Climatological Report (Monthly)
Issued by NWS Billings, MT

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000
CXUS55 KBYZ 011632 RRA
CLMMLS

CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
419 AM MST THU JAN 1 2015

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

...THE MILES CITY MT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1937 TO 2014

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
HIGHEST            54   12/13
LOWEST            -19   12/30
AVG. MAXIMUM     34.7              30.9     3.8
AVG. MINIMUM     17.4               9.7     7.7
MEAN             26.1              20.3     5.8
DAYS MAX >= 90      0
DAYS MAX <= 32     13
DAYS MIN <= 32     31
DAYS MIN <= 0       4

PRECIPITATION (INCHES)
TOTALS           0.18              0.29   -0.11
DAYS >= .01         4
DAYS >= .10         0
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.08   12/24 TO 12/24

DEGREE_DAYS
HEATING TOTAL    1201              1385    -184
 SINCE 7/1       3031              3184    -153
COOLING TOTAL       0                 0       0
 SINCE 1/1        648               730     -82
.................................................

WIND (MPH)
AVERAGE WIND SPEED              8.8
HIGHEST WIND SPEED/DIRECTION    33/330    DATE  12/22
HIGHEST GUST SPEED/DIRECTION    42/290    DATE  12/07

AVERAGE RH (PERCENT)     76

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                3     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                5     SLEET                      0
FOG                       7     FOG W/VIS <= 1/4 MILE      0
HAZE                      0

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

&&

THIS IS AN AUTOMATED...UNATTENDED WEATHER STATION AND MAY
UNDERESTIMATE WINTER PRECIPITATION.

...DECEMBER 2014 MONTH IN REVIEW FOR MILES CITY...

BELOW IS A SUMMARY OF THE TEMPERATURE AND PRECIPITATION
STATISTICS FOR MILES CITY FOR DECEMBER 2014. ALL TEMPERATURES ARE IN
DEGREES FAHRENHEIT AND ALL PRECIPITATION AMOUNTS ARE IN INCHES. NORMALS
ARE 30 YEAR AVERAGES CALCULATED FROM 1981 TO 2010. MONTHLY RANKINGS
FOR PRECIPITATION...SNOWFALL...AND TEMPERATURES USE A PERIOD OF RECORD
THAT STARTED IN FEBRUARY 1937 AT THE MILES CITY AIRPORT.

NUMBERS DENOTED WITH AN * IS MISSING DATA IN THE CALCULATION.

...MILES CITY MONTHLY PRECIPITATION...

 MONTH   2014 VALUES  NORMALS    DEPARTURE  RANKING

DECEMBER     0.18     0.29       -0.11      TIED FOR THE 21ST DRIEST OUT OF 77 YEARS
                                            (RECORD DRIEST WAS 0.02 TIED IN 2001)
                                            (DRIEST SINCE 0.07 IN 2010)

...MILES CITY DECEMBER 2014 BROKEN OR TIED DAILY PRECIPITATION RECORDS...

NONE

NOTE: SINCE THE LATE 1990S...MILES CITY BECAME AN AUTOMATED AND UNATTENDED
WEATHER STATION. PRECIPITATION AMOUNTS IN THE WINTER MAY BE UNDERESTIMATED.

...MILES CITY AVERAGE TEMPERATURES...

 MONTH   2014 VALUES  NORMALS   DEPARTURE  RANKING

DECEMBER     26.1      20.3      +5.8      TIED FOR THE 25TH WARMEST OUT OF 77 YEARS
                                           (RECORD WARMEST WAS 33.3 IN 1957)
                                           (WARMEST SINCE 29.2 IN 2011)

...MILES CITY AVERAGE HIGH TEMPERATURES...

 MONTH   2014 VALUES  NORMALS   DEPARTURE  RANKING

DECEMBER     34.7      30.9      +3.8      33RD WARMEST OUT OF 77 YEARS
                                           (RECORD WARMEST WAS 45.0 IN 1957)
                                           (WARMEST SINCE 40.3 IN 2011)

...MILES CITY DECEMBER 2014 BROKEN OR TIED WARMEST DAILY HIGH TEMPERATURE RECORDS...

54 ON DECEMBER 13 (TIED RECORD IN 1988)

...MILES CITY DECEMBER 2014 BROKEN OR TIED COLDEST DAILY HIGH TEMPERATURE RECORDS...

NONE

...MILES CITY AVERAGE LOW TEMPERATURES...

 MONTH   2014 VALUES  NORMALS   DEPARTURE  RANKING

DECEMBER     17.4      9.7      +7.7      10TH WARMEST OUT OF 77 YEARS
                                           (RECORD WARMEST WAS 22.4 IN 1999)
                                           (WARMEST SINCE 18.0 IN 2011)

...MILES CITY DECEMBER 2014 BROKEN OR TIED WARMEST DAILY LOW TEMPERATURE RECORDS...

32 ON DECEMBER 13 (OLD RECORD 31 IN 1969)

...MILES CITY DECEMBER 2014 BROKEN OR TIED COLDEST DAILY LOW TEMPERATURE RECORDS...

NONE

$$


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