Climatological Report (Monthly)
Issued by NWS Billings, MT

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000
CXUS55 KBYZ 011250
CLMBIL


CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
642 AM MDT SAT SEP 1 2018

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

...THE BILLINGS MT CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1934 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
HIGHEST           103   08/12
LOWEST             44   08/28
AVG. MAXIMUM     82.5              85.7    -3.2
AVG. MINIMUM     56.3              57.3    -1.0
MEAN             69.4              71.5    -2.1
DAYS MAX >= 90      9
DAYS MAX <= 32      0
DAYS MIN <= 32      0
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
TOTALS           1.45              0.75    0.70
DAYS >= .01         9
DAYS >= .10         3
DAYS >= .50         1
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.72   08/18 TO 08/18

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
 24 HR TOTAL      0.0

DEGREE_DAYS
HEATING TOTAL      52                22      30
 SINCE 7/1         59                37      22
COOLING TOTAL     196               224     -28
 SINCE 1/1        518               582     -64
.................................................

WIND (MPH)
AVERAGE WIND SPEED              9.0
HIGHEST WIND SPEED/DIRECTION    39/310    DATE  08/24
HIGHEST GUST SPEED/DIRECTION    47/280    DATE  08/30

AVERAGE RH (PERCENT)     51

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             12     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       5
LIGHT RAIN               13     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       1
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       7     FOG W/VIS <= 1/4 MILE      1
HAZE                      8

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

&&

...AUGUST 2018 MONTH IN REVIEW FOR BILLINGS...

BELOW IS A SUMMARY OF THE TEMPERATURE...PRECIPITATION...AND WIND
STATISTICS FOR BILLINGS FOR AUGUST 2018. 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   2018 VALUES  NORMALS    DEPARTURE  RANKING

AUGUST       1.45     0.75       +0.70      17TH WETTEST OUT OF 85 YEARS
                                            (RECORD WETTEST WAS 3.50 IN 1965)
                                            (WETTEST SINCE 1.67 IN 2016)

...BILLINGS AUGUST 2018 BROKEN OR TIED DAILY PRECIPITATION RECORDS...

0.72 ON AUGUST 18 (OLD RECORD 0.37 IN 2016)

...BILLINGS MONTHLY SNOWFALL...

 MONTH   2018 VALUES  NORMALS    DEPARTURE  RANKING

AUGUST        0.0       0.0        0.0      NOT DETERMINED

...BILLINGS AUGUST 2018 BROKEN OR TIED DAILY SNOWFALL RECORDS...

NONE

...BILLINGS AVERAGE TEMPERATURES...

 MONTH   2018 VALUES  NORMALS   DEPARTURE  RANKING

AUGUST       69.4      71.5      -2.1      TIED FOR THE 24TH COLDEST OUT OF 85 YEARS
                                           (RECORD COLDEST WAS 64.8 IN 1974)
                                           (COLDEST SINCE 68.9 IN 2004)

...BILLINGS AVERAGE HIGH TEMPERATURES...

 MONTH   2018 VALUES  NORMALS   DEPARTURE  RANKING

AUGUST       82.5      85.7      -3.2      23RD COLDEST OUT OF 85 YEARS
                                           (RECORD COLDEST WAS 77.3 IN 1974)
                                           (COLDEST SINCE 82.2 IN 2014)

...BILLINGS AUGUST 2018 BROKEN OR TIED WARMEST DAILY HIGH TEMPERATURE RECORDS...

102 ON AUGUST 11 (OLD RECORD 100 IN 1996)

...BILLINGS AUGUST 2018 BROKEN OR TIED COLDEST DAILY HIGH TEMPERATURE RECORDS...

57 ON AUGUST 21 (OLD RECORD 61 IN 1966)

...BILLINGS AVERAGE LOW TEMPERATURES...

 MONTH   2018 VALUES  NORMALS   DEPARTURE  RANKING

AUGUST       56.3      57.3      -1.0      TIED FOR THE 32ND COLDEST OUT OF 85 YEARS
                                           (RECORD COLDEST WAS 48.5 IN 1939)
                                           (COLDEST SINCE 56.3 IN 2016)

...BILLINGS AUGUST 2018 BROKEN OR TIED WARMEST DAILY LOW TEMPERATURE RECORDS...

69 ON AUGUST 12 (OLD RECORD 67 IN 1965)

...BILLINGS AUGUST 2018 BROKEN OR TIED COLDEST DAILY LOW TEMPERATURE RECORDS...

NONE

...BILLINGS MONTHLY WIND AVERAGES...

 MONTH   2018 VALUES  NORMALS    DEPARTURE  RANKING

AUGUST        9.0       9.0        0.0      TIED FOR THE 25TH LEAST WINDIEST OUT OF 69 YEARS
                                            (RECORD LEAST WINDIEST WAS 7.7 IN 1989)
                                            (LEAST WINDIEST SINCE 8.0 IN 2017)

$$




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