Allendale climate

Allendale Weather in January

NOAA 1991-2020 normals for Vacaville, 5.7 km from Allendale

Average highs run from 56°F on January 1 to 60°F on January 31, and lows from 39°F to 41°F. Normal precipitation for the month is 5.55 in over about 12 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 Allendale, in °F, with the record for each date.020406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

January at a glance

Average high
58°F
Average low
40°F
Precipitation
5.55 in
Record high
78°FJan 12, 2009
Record low
18°FJan 17, 2012
Chance of a freeze
69%
Daylight
9 h 33 min to 10 h 15 min
Cloud cover
60%
Humidity
82%
Dew point
41°F
Wind
6.9 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
Jan 156°F39°F68°F 200727°F 201538%
Jan 256°F39°F68°F 201425°F 201338%
Jan 356°F39°F66°F 201224°F 201338%
Jan 456°F39°F71°F 201427°F 200438%
Jan 556°F39°F71°F 200328°F 200138%
Jan 656°F39°F66°F 201528°F 201738%
Jan 756°F39°F69°F 201528°F 202438%
Jan 857°F39°F70°F 202530°F 199938%
Jan 957°F39°F75°F 202529°F 201138%
Jan 1057°F39°F67°F 201226°F 201138%
Jan 1157°F39°F70°F 200927°F 201338%
Jan 1257°F39°F78°F 200926°F 201338%
Jan 1357°F39°F72°F 200922°F 201338%
Jan 1457°F39°F70°F 200920°F 200738%
Jan 1557°F39°F70°F 200924°F 200738%
Jan 1657°F40°F77°F 202122°F 200738%
Jan 1758°F40°F74°F 202118°F 201238%
Jan 1858°F40°F76°F 202124°F 201238%
Jan 1958°F40°F70°F 200925°F 201338%
Jan 2058°F40°F72°F 200925°F 201338%
Jan 2158°F40°F73°F 201427°F 201338%
Jan 2258°F40°F75°F 201129°F 201338%
Jan 2358°F40°F72°F 201428°F 200438%
Jan 2459°F40°F73°F 201427°F 199938%
Jan 2559°F40°F75°F 201430°F 200738%
Jan 2659°F40°F68°F 201226°F 202138%
Jan 2759°F41°F71°F 201931°F 201338%
Jan 2859°F41°F72°F 202428°F 202538%
Jan 2960°F41°F71°F 202026°F 199937%
Jan 3060°F41°F75°F 201529°F 200237%
Jan 3160°F41°F78°F 201525°F 200237%

Chance of rain

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

Sunrise and sunset

Times for 2026, local time (PST).

January 1
sunrise 7:25 AM, sunset 4:58 PM
January 31
sunrise 7:14 AM, sunset 5:29 PM

Every day of January: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00049200 (Vacaville), public domain. Records: NOAA GHCN-Daily, station USW00093241, 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.