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000
CXUS55 KBYZ 011157
CLMMLS

CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
456 AM MST MON JAN 01 2024

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

...THE MILES CITY MT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2023...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1937 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART
                VALUE   DATE(S)   VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
HIGHEST           59   12/05
LOWEST             1   12/25
AVG. MAXIMUM    42.5               33.1     9.4
AVG. MINIMUM    20.4               11.7     8.7
MEAN            31.5               22.4     9.1
DAYS MAX >= 90     0
DAYS MAX <= 32     3
DAYS MIN <= 32    30
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
TOTALS          0.10               0.22   -0.12
DAYS >= .01        2
DAYS >= .10        0
DAYS >= .50        0
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.10   12/07 TO 12/08


DEGREE DAYS
HEATING TOTAL   1033               1320    -287
 SINCE 7/1      2581               3079    -498
COOLING TOTAL      0                  0       0
 SINCE 1/1       830                731      99
................................................

WIND (MPH)
AVERAGE WIND SPEED              8.6
HIGHEST WIND SPEED/DIRECTION    37/320    DATE  12/04
HIGHEST GUST SPEED/DIRECTION    50/310    DATE  12/04

AVERAGE RH (PERCENT)     71

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       2
LIGHT RAIN                2     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       2
LIGHT SNOW                5     SLEET                      0
FOG                       9     FOG W/VIS <= 1/4 MILE      0
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.

...DECEMBER 2023 MONTH IN REVIEW FOR MILES CITY...

BELOW IS A SUMMARY OF THE TEMPERATURE AND PRECIPITATION
STATISTICS FOR MILES CITY FOR DECEMBER 2023. ALL TEMPERATURES ARE IN
DEGREES FAHRENHEIT AND ALL PRECIPITATION AMOUNTS ARE IN INCHES. NORMALS
ARE 30 YEAR AVERAGES CALCULATED FROM 1991 TO 2020. 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   2023 VALUES  NORMALS    DEPARTURE  RANKING

DECEMBER     0.10     0.22       -0.12      21ST DRIEST OUT OF 86 YEARS
                                            (RECORD DRIEST WAS 0.02 TIED IN 2020)
                                            (DRIEST SINCE 0.02 IN 2020)

...MILES CITY DECEMBER 2023 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   2023 VALUES  NORMALS   DEPARTURE  RANKING

DECEMBER     31.5      22.4      +9.1      3RD WARMEST OUT OF 86 YEARS
                                           (RECORD WARMEST WAS 33.3 IN 1957)
                                           (WARMEST SINCE 33.1 IN 1999)

...MILES CITY AVERAGE HIGH TEMPERATURES...

 MONTH   2023 VALUES  NORMALS   DEPARTURE  RANKING

DECEMBER     42.5      33.1      +9.4      5TH WARMEST OUT OF 86 YEARS
                                           (RECORD WARMEST WAS 45.0 IN 1957)
                                           (WARMEST SINCE 43.8 IN 1999)

...MILES CITY DECEMBER 2023 BROKEN OR TIED WARMEST DAILY HIGH TEMPERATURE RECORDS...

NONE

...MILES CITY DECEMBER 2023 BROKEN OR TIED COLDEST DAILY HIGH TEMPERATURE RECORDS...

NONE

...MILES CITY AVERAGE LOW TEMPERATURES...

 MONTH   2023 VALUES  NORMALS   DEPARTURE  RANKING

DECEMBER     20.4      11.7      +8.7      5TH WARMEST OUT OF 86 YEARS
                                           (RECORD WARMEST WAS 22.4 IN 1999)
                                           (WARMEST SINCE 22.4 IN 1999)

...MILES CITY DECEMBER 2023 BROKEN OR TIED WARMEST DAILY LOW TEMPERATURE RECORDS...

36 ON DECEMBER  6 (OLD RECORD 34 IN 1991)

...MILES CITY DECEMBER 2023 BROKEN OR TIED COLDEST DAILY LOW TEMPERATURE RECORDS...

NONE

$$