Antioch, CA weather in January
Expect cool weather with frequent rain in Antioch in January, with highs near 56°F and lows near 40°F. Rain falls on about 10 days. It is one of the coolest months in Antioch.
- Normal high
- 56°F
- Normal low
- 40°F
- Wet days
- 10
- 3.5 in total
- Muggy days
- 0
- dew point 65°F+
How January changes from start to finish
| January 1 | January 31 | |
|---|---|---|
| Normal high | 55°F | 58°F |
| Normal low | 40°F | 42°F |
| Chance of a wet day | 32% | 33% |
| Sunrise / sunset | 7:23 am / 4:58 pm | 7:12 am / 5:28 pm |
| Daylight | 9.6 h | 10.3 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).
A typical January day
- 6 am42°Fdew point 39°F
- 9 am45°Fdew point 41°F
- Noon53°Fdew point 43°F
- 3 pm56°Fdew point 43°F
- 6 pm49°Fdew point 43°F
- 9 pm46°Fdew point 42°F
NOAA hourly normals (local standard time) from Travis AFB (19 mi away); average wind 7 mph; clear or few clouds in 47% of daytime hours, mostly cloudy or overcast in 47%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F3 of 31
- Hot dayshigh 90°F or more0 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow10 of 31
- Notable rainat least 0.10 in7 of 31
- Freezing nightslow 32°F or below4 of 31
Average days per January, counted from daily records for each year 1991-2020.
Rain in January
Normal precipitation is 3.5 in; a dry January brings about 1.1 in and a wet one about 5.6 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more. Snow is very rare.
How January varies from year to year
- Warmest January, 1991-20202012: average high 67°F
- Coolest January1992: average high 49°F
- Wettest January1995: 10.2 in
- Driest January2015: no measurable precipitation
- Highest reading79°F (January 26, 2012)
- Lowest reading23°F (January 13, 2007)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
January compared with December and February
| December | January | February | |
|---|---|---|---|
| Normal high | 56°F | 56°F | 61°F |
| Normal low | 40°F | 40°F | 44°F |
| Wet days | 9 | 10 | 10 |
| Comfortable days | 3 | 3 | 8 |
| Daylight | 9.6 h | 9.9 h | 10.8 h |
Highs change by 0°F from December and +5°F into February.
Nearby alternatives in January
- Warmer: Salinas, CA92 mi · high 62°F · 9 wet days
- Drier: Reno, NV150 mi · high 48°F · 7 wet days
- Cooler: South Lake Tahoe, CA118 mi · high 43°F · 10 wet days
How Antioch ranks in January
- Normal high151st warmest of 378 cities; 54th of 60 in California
- Wet days220th driest of 378
- Comfortable days156th most of 339
What to pack for Antioch in January
- A warm jacket – lows near 40°F, highs near 56°F
- A rain jacket or umbrella – rain on about 10 days
Frost in January
The last spring frost typically comes around Jan 12; in 1 year in 10 it comes after Feb 1. All frost dates for Antioch.
Heating and cooling
January has 527 heating degree days and 0 cooling degree days (base 65°F), 15% of the year's total heating and cooling demand.
Questions
How cold is Antioch in January?
The normal high is 56°F and the normal low is 40°F. From 1991 to 2020 the coldest January reading was 23°F (January 13, 2007).
Does it rain a lot in Antioch in January?
About 10 days in January have at least 0.01 in of precipitation, and the normal total is 3.5 in. The wettest January in 1991-2020 was in 1995 (10.2 in); the driest was in 2015, with no measurable precipitation.
Does it snow in Antioch in January?
Snow is very rare: the 1991-2020 normal for January rounds to 0.0 in.
Is January a good time to visit Antioch?
January ranks 11th of 12 months on our comfort score for Antioch (46 out of 100). It has about 3 comfortable days. The best months are April and May.
Where the numbers come from
- Temperature and frost dates: Antioch Pumping Plt #3 (USC00040232), 3.3 mi ESE of the city center, 60 ft . NOAA normals and daily records, 1991-2020.
- Rain: Concord Wwtp (USC00041967), 14 mi W of the city center, 40 ft . NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: Fairfield (USC00042934), 23 mi NW of the city center, 40 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: Travis AFB (USW00023202), 19 mi NNW of the city center, 59 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Travis Air Force Base (745160-23202), 19 mi NNW of the city center, 62 ft . Hourly observations, 1991-2020.