Antioch, CA weather in October
Antioch is mild and dry in October: highs average 78°F and nights drop to about 54°F. Expect about 3 wet days. A great month for outdoor plans.
- Normal high
- 78°F
- Normal low
- 54°F
- Wet days
- 3
- 0.7 in total
- Muggy days
- 0
- dew point 65°F+
How October changes from start to finish
| October 1 | October 31 | |
|---|---|---|
| Normal high | 83°F | 71°F |
| Normal low | 57°F | 51°F |
| Chance of a wet day | 6% | 13% |
| Sunrise / sunset | 7:02 am / 6:50 pm | 7:31 am / 6:09 pm |
| Daylight | 11.8 h | 10.6 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 October day
- 6 am53°Fdew point 46°F
- 9 am64°Fdew point 47°F
- Noon74°Fdew point 45°F
- 3 pm77°Fdew point 44°F
- 6 pm67°Fdew point 46°F
- 9 pm60°Fdew point 47°F
NOAA hourly normals (local standard time) from Travis AFB (19 mi away); average wind 10 mph; clear or few clouds in 75% of daytime hours, mostly cloudy or overcast in 18%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F20 of 31
- Hot dayshigh 90°F or more2 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow3 of 31
- Notable rainat least 0.10 in2 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per October, counted from daily records for each year 1991-2020.
Rain in October
Normal precipitation is 0.7 in; a dry October brings about 0.05 in and a wet one about 0.8 in (25th and 75th percentiles). Days with half an inch or more are rare.
How October varies from year to year
- Warmest October, 1991-20202020: average high 84°F
- Coolest October2000: average high 73°F
- Wettest October2009: 2.9 in
- Driest October1995: no measurable precipitation
- Highest reading99°F (October 1, 2001)
- Lowest reading37°F (October 29, 1996)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
October compared with September and November
| September | October | November | |
|---|---|---|---|
| Normal high | 87°F | 78°F | 65°F |
| Normal low | 59°F | 54°F | 46°F |
| Wet days | 1 | 3 | 6 |
| Comfortable days | 6 | 20 | 16 |
| Daylight | 12.4 h | 11.2 h | 10.1 h |
Highs change by -9°F from September and -13°F into November.
Nearby alternatives in October
- Cooler: Hayward, CA28 mi · high 72°F · 3 wet days
How Antioch ranks in October
- Normal high136th warmest of 378 cities; 40th of 60 in California
- Wet days42nd driest of 378
- Comfortable days14th most of 340
Heating and cooling
October has 58 heating degree days and 84 cooling degree days (base 65°F), 4% of the year's total heating and cooling demand.
Questions
How hot is Antioch in October?
The normal high is 78°F and the normal low is 54°F. From 1991 to 2020 the hottest October reading was 99°F (October 1, 2001).
Does it rain a lot in Antioch in October?
About 3 days in October have at least 0.01 in of precipitation, and the normal total is 0.7 in. The wettest October in 1991-2020 was in 2009 (2.9 in); the driest was in 1995, with no measurable precipitation.
Is October a good time to visit Antioch?
October ranks 3rd of 12 months on our comfort score for Antioch (73 out of 100). It has about 20 comfortable days and about 2 days at 90°F or hotter. 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.