000
CXUS55 KBYZ 011000
CLMMLS


CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
353 AM MDT MON OCT 1 2012

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

...THE MILES CITY MT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2012...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1937 TO 2012

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
HIGHEST            94   09/01
LOWEST             35   09/12
AVG. MAXIMUM     80.8              74.2     6.6
AVG. MINIMUM     47.0              46.1     0.9
MEAN             63.9              60.1     3.8
DAYS MAX >= 90      3
DAYS MAX <= 32      0
DAYS MIN <= 32      0
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
TOTALS           0.02              1.08   -1.06
DAYS >= .01         2
DAYS >= .10         0
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.01   09/10 TO 09/10
                        08/31 TO 09/01
                        09/01 TO 09/02

DEGREE_DAYS
HEATING TOTAL      80               202    -122
 SINCE 7/1         93               236    -143
COOLING TOTAL      55                56      -1
 SINCE 1/1       1107               728     379
.................................................

WIND (MPH)
AVERAGE WIND SPEED              7.7
HIGHEST WIND SPEED/DIRECTION    38/360    DATE  09/10
HIGHEST GUST SPEED/DIRECTION    45/360    DATE  09/10

AVERAGE RH (PERCENT)     37

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                4     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       0     FOG W/VIS <= 1/4 MILE      0
HAZE                      8

-  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.

...SEPTEMBER 2012 MONTH IN REVIEW FOR MILES CITY...

BELOW IS A SUMMARY OF THE TEMPERATURE AND PRECIPITATION
STATISTICS FOR MILES CITY FOR SEPTEMBER 2012. 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   2012 VALUES  NORMALS    DEPARTURE  RANKING

SEPTEMBER    0.02     1.08       -1.06      2ND DRIEST OUT OF 76 YEARS
                                            (RECORD DRIEST WAS T IN 1960)
                                            (DRIEST SINCE T IN 1960)

...MILES CITY SEPTEMBER 2012 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   2012 VALUES  NORMALS   DEPARTURE  RANKING

SEPTEMBER    63.9      60.1      +3.8      16TH WARMEST OUT OF 76 YEARS
                                           (RECORD WARMEST WAS 69.4 IN 1998)
                                           (WARMEST SINCE 67.6 IN 2009)

...MILES CITY AVERAGE HIGH TEMPERATURES...

 MONTH   2012 VALUES  NORMALS   DEPARTURE  RANKING

SEPTEMBER    80.8      74.2      +6.6      9TH WARMEST OUT OF 76 YEARS
                                           (RECORD WARMEST WAS 84.4 IN 1938)
                                           (WARMEST SINCE 83.5 IN 2009)

...MILES CITY SEPTEMBER 2012 BROKEN OR TIED WARMEST DAILY HIGH TEMPERATURE RECORDS...

NONE

...MILES CITY SEPTEMBER 2012 BROKEN OR TIED COLDEST DAILY HIGH TEMPERATURE RECORDS...

NONE

...MILES CITY AVERAGE LOW TEMPERATURES...

 MONTH   2012 VALUES  NORMALS   DEPARTURE  RANKING

SEPTEMBER    47.0      46.1      +0.9      TIED FOR THE 36TH WARMEST OUT OF 76 YEARS
                                           (RECORD WARMEST WAS 54.5 IN 1998)
                                           (WARMEST SINCE 47.0 IN 2011)

...MILES CITY SEPTEMBER 2012 BROKEN OR TIED WARMEST DAILY LOW TEMPERATURE RECORDS...

52 ON SEPTEMBER 29 (TIED RECORD IN 1940)

...MILES CITY SEPTEMBER 2012 BROKEN OR TIED COLDEST DAILY LOW TEMPERATURE RECORDS...

NONE

$$