045
CXUS55 KBYZ 012114
CLMBIL

CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
314 PM MDT WED OCT 01 2025

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

...THE BILLINGS MT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1934 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART
                VALUE   DATE(S)   VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
HIGHEST           92   09/02
LOWEST            43   09/06
AVG. MAXIMUM    78.8               74.3     4.5
AVG. MINIMUM    52.6               48.6     4.0
MEAN            65.7               61.4     4.3
DAYS MAX >= 90     2
DAYS MAX <= 32     0
DAYS MIN <= 32     0
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
TOTALS          0.94               1.36   -0.42
DAYS >= .01        6
DAYS >= .10        4
DAYS >= .50        0
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.41   09/13 TO 09/13

SNOWFALL (INCHES)
TOTALS           0.0                0.3    -0.3
SINCE 7/1          T                0.3    -0.3
SNOWDEPTH AVG.     0
DAYS >= TRACE      0
DAYS >= 1.0        0
GREATEST
 SNOW DEPTH        0
 24 HR TOTAL      MM

DEGREE DAYS
HEATING TOTAL     47                168    -121
 SINCE 7/1        63                204    -141
COOLING TOTAL     73                 62      11
 SINCE 1/1       658                657       1
................................................

WIND (MPH)
AVERAGE WIND SPEED              8.5
HIGHEST WIND SPEED/DIRECTION    38/270    DATE  09/07
HIGHEST GUST SPEED/DIRECTION    57/270    DATE  09/07

AVERAGE RH (PERCENT)     50

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              6     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       4
LIGHT RAIN                9     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       3     FOG W/VIS <= 1/4 MILE      0
HAZE                      4

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

$$