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000
CXUS55 KBYZ 010941
CLMMLS


CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
338 AM MDT WED MAY 1 2013

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

...THE MILES CITY MT CLIMATE SUMMARY FOR THE MONTH OF APRIL 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1937 TO 2013

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
HIGHEST            81   04/27
LOWEST             15   04/09
AVG. MAXIMUM     52.8              58.8    -6.0
AVG. MINIMUM     29.0              33.2    -4.2
MEAN             40.9              46.0    -5.1
DAYS MAX >= 90      0
DAYS MAX <= 32      3
DAYS MIN <= 32     20
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
TOTALS           1.27              1.37   -0.10
DAYS >= .01        11
DAYS >= .10         5
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.48   04/13 TO 04/14

DEGREE_DAYS
HEATING TOTAL     715               571     144
 SINCE 7/1       6885              7246    -361
COOLING TOTAL       0                 1      -1
 SINCE 1/1          0                 1      -1
.................................................

WIND (MPH)
AVERAGE WIND SPEED              10.3
HIGHEST WIND SPEED/DIRECTION    40/310    DATE  04/29
HIGHEST GUST SPEED/DIRECTION    47/320    DATE  04/29

AVERAGE RH (PERCENT)     62

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       2
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                1     SNOW                       5
LIGHT SNOW                9     SLEET                      0
FOG                      11     FOG W/VIS <= 1/4 MILE      5
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 2013 MONTH IN REVIEW FOR MILES CITY...

BELOW IS A SUMMARY OF THE TEMPERATURE AND PRECIPITATION
STATISTICS FOR MILES CITY FOR APRIL 2013. 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   2013 VALUES  NORMALS    DEPARTURE  RANKING

APRIL        1.27     1.37       -0.10      32ND WETTEST OUT OF 77 YEARS
                                            (RECORD WETTEST WAS 4.22 IN 1973)
                                            (WETTEST SINCE 2.02 IN 2011)

...MILES CITY APRIL 2013 BROKEN OR TIED DAILY PRECIPITATION RECORDS...

0.34 ON APRIL 13 (TIED RECORD IN 1991)

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   2013 VALUES  NORMALS   DEPARTURE  RANKING

APRIL        40.9      46.0      -5.1      7TH COLDEST OUT OF 77 YEARS
                                           (RECORD COLDEST WAS 38.8 IN 1975)
                                           (COLDEST SINCE 40.8 IN 1995)

...MILES CITY AVERAGE HIGH TEMPERATURES...

 MONTH   2013 VALUES  NORMALS   DEPARTURE  RANKING

APRIL        52.8      58.8      -6.0      TIED FOR THE 9TH COLDEST OUT OF 77 YEARS
                                           (RECORD COLDEST WAS 48.2 IN 1975)
                                           (COLDEST SINCE 52.4 IN 1997)

...MILES CITY APRIL 2013 BROKEN OR TIED WARMEST DAILY HIGH TEMPERATURE RECORDS...

NONE

...MILES CITY APRIL 2013 BROKEN OR TIED COLDEST DAILY HIGH TEMPERATURE RECORDS...

31 ON APRIL 15 (OLD RECORD 37 IN 1970)
31 ON APRIL 16 (OLD RECORD 35 IN 1953)
33 ON APRIL 17 (OLD RECORD 36 IN 1953)

...MILES CITY AVERAGE LOW TEMPERATURES...

 MONTH   2013 VALUES  NORMALS   DEPARTURE  RANKING

APRIL        29.0      33.2      -4.2      6TH COLDEST OUT OF 77 YEARS
                                           (RECORD COLDEST WAS 27.0 IN 1951)
                                           (COLDEST SINCE 28.9 IN 2002)

...MILES CITY APRIL 2013 BROKEN OR TIED WARMEST DAILY LOW TEMPERATURE RECORDS...

NONE

...MILES CITY APRIL 2013 BROKEN OR TIED COLDEST DAILY LOW TEMPERATURE RECORDS...

15 ON APRIL  9 (OLD RECORD 16 IN 1973)
19 ON APRIL 23 (TIED RECORD IN 1967)

$$