Climatological Report (Monthly)
Issued by NWS Billings, MT
Issued by NWS Billings, MT
982
CXUS55 KBYZ 011135
CLMBIL
CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
528 AM MDT SUN JUN 01 2025
...................................
...THE BILLINGS MT CLIMATE SUMMARY FOR THE MONTH OF MAY 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1934 TO 2025
WEATHER OBSERVED NORMAL DEPART
VALUE DATE(S) VALUE FROM
NORMAL
................................................
TEMPERATURE (F)
HIGHEST 87 05/10
LOWEST 35 05/07
AVG. MAXIMUM 70.0 66.9 3.1
AVG. MINIMUM 46.1 43.8 2.3
MEAN 58.1 55.3 2.8
DAYS MAX >= 90 0
DAYS MAX <= 32 0
DAYS MIN <= 32 0
DAYS MIN <= 0 0
PRECIPITATION (INCHES)
TOTALS 2.60 2.36 0.24
DAYS >= .01 10
DAYS >= .10 6
DAYS >= .50 2
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 1.00 05/13 TO 05/14
SNOWFALL (INCHES)
TOTALS T 0.9 -0.9
SINCE 7/1 64.2 57.4 6.8
SNOWDEPTH AVG. 0
DAYS >= TRACE 1
DAYS >= 1.0 0
GREATEST
SNOW DEPTH 0
24 HR TOTAL T
DEGREE DAYS
HEATING TOTAL 224 314 -90
SINCE 7/1 6206 6665 -459
COOLING TOTAL 16 14 2
SINCE 1/1 16 15 1
................................................
WIND (MPH)
AVERAGE WIND SPEED 8.7
HIGHEST WIND SPEED/DIRECTION 35/360 DATE 05/12
HIGHEST GUST SPEED/DIRECTION 47/360 DATE 05/12
AVERAGE RH (PERCENT) 60
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 5 MIXED PRECIP 0
HEAVY RAIN 2 RAIN 6
LIGHT RAIN 17 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 1 SLEET 0
FOG 7 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 2025 MONTH IN REVIEW FOR BILLINGS...
BELOW IS A SUMMARY OF THE TEMPERATURE...PRECIPITATION...AND WIND
STATISTICS FOR BILLINGS FOR MAY 2025. ALL TEMPERATURES ARE IN
DEGREES FAHRENHEIT AND ALL PRECIPITATION AMOUNTS ARE IN INCHES. NORMALS
ARE 30 YEAR AVERAGES CALCULATED FROM 1991 TO 2020. MONTHLY RANKINGS
FOR PRECIPITATION...SNOWFALL...AND TEMPERATURES USE A PERIOD OF RECORD
THAT STARTED IN AUGUST 1934 AT THE BILLINGS AIRPORT. MONTHLY RANKINGS
FOR WIND USE A PERIOD OF RECORD THAT STARTED IN 1984.
NUMBERS DENOTED WITH AN * IS MISSING DATA IN THE CALCULATION.
...BILLINGS MONTHLY PRECIPITATION...
MONTH 2025 VALUES NORMALS DEPARTURE RANKING
MAY T 2.36 -2.36 TIED FOR THE 28TH WETTEST OUT OF 91 YEARS
(RECORD WETTEST WAS 0.38 TIED IN 1997)
(WETTEST SINCE 0.08 IN 2024)
...BILLINGS MAY 2025 BROKEN OR TIED DAILY PRECIPITATION RECORDS...
NONE
...BILLINGS MONTHLY SNOWFALL...
MONTH 2025 VALUES NORMALS DEPARTURE RANKING
MAY 0.0 0.9 0.9 TIED FOR THE RECORD LEAST SNOWIEST OUT OF 91 YEARS
(OLD RECORD LEAST SNOWIEST WAS 0.0 TIED IN 2023)
...BILLINGS MAY 2025 BROKEN OR TIED DAILY SNOWFALL RECORDS...
NONE
...BILLINGS AVERAGE TEMPERATURES...
MONTH 2025 VALUES NORMALS DEPARTURE RANKING
MAY M 55.3 M NOT AVAILABLE
...BILLINGS AVERAGE HIGH TEMPERATURES...
MONTH 2025 VALUES NORMALS DEPARTURE RANKING
MAY M 66.9 M NOT AVAILABLE
...BILLINGS MAY 2025 BROKEN OR TIED WARMEST DAILY HIGH TEMPERATURE RECORDS...
NONE
...BILLINGS MAY 2025 BROKEN OR TIED COLDEST DAILY HIGH TEMPERATURE RECORDS...
NONE
...BILLINGS AVERAGE LOW TEMPERATURES...
MONTH 2025 VALUES NORMALS DEPARTURE RANKING
MAY M 43.8 M NOT AVAILABLE
...BILLINGS MAY 2025 BROKEN OR TIED WARMEST DAILY LOW TEMPERATURE RECORDS...
NONE
...BILLINGS MAY 2025 BROKEN OR TIED COLDEST DAILY LOW TEMPERATURE RECORDS...
NONE
...BILLINGS MONTHLY WIND AVERAGES...
MONTH 2025 VALUES NORMALS DEPARTURE RANKING
MAY M 9.9 M NOT AVAILABLE
$$