172
CDUS45 KTFX 172240
CLILWT
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
440 PM MDT WED SEP 17 2025
...............................
..THE LEWISTOWN MT CLIMATE SUMMARY FOR SEPTEMBER 17 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 72 259 PM 91 2009 70 2 75
MINIMUM 45 633 AM 23 1965 41 4 47
AVERAGE 59 56 3 61
PRECIPITATION (IN)
TODAY 0.00 0.93 1946 0.04 -0.04 0.62
MONTH TO DATE 0.92 0.78 0.14 1.71
SINCE OCT 1 15.81 16.56 -0.75 16.61
SINCE JAN 1 14.44 14.11 0.33 14.15
DEGREE DAYS
HEATING
TODAY 6 10 -4 4
MONTH TO DATE 71 130 -59 46
SINCE SEP 1 71 130 -59 46
SINCE JUL 1 145 276 -131 151
COOLING
TODAY 0 0 0 0
MONTH TO DATE 11 14 -3 36
SINCE SEP 1 11 14 -3 36
SINCE JAN 1 163 224 -61 288
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 2.8
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100
LOWEST 41
AVERAGE 71
......................................................
THE LEWISTOWN MT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 90 1966
MINIMUM TEMPERATURE (F) 41 19 1965
SUNRISE AND SUNSET
SEPTEMBER 17 2025.....SUNRISE 659 AM MDT SUNSET 725 PM MDT
SEPTEMBER 18 2025.....SUNRISE 700 AM MDT SUNSET 723 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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