Climatological Report (Monthly)
Issued by NWS Glasgow, MT
Issued by NWS Glasgow, MT
849
CXUS55 KGGW 010959
CLMGGW
CLIMATE REPORT
NATIONAL WEATHER SERVICE GLASGOW, MT
313 AM MDT SUN JUN 01 2025
...................................
...THE GLASGOW MT CLIMATE SUMMARY FOR THE MONTH OF MAY 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1893 TO 2025
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 2 05/18/2024
HIGHEST 91 05/10 83
LOWEST 34 05/02 31
AVG. MAXIMUM 71.3 67.7 3.6 66.9
AVG. MINIMUM 45.1 1.8 44.0
MEAN 58.2 55.5 2.7 55.5
DAYS MAX >= 90 1 0
DAYS MAX <= 32 0 0
DAYS MIN <= 32 0 1
DAYS MIN <= 0 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 6.97 2011
MINIMUM 0.03 1958
TOTALS 1.43 2.22 -0.79 2.67
DAILY AVG. 0.05 0.07 -0.02 0.09
DAYS >= .01 9 18
DAYS >= .10 5
DAYS >= .50 0 2
DAYS >= 1.00 0 1
GREATEST
24 HR. TOTAL 0.35 05/21 TO 05/21
SNOWFALL (INCHES)
RECORDS
TOTAL 10.7 1983
SNOW DEPTH 10 05/13/1983
TOTALS 0.0 0.9 -0.9 T
LIQUID EQUIV 0.00 0.00 0.00 T
SINCE 7/1 21.0 40.7 -19.7 MM
LIQUID 7/1 2.10 4.00 -1.90 MM
SNOWDEPTH AVG. 0 0
DAYS >= TRACE 0 1
DAYS >= 1.0 0 0
GREATEST
SNOW DEPTH 0 0 MM
24 HR TOTAL MM
DEGREE DAYS
HEATING TOTAL 235 310 -75 295
SINCE 7/1 7408 8157 -749 MM
COOLING TOTAL 29 16 13 4
SINCE 1/1 29 16 13 MM
................................................................
WIND (MPH)
AVERAGE WIND SPEED 13.5
HIGHEST WIND SPEED/DIRECTION 51/170 DATE 05/10
HIGHEST GUST SPEED/DIRECTION 69/160 DATE 05/10
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.37
NUMBER OF DAYS FAIR 18
NUMBER OF DAYS PC 6
NUMBER OF DAYS CLOUDY 7
AVERAGE RH (PERCENT) 55
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 2 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 3
LIGHT RAIN 11 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 5 FOG W/VIS <= 1/4 MILE 0
HAZE 1
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
&&
MAY WAS ANOTHER MONTH OF ABOVE NORMAL TEMPERATURES AND BELOW NORMAL
PRECIPITATION. THE AVERAGE TEMPERATURE WAS 58.2 DEGREES WHICH WAS
2.7 DEGREES ABOVE NORMAL. THE HIGH FOR THE MONTH WAS 91 ON THE 10TH.
THE LOW FOR THE MONTH WAS 34 ON THE 2ND. FOR THE SPRING MONTHS, THE
AVERAGE TEMPERATURE OF 47.7 PUTS IT AS THE 7TH WARMEST SPRING.
PRECIPITATION WAS BELOW NORMAL WITH 1.43 INCHES OF RAINFALL. MOST OF
PRECIPITATION FOR THE MONTH TOTAL FELL ON THE 17TH THROUGH 23RD.
NORMAL PRECIPITATION FOR MAY IS 2.22 INCHES. WITH 1.87 INCHES FROM
MARCH THROUGH MAY, THIS WAS THE DRIEST SPRING SINCE 2017.
THE PEAK WIND SPEED FOR THE MONTH WAS 69 MPH ON THE 10TH. THERE WERE
ALSO PEAK WINDS OF 50 MPH ON THE 5TH, 49 MPH ON THE 12TH AND 48 MPH
ON THE 17TH AND 18TH. THE WINDIEST DAY WAS ON THE 18TH WITH AN
AVERAGE WIND SPEED OF 24.9 MPH.
LOOKING AHEAD TO JUNE, THE NORMAL HIGH STARTS AT 72 ON THE 1ST AND
WARMS TO 80 AT THE END OF THE MONTH. THE NORMAL LOW BEGINS AT 49 ON
THE 1ST AND WARMS TO 55 BY THE END OF THE MONTH. NORMAL
PRECIPITATION FOR JUNE IS 2.83 INCHES.
$$