259
CDUS45 KTFX 190739
CLIHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
139 AM MDT MON MAY 19 2025
...............................
..THE HELENA MT CLIMATE SUMMARY FOR MAY 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 54 443 PM 91 2006 67 -13 67
MINIMUM 46 1159 PM 26 1903 42 4 40
AVERAGE 50 55 -5 54
PRECIPITATION (IN)
YESTERDAY 0.42 1.10 1944 0.06 0.36 0.00
MONTH TO DATE 3.37 0.91 2.46 1.06
SINCE OCT 1 7.04 5.09 1.95 6.78
SINCE JAN 1 6.28 3.26 3.02 5.26
SNOWFALL (IN)
YESTERDAY 0.0 4.6 1903 0.0 0.0 0.0
MONTH TO DATE 0.0 0.1 -0.1 0.5
SINCE MAR 1 1.0 7.6 -6.6 10.2
SINCE JUL 1 36.8 37.2 -0.4 57.9
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 15 10 5 11
MONTH TO DATE 179 236 -57 214
SINCE MAR 1 1413 1748 -335 1575
SINCE JUL 1 6485 7242 -757 6625
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 4 0 4 0
SINCE MAR 1 4 0 4 0
SINCE JAN 1 4 0 4 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 12.4
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 1200 AM
LOWEST 41 800 PM
AVERAGE 65
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THE HELENA MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 90 1954
MINIMUM TEMPERATURE (F) 43 24 1997
SUNRISE AND SUNSET
MAY 19 2025...........SUNRISE 549 AM MDT SUNSET 901 PM MDT
MAY 20 2025...........SUNRISE 548 AM MDT SUNSET 902 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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