National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
CXUS55 KGGW 060211
CLMGGW

CLIMATE REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
740 PM MDT TUE JUN 5 2012

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

...THE GLASGOW CLIMATE SUMMARY FOR THE MONTH OF MAY 2012...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1893 TO 2012

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             102   05/29/1988
                        05/18/1948
 LOW               15   05/06/1929
HIGHEST            86   05/16                         70  05/16
LOWEST             29   05/11                         28  05/02
AVG. MAXIMUM     65.9              67.8    -1.9     60.9
AVG. MINIMUM     40.8              42.3    -1.5     41.9
MEAN             53.3              55.1    -1.8     51.4
DAYS MAX >= 90      0                                  0
DAYS MAX <= 32      0                                  0
DAYS MIN <= 32      1                                  3
DAYS MIN <= 0       0                                  0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         6.97   2011
 MINIMUM         0.03   1958
TOTALS           3.06              1.92    1.14     6.97
DAILY AVG.       0.10              0.06    0.04     0.22
DAYS >= .01        14                                 19
DAYS >= .10         7                                 13
DAYS >= .50         3                                  5
DAYS >= 1.00        0                                  2
GREATEST
 24 HR. TOTAL    1.05   05/26 TO 05/27

SNOWFALL (INCHES)
RECORDS
 TOTAL           10.7   1983
 SNOW DEPTH        10   05/13/1983
TOTALS            0.0               1.2    -1.2      0.0
 LIQUID EQUIV    0.00              0.10   -0.10     0.00
SINCE 7/1        25.7              34.8    -9.1    108.6
 LIQUID 7/1      2.57              3.50   -0.93    10.86
SNOWDEPTH AVG.      0                                  0
DAYS >= TRACE       0                                  0
DAYS >= 1.0         0                                  0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.0   05/31 TO 05/31

DEGREE_DAYS
HEATING TOTAL     361               324      37      412
 SINCE 7/1       7088              8331   -1243     9505
COOLING TOTAL       7                16      -9        0
 SINCE 1/1         10                17      -7        0
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              11.1
RESULTANT WIND SPEED/DIRECTION   2/313
HIGHEST WIND SPEED/DIRECTION    46/310    DATE  05/06
HIGHEST GUST SPEED/DIRECTION    61/270    DATE  05/31

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           14
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     61

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                       8
LIGHT RAIN               18     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      11     FOG W/VIS <= 1/4 MILE      2
HAZE                      0

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

&&

MAY WEATHER SUMMARY
NATIONAL WEATHER SERVICE GLASGOW MT
740 PM MDT TUE JUN 5 2012

THIS PAST MAY WAS WETTER AND A LITTLE COOLER THAN NORMAL. THE
AVERAGE OF TEMPERATURE OF 53.3 DEGREES WAS 1.8 DEGREES BELOW NORMAL.
THE AVERAGE HIGH WAS 65.9 DEGREES...THE AVERAGE LOW 40.8 DEGREES.
THE WARMEST WAS 86 DEGREES ON THE 16TH...WHILE THE COLDEST WAS 29
DEGREES ON THE 11TH.

MAY STARTED OFF ON THE COOL AND WET SIDE THOUGH THE 11TH...WITH
HIGHS MAINLY IN THE 50S AND 60S. THE MIDDLE PART OF THE MONTH
THOUGH...FROM THE 12TH THROUGH THE 22ND...WAS WARMER AND DRIER THAN
NORMAL...HIGHS MOSTLY IN THE 70S. BUT THE MONTH FINISHED COLD AND
WET...WITH BELOW NORMAL TEMPERATURES IN EACH OF THE THE LAST 9 DAYS.
THIS INCLUDED A RECORD COLD HIGH FOR THE DATE OF 47 DEGREES ON THE
26TH.

THE LAST FREEZE OF THE SEASON OCCURRED ON THE 11TH...WHICH IS ABOUT
THE NORMAL.

THE END OF MONTH COOL SPELL RESULTED IN AN END TO 10 MONTHS IN A
ROW THAT HAVE BEEN WARMER THAN NORMAL.

THIS ALSO CONTINUED THE TREND TOWARD COOLER AND WETTER MAYS IN
RECENT YEARS. 6 OF THE PAST 7 MAYS HAVE BEEN COOLER THAN
NORMAL...WHILE 9 OF THE LAST 11 MAYS HAVE BEEN WETTER THAN NORMAL.

THIS MAY HAD WINDS GUSTING OVER 30 MPH ON 15 DAYS...WHILE THERE WAS
ONLY 1 DAY THAT FAILED TO REACH 20 MPH OR MORE FOR HIGHEST GUST OF
THE DAY. AVERAGE WIND SPEED FOR THE DAY WAS OVER 10 MPH ON 16
DAYS...LESS THAN 10 MPH ON 15 DAYS. DENSE FOG OR VISIBILITY
RESTRICTED TO A QUARTER OF A MILE OR LESS OCCURRED ON TWO
DAYS...WHILE THUNDERSTORMS OCCURRED ON JUST ONE DAY.

SHORT FORMAT STATISTICS FOR MAY 2012:

TEMPERATURE                          DEP FM NORM
  WARMEST             86   ON 16TH
  COLDEST             29   ON 9TH
  AVG HIGH            65.9            -  1.9
  AVG LOW             34.2            -  1.5
  AVG TEMP            47.3            -  1.8

DEGREE DAYS
  HEATING              361            +   37
  SEASON TOTAL        7088            - 1243
  COOLING                7            -    9
  SEASON TOTAL          10            -    7

PRECIPITATION
  TOTAL               3.06            +  1.14
  YEARS TOTAL         5.71            +  1.90
  DAYS MEASURABLE     14              +  4
  MOST IN 24 HRS      1.05 ON 26-27TH

SNOWFALL
  TOTAL               0               - 1.2
  SEASON TOTAL       25.7             - 9.2
  DAYS MEASURABLE     0               - 1
  MOST IN 24 HOURS    0
  GREATEST DEPTH      0

WIND IN MPH
  STRONGEST GUST   NW 54 MPH ON 6TH
  AVG SPEED         11.1 MPH          -  0.9
  WINDIEST DAY      23.8 MPH ON 6TH
  CALMEST DAY        6.0 MPH ON 19TH


$$

SIMONSEN