Climatological Report (Monthly)
Issued by NWS Billings, MT

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000
CXUS55 KBYZ 010948
CLMBIL


CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
343 AM MDT TUE AUG 1 2017

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

...THE BILLINGS MT CLIMATE SUMMARY FOR THE MONTH OF JULY 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1934 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
HIGHEST           100   07/15
                        07/08
LOWEST             55   07/01
AVG. MAXIMUM     93.1              86.8     6.3
AVG. MINIMUM     63.5              58.8     4.7
MEAN             78.3              72.8     5.5
DAYS MAX >= 90     24
DAYS MAX <= 32      0
DAYS MIN <= 32      0
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
TOTALS           0.13              1.32   -1.19
DAYS >= .01         5
DAYS >= .10         0
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.04   07/11 TO 07/11

SNOWFALL (INCHES)
TOTALS            0.0               0.0     0.0
SINCE 7/1         0.0               0.0     0.0
SNOWDEPTH AVG.      0
DAYS >= TRACE       0
DAYS >= 1.0         0
GREATEST
 SNOW DEPTH         0   MM
 24 HR TOTAL      0.0   07/31 TO 07/31

DEGREE_DAYS
HEATING TOTAL       0                15     -15
 SINCE 7/1          0                15     -15
COOLING TOTAL     419               256     163
 SINCE 1/1        537               358     179
.................................................

WIND (MPH)
AVERAGE WIND SPEED              8.5
HIGHEST WIND SPEED/DIRECTION    46/330    DATE  07/06
HIGHEST GUST SPEED/DIRECTION    60/280    DATE  07/16

AVERAGE RH (PERCENT)     36

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             12     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       2
LIGHT RAIN               12     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       0     FOG W/VIS <= 1/4 MILE      0
HAZE                      1

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

&&

...JULY 2017 MONTH IN REVIEW FOR BILLINGS...

BELOW IS A SUMMARY OF THE TEMPERATURE...PRECIPITATION...AND WIND
STATISTICS FOR BILLINGS FOR JULY 2017. 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   2017 VALUES  NORMALS    DEPARTURE  RANKING

JULY         0.13     1.32       -1.19      6TH DRIEST OUT OF 83 YEARS
                                            (RECORD DRIEST WAS T IN 2003)
                                            (DRIEST SINCE T IN 2003)

...BILLINGS JULY 2017 BROKEN OR TIED DAILY PRECIPITATION RECORDS...

NONE

...BILLINGS MONTHLY SNOWFALL...

 MONTH   2017 VALUES  NORMALS    DEPARTURE  RANKING

JULY          0.0       0.0        0.0      NOT DETERMINED

...BILLINGS JULY 2017 BROKEN OR TIED DAILY SNOWFALL RECORDS...

NONE

...BILLINGS AVERAGE TEMPERATURES...

 MONTH   2017 VALUES  NORMALS   DEPARTURE  RANKING

JULY         78.3      72.8      +5.5      TIED FOR THE 4TH WARMEST OUT OF 83 YEARS
                                           (RECORD WARMEST WAS 81.0 IN 1936)
                                           (WARMEST SINCE 78.3 IN 2012)

...BILLINGS AVERAGE HIGH TEMPERATURES...

 MONTH   2017 VALUES  NORMALS   DEPARTURE  RANKING

JULY         93.1      86.8      +6.3      TIED FOR THE 5TH WARMEST OUT OF 83 YEARS
                                           (RECORD WARMEST WAS 96.3 IN 1936)
                                           (WARMEST SINCE 93.3 IN 2012)

...BILLINGS JULY 2017 BROKEN OR TIED WARMEST DAILY HIGH TEMPERATURE RECORDS...

NONE

...BILLINGS JULY 2017 BROKEN OR TIED COLDEST DAILY HIGH TEMPERATURE RECORDS...

NONE

...BILLINGS AVERAGE LOW TEMPERATURES...

 MONTH   2017 VALUES  NORMALS   DEPARTURE  RANKING

JULY         63.5      58.8      +4.7      4TH WARMEST OUT OF 83 YEARS
                                           (RECORD WARMEST WAS 65.7 IN 1936)
                                           (WARMEST SINCE 64.7 IN 2007)

...BILLINGS JULY 2017 BROKEN OR TIED WARMEST DAILY LOW TEMPERATURE RECORDS...

71 ON JULY  9 (OLD RECORD 68 IN 2001)
69 ON JULY 27 (TIED RECORD IN 1959)

...BILLINGS JULY 2017 BROKEN OR TIED COLDEST DAILY LOW TEMPERATURE RECORDS...

NONE

...BILLINGS MONTHLY WIND AVERAGES...

 MONTH   2017 VALUES  NORMALS    DEPARTURE  RANKING

JULY          8.5       8.9       -0.4      TIED FOR THE 9TH LEAST WINDIEST OUT OF 68 YEARS
                                            (RECORD LEAST WINDIEST WAS 7.6 IN 2011)
                                            (LEAST WINDIEST SINCE 8.4 IN 2014)

$$



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