Climatological Report (Monthly)
Issued by NWS Billings, MT

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000
CXUS55 KBYZ 012349 CCA
CLMBIL

CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
458 AM MST SUN FEB 1 2015

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

...THE BILLINGS MT CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1934 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
HIGHEST            67   01/27
LOWEST             -7   01/09
AVG. MAXIMUM     39.0              36.4     2.6
AVG. MINIMUM     20.6              17.8     2.8
MEAN             29.8              27.1     2.7
DAYS MAX >= 90      0
DAYS MAX <= 32     10
DAYS MIN <= 32     25
DAYS MIN <= 0       1

PRECIPITATION (INCHES)
TOTALS           1.09              0.48    0.61
DAYS >= .01         8
DAYS >= .10         4
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.30   01/02 TO 01/03

SNOWFALL (INCHES)
TOTALS           18.7               8.4    10.3
SINCE 7/1        40.3              28.3    12.0
SNOWDEPTH AVG.      6
DAYS >= TRACE      11
DAYS >= 1.0         5
GREATEST
 SNOW DEPTH        14   01/07
                        01/06
 24 HR TOTAL      6.0   01/03 TO 01/03

DEGREE_DAYS
HEATING TOTAL    1082              1175     -93
 SINCE 7/1       3765              3996    -231
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0
.................................................

WIND (MPH)
AVERAGE WIND SPEED              14.5
HIGHEST WIND SPEED/DIRECTION    40/280    DATE  01/24
HIGHEST GUST SPEED/DIRECTION    51/290    DATE  01/24

AVERAGE RH (PERCENT)     64

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

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

&&

...JANUARY 2015 MONTH IN REVIEW FOR BILLINGS...

BELOW IS A SUMMARY OF THE TEMPERATURE...PRECIPITATION...AND WIND
STATISTICS FOR BILLINGS FOR JANUARY 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 AUGUST 1934 AT THE BILLINGS AIRPORT. MONTHLY RANKINGS
FOR WIND USE A PERIOD OF RECORD THAT STARTED IN 1984.

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

...BILLINGS MONTHLY PRECIPITATION...

 MONTH   2015 VALUES  NORMALS    DEPARTURE  RANKING

JANUARY      1.02     0.48       +0.54      TIED FOR THE 17TH WETTEST OUT OF 80 YEARS
                                            (RECORD WETTEST WAS 2.35 IN 1972)
                                            (WETTEST SINCE 1.09 IN
2010)

...BILLINGS JANUARY 2015 BROKEN OR TIED DAILY PRECIPITATION
RECORDS...

0.18 ON JANUARY  4 (OLD RECORD 0.15 IN 1977)
0.22 ON JANUARY 31 (OLD RECORD 0.21 IN 1939)

...BILLINGS MONTHLY SNOWFALL...

 MONTH   2015 VALUES  NORMALS    DEPARTURE  RANKING

JANUARY      18.2       8.4       +9.8      TIED FOR THE 11TH SNOWIEST OUT OF 80 YEARS
                                            (RECORD SNOWIEST WAS 27.7 IN 1963)
                                            (SNOWIEST SINCE 18.2 IN 2010)

...BILLINGS JANUARY 2015 BROKEN OR TIED DAILY SNOWFALL RECORDS...

5.0 ON JANUARY  1 (TIED RECORD IN 1943)
3.8 ON JANUARY  4 (OLD RECORD 1.9 IN 1977)
5.2 ON JANUARY 30 (OLD RECORD 3.9 IN 1974)

...BILLINGS AVERAGE TEMPERATURES...

 MONTH   2015 VALUES  NORMALS   DEPARTURE  RANKING

JANUARY      30.5      27.1      +3.4      TIED FOR THE 16TH WARMEST OUT OF 80 YEARS
                                           (RECORD WARMEST WAS 38.0 IN 2006)
                                           (WARMEST SINCE 30.5 IN 2012)

...BILLINGS AVERAGE HIGH TEMPERATURES...

 MONTH   2015 VALUES  NORMALS   DEPARTURE  RANKING

JANUARY      39.2      36.4      +2.8      TIED FOR THE 19TH WARMEST OUT OF 80 YEARS
                                           (RECORD WARMEST WAS 47.3 IN 2006)
                                           (WARMEST SINCE 40.7 IN
2012)

...BILLINGS JANUARY 2015 BROKEN OR TIED WARMEST DAILY HIGH
TEMPERATURE RECORDS...

NONE

...BILLINGS JANUARY 2015 BROKEN OR TIED COLDEST DAILY HIGH
TEMPERATURE RECORDS...

NONE

...BILLINGS AVERAGE LOW TEMPERATURES...

 MONTH   2015 VALUES  NORMALS   DEPARTURE  RANKING

JANUARY      21.7      17.8      +3.9      TIED FOR THE 14TH WARMEST OUT OF 80 YEARS
                                           (RECORD WARMEST WAS 28.6 IN 2006)
                                           (WARMEST SINCE 28.6 IN
2006)

...BILLINGS JANUARY 2015 BROKEN OR TIED WARMEST DAILY LOW
TEMPERATURE RECORDS...

NONE

...BILLINGS JANUARY 2015 BROKEN OR TIED COLDEST DAILY LOW
TEMPERATURE RECORDS...

NONE

...BILLINGS MONTHLY WIND AVERAGES...

 MONTH   2015 VALUES  NORMALS    DEPARTURE  RANKING

JANUARY      16.6      13.2       +3.4      2ND WINDIEST OUT OF 65 YEARS
                                            (RECORD WINDIEST WAS 17.7 IN 1962)
                                            (WINDIEST SINCE 17.7 IN 1962)

$$


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