Climatological Report (Monthly) Issued by NWS
000
CXUS55 KTFX 010802
CLMHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
202 AM MDT THU JUN 01 2023
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...THE HELENA MT CLIMATE SUMMARY FOR THE MONTH OF MAY 2023...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1866 TO 2023
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 95 05/28/1919
LOW 17 05/02/1954
HIGHEST 87 05/21 70 17 81 05/26
LOWEST 36 05/10 36 0 28 05/11
AVG. MAXIMUM 73.0 66.4 6.6 63.7
AVG. MINIMUM 48.1 41.5 6.6 41.2
MEAN 60.5 53.9 6.6 52.5
DAYS MAX >= 90 0 0.3 -0.3 0
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 3.4 -3.4 2
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 6.67 1927
MINIMUM 0.24
TOTALS 1.21 1.95 -0.74 1.14
DAYS >= .01 15 11.2 3.8
DAYS >= .10 3 5.3 -2.3
DAYS >= .50 0 1.1 -1.1
DAYS >= 1.00 0 0.1 -0.1
GREATEST
24 HR. TOTAL 0.42 05/04 TO 05/05
SNOWFALL (INCHES)
RECORDS
TOTAL 13.9 1927
24 HR TOTAL 12.5 05/10/1967 TO 05/10/1967
TOTALS 0.0 0.1 -0.1 T
SINCE 7/1 48.3 37.2 11.1
SNOWDEPTH AVG. 0
DAYS >= TRACE 0 0.2 -0.2
DAYS >= 1.0 0 0.0 0.0
GREATEST
SNOW DEPTH 0
24 HR TOTAL MM
DEGREE DAYS
HEATING TOTAL 147 350 -203 382
SINCE 7/1 7445 7357 88 MM
COOLING TOTAL 15 7 8 2
SINCE 1/1 15 7 8 MM
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WIND (MPH)
AVERAGE WIND SPEED 6.2
HIGHEST WIND SPEED/DIRECTION 32/280 DATE 05/22
HIGHEST GUST SPEED/DIRECTION 47/270 DATE 05/22
SKY COVER
AVERAGE SKY COVER 0.46
AVERAGE RH (PERCENT) 54
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 10 MIXED PRECIP 0
HEAVY RAIN 2 RAIN 4
LIGHT RAIN 17 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 2 FOG W/VIS <= 1/4 MILE 0
HAZE 7
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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