Potrero climate

Potrero Weather in January

NOAA 1991-2020 normals for Campo, 13.6 km from Potrero

Average highs run from 63°F on January 1 to 64°F on January 31, and lows from 34°F to 35°F. Normal precipitation for the month is 3.09 in over about 7 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 Potrero, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

January at a glance

Average high
64°F
Average low
35°F
Precipitation
3.09 in
Snowfall
0.1 in
Record high
90°FJan 6, 2006
Record low
27°FJan 14, 2007
Chance of a freeze
100%
Daylight
10 h 03 min to 10 h 37 min
Cloud cover
41%
Humidity
57%
Dew point
31°F
Wind
7.4 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 163°F34°F77°F 201234°F 201924%0%
Jan 263°F34°F77°F 199930°F 201924%0%
Jan 363°F34°F83°F 200334°F 201324%0%
Jan 463°F34°F87°F 201235°F 201923%0%
Jan 563°F34°F85°F 200635°F 200923%0%
Jan 663°F34°F90°F 200632°F 200723%0%
Jan 763°F35°F80°F 200335°F 199923%0%
Jan 864°F35°F80°F 200733°F 200023%0%
Jan 964°F35°F85°F 200733°F 202423%0%
Jan 1064°F35°F79°F 201036°F 202623%0%
Jan 1164°F35°F80°F 202238°F 201323%0%
Jan 1264°F35°F83°F 200934°F 201323%0%
Jan 1364°F35°F86°F 201833°F 201322%0%
Jan 1464°F35°F87°F 202127°F 200722%0%
Jan 1564°F35°F88°F 201428°F 200722%0%
Jan 1664°F35°F84°F 200334°F 201322%0%
Jan 1764°F35°F86°F 201130°F 200722%0%
Jan 1864°F35°F82°F 200533°F 200722%0%
Jan 1964°F35°F83°F 200535°F 200222%0%
Jan 2064°F35°F81°F 200936°F 200222%0%
Jan 2164°F35°F81°F 201435°F 202322%0%
Jan 2264°F35°F83°F 201334°F 200722%0%
Jan 2364°F35°F85°F 202537°F 200722%0%
Jan 2464°F35°F79°F 201832°F 200222%0%
Jan 2564°F35°F80°F 200338°F 200222%0%
Jan 2664°F35°F87°F 200334°F 200222%0%
Jan 2764°F35°F82°F 200335°F 202322%0%
Jan 2864°F35°F85°F 201834°F 200922%0%
Jan 2964°F35°F88°F 201836°F 199922%0%
Jan 3064°F35°F84°F 201832°F 200223%0%
Jan 3164°F35°F89°F 200332°F 200223%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Potrero, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PST).

January 1
sunrise 6:49 AM, sunset 4:52 PM
January 31
sunrise 6:42 AM, sunset 5:19 PM

Every day of January: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00041424 (Campo), public domain. Records: NOAA GHCN-Daily, station USW00003178, 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.