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187
CDUS45 KTFX 170754
CLIGTF

CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
154 AM MDT THU SEP 17 2026

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

...THE GREAT FALLS MT CLIMATE SUMMARY FOR SEPTEMBER 16 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1886 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         64    343 PM  91    2009  72     -8       72
  MINIMUM         40    331 AM  27    1965  43     -3       50
  AVERAGE         52                        57     -5       61

PRECIPITATION (IN)
  YESTERDAY        0.00          0.74 1959   0.05  -0.05      T
  MONTH TO DATE    0.96                      0.73   0.23     0.26
  SINCE OCT 1     16.76                     14.16   2.60    11.39
  SINCE JAN 1     14.92                     11.88   3.04    10.31

SNOWFALL (IN)
  YESTERDAY        0.0           1.3  2006   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.1   -0.1      0.0
  SINCE SEP 1      0.0                       0.1   -0.1      0.0
  SINCE JUL 1      0.0                       0.4   -0.4      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       13                         8      5        4
  MONTH TO DATE  104                       104      0       39
  SINCE SEP 1    104                       104      0       39
  SINCE JUL 1    166                       218    -52       82

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE    8                        20    -12       26
  SINCE SEP 1      8                        20    -12       26
  SINCE JAN 1    378                       303     75      325
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION    SE (130)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION    NE (40)
  AVERAGE WIND SPEED     5.8


SKY COVER
  AVERAGE SKY COVER 0.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           300 AM
 LOWEST     48           400 PM
 AVERAGE    74

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


THE GREAT FALLS MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   71        92      2009
 MINIMUM TEMPERATURE (F)   43        26      1965


SUNRISE AND SUNSET
SEPTEMBER 17 2026.....SUNRISE   706 AM MDT   SUNSET   733 PM MDT
SEPTEMBER 18 2026.....SUNRISE   707 AM MDT   SUNSET   731 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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