Climatological Report (Monthly)
Issued by NWS Glasgow, MT

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CXUS55 KGGW 010916
CLMGGW

CLIMATE REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
145 AM MST SUN JAN 1 2017

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

...THE GLASGOW CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1893 TO 2016

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              69   12/08/1939
                        12/03/1939
 LOW              -47   12/18/1929
                        12/19/1924
HIGHEST            43   12/04                         56  12/09
LOWEST            -29   12/17                        -12  12/26
AVG. MAXIMUM     21.2              26.0    -4.8     30.0
AVG. MINIMUM      2.7               6.6    -3.9     12.9
MEAN             12.0              16.3    -4.3     21.4
DAYS MAX >= 90      0                                  0
DAYS MAX <= 32     22                                 21
DAYS MIN <= 32     31                                 30
DAYS MIN <= 0      14                                  7

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         1.49   1949
 MINIMUM            T   1932
TOTALS           0.36              0.40   -0.04     0.71
DAILY AVG.       0.01              0.01    0.00     0.02
DAYS >= .01         8                                  7
DAYS >= .10         1                                  3
DAYS >= .50         0                                  0
DAYS >= 1.00        0                                  0
GREATEST
 24 HR. TOTAL    0.18   12/10 TO 12/11

SNOWFALL (INCHES)
RECORDS
 TOTAL           25.3   2008
 SNOW DEPTH        15   12/30/2003
                        12/31/1996
                        12/30/1996
TOTALS            9.2               8.0     1.2     12.8
 LIQUID EQUIV      MM              0.80   -0.80     1.28
SINCE 7/1         9.6              14.6    -5.0     13.8
 LIQUID 7/1      0.04              1.50   -1.46     1.38
SNOWDEPTH AVG.      2                                  4
DAYS >= TRACE      15                                 13
DAYS >= 1.0         3                                  4
GREATEST
 SNOW DEPTH         5   12/12                          7  12/27
                                                          12/26
                                                          12/25
 24 HR TOTAL      4.4   12/10 TO 12/11

DEGREE_DAYS
HEATING TOTAL    1637              1509     128     1343
 SINCE 7/1       3256              3502    -246     3005
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        434               533     -99      619
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              13.2
RESULTANT WIND SPEED/DIRECTION   6/282
HIGHEST WIND SPEED/DIRECTION    51/280    DATE  12/20
HIGHEST GUST SPEED/DIRECTION    60/270    DATE  12/20

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           11
NUMBER OF DAYS PC             14
NUMBER OF DAYS CLOUDY          6

AVERAGE RH (PERCENT)     73

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

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

$$

DECEMBER WAS A MONTH WHICH WAS SLIGHTLY COLDER THAN NORMAL AND
SLIGHTLY DRIER THAN NORMAL. A TOTAL OF 0.36 INCHES OF LIQUID
EQUIVALENT PRECIPITATION FELL IN GLASGOW DURING THE MONTH, WHICH WAS
0.02 INCHES BELOW THE NORMAL OF 0.38 INCHES. THE HIGHEST SINGLE DAY
AMOUNT FELL ON THE 10TH, WHICH WAS 0.18 INCHES. THERE WAS ONLY ONE
DAY DURING THE MONTH WITH A TRACE OF RAINFALL. A TOTAL OF 9.2 INCHES
OF SNOW FELL DURING THE MONTH, WHICH IS ABOUT 1.2 INCHES ABOVE
NORMAL. THE GREATEST SINGLE DAY SNOWFALL OCCURRED ON THE 10TH, WITH
4.4 INCHES FALLING THAT DAY. THIS WAS THE ONLY DAY OF THE MONTH IN
WHICH HEAVY SNOWFALL WAS REPORTED. LIGHT SNOWFALL WAS REPORTED ON 13
DAYS OF THE MONTH, AND HEAVY FOG WAS REPORTED ONLY ONCE.

THE AVERAGE TEMPERATURE FOR THE MONTH WAS 12.0 DEGREES, WHICH WAS
4.3 DEGREES COLDER THAN NORMAL. THE AVERAGE HIGH TEMPERATURE WAS
21.2 DEGREES, AND THE AVERAGE LOW TEMPERATURE WAS 2.7 DEGREES. THE
WARMEST TEMPERATURE OF THE MONTH WAS 43 DEGREES, WHICH WAS REACHED
ON THE 4TH. THE COLDEST TEMPERATURE OF THE MONTH WAS 29 DEGREES
BELOW ZERO, WHICH WAS REACHED ON THE 17TH.

THE WIND GUSTED TO 30 MPH OR GREATER ON 18 DAYS, WITH A PEAK WIND OF
60 MPH RECORDED ON THE 21ST.

LOOKING AHEAD TO JANUARY, NORMAL HIGH TEMPERATURES START THE MONTH
IN THE LOW 20S WITH LOWS IN THE MID SINGLE DIGITS ABOVE ZERO. BY THE
END OF THE MONTH, NORMAL HIGHS ARE IN THE MID 20S WITH LOWS IN THE
MID SINGLE DIGITS ABOVE ZERO. PRECIPITATION FOR THE MONTH AVERAGES
0.36 INCHES WITH AN AVERAGE SNOWFALL OF 8.0 INCHES.

$$

BIGELBACH


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