Tualatin climate

Tualatin Weather in January

NOAA 1991-2020 normals for Rex 1 S, 14.7 km from Tualatin

Average highs run from 44°F on January 1 to 47°F on January 31, and lows from 34°F to 35°F. Normal precipitation for the month is 6.38 in over about 20 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 Tualatin, in °F, with the record for each date.10203040506070151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

January at a glance

Average high
45°F
Average low
35°F
Precipitation
6.38 in
Snowfall
0.6 in
Record high
65°FJan 18, 2005
Record low
16°FJan 6, 2017
Chance of a freeze
95%
Daylight
8 h 48 min to 9 h 44 min
Cloud cover
76%
Humidity
94%
Dew point
37°F
Wind
5.6 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 144°F34°F55°F 200622°F 202265%1%
Jan 244°F34°F58°F 200323°F 201565%1%
Jan 344°F35°F62°F 202022°F 201165%1%
Jan 444°F35°F59°F 200323°F 201165%1%
Jan 544°F35°F60°F 202320°F 200465%1%
Jan 644°F35°F59°F 200216°F 201765%1%
Jan 744°F35°F61°F 200224°F 201765%1%
Jan 844°F35°F55°F 200227°F 200365%1%
Jan 945°F35°F55°F 202328°F 199865%1%
Jan 1045°F35°F58°F 201929°F 201164%1%
Jan 1145°F35°F58°F 202226°F 201364%1%
Jan 1245°F35°F59°F 202122°F 201764%1%
Jan 1345°F35°F61°F 201817°F 202464%1%
Jan 1445°F35°F59°F 201116°F 202463%1%
Jan 1545°F35°F60°F 201818°F 201763%1%
Jan 1645°F35°F57°F 201118°F 202463%1%
Jan 1746°F35°F60°F 200526°F 200163%1%
Jan 1846°F35°F65°F 200527°F 202662%1%
Jan 1946°F35°F63°F 200524°F 200962%1%
Jan 2046°F35°F59°F 200524°F 200962%1%
Jan 2146°F35°F57°F 200524°F 202661%1%
Jan 2246°F35°F58°F 201623°F 202661%1%
Jan 2346°F35°F60°F 200326°F 200861%1%
Jan 2446°F35°F62°F 201521°F 200861%1%
Jan 2547°F35°F58°F 200322°F 202660%1%
Jan 2647°F35°F60°F 200326°F 202660%1%
Jan 2747°F35°F62°F 202423°F 202560%1%
Jan 2847°F35°F65°F 202424°F 202559%1%
Jan 2947°F35°F58°F 202424°F 200759%1%
Jan 3047°F35°F59°F 200323°F 202359%1%
Jan 3147°F35°F64°F 199824°F 202359%1%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Tualatin, in percent, and of at least 0.1 inch of snowfall.0204060801102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PST).

January 1
sunrise 7:51 AM, sunset 4:39 PM
January 31
sunrise 7:33 AM, sunset 5:17 PM

Every day of January: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00357127 (Rex 1 S), public domain. Records: NOAA GHCN-Daily, station USW00094281, 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.