Lewiston climate

Lewiston Weather in January

NOAA 1991-2020 normals for Trinity Rvr Hatchery, 2.4 km from Lewiston

Average highs run from 48°F on January 1 to 53°F on January 31, and lows from 32°F to 33°F. Normal precipitation for the month is 5.95 in over about 15 wet days.

January day by day

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

Normal daily high and low temperature at Lewiston, in °F, with the record for each date.-20020406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

January at a glance

Average high
50°F
Average low
33°F
Precipitation
5.95 in
Snowfall
1.2 in
Record high
75°FJan 16, 1920
Record low
-7°FJan 15, 1950
Chance of a freeze
98%
Daylight
9 h 20 min to 10 h 06 min
Cloud cover
61%
Humidity
87%
Dew point
33°F
Wind
3.6 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
Jan 148°F32°F61°F 20182°F 192448%4%
Jan 248°F32°F61°F 1894-2°F 192448%4%
Jan 348°F32°F61°F 20018°F 194948%4%
Jan 448°F32°F64°F 19185°F 194948%4%
Jan 548°F32°F68°F 20147°F 194948%4%
Jan 648°F33°F67°F 19367°F 193748%4%
Jan 748°F33°F69°F 19635°F 193748%4%
Jan 849°F33°F67°F 194312°F 197448%4%
Jan 949°F33°F60°F 19320°F 193748%4%
Jan 1049°F33°F70°F 1894-1°F 194948%4%
Jan 1149°F33°F65°F 19623°F 194948%4%
Jan 1249°F33°F66°F 19205°F 194948%4%
Jan 1349°F33°F64°F 19866°F 191748%4%
Jan 1450°F33°F60°F 194310°F 191748%4%
Jan 1550°F33°F64°F 1920-7°F 195048%4%
Jan 1650°F33°F75°F 19208°F 191748%4%
Jan 1750°F33°F63°F 20116°F 191748%4%
Jan 1850°F33°F63°F 19486°F 194347%4%
Jan 1950°F33°F61°F 20090°F 193747%4%
Jan 2051°F33°F67°F 19480°F 193747%4%
Jan 2151°F33°F64°F 19921°F 193747%4%
Jan 2251°F33°F64°F 19616°F 193747%4%
Jan 2351°F33°F66°F 20146°F 193747%4%
Jan 2451°F33°F70°F 20140°F 194947%4%
Jan 2552°F33°F70°F 2015-3°F 194947%4%
Jan 2652°F33°F67°F 20147°F 195047%3%
Jan 2752°F33°F66°F 2019-4°F 195746%3%
Jan 2852°F33°F73°F 18949°F 195746%3%
Jan 2952°F33°F70°F 19205°F 195746%3%
Jan 3053°F33°F72°F 19365°F 195746%3%
Jan 3153°F33°F74°F 19202°F 195045%3%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Lewiston, in percent, and of at least 0.1 inch of snowfall.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PST).

January 1
sunrise 7:35 AM, sunset 4:55 PM
January 31
sunrise 7:22 AM, sunset 5:28 PM

Every day of January: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00049026 (Trinity Rvr Hatchery), public domain. Records: NOAA GHCN-Daily, station USC00049490, 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.