Asotin County climate

Asotin County Weather in October

NOAA 1991-2020 normals for Lewiston Nez Perce CO AP, 24.9 km from Asotin County

Average highs run from 72°F on October 1 to 55°F on October 31, and lows from 47°F to 38°F. Normal precipitation for the month is 1.08 in over about 9 wet days.

October day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Asotin County, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

October at a glance

Average high
63°F
Average low
42°F
Precipitation
1.08 in
Record high
89°FOct 2, 1975
Record low
15°FOct 31, 2002
Chance of a freeze
67%
Daylight
11 h 40 min to 10 h 07 min
Cloud cover
60%
Humidity
64%
Dew point
33°F
Wind
5.8 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Oct 172°F47°F88°F 200826°F 195022%0%
Oct 271°F47°F89°F 197530°F 195422%0%
Oct 371°F46°F85°F 198832°F 197322%0%
Oct 470°F46°F85°F 197033°F 197323%0%
Oct 570°F46°F85°F 197134°F 201223%0%
Oct 669°F45°F89°F 198031°F 197424%0%
Oct 768°F45°F87°F 201433°F 198524%0%
Oct 868°F45°F85°F 198427°F 198524%0%
Oct 967°F44°F87°F 200723°F 198525%0%
Oct 1066°F44°F84°F 198823°F 200925%0%
Oct 1166°F44°F83°F 198821°F 200926%0%
Oct 1265°F43°F80°F 198824°F 200926%0%
Oct 1365°F43°F79°F 197626°F 196926%0%
Oct 1464°F42°F79°F 202428°F 196927%0%
Oct 1563°F42°F82°F 196328°F 196927%0%
Oct 1663°F42°F77°F 195428°F 197127%0%
Oct 1762°F41°F78°F 200524°F 194928%
Oct 1862°F41°F76°F 195824°F 194928%
Oct 1961°F41°F78°F 202321°F 194928%
Oct 2061°F41°F78°F 202423°F 194929%
Oct 2160°F40°F83°F 200324°F 194929%
Oct 2259°F40°F80°F 200326°F 198430%
Oct 2359°F40°F77°F 194827°F 198430%
Oct 2458°F39°F77°F 200726°F 195830%
Oct 2558°F39°F75°F 199022°F 202031%
Oct 2657°F39°F75°F 198321°F 202031%
Oct 2757°F39°F74°F 198523°F 200231%
Oct 2856°F38°F75°F 200318°F 197132%
Oct 2956°F38°F72°F 198316°F 197132%
Oct 3055°F38°F68°F 195816°F 201932%
Oct 3155°F38°F72°F 196715°F 200233%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Asotin County, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

October 1
sunrise 6:48 AM, sunset 6:28 PM
October 31
sunrise 7:29 AM, sunset 5:36 PM

Every day of October: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00024149 (Lewiston Nez Perce CO AP), public domain. Records: NOAA GHCN-Daily, station USW00024149, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.