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399
CDUS45 KTFX 170735
CLIGTF

CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
135 AM MDT MON AUG 17 2026

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

...THE GREAT FALLS MT CLIMATE SUMMARY FOR AUGUST 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         83    240 PM 101    2013  84     -1       94
  MINIMUM         58   1159 PM  39    2002  51      7       52
  AVERAGE         71                        67      4       73

PRECIPITATION (IN)
  YESTERDAY        T             0.87 1985   0.04  -0.04     0.13
  MONTH TO DATE    1.18                      0.57   0.61     0.41
  SINCE OCT 1     15.54                     12.78   2.76    10.93
  SINCE JAN 1     13.70                     10.50   3.20     9.85

SNOWFALL (IN)
  YESTERDAY        0.0           0.0  2002   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.1   -0.1      0.0
  SINCE JUN 1      0.0                       0.4   -0.4      0.0
  SINCE JUL 1      0.0                       0.1   -0.1      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         2     -2        0
  MONTH TO DATE   37                        20     17        9
  SINCE JUN 1    275                       261     14      182
  SINCE JUL 1     47                        68    -21       39

 COOLING
  YESTERDAY        6                         4      2        8
  MONTH TO DATE   44                        80    -36       71
  SINCE JUN 1    283                       240     43      234
  SINCE JAN 1    303                       243     60      248
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    28   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    35   HIGHEST GUST DIRECTION     W (260)
  AVERAGE WIND SPEED     8.5


SKY COVER
  AVERAGE SKY COVER 0.2


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  THUNDERSTORM
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    75          1100 PM
 LOWEST     27           200 PM
 AVERAGE    51

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


THE GREAT FALLS MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   83       101      2023
 MINIMUM TEMPERATURE (F)   50        36      2002


SUNRISE AND SUNSET
AUGUST 17 2026........SUNRISE   624 AM MDT   SUNSET   834 PM MDT
AUGUST 18 2026........SUNRISE   626 AM MDT   SUNSET   832 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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