Climatological Report (Daily)
Issued by NWS Spokane, WA
Issued by NWS Spokane, WA
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CDUS46 KOTX 180841
CLILWS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
141 AM PDT FRI SEP 18 2026
...................................
...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 17 2026...
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)
YESTERDAY
MAXIMUM 71 215 PM 101 1938 79 -8 88
MINIMUM 51 637 AM 28 1965 52 -1 58
AVERAGE 61 66 -5 73
PRECIPITATION (IN)
YESTERDAY 0.00 0.54 1947 0.02 -0.02 0.00
MONTH TO DATE 1.56 0.31 1.25 0.93
SINCE OCT 1 14.02 12.58 1.44 10.15
SINCE JAN 1 10.65 9.14 1.51 6.38
SNOWFALL (IN)
YESTERDAY 0.0 0.0 1998 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 4 2 2 0
MONTH TO DATE 40 25 15 4
SINCE SEP 1 40 25 15 4
SINCE JUL 1 41 36 5 4
COOLING
YESTERDAY 0 3 -3 8
MONTH TO DATE 20 80 -60 163
SINCE SEP 1 20 80 -60 163
SINCE JAN 1 894 886 8 1263
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 3.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 700 AM
LOWEST 46 500 PM
AVERAGE 66
..........................................................
THE LEWISTON ID AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 101 1938
MINIMUM TEMPERATURE (F) 52 35 1965
SUNRISE AND SUNSET
SEPTEMBER 18 2026.....SUNRISE 630 AM PDT SUNSET 653 PM PDT
SEPTEMBER 19 2026.....SUNRISE 631 AM PDT SUNSET 651 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$