Climatological Report (Monthly)
Issued by NWS Billings, MT

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364
CXUS55 KBYZ 011001
CLMMLS


CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
359 AM MDT WED NOV 1 2017

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

...THE MILES CITY MT CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1937 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
HIGHEST            82   10/19
LOWEST             19   10/27
AVG. MAXIMUM     60.7              59.2     1.5
AVG. MINIMUM     32.1              33.8    -1.7
MEAN             46.4              46.5    -0.1
DAYS MAX >= 90      0
DAYS MAX <= 32      0
DAYS MIN <= 32     16
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
TOTALS           0.72              0.92   -0.20
DAYS >= .01         6
DAYS >= .10         1
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.49   10/01 TO 10/01

DEGREE_DAYS
HEATING TOTAL     567               575      -8
 SINCE 7/1        795               811     -16
COOLING TOTAL       0                 2      -2
 SINCE 1/1        985               730     255
.................................................

WIND (MPH)
AVERAGE WIND SPEED              11.7
HIGHEST WIND SPEED/DIRECTION    46/330    DATE  10/25
HIGHEST GUST SPEED/DIRECTION    59/330    DATE  10/25

AVERAGE RH (PERCENT)     60

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                7     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                3     SLEET                      0
FOG                       4     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.

&&

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

...OCTOBER 2017 MONTH IN REVIEW FOR MILES CITY...

BELOW IS A SUMMARY OF THE TEMPERATURE AND PRECIPITATION
STATISTICS FOR MILES CITY FOR OCTOBER 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 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   2017 VALUES  NORMALS    DEPARTURE  RANKING

OCTOBER      0.72     0.92       -0.20      40TH WETTEST OUT OF 81 YEARS
                                            (RECORD WETTEST WAS 6.31 IN 1971)
                                            (WETTEST SINCE 0.97 IN 2016)

...MILES CITY OCTOBER 2017 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   2017 VALUES  NORMALS   DEPARTURE  RANKING

OCTOBER      46.4      46.5      -0.1      21ST COLDEST OUT OF 81 YEARS
                                           (RECORD COLDEST WAS 39.3 IN 2002)
                                           (COLDEST SINCE 45.4 IN 2013)

...MILES CITY AVERAGE HIGH TEMPERATURES...

 MONTH   2017 VALUES  NORMALS   DEPARTURE  RANKING

OCTOBER      60.7      59.2      +1.5      TIED FOR THE 35TH COLDEST OUT OF 81 YEARS
                                           (RECORD COLDEST WAS 49.7 IN 1969)
                                           (COLDEST SINCE 60.6 IN 2016)

...MILES CITY OCTOBER 2017 BROKEN OR TIED WARMEST DAILY HIGH TEMPERATURE RECORDS...

79 ON OCTOBER 25 (OLD RECORD 78 IN 1955)

...MILES CITY OCTOBER 2017 BROKEN OR TIED COLDEST DAILY HIGH TEMPERATURE RECORDS...

40 ON OCTOBER  3 (OLD RECORD 44 IN 1994)

...MILES CITY AVERAGE LOW TEMPERATURES...

 MONTH   2017 VALUES  NORMALS   DEPARTURE  RANKING

OCTOBER      32.1      33.8      -1.7      10TH COLDEST OUT OF 81 YEARS
                                           (RECORD COLDEST WAS 27.8 IN 2002)
                                           (COLDEST SINCE 31.2 IN 2006)

...MILES CITY OCTOBER 2017 BROKEN OR TIED WARMEST DAILY LOW TEMPERATURE RECORDS...

NONE

...MILES CITY OCTOBER 2017 BROKEN OR TIED COLDEST DAILY LOW TEMPERATURE RECORDS...

25 ON OCTOBER  4 (OLD RECORD 27 IN 1952)

$$




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