335
CXUS55 KBYZ 011041
CLMBIL

CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
441 AM MDT THU OCT 01 2026

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

...THE BILLINGS MT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1934 TO 2026

WEATHER         OBSERVED          NORMAL  DEPART
                VALUE   DATE(S)   VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
HIGHEST           92   09/04
LOWEST            43   09/15
AVG. MAXIMUM    75.6               74.3     1.3
AVG. MINIMUM    50.9               48.6     2.3
MEAN            63.2               61.4     1.8
DAYS MAX >= 90     1
DAYS MAX <= 32     0
DAYS MIN <= 32     0
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
TOTALS          4.63               1.36    3.27
DAYS >= .01        7
DAYS >= .10        5
DAYS >= .50        3
DAYS >= 1.00       3
GREATEST
 24 HR. TOTAL   2.89   09/18 TO 09/19

SNOWFALL (INCHES)
TOTALS           0.0                0.3    -0.3
SINCE 7/1        0.0                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     95                168     -73
 SINCE 7/1       103                204    -101
COOLING TOTAL     50                 62     -12
 SINCE 1/1       837                657     180
................................................

WIND (MPH)
AVERAGE WIND SPEED              9.0
HIGHEST WIND SPEED/DIRECTION    43/270    DATE  09/07
HIGHEST GUST SPEED/DIRECTION    56/270    DATE  09/14

AVERAGE RH (PERCENT)     54

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              4     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       2
LIGHT RAIN                9     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      2
HAZE                      1

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

$$