Climatological Report (Monthly)
Issued by NWS Billings, MT

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000
CXUS55 KBYZ 011034
CLMBIL

CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
434 AM MDT SUN OCT 01 2023

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

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

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1934 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART
                VALUE   DATE(S)   VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
HIGHEST           94   09/02
LOWEST            41   09/29
AVG. MAXIMUM    77.5               74.3     3.2
AVG. MINIMUM    52.3               48.6     3.7
MEAN            64.9               61.4     3.5
DAYS MAX >= 90     3
DAYS MAX <= 32     0
DAYS MIN <= 32     0
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
TOTALS          0.57               1.36   -0.79
DAYS >= .01        9
DAYS >= .10        2
DAYS >= .50        0
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.37   09/21 TO 09/22

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     76                168     -92
 SINCE 7/1        92                204    -112
COOLING TOTAL     80                 62      18
 SINCE 1/1       712                657      55
................................................

WIND (MPH)
AVERAGE WIND SPEED              8.6
HIGHEST WIND SPEED/DIRECTION    32/270    DATE  09/18
HIGHEST GUST SPEED/DIRECTION    44/280    DATE  09/18

AVERAGE RH (PERCENT)     50

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              4     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                      11
LIGHT RAIN               11     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       5     FOG W/VIS <= 1/4 MILE      1
HAZE                      3

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

$$


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