Climatological Report (Daily)
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CDUS45 KTFX 210744
CLILWT

CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
144 AM MDT TUE JUL 21 2026

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

...THE LEWISTOWN MT CLIMATE SUMMARY FOR JULY 20 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         MM        MM  96    1934  83     MM       76
                                      2003
  MINIMUM         MM        MM  36    1900  52     MM       53
  AVERAGE         MM                        68     MM       65

PRECIPITATION (IN)
  YESTERDAY        0.00          1.14 1961   0.06  -0.06     0.14
  MONTH TO DATE    1.73                      1.24   0.49     1.20
  SINCE OCT 1     15.66                     13.57   2.09    11.19
  SINCE JAN 1     13.07                     11.12   1.95     9.82

SNOWFALL (IN)
  YESTERDAY       MM
  SNOW DEPTH      MM

DEGREE DAYS
 HEATING
  YESTERDAY       MM                         1     MM        0
  MONTH TO DATE    7                        54    -47       41
  SINCE JUN 1    294                       280     14      235
  SINCE JUL 1      7                        54    -47       41

 COOLING
  YESTERDAY       MM                         4     MM        0
  MONTH TO DATE   66                        57      9       58
  SINCE JUN 1     69                        74     -5       61
  SINCE JAN 1     82                        75      7       64
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    MM   HIGHEST WIND DIRECTION    MM
  HIGHEST GUST SPEED    MM   HIGHEST GUST DIRECTION    MM
  AVERAGE WIND SPEED    MM


SKY COVER
  AVERAGE SKY COVER  MM


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    MM
 LOWEST     MM
 AVERAGE    MM

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


THE LEWISTOWN MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   84       101      1931
 MINIMUM TEMPERATURE (F)   52        33      1926


SUNRISE AND SUNSET
JULY 21 2026..........SUNRISE   544 AM MDT   SUNSET   904 PM MDT
JULY 22 2026..........SUNRISE   545 AM MDT   SUNSET   903 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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