National Weather Service Weather Forecast Office

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

000
CXUS55 KGGW 031204
CLAGGW

CLIMATE REPORT
NATIONAL WEATHER SERVICE GLASGOW, MT
504 AM MST MON JAN 03 2022

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

...THE GLASGOW MT CLIMATE SUMMARY FOR THE YEAR OF 2021...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1893 TO 2022

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH            113   07/31/1900
 LOW             -59   02/15/1936
HIGHEST          110                 MM      MM
LOWEST           -28                 MM      MM
MEAN            46.9               43.9    +3.0     45.2

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       22.96   2011
TOTALS          6.63R             13.44   -6.81    12.35

SNOWFALL (INCHES)
RECORDS
 TOTAL          83.4   2011
TOTALS          23.2               40.7   -17.5     34.2

DEGREE DAYS
HEATING TOTAL   7503
COOLING TOTAL   1002
..............................................................



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

&&

2021 WILL BE REMEMBERED AS THE DRIEST YEAR ON RECORD FOR GLASGOW.
THE TOTAL FOR THE YEAR WAS ONLY 6.63 INCHES WHICH WAS 6.81 INCHES
BELOW NORMAL. THE PREVIOUS DRIEST YEAR ON RECORD WAS 2017 WITH 6.64
INCHES. ONLY AUGUST AND DECEMBER HAD ABOVE NORMAL PRECIPITATION.
AUGUST WAS THE WETTEST MONTH WITH 1.83 INCHES AND SEPTEMBER WAS THE
DRIEST MONTH WITH ONLY 0.03 INCH.

IT WAS THE SECOND WARMEST YEAR ON RECORD WITH AN AVERAGE TEMPERATURE
OF 46.9 DEGREES. THE WARMEST YEAR ON RECORD IS 1987 WITH AND AVERAGE
TEMPERATURE OF 47.6 DEGREES. ONLY FEBRUARY, MAY, AND DECEMBER WERE
BELOW NORMAL WITH TEMPERATURES. THERE WERE 15 DAYS WITH RECORD HIGHS
AND 10 DAYS WITH DAILY HIGH MINIMUMS. THE HIGH FOR THE YEAR WAS 110
DEGREES ON JULY 19 WHICH WAS THE FIRST TIME GLASGOW HAD A HIGH OF
110 DEGREES OR HIGHER SINCE JULY 18, 1936. JULY`S AVERAGE
TEMPERATURE OF 79.2 DEGREES WAS THE SECOND WARMEST MONTH ON RECORD
WITH ONLY JULY 1936 BEING WARMER WITH A AVERAGE OF 81.2 DEGREES.
THERE WERE 15 DAYS WITH A HIGH TEMPERATURE OF 100 DEGREES OR HIGHER
WHICH WAS SECOND TO 1936 FOR THE MOST 100+ DEGREE HIGHS IN A YEAR.
1936 HAS 22 DAYS WITH A HIGH OF 100 OR HIGHER.

IT WAS THE WARMEST SUMMER ON RECORD WITH AN AVERAGE TEMPERATURE OF
74.3 DEGREES WHICH BEAT THE PREVIOUS RECORD OF 74.2 DEGREES SET IN
1936.

A MONTHLY RECORD HIGH FOR DECEMBER WAS TIED ON DECEMBER 1 WITH A
HIGH OF 69. IT TIED DECEMBER 3 AND 8, 1939 FOR WARMEST DECEMBER
HIGH.

THERE WERE NO RECORD LOWS SET IN 2021 AND ONLY ONE RECORD LOW MAX
TEMPERATURE WHICH WAS 40 DEGREES ON MAY 21. THE LOW FOR THE YEAR WAS
-28 DEGREES ON FEBRUARY 14. FEBRUARY WAS THE COLDEST MONTH WITH AN
AVERAGE TEMPERATURE OF 10.8 DEGREES.

THERE WERE RECORD MONTHLY WIND GUSTS SET IN JANUARY WITH 79 MPH ON
THE 13TH, JUNE WITH 70 MPH ON THE 8TH, AND NOVEMBER WITH 69 MPH ON
THE 16TH.

2021 WAS ALSO KNOWN FOR ITS LACK OF SNOW UNTIL DECEMBER DUMPED 16.2
INCHES. BETWEEN JANUARY AND MARCH HAD ONLY 1.7 INCHES OF SNOW FELL.
APRIL HAD 3.3 INCHES AND MAY HAD 2.0 INCHES OF SNOW. OCTOBER AND
NOVEMBER ONLY HAD A TRACE OF SNOW.

$$