Climatological Report (Monthly)
Issued by NWS Billings, MT

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000
CXUS55 KBYZ 011219
CLMMLS


CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
613 AM MDT MON MAY 1 2017

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

...THE MILES CITY MT CLIMATE SUMMARY FOR THE MONTH OF APRIL 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            79   04/13
                        04/07
LOWEST             27   04/17
AVG. MAXIMUM     59.6              58.8     0.8
AVG. MINIMUM     36.7              33.2     3.5
MEAN             48.2              46.0     2.2
DAYS MAX >= 90      0
DAYS MAX <= 32      0
DAYS MIN <= 32      7
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
TOTALS           0.98              1.37   -0.39
DAYS >= .01        13
DAYS >= .10         4
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.28   04/19 TO 04/19

DEGREE_DAYS
HEATING TOTAL     497               571     -74
 SINCE 7/1       6851              7246    -395
COOLING TOTAL       0                 1      -1
 SINCE 1/1          0                 1      -1
.................................................

WIND (MPH)
AVERAGE WIND SPEED              10.1
HIGHEST WIND SPEED/DIRECTION    35/330    DATE  04/07
HIGHEST GUST SPEED/DIRECTION    41/330    DATE  04/07

AVERAGE RH (PERCENT)     58

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       4
LIGHT RAIN               13     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                3     SLEET                      0
FOG                       9     FOG W/VIS <= 1/4 MILE      2
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.

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

BELOW IS A SUMMARY OF THE TEMPERATURE AND PRECIPITATION
STATISTICS FOR MILES CITY FOR APRIL 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 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

APRIL        0.98     1.37       -0.39      36TH DRIEST OUT OF 81 YEARS
                                            (RECORD DRIEST WAS 0.02 IN 1983)
                                            (DRIEST SINCE 0.45 IN 2015)

...MILES CITY APRIL 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

APRIL        48.2      46.0      +2.2      TIED FOR THE 21ST WARMEST OUT OF 81 YEARS
                                           (RECORD WARMEST WAS 53.3 TIED IN 1987)
                                           (WARMEST SINCE 48.9 IN 2016)

...MILES CITY AVERAGE HIGH TEMPERATURES...

 MONTH   2017 VALUES  NORMALS   DEPARTURE  RANKING

APRIL        59.6      58.8      +0.8      33RD WARMEST OUT OF 81 YEARS
                                           (RECORD WARMEST WAS 68.5 IN 1987)
                                           (WARMEST SINCE 60.8 IN 2016)

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

79 ON APRIL 13 (OLD RECORD 78 IN 1942)

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

NONE

...MILES CITY AVERAGE LOW TEMPERATURES...

 MONTH   2017 VALUES  NORMALS   DEPARTURE  RANKING

APRIL        36.7      33.2      +3.5      18TH WARMEST OUT OF 81 YEARS
                                           (RECORD WARMEST WAS 39.3 IN 1980)
                                           (WARMEST SINCE 37.0 IN 2016)

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

43 ON APRIL  2 (OLD RECORD 40 IN 1961)

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

NONE

$$




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