOWEST 28 600 PM
AVERAGE 61
..........................................................
THE HELENA MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 94 2009
MINIMUM TEMPERATURE (F) 44 25 1965
SUNRISE AND SUNSET
SEPTEMBER 19 2025.....SUNRISE 711 AM MDT SUNSET 731 PM MDT
SEPTEMBER 20 2025.....SUNRISE 713 AM MDT SUNSET 729 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$