120
CDUS45 KTFX 180733
CLIHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
133 AM MDT TUE AUG 18 2026
...............................
..THE HELENA MT CLIMATE SUMMARY FOR AUGUST 17 2026
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1866 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 84 544 PM 102 2023 85 -1 76
MINIMUM 55 614 AM 38 1985 53 2 58
2002
AVERAGE 70 69 1 67
PRECIPITATION (IN)
YESTERDAY 0.00 0.74 2021 0.03 -0.03 0.14
MONTH TO DATE 0.57 0.59 -0.02 1.36
SINCE OCT 1 11.71 9.99 1.72 10.72
SINCE JAN 1 9.04 8.16 0.88 9.96
SNOWFALL (IN)
YESTERDAY 0.0 0.0 1995 0.0 0.0 0.0
1999
MONTH TO DATE 0.0 0.1 -0.1 0.0
SINCE JUN 1 0.0 0.1 -0.1 0.0
SINCE JUL 1 0.0 0.1 -0.1 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 11 8 3 11
SINCE JUN 1 185 175 10 134
SINCE JUL 1 18 31 -13 23
COOLING
YESTERDAY 5 5 0 2
MONTH TO DATE 88 108 -20 91
SINCE JUN 1 378 350 28 331
SINCE JAN 1 398 357 41 356
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 5.1
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 77 600 AM
LOWEST 27 400 PM
AVERAGE 52
......................................................
THE HELENA MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 84 100 2001
MINIMUM TEMPERATURE (F) 53 39 1954
1995
SUNRISE AND SUNSET
AUGUST 18 2026........SUNRISE 630 AM MDT SUNSET 832 PM MDT
AUGUST 19 2026........SUNRISE 631 AM MDT SUNSET 831 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page