Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 190046
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
646 PM MDT MON MAY 18 2026
...................................
...THE LANDER WY CLIMATE SUMMARY FOR MAY 18 2026...
VALID TODAY AS OF 0600 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1891 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 37 4:27 PM 86 1901 67 -30 64
2006
2020
MINIMUM 29 7:39 AM 22 1896 40 -11 43
AVERAGE 33 54 -21 54
PRECIPITATION (IN)
TODAY 0.58 1.38 2017 0.09 0.49 0.18
MONTH TO DATE 1.41 1.61 -0.20 1.52
SINCE MAR 1 3.80 4.97 -1.17 7.12
SINCE JAN 1 4.21 6.18 -1.97 8.20
SNOWFALL (IN)
TODAY MM 0.1 MM 0.0
MONTH TO DATE 4.6 3.7 0.9 3.4
SINCE MAR 1 22.0 34.5 -12.5 48.7
SINCE JUL 1 30.2 86.7 -56.5 79.0
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 32 12 20 11
MONTH TO DATE 207 265 -58 213
SINCE MAR 1 1329 1816 -487 1672
SINCE JUL 1 5412 7467 -2055 6701
COOLING
TODAY 0 0 0 0
MONTH TO DATE 2 0 2 4
SINCE MAR 1 3 0 3 4
SINCE JAN 1 3 0 3 4
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 9.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HEAVY SNOW
SNOW
LIGHT SNOW
FOG
FOG W/VISIBILITY <= 1/4 MILE
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100
LOWEST 70
AVERAGE 85
..........................................................
THE LANDER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 88 1954
MINIMUM TEMPERATURE (F) 41 24 1950
SUNRISE AND SUNSET
MAY 18 2026...........SUNRISE 5:49 AM MDT SUNSET 8:34 PM MDT
MAY 19 2026...........SUNRISE 5:48 AM MDT SUNSET 8:35 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$