550
CDUS45 KTFX 170735
CLIHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
135 AM MDT WED SEP 17 2025
...............................
..THE HELENA MT CLIMATE SUMMARY FOR SEPTEMBER 16 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 71 352 PM 92 2009 73 -2 77
MINIMUM 52 1159 PM 27 1965 45 7 55
AVERAGE 62 59 3 66
PRECIPITATION (IN)
YESTERDAY 0.08 1.30 1947 0.03 0.05 0.01
MONTH TO DATE 0.57 0.54 0.03 1.00
SINCE OCT 1 11.95 10.98 0.97 10.34
SINCE JAN 1 11.19 9.15 2.04 8.82
SNOWFALL (IN)
YESTERDAY 0.0 0.3 1947 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.3 -0.3 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 3 7 -4 0
MONTH TO DATE 26 81 -55 23
SINCE SEP 1 26 81 -55 23
SINCE JUL 1 52 144 -92 35
COOLING
YESTERDAY 0 1 -1 1
MONTH TO DATE 34 24 10 62
SINCE SEP 1 34 24 10 62
SINCE JAN 1 465 429 36 580
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WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SE (130)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION SE (120)
AVERAGE WIND SPEED 6.6
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 100 AM
LOWEST 49 500 PM
AVERAGE 71
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THE HELENA MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 90 1998
MINIMUM TEMPERATURE (F) 44 20 1965
SUNRISE AND SUNSET
SEPTEMBER 17 2025.....SUNRISE 709 AM MDT SUNSET 735 PM MDT
SEPTEMBER 18 2025.....SUNRISE 710 AM MDT SUNSET 733 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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