790
CDUS45 KTFX 180732
CLIHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
132 AM MDT THU SEP 18 2025
...............................
..THE HELENA MT CLIMATE SUMMARY FOR SEPTEMBER 17 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 74 442 PM 90 1998 73 1 62
MINIMUM 45 706 AM 20 1965 44 1 50
AVERAGE 60 59 1 56
PRECIPITATION (IN)
YESTERDAY 0.00 0.98 1908 0.03 -0.03 0.19
MONTH TO DATE 0.57 0.57 0.00 1.19
SINCE OCT 1 11.95 11.01 0.94 10.53
SINCE JAN 1 11.19 9.18 2.01 9.01
SNOWFALL (IN)
YESTERDAY 0.0 3.4 1988 0.1 -0.1 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 5 7 -2 9
MONTH TO DATE 31 88 -57 32
SINCE SEP 1 31 88 -57 32
SINCE JUL 1 57 151 -94 44
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 34 25 9 62
SINCE SEP 1 34 25 9 62
SINCE JAN 1 465 430 35 580
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SE (120)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 3.7
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 700 AM
LOWEST 39 500 PM
AVERAGE 68
......................................................
THE HELENA MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 91 1966
MINIMUM TEMPERATURE (F) 44 19 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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