Climatological Report (Monthly)
Issued by NWS Billings, MT
Issued by NWS Billings, MT
115
CXUS55 KBYZ 011153
CLMSHR
CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
451 AM MST THU JAN 01 2026
...................................
...THE SHERIDAN WY CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1907 TO 2025
WEATHER OBSERVED NORMAL DEPART
VALUE DATE(S) VALUE FROM
NORMAL
................................................
TEMPERATURE (F)
HIGHEST 68 12/25
LOWEST -6 12/28
AVG. MAXIMUM 45.4 36.7 8.7
AVG. MINIMUM 19.0 12.2 6.8
MEAN 32.2 24.5 7.7
DAYS MAX >= 90 0
DAYS MAX <= 32 5
DAYS MIN <= 32 27
DAYS MIN <= 0 2
PRECIPITATION (INCHES)
TOTALS 1.38 0.54 0.84
DAYS >= .01 10
DAYS >= .10 6
DAYS >= .50 0
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.70 12/11 TO 12/12
DEGREE DAYS
HEATING TOTAL 1009 1257 -248
SINCE 7/1 2462 3090 -628
COOLING TOTAL 0 0 0
SINCE 1/1 396 442 -46
................................................
WIND (MPH)
AVERAGE WIND SPEED 7.4
HIGHEST WIND SPEED/DIRECTION 51/300 DATE 12/17
51/310 12/18
HIGHEST GUST SPEED/DIRECTION 79/240 DATE 12/19
AVERAGE RH (PERCENT) 67
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 3
LIGHT RAIN 7 FREEZING RAIN 0
LT FREEZING RAIN 1 HAIL 0
HEAVY SNOW 2 SNOW 3
LIGHT SNOW 9 SLEET 0
FOG 9 FOG W/VIS <= 1/4 MILE 3
HAZE 1
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
&&
...DECEMBER 2025 MONTH IN REVIEW FOR SHERIDAN...
BELOW IS A SUMMARY OF THE TEMPERATURE AND PRECIPITATION
STATISTICS FOR SHERIDAN FOR DECEMBER 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 AND TEMPERATURES USE A PERIOD
OF RECORD THAT STARTED IN MAY 1934 AT OR NEAR THE SHERIDAN AIRPORT.
NUMBERS DENOTED WITH AN * IS MISSING DATA IN THE CALCULATION.
...SHERIDAN MONTHLY PRECIPITATION...
MONTH 2025 VALUES NORMALS DEPARTURE RANKING
DECEMBER 1.38 0.54 +0.84 4TH WETTEST OUT OF 119 YEARS
(RECORD WETTEST WAS 2.41 IN 1989)
(WETTEST SINCE 2.41 IN 1989)
...SHERIDAN DECEMBER 2025 BROKEN OR TIED DAILY PRECIPITATION RECORDS...
0.33 ON DECEMBER 11 (TIED RECORD IN 1916)
...SHERIDAN AVERAGE TEMPERATURES...
MONTH 2025 VALUES NORMALS DEPARTURE RANKING
DECEMBER 32.2 24.5 +7.7 5TH WARMEST OUT OF 119 YEARS
(RECORD WARMEST WAS 35.0 IN 1957)
(WARMEST SINCE 34.6 IN 2024)
...SHERIDAN AVERAGE HIGH TEMPERATURES...
MONTH 2025 VALUES NORMALS DEPARTURE RANKING
DECEMBER 45.4 36.7 +8.7 7TH WARMEST OUT OF 119 YEARS
(RECORD WARMEST WAS 48.6 IN 2023)
(WARMEST SINCE 47.9 IN 2024)
...SHERIDAN DECEMBER 2025 BROKEN OR TIED WARMEST DAILY HIGH TEMPERATURE RECORDS...
63 ON DECEMBER 16 (TIED RECORD IN 1939)
68 ON DECEMBER 25 (OLD RECORD 61 IN 1947)
56 ON DECEMBER 31 (TIED RECORD IN 1996)
...SHERIDAN DECEMBER 2025 BROKEN OR TIED COLDEST DAILY HIGH TEMPERATURE RECORDS...
NONE
...SHERIDAN AVERAGE LOW TEMPERATURES...
MONTH 2025 VALUES NORMALS DEPARTURE RANKING
DECEMBER 19.0 12.2 +6.8 7TH WARMEST OUT OF 119 YEARS
(RECORD WARMEST WAS 21.5 IN 1957)
(WARMEST SINCE 21.2 IN 2024)
...SHERIDAN DECEMBER 2025 BROKEN OR TIED WARMEST DAILY LOW TEMPERATURE RECORDS...
38 ON DECEMBER 17 (OLD RECORD 37 IN 1939)
36 ON DECEMBER 25 (OLD RECORD 32 IN 1943)
...SHERIDAN DECEMBER 2025 BROKEN OR TIED COLDEST DAILY LOW TEMPERATURE RECORDS...
NONE
$$