Climatological Report (Annual)
Issued by NWS Billings, MT

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000
CXUS55 KBYZ 011603
CLABIL

CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
903 AM MST SAT JAN 01 2022

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

...THE BILLINGS MT CLIMATE SUMMARY FOR THE YEAR OF 2021...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1934 TO 2021

WEATHER         OBSERVED          NORMAL  DEPART
                VALUE   DATE(S)   VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH            108   07/14/2002
 LOW             -38   02/15/1936
HIGHEST          107   07/19
LOWEST           -22   02/14
AVG. MAXIMUM    61.7               59.4     2.3
AVG. MINIMUM    38.0               37.0     1.0
MEAN            49.9               48.2     1.7
DAYS MAX >= 90    55                       23.0
DAYS MAX <= 32    33                       -6.5
DAYS MIN <= 32   143                        1.5
DAYS MIN <= 0     17                        4.2

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       26.81   1978
 MINIMUM        6.86   2012
TOTALS         10.13              14.31   -4.18
DAYS >= .01       94                       -2.9
DAYS >= .10       27                      -11.6
DAYS >= .50        4                       -2.0
DAYS >= 1.00       0                       -1.4

SNOWFALL (INCHES)
RECORDS
 TOTAL         127.9   1955
TOTALS          46.7               57.4   -10.7
DAYS >= 1.0       12               18.1    -6.1
GREATEST
 SNOW DEPTH       12   02/07

DEGREE DAYS
HEATING TOTAL   6401               6754    -353
COOLING TOTAL   1042                663     379

FREEZE DATES
RECORD
 EARLIEST     09/04/1962
 LATEST       06/13/1969
EARLIEST                        10/11
LATEST                          05/22
................................................

WIND (MPH)
AVERAGE WIND SPEED              10.4
RESULTANT WIND SPEED/DIRECTION   4/270
HIGHEST WIND SPEED/DIRECTION    56/300    DATE  01/13
                                56/300          07/07
HIGHEST GUST SPEED/DIRECTION    73/300    DATE  07/07


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             29     MIXED PRECIP               0
HEAVY RAIN                9     RAIN                      21
LIGHT RAIN              106     FREEZING RAIN              0
LT FREEZING RAIN          2     HAIL                       2
HEAVY SNOW                4     SNOW                      11
LIGHT SNOW               77     SLEET                      1
FOG                      72     FOG W/VIS <= 1/4 MILE     13
HAZE                     45

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

$$


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