839
CDUS45 KRIW 200730
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
130 AM MDT WED MAY 20 2026
...............................
..THE LANDER WY CLIMATE SUMMARY FOR MAY 19 2026
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)
YESTERDAY
MAXIMUM 54 5:37 PM 88 1954 67 -13 55
MINIMUM 26 5:27 AM 24 1950 41 -15 37
AVERAGE 40 54 -14
PRECIPITATION (IN)
YESTERDAY 0.00 2.52 2011 0.09 -0.09 0.27
MONTH TO DATE 1.41 1.70 -0.29 1.79
SINCE MAR 1 3.80 5.06 -1.26 7.39
SINCE JAN 1 4.21 6.27 -2.06 8.47
SNOWFALL (IN)
YESTERDAY 0.0 6.0 2011 0.1 -0.1 0.0
MONTH TO DATE 12.5 3.8 8.7 3.4
SINCE MAR 1 29.9 34.6 -4.7 48.7
SINCE JUL 1 38.1 86.8 -48.7 79.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 25 11 14 19
MONTH TO DATE 232 276 -44 232
SINCE MAR 1 1354 1827 -473 1691
SINCE JUL 1 5437 7478 -2041 6720
COOLING
YESTERDAY 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 S (170)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 5.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 85 2:00 AM
LOWEST 27 4:00 PM
AVERAGE 56
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THE LANDER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 91 1954
MINIMUM TEMPERATURE (F) 41 26 1950
SUNRISE AND SUNSET
MAY 20 2026...........SUNRISE 5:47 AM MDT SUNSET 8:36 PM MDT
MAY 21 2026...........SUNRISE 5:46 AM MDT SUNSET 8:37 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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