Climatological Report (Monthly)
Issued by NWS
Issued by NWS
072
CXUS55 KRIW 020137
CLMLND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
608 PM MST SAT FEB 01 2025
...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR LANDER FOR THE MONTH OF
JANUARY 2025...
...OFFICIAL CLIMATE DATA FOR THE MONTH OF JANUARY 2025 WILL BE
AVAILABLE IN APPROXIMATELY 60 DAYS FROM THE NATIONAL CENTERS FOR
ENVIRONMENTAL INFORMATION (HTTP://WWW.NCDC.NOAA.GOV/CDO-
WEB/DATASETS). UNOFFICIAL ASOS DAILY SUMMARIES ARE AVAILABLE ON THE
INTERNET AT HTTP://WWW.WEATHER.GOV/CLIMATE/INDEX.PHP?WFO=RIW
...LANDER WAS COLDER AND WETTER THAN NORMAL IN JANUARY....
THE AVERAGE TEMPERATURE FOR LANDER IN JANUARY WAS 14.3 DEGREES WHICH
WAS 7 DEGREES BELOW NORMAL. THE WARMEST READING FOR THE MONTH WAS 39
DEGREES ON THE 31ST. THE COLDEST TEMPERATURE WAS 18 DEGREES BELOW
ZERO ON THE 20TH. NO TEMPERATURE RECORDS WERE BROKEN THIS MONTH.
PRECIPITATION FOR THE MONTH WAS 0.87 INCHES...WHICH IS 171 PERCENT
OF NORMAL. THE WETTEST 24-HOUR PERIOD WAS THE 17TH-18TH WHEN 0.46
INCHES OF PRECIPITATION FELL. THE 17TH HAD 0.40 INCHES AND BROKE THE
1912 RECORD OF 0.20 INCHES.
SNOWFALL FOR THE MONTH WAS 15.9 INCHES. THIS IS 194 PERCENT OF
NORMAL. THE SNOWIEST 24-HOUR PERIOD WAS THE 17TH-18TH WITH 7.2
INCHES. THE 17TH HAD 6.7 INCHES AND BROKE THE 1960 RECORD OF 4.1
INCHES. THE HIGHEST WIND GUST WAS 34 MPH AND OCCURRED ON THE 22ND
FROM THE NORTHWEST.
...THE LANDER WY CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1891 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..............................................................
TEMPERATURE (F)
RECORD
HIGH 64 01/01/1918
LOW -39 01/17/1930
HIGHEST 39 01/31
LOWEST -18 01/20
AVG. MAXIMUM 25.6 32.8 -7.2
AVG. MINIMUM 2.9 9.8 -6.9
MEAN 14.3 21.3 -7.0
DAYS MAX >= 90 0
DAYS MAX <= 32 24
DAYS MIN <= 32 31
DAYS MIN <= 0 9
PRECIPITATION (INCHES)
RECORD
MAXIMUM 2.55 2023
MINIMUM 0.00 1952
TOTALS 0.87 0.51 0.36 0.46
DAILY AVG. 0.03 0.02 0.01
DAYS >= .01 8
DAYS >= .10 3
DAYS >= .50 0
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.46 01/17 TO 01/18
STORM TOTAL 0.40
SNOWFALL (INCHES)
TOTALS 15.9 8.2 7.7
SINCE 7/1 27.6 40.1 -12.5
SNOWDEPTH AVG. 4
DAYS >= 1.0 6
DEGREE DAYS
HEATING TOTAL 1566 1355 211
SINCE 7/1 3981 4529 -548
COOLING TOTAL 0 0 0
SINCE 1/1 0 0 0
..............................................................
WIND (MPH)
AVERAGE WIND SPEED 3.7
RESULTANT WIND SPEED/DIRECTION 0/280
HIGHEST WIND SPEED/DIRECTION 24/300 DATE 01/22
HIGHEST GUST SPEED/DIRECTION 34/300 DATE 01/22
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.31
NUMBER OF DAYS FAIR 18
NUMBER OF DAYS PC 10
NUMBER OF DAYS CLOUDY 3
AVERAGE RH (PERCENT) 69
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 0
LIGHT RAIN 0 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 2 SNOW 3
LIGHT SNOW 10 SLEET 0
FOG 12 FOG W/VIS <= 1/4 MILE 5
HAZE 10
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
LOOKING AHEAD TO FEBRUARY 2025. THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 34 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 11 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 42
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 18. THE AVERAGE MONTHLY
PRECIPITATION IS 0.70 INCHES. THE AVERAGE SNOWFALL IS 12.1 INCHES.
$$