Climatological Report (Daily)
Issued by NWS
Issued by NWS
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143
CDUS45 KTFX 210734
CLILWT
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
134 AM MDT THU AUG 21 2025
...................................
...THE LEWISTOWN MT CLIMATE SUMMARY FOR AUGUST 20 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1896 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 86 331 PM 97 1931 80 6 88
MINIMUM 56 526 AM 32 1916 49 7 52
AVERAGE 71 65 6 70
PRECIPITATION (IN)
YESTERDAY T 2.67 1964 0.05 -0.05 0.00
MONTH TO DATE 1.73 1.09 0.64 0.96
SINCE OCT 1 14.24 15.18 -0.94 14.75
SINCE JAN 1 12.87 12.73 0.14 12.29
SNOWFALL (IN)
YESTERDAY MM
SNOW DEPTH MM
DEGREE DAYS
HEATING
YESTERDAY 0 3 -3 0
MONTH TO DATE 18 35 -17 27
SINCE JUN 1 263 326 -63 318
SINCE JUL 1 69 100 -31 75
COOLING
YESTERDAY 6 2 4 5
MONTH TO DATE 61 71 -10 81
SINCE JUN 1 140 189 -49 238
SINCE JAN 1 143 190 -47 238
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 7.5
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 83 500 AM
LOWEST 33 1200 PM
AVERAGE 58
..........................................................
THE LEWISTOWN MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 97 1969
MINIMUM TEMPERATURE (F) 49 29 1904
SUNRISE AND SUNSET
AUGUST 21 2025........SUNRISE 623 AM MDT SUNSET 817 PM MDT
AUGUST 22 2025........SUNRISE 625 AM MDT SUNSET 816 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$