CDUS45 KTFX 150833
CLILWT

CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
133 AM MST MON DEC 15 2025

...................................

...THE LEWISTOWN MT CLIMATE SUMMARY FOR DECEMBER 14 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         48   1252 PM  60    1924  35     13       45
  MINIMUM         35   1217 AM -29    2008  14     21       28
  AVERAGE         42                        24     18       37

PRECIPITATION (IN)
  YESTERDAY        0.00          0.90 1906   0.01  -0.01     0.00
  MONTH TO DATE    0.90                      0.21   0.69     0.15
  SINCE OCT 1      2.46                      2.15   0.31     1.06
  SINCE JAN 1     16.93                     16.87   0.06    19.57

SNOWFALL (IN)
  YESTERDAY       MM
  SNOW DEPTH      MM

DEGREE DAYS
 HEATING
  YESTERDAY       23                        41    -18       28
  MONTH TO DATE  526                       552    -26      430
  SINCE DEC 1    526                       552    -26      430
  SINCE JUL 1   2165                      2643   -478     2121

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    163                       229    -66      298
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    30   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    36   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED    19.6


SKY COVER
  AVERAGE SKY COVER 0.0


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    56          1200 AM
 LOWEST     35          1100 AM
 AVERAGE    46

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THE LEWISTOWN MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   35        62      1980
 MINIMUM TEMPERATURE (F)   13       -29      1964


SUNRISE AND SUNSET
DECEMBER 15 2025......SUNRISE   757 AM MST   SUNSET   429 PM MST
DECEMBER 16 2025......SUNRISE   758 AM MST   SUNSET   429 PM MST


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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