Climatological Report (Monthly)
Issued by NWS
Issued by NWS
252
CXUS55 KBYZ 012115
CLMLVM
CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
314 PM MDT WED OCT 01 2025
...................................
...THE LIVINGSTON MT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1948 TO 2025
WEATHER OBSERVED NORMAL DEPART
VALUE DATE(S) VALUE FROM
NORMAL
................................................
TEMPERATURE (F)
HIGHEST 91 09/02
09/03
LOWEST 32 09/06
AVG. MAXIMUM 78.4 73.5 4.9
AVG. MINIMUM 42.4 41.2 1.2
MEAN 60.4 57.3 3.1
DAYS MAX >= 90 2
DAYS MAX <= 32 0
DAYS MIN <= 32 1
DAYS MIN <= 0 0
PRECIPITATION (INCHES)
TOTALS 1.05 1.20 -0.15
DAYS >= .01 8
DAYS >= .10 4
DAYS >= .50 0
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.42 09/21 TO 09/22
DEGREE DAYS
HEATING TOTAL 141 250 -109
SINCE 7/1 203 346 -143
COOLING TOTAL 11 20 -9
SINCE 1/1 197 276 -79
................................................
WIND (MPH)
AVERAGE WIND SPEED 8.6
HIGHEST WIND SPEED/DIRECTION 36/240 DATE 09/07
HIGHEST GUST SPEED/DIRECTION 51/130 DATE 09/11
AVERAGE RH (PERCENT) 53
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 3 MIXED PRECIP 0
HEAVY RAIN 0 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 4 FOG W/VIS <= 1/4 MILE 0
HAZE 3
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
&&
THIS IS AN AUTOMATED...UNATTENDED WEATHER STATION AND MAY
UNDERESTIMATE WINTER PRECIPITATION.
...SEPTEMBER 2025 MONTH IN REVIEW FOR LIVINGSTON...
BELOW IS A SUMMARY OF THE TEMPERATURE AND PRECIPITATION
STATISTICS FOR LIVINGSTON FOR SEPTEMBER 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 JULY 1948 AT OR NEAR THE LIVINGSTON AIRPORT.
NUMBERS DENOTED WITH AN * IS MISSING DATA IN THE CALCULATION.
... MONTHLY PRECIPITATION...
MONTH 2025 VALUES NORMALS DEPARTURE RANKING
SEPTEMBER 1.05 1.20 -0.15 35TH DRIEST OUT OF 78 YEARS
(RECORD DRIEST WAS 0.04 IN 1964)
(DRIEST SINCE 0.48 IN 2022)
... SEPTEMBER 2025 BROKEN OR TIED DAILY PRECIPITATION RECORDS...
NONE
NOTE: SINCE THE LATE 1990S...LIVINGSTON BECAME AN AUTOMATED AND UNATTENDED
WEATHER STATION. PRECIPITATION AMOUNTS IN THE WINTER MAY BE UNDERESTIMATED.
... AVERAGE TEMPERATURES...
MONTH 2025 VALUES NORMALS DEPARTURE RANKING
SEPTEMBER 60.4 57.3 +3.1 TIED FOR THE 15TH WARMEST OUT OF 78 YEARS
(RECORD WARMEST WAS 64.2 IN 1998)
(WARMEST SINCE 62.4 IN 2024)
... AVERAGE HIGH TEMPERATURES...
MONTH 2025 VALUES NORMALS DEPARTURE RANKING
SEPTEMBER 78.4 73.5 +4.9 11TH WARMEST OUT OF 78 YEARS
(RECORD WARMEST WAS 81.6 IN 1998)
(WARMEST SINCE 80.0 IN 2024)
... SEPTEMBER 2025 BROKEN OR TIED WARMEST DAILY HIGH TEMPERATURE RECORDS...
NONE
... SEPTEMBER 2025 BROKEN OR TIED COLDEST DAILY HIGH TEMPERATURE RECORDS...
NONE
... AVERAGE LOW TEMPERATURES...
MONTH 2025 VALUES NORMALS DEPARTURE RANKING
SEPTEMBER 42.4 41.2 +1.2 TIED FOR THE 28TH WARMEST OUT OF 78 YEARS
(RECORD WARMEST WAS 47.3 IN 1963)
(WARMEST SINCE 44.7 IN 2024)
... SEPTEMBER 2025 BROKEN OR TIED WARMEST DAILY LOW TEMPERATURE RECORDS...
NONE
... SEPTEMBER 2025 BROKEN OR TIED COLDEST DAILY LOW TEMPERATURE RECORDS...
32 ON SEPTEMBER 6 (TIED RECORD IN 1956)
$$