945
CDUS46 KOTX 202345
CLILWS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
445 PM PDT WED MAY 20 2026
...............................
..THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR MAY 20 2026
VALID AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1881 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 73 255 PM 95 2023 73 0 65
MINIMUM 49 534 AM 37 1927 49 0 49
AVERAGE 61 61 0 57
PRECIPITATION (IN)
TODAY 0.00 0.96 2020 0.05 -0.05 T
MONTH TO DATE 0.20 1.06 -0.86 0.51
SINCE OCT 1 11.26 9.41 1.85 8.78
SINCE JAN 1 7.89 5.97 1.92 5.01
SNOWFALL (IN)
TODAY MM T 1975 0.0 MM 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE MAR 1 0.0 0.8 -0.8 0.0
SINCE JUL 1 0.1 12.7 -12.6 11.6
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 4 5 -1 8
MONTH TO DATE 76 143 -67 119
SINCE MAR 1 1005 1158 -153 969
SINCE JUL 1 4131 4875 -744 4510
COOLING
TODAY 0 1 -1 0
MONTH TO DATE 14 16 -2 8
SINCE MAR 1 14 18 -4 9
SINCE JAN 1 14 18 -4 9
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION N (350)
AVERAGE WIND SPEED 3.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 74
LOWEST 31
AVERAGE 53
......................................................
THE LEWISTON ID AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 97 1928
MINIMUM TEMPERATURE (F) 50 35 1960
1971
2010
SUNRISE AND SUNSET
MAY 20 2026...........SUNRISE 509 AM PDT SUNSET 821 PM PDT
MAY 21 2026...........SUNRISE 508 AM PDT SUNSET 822 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page