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Climatological Report (Annual)
Issued by NWS Billings, MT

000
CXUS55 KBYZ 021703
CLABIL


CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
936 AM MST MON JAN 2 2012

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

...THE BILLINGS MT CLIMATE SUMMARY FOR THE YEAR OF 2011...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1934 TO 2012

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH             108   07/14/2002
 LOW              -38   02/15/1936
HIGHEST           100   08/27
LOWEST            -15   02/01
AVG. MAXIMUM     58.1              59.5    -1.4
AVG. MINIMUM     36.4              36.8    -0.4
MEAN             47.3              48.2    -0.9
DAYS MAX >= 90     32                       3.6
DAYS MAX <= 32     39                       2.1
DAYS MIN <= 32    149                      11.0
DAYS MIN <= 0      16                       2.5

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        26.81   1978
 MINIMUM         7.90   1948
TOTALS          19.54             13.66    5.88
DAYS >= .01       101
DAYS >= .10        37
DAYS >= .50         8
DAYS >= 1.00        5
GREATEST
 24 HR. TOTAL    3.12   05/24 TO 05/24

SNOWFALL (INCHES)
RECORDS
 TOTAL          127.9   1955
TOTALS           42.4              55.0   -12.6
DAYS >= TRACE      77              38.7    38.3
DAYS >= 1.0        11              17.4    -6.4
GREATEST
 SNOW DEPTH         9   01/02
                        01/01
 24 HR TOTAL      6.3   02/07 TO 02/07

DEGREE_DAYS
HEATING TOTAL    7043              6781     262
 SINCE 7/1       2439              2821    -382
COOLING TOTAL     734               637      97

FREEZE DATES
RECORD
 EARLIEST     09/04/1962
 LATEST       06/13/1969
EARLIEST         10/25          10/04
LATEST           04/25          05/07
.................................................

WIND (MPH)
AVERAGE WIND SPEED              11.0
RESULTANT WIND SPEED/DIRECTION   5/260
HIGHEST WIND SPEED/DIRECTION    51/290    DATE  12/29
HIGHEST GUST SPEED/DIRECTION    64/310    DATE  09/19


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             36     MIXED PRECIP               2
HEAVY RAIN               10     RAIN                      23
LIGHT RAIN              103     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                      12
HEAVY SNOW                1     SNOW                      17
LIGHT SNOW               65     SLEET                      3
FOG                      94     FOG W/VIS <= 1/4 MILE     11
HAZE                     18

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

$$