Middletown climate

Middletown Weather in January

NOAA 1991-2020 normals for Calistoga, 17.4 km from Middletown

Average highs run from 58°F on January 1 to 60°F on January 31, and lows from 38°F to 40°F. Normal precipitation for the month is 7.94 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 Middletown, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

January at a glance

Average high
59°F
Average low
39°F
Precipitation
7.94 in
Record high
82°FJan 12, 2009
Record low
20°FJan 15, 2007
Chance of a freeze
75%
Daylight
9 h 31 min to 10 h 14 min
Cloud cover
59%
Humidity
84%
Dew point
39°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 158°F38°F68°F 200724°F 201638%
Jan 258°F39°F68°F 202026°F 201338%
Jan 358°F39°F70°F 201426°F 201338%
Jan 458°F39°F69°F 201426°F 200938%
Jan 558°F39°F70°F 201223°F 201438%
Jan 658°F39°F70°F 200326°F 201738%
Jan 758°F39°F71°F 202529°F 200038%
Jan 858°F39°F70°F 202529°F 199937%
Jan 958°F39°F78°F 202527°F 201237%
Jan 1058°F39°F66°F 202525°F 201137%
Jan 1158°F39°F69°F 202528°F 199937%
Jan 1259°F39°F82°F 200925°F 200737%
Jan 1359°F39°F70°F 200921°F 200737%
Jan 1459°F39°F69°F 201422°F 200737%
Jan 1559°F39°F71°F 201420°F 200737%
Jan 1659°F39°F73°F 201422°F 200737%
Jan 1759°F40°F76°F 202121°F 201237%
Jan 1859°F40°F79°F 202124°F 200737%
Jan 1959°F40°F70°F 201126°F 200737%
Jan 2059°F40°F70°F 201427°F 201337%
Jan 2159°F40°F73°F 201426°F 201337%
Jan 2259°F40°F77°F 201128°F 201437%
Jan 2359°F40°F75°F 200627°F 200237%
Jan 2459°F40°F73°F 201426°F 200737%
Jan 2560°F40°F76°F 201429°F 202236%
Jan 2660°F40°F73°F 201424°F 202136%
Jan 2760°F40°F70°F 201227°F 200936%
Jan 2860°F40°F70°F 201528°F 200136%
Jan 2960°F40°F73°F 202428°F 199936%
Jan 3060°F40°F73°F 201526°F 200236%
Jan 3160°F40°F80°F 201526°F 200236%

Chance of rain

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

Sunrise and sunset

Times for 2026, local time (PST).

January 1
sunrise 7:29 AM, sunset 5:00 PM
January 31
sunrise 7:17 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 USC00041312 (Calistoga), public domain. Records: NOAA GHCN-Daily, station USW00023213, 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.