Climatological Report (Daily)
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374
CDUS45 KTFX 170733
CLIHLN

CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
133 AM MDT FRI OCT 17 2025

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

...THE HELENA MT CLIMATE SUMMARY FOR OCTOBER 16 2025...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1866 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         49    404 PM  80    1927  58     -9       74
                                      1991
  MINIMUM         32    517 AM  12    1946  33     -1       37
  AVERAGE         41                        45     -4       56

PRECIPITATION (IN)
  YESTERDAY        0.00          0.39 1908   0.02  -0.02     0.00
  MONTH TO DATE    1.30                      0.42   0.88      T
  SINCE OCT 1      1.30                      0.42   0.88      T
  SINCE JAN 1     12.52                      9.99   2.53     9.05

SNOWFALL (IN)
  YESTERDAY        0.0           3.7  1908   0.1   -0.1      0.0
  MONTH TO DATE    4.2                       1.0    3.2      0.0
  SINCE SEP 1      4.2                       1.2    3.0      0.0
  SINCE JUL 1      4.2                       1.5    2.7      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       24                        20      4        9
  MONTH TO DATE  282                       256     26      125
  SINCE SEP 1    354                       466   -112      208
  SINCE JUL 1    380                       529   -149      220

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE SEP 1     36                        28      8       72
  SINCE JAN 1    467                       433     34      590
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED     7.5


SKY COVER
  AVERAGE SKY COVER 0.4


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92          1200 AM
 LOWEST     54           300 PM
 AVERAGE    73

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


THE HELENA MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   57        80      2003
 MINIMUM TEMPERATURE (F)   33        11      1905
                                             1930


SUNRISE AND SUNSET
OCTOBER 17 2025.......SUNRISE   749 AM MDT   SUNSET   637 PM MDT
OCTOBER 18 2025.......SUNRISE   750 AM MDT   SUNSET   635 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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