Climatological Report (Monthly)
Issued by NWS Billings, MT

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000
CXUS55 KBYZ 011222
CLMMLS

CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
509 AM MST SUN NOV 01 2020

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

...THE MILES CITY MT CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2020...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1937 TO 2020

WEATHER         OBSERVED          NORMAL  DEPART
                VALUE   DATE(S)   VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
HIGHEST           85   10/06
LOWEST            -3   10/26
AVG. MAXIMUM    54.3               59.2    -4.9
AVG. MINIMUM    29.3               33.8    -4.5
MEAN            41.8               46.5    -4.7
DAYS MAX >= 90     0
DAYS MAX <= 32     5
DAYS MIN <= 32    16
DAYS MIN <= 0      1

PRECIPITATION (INCHES)
TOTALS          0.85               0.92   -0.07
DAYS >= .01       11
DAYS >= .10        3
DAYS >= .50        0
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.37   10/13 TO 10/14


DEGREE DAYS
HEATING TOTAL    715                575     140
 SINCE 7/1       877                806      71
COOLING TOTAL      4                  2       2
 SINCE 1/1       731                730       1
................................................

WIND (MPH)
AVERAGE WIND SPEED              10.0
HIGHEST WIND SPEED/DIRECTION    46/300    DATE  10/11
HIGHEST GUST SPEED/DIRECTION    56/300    DATE  10/11

AVERAGE RH (PERCENT)     61

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       3
LIGHT RAIN               12     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                9     SLEET                      0
FOG                      12     FOG W/VIS <= 1/4 MILE      1
HAZE                      2

-  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 2020 MONTH IN REVIEW FOR MILES CITY...

BELOW IS A SUMMARY OF THE TEMPERATURE AND PRECIPITATION
STATISTICS FOR MILES CITY FOR OCTOBER 2020. 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   2020 VALUES  NORMALS    DEPARTURE  RANKING

OCTOBER      0.85     0.92       -0.07      36TH WETTEST OUT OF 84 YEARS
                                            (RECORD WETTEST WAS 6.31 IN 1971)
                                            (WETTEST SINCE 0.97 IN 2016)

...MILES CITY OCTOBER 2020 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   2020 VALUES  NORMALS   DEPARTURE  RANKING

OCTOBER      41.8      46.5      -4.7      6TH COLDEST OUT OF 84 YEARS
                                           (RECORD COLDEST WAS 39.1 IN 2019)
                                           (COLDEST SINCE 39.1 IN 2019)

...MILES CITY AVERAGE HIGH TEMPERATURES...

 MONTH   2020 VALUES  NORMALS   DEPARTURE  RANKING

OCTOBER      54.3      59.2      -4.9      7TH COLDEST OUT OF 84 YEARS
                                           (RECORD COLDEST WAS 49.7 IN 1969)
                                           (COLDEST SINCE 50.5 IN 2019)

...MILES CITY OCTOBER 2020 BROKEN OR TIED WARMEST DAILY HIGH TEMPERATURE RECORDS...

NONE

...MILES CITY OCTOBER 2020 BROKEN OR TIED COLDEST DAILY HIGH TEMPERATURE RECORDS...

29 ON OCTOBER 18 (OLD RECORD 33 IN 1976)
35 ON OCTOBER 21 (OLD RECORD 37 IN 1949)
27 ON OCTOBER 23 (OLD RECORD 31 IN 1991)
21 ON OCTOBER 24 (OLD RECORD 29 IN 1957)
18 ON OCTOBER 25 (OLD RECORD 30 IN 2012)
26 ON OCTOBER 26 (OLD RECORD 29 IN 1969)

...MILES CITY AVERAGE LOW TEMPERATURES...

 MONTH   2020 VALUES  NORMALS   DEPARTURE  RANKING

OCTOBER      29.3      33.8      -4.5      3RD COLDEST OUT OF 84 YEARS
                                           (RECORD COLDEST WAS 27.6 IN 2019)
                                           (COLDEST SINCE 27.6 IN 2019)

...MILES CITY OCTOBER 2020 BROKEN OR TIED WARMEST DAILY LOW TEMPERATURE RECORDS...

NONE

...MILES CITY OCTOBER 2020 BROKEN OR TIED COLDEST DAILY LOW TEMPERATURE RECORDS...

9 ON OCTOBER 22 (OLD RECORD 18 IN 1981)
7 ON OCTOBER 23 (OLD RECORD 17 IN 1957)
1 ON OCTOBER 25 (OLD RECORD 9 IN 1942)
-3 ON OCTOBER 26 (OLD RECORD 15 IN 2002)
13 ON OCTOBER 27 (OLD RECORD 16 IN 1991)

$$



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