057
CDUS45 KTFX 181426
CLILWT
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
826 AM MDT MON MAY 18 2026
...............................
..THE LEWISTOWN MT CLIMATE SUMMARY FOR MAY 17 2026
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1896 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 43 218 PM 87 1948 63 -20 63
MINIMUM 32 1151 PM 27 1930 38 -6 37
AVERAGE 38 50 -12 50
PRECIPITATION (IN)
YESTERDAY 0.15 1.54 1944 0.10 0.05 0.27
MONTH TO DATE 0.45 1.31 -0.86 2.34
SINCE OCT 1 8.01 7.41 0.60 6.51
SINCE JAN 1 5.42 4.96 0.46 5.14
SNOWFALL (IN)
YESTERDAY MM
SNOW DEPTH MM
DEGREE DAYS
HEATING
YESTERDAY 27 14 13 15
MONTH TO DATE 217 294 -77 231
SINCE MAR 1 1765 2014 -249 1796
SINCE JUL 1 6452 7780 -1328 7358
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 2
SINCE MAR 1 0 0 0 2
SINCE JAN 1 0 0 0 2
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 12.1
SKY COVER
AVERAGE SKY COVER MM
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
LIGHT SNOW
RELATIVE HUMIDITY (PERCENT)
HIGHEST MM
LOWEST MM
AVERAGE MM
......................................................
THE LEWISTOWN MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 64 86 1937
MINIMUM TEMPERATURE (F) 38 23 1929
SUNRISE AND SUNSET
MAY 18 2026...........SUNRISE 539 AM MDT SUNSET 851 PM MDT
MAY 19 2026...........SUNRISE 538 AM MDT SUNSET 852 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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