Martinez climate

Martinez Weather in January

NOAA 1991-2020 normals for Martinez Wtp, 1.9 km from Martinez

Average highs run from 55°F on January 1 to 58°F on January 31, and lows from 34°F to 36°F. Normal precipitation for the month is 3.86 in over about 11 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 Martinez, in °F, with the record for each date.20406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

January at a glance

Average high
56°F
Average low
35°F
Precipitation
3.86 in
Record high
78°FJan 18, 2021
Record low
24°FJan 13, 2007
Chance of a freeze
95%
Daylight
9 h 35 min to 10 h 17 min
Cloud cover
60%
Humidity
84%
Dew point
42°F
Wind
6.7 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
Jan 155°F34°F66°F 201830°F 201635%
Jan 255°F34°F66°F 202028°F 202235%
Jan 355°F34°F66°F 201428°F 201335%
Jan 455°F34°F68°F 201428°F 200935%
Jan 555°F34°F68°F 201232°F 200135%
Jan 655°F34°F64°F 201531°F 201735%
Jan 755°F35°F69°F 201232°F 202435%
Jan 855°F35°F67°F 202532°F 200735%
Jan 955°F35°F73°F 202532°F 200935%
Jan 1055°F35°F65°F 201529°F 201135%
Jan 1156°F35°F68°F 202531°F 200935%
Jan 1256°F35°F74°F 200928°F 200735%
Jan 1356°F35°F70°F 200924°F 200735%
Jan 1456°F35°F68°F 202128°F 200735%
Jan 1556°F35°F71°F 200926°F 200735%
Jan 1656°F35°F75°F 202126°F 200736%
Jan 1756°F35°F76°F 202128°F 201336%
Jan 1856°F35°F78°F 202128°F 201336%
Jan 1956°F35°F69°F 201928°F 201336%
Jan 2056°F35°F69°F 202130°F 201336%
Jan 2156°F35°F70°F 201429°F 201336%
Jan 2257°F35°F72°F 201131°F 201336%
Jan 2357°F35°F69°F 202530°F 200236%
Jan 2457°F35°F71°F 201431°F 200736%
Jan 2557°F36°F73°F 201432°F 200236%
Jan 2657°F36°F68°F 201433°F 202136%
Jan 2757°F36°F69°F 201930°F 200136%
Jan 2857°F36°F69°F 201532°F 202536%
Jan 2958°F36°F69°F 202433°F 200236%
Jan 3058°F36°F70°F 201529°F 200236%
Jan 3158°F36°F77°F 201530°F 200236%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Martinez, in percent.0102030401102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (PST).

January 1
sunrise 7:25 AM, sunset 5:00 PM
January 31
sunrise 7:14 AM, sunset 5:31 PM

Every day of January: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00045378 (Martinez Wtp), public domain. Records: NOAA GHCN-Daily, station USW00023254, 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.