Climatological Report (Monthly)
Issued by NWS Billings, MT

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CXUS55 KBYZ 011001
CLMBIL


CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
358 AM MDT WED OCT 1 2014

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

...THE BILLINGS MT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1934 TO 2014

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
HIGHEST            92   09/25
LOWEST             30   09/12
AVG. MAXIMUM     73.1              73.1     0.0
AVG. MINIMUM     48.0              47.5     0.5
MEAN             60.5              60.3     0.2
DAYS MAX >= 90      1
DAYS MAX <= 32      0
DAYS MIN <= 32      1
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
TOTALS           0.57              1.30   -0.73
DAYS >= .01         6
DAYS >= .10         2
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.23   09/10 TO 09/10
                        09/09 TO 09/10
                        09/10 TO 09/10

SNOWFALL (INCHES)
TOTALS              T               1.1    -1.1
SINCE 7/1           T               1.1    -1.1
SNOWDEPTH AVG.      0
DAYS >= TRACE       1
DAYS >= 1.0         0
GREATEST
 SNOW DEPTH         0   MM
 24 HR TOTAL        T   09/11 TO 09/11

DEGREE_DAYS
HEATING TOTAL     193               192       1
 SINCE 7/1        241               229      12
COOLING TOTAL      66                51      15
 SINCE 1/1        618               633     -15
.................................................

WIND (MPH)
AVERAGE WIND SPEED              9.3
HIGHEST WIND SPEED/DIRECTION    30/320    DATE  09/03
HIGHEST GUST SPEED/DIRECTION    38/360    DATE  09/03

AVERAGE RH (PERCENT)     54

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                0     SLEET                      0
FOG                       8     FOG W/VIS <= 1/4 MILE      3
HAZE                      1

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

&&

...SEPTEMBER 2014 MONTH IN REVIEW FOR BILLINGS...

BELOW IS A SUMMARY OF THE TEMPERATURE...PRECIPITATION...AND WIND
STATISTICS FOR BILLINGS FOR SEPTEMBER 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   2014 VALUES  NORMALS    DEPARTURE  RANKING

SEPTEMBER    0.57     1.30       -0.73      19TH DRIEST OUT OF 81 YEARS
                                            (RECORD DRIEST WAS T IN 2012)
                                            (DRIEST SINCE T IN 2012)

...BILLINGS SEPTEMBER 2014 BROKEN OR TIED DAILY PRECIPITATION RECORDS...

NONE

...BILLINGS MONTHLY SNOWFALL...

 MONTH   2014 VALUES  NORMALS    DEPARTURE  RANKING

SEPTEMBER       T       1.1       -1.1      TIED FOR THE 17TH SNOWIEST OUT OF 81 YEARS
                                            (RECORD SNOWIEST WAS 9.3 IN 1984)
                                            (SNOWIEST SINCE T IN 2013)

...BILLINGS SEPTEMBER 2014 BROKEN OR TIED DAILY SNOWFALL RECORDS...

NONE

...BILLINGS AVERAGE TEMPERATURES...

 MONTH   2014 VALUES  NORMALS   DEPARTURE  RANKING

SEPTEMBER    60.6      60.3      +0.3      TIED FOR THE 35TH WARMEST OUT OF 81 YEARS
                                           (RECORD WARMEST WAS 67.2 IN 1938)
                                           (WARMEST SINCE 64.4 IN 2013)

...BILLINGS AVERAGE HIGH TEMPERATURES...

 MONTH   2014 VALUES  NORMALS   DEPARTURE  RANKING

SEPTEMBER    73.1      73.1       0.0      40TH WARMEST OUT OF 81 YEARS
                                           (RECORD WARMEST WAS 82.4 IN 1938)
                                           (WARMEST SINCE 76.2 IN 2013)

...BILLINGS SEPTEMBER 2014 BROKEN OR TIED WARMEST DAILY HIGH TEMPERATURE RECORDS...

92 ON SEPTEMBER 25 (OLD RECORD 91 IN 2001)

...BILLINGS SEPTEMBER 2014 BROKEN OR TIED COLDEST DAILY HIGH TEMPERATURE RECORDS...

45 ON SEPTEMBER 10 (OLD RECORD 49 IN 1989)
44 ON SEPTEMBER 11 (OLD RECORD 45 IN 1949)

...BILLINGS AVERAGE LOW TEMPERATURES...

 MONTH   2014 VALUES  NORMALS   DEPARTURE  RANKING

SEPTEMBER    48.0      47.5      +0.5      TIED FOR THE 29TH WARMEST OUT OF 81 YEARS
                                           (RECORD WARMEST WAS 53.8 IN 1940)
                                           (WARMEST SINCE 52.6 IN 2013)

...BILLINGS SEPTEMBER 2014 BROKEN OR TIED WARMEST DAILY LOW TEMPERATURE RECORDS...

62 ON SEPTEMBER 18 (TIED RECORD IN 2009)
58 ON SEPTEMBER 19 (TIED RECORD IN 1984)

...BILLINGS SEPTEMBER 2014 BROKEN OR TIED COLDEST DAILY LOW TEMPERATURE RECORDS...

30 ON SEPTEMBER 12 (TIED RECORD IN 1970)

...BILLINGS MONTHLY WIND AVERAGES...

 MONTH   2014 VALUES  NORMALS    DEPARTURE  RANKING

SEPTEMBER     9.3       9.5       -0.2      TIED FOR THE 21ST LEAST WINDIEST OUT OF 65 YEARS
                                            (RECORD LEAST WINDIEST WAS 7.7 IN 2008)
                                            (LEAST WINDIEST SINCE 9.3 IN 2013)

$$





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