Norwalk climate

Norwalk Weather in January

NOAA 1991-2020 normals for Fullerton Muni AP, 10.1 km from Norwalk

Average highs run from 68°F on January 1 to 69°F on January 31, and lows from 46°F to 47°F. Normal precipitation for the month is 2.85 in over about 5 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 Norwalk, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

January at a glance

Average high
69°F
Average low
46°F
Precipitation
2.85 in
Record high
94°FJan 31, 2003
Record low
28°FJan 14, 2007
Chance of a freeze
3%
Daylight
9 h 57 min to 10 h 32 min
Cloud cover
46%
Humidity
61%
Dew point
37°F
Wind
7.8 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
Jan 168°F46°F84°F 201236°F 201519%
Jan 268°F46°F84°F 201237°F 201519%
Jan 368°F46°F83°F 200137°F 202219%
Jan 469°F46°F90°F 201238°F 201519%
Jan 569°F46°F86°F 200637°F 200918%
Jan 669°F46°F89°F 200635°F 200718%
Jan 769°F46°F85°F 201539°F 200018%
Jan 869°F46°F88°F 200735°F 202418%
Jan 969°F46°F86°F 200738°F 200018%
Jan 1069°F46°F82°F 200439°F 202618%
Jan 1169°F46°F83°F 200940°F 201317%
Jan 1269°F46°F89°F 200935°F 201317%
Jan 1369°F46°F86°F 200935°F 200717%
Jan 1469°F46°F88°F 200928°F 200717%
Jan 1569°F46°F93°F 202131°F 200717%
Jan 1669°F47°F88°F 201431°F 200717%
Jan 1769°F47°F90°F 202135°F 200117%
Jan 1869°F47°F84°F 201435°F 200717%
Jan 1969°F47°F84°F 200539°F 200117%
Jan 2069°F47°F85°F 201337°F 200617%
Jan 2169°F47°F86°F 201335°F 200617%
Jan 2269°F47°F84°F 201336°F 200717%
Jan 2369°F47°F83°F 202536°F 200217%
Jan 2469°F47°F85°F 201537°F 200218%
Jan 2569°F47°F86°F 200338°F 200218%
Jan 2669°F47°F87°F 200337°F 202118%
Jan 2769°F47°F83°F 201241°F 199918%
Jan 2869°F47°F89°F 201838°F 199918%
Jan 2969°F47°F89°F 201838°F 199918%
Jan 3069°F47°F86°F 200333°F 200219%
Jan 3169°F47°F94°F 200333°F 200219%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Norwalk, in percent.051015201102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (PST).

January 1
sunrise 6:58 AM, sunset 4:55 PM
January 31
sunrise 6:50 AM, sunset 5:22 PM

Every day of January: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00003166 (Fullerton Muni AP), public domain. Records: NOAA GHCN-Daily, station USW00003166, 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.