000
CXUS55 KTFX 011442
CLMHLN

CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
842 AM MDT SUN OCT 01 2023

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

...THE HELENA MT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1866 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            102   09/07/2022
 LOW               6   09/24/1926
HIGHEST           92   09/02         77      15      102  09/07
LOWEST            36   09/28         36       0       36  09/10
AVG. MAXIMUM    75.3               73.3     2.0     78.9
AVG. MINIMUM    48.5               44.6     3.9     49.5
MEAN            61.9               58.9     3.0     64.2
DAYS MAX >= 90     1                1.8    -0.8        7
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                1.7    -1.7        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        3.66   1882
 MINIMUM        0.00
TOTALS          2.70               0.96    1.74     1.95
DAYS >= .01       10                5.8     4.2
DAYS >= .10        5                2.7     2.3
DAYS >= .50        2                0.6     1.4
DAYS >= 1.00       1                0.1     0.9
GREATEST
 24 HR. TOTAL   1.26   09/22 TO 09/22

SNOWFALL (INCHES)
RECORDS
 TOTAL          14.2   1925
 24 HR TOTAL    13.3   09/17/1957 TO 09/18/1957
TOTALS           0.0                0.2    -0.2      0.0
SINCE 7/1        0.0                0.5    -0.5
SNOWDEPTH AVG.     0
DAYS >= TRACE      0                0.0     0.0
DAYS >= 1.0        0                0.0     0.0
GREATEST
 SNOW DEPTH        0
 24 HR TOTAL      MM

DEGREE DAYS
HEATING TOTAL    121                210     -89      101
 SINCE 7/1       125                273    -148       MM
COOLING TOTAL     36                 28       8       83
 SINCE 1/1       588                433     155       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.3
HIGHEST WIND SPEED/DIRECTION    31/310    DATE  09/27
HIGHEST GUST SPEED/DIRECTION    42/280    DATE  09/27

SKY COVER
AVERAGE SKY COVER           0.28

AVERAGE RH (PERCENT)     55

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       4
LIGHT RAIN               11     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       6     FOG W/VIS <= 1/4 MILE      1
HAZE                      4

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

$$