Ontario, CA weather in November
November in Ontario: mild and mostly dry. Highs 75°F, lows 49°F, rain on about 4 days. A great month for outdoor plans.
- Normal high
- 75°F
- Normal low
- 49°F
- Wet days
- 4
- 0.8 in total
- Muggy days
- 0
- dew point 65°F+
How November changes from start to finish
| November 1 | November 30 | |
|---|---|---|
| Normal high | 79°F | 70°F |
| Normal low | 53°F | 45°F |
| Chance of a wet day | 10% | 15% |
| Sunrise / sunset | 6:10 am / 4:58 pm | 6:37 am / 4:41 pm |
| Daylight | 10.8 h | 10.1 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 November day
- 6 am46°Fdew point 36°F
- 9 am59°Fdew point 38°F
- Noon71°Fdew point 33°F
- 3 pm71°Fdew point 34°F
- 6 pm61°Fdew point 37°F
- 9 pm54°Fdew point 38°F
NOAA hourly normals (local standard time) from March AFB (26 mi away); average wind 5 mph; clear or few clouds in 67% of daytime hours, mostly cloudy or overcast in 25%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F18 of 30
- Hot dayshigh 90°F or more2 of 30
- Muggy daysdaily mean dew point 65°F or more0 of 30
- Wet daysat least 0.01 in of rain or melted snow4 of 30
- Notable rainat least 0.10 in2 of 30
- Freezing nightslow 32°F or below0 of 30
Average days per November, counted from daily records for each year 1991-2020.
Rain in November
Normal precipitation is 0.8 in; a dry November brings about 0.2 in and a wet one about 1.3 in (25th and 75th percentiles). Days with half an inch or more are rare.
How November varies from year to year
- Warmest November, 1991-20202008: average high 79°F
- Coolest November2004: average high 66°F
- Wettest November2019: 2.7 in
- Driest November2017: no measurable precipitation
- Highest reading98°F (November 3, 2010)
- Lowest reading32°F (November 19, 2015)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
November compared with October and December
| October | November | December | |
|---|---|---|---|
| Normal high | 83°F | 75°F | 67°F |
| Normal low | 57°F | 49°F | 44°F |
| Wet days | 2 | 4 | 6 |
| Comfortable days | 12 | 18 | 15 |
| Daylight | 11.3 h | 10.4 h | 9.9 h |
Highs change by -8°F from October and -8°F into December.
Nearby alternatives in November
- Cooler: Victorville, CA39 mi · high 67°F · 2 wet days
How Ontario ranks in November
- Normal high45th warmest of 378 cities; 9th of 60 in California
- Wet days48th driest of 378
- Comfortable days26th most of 341
What to pack for Ontario in November
- Layers – afternoons near 75°F but nights near 49°F
Heating and cooling
November has 135 heating degree days and 40 cooling degree days (base 65°F), 5% of the year's total heating and cooling demand.
Questions
How hot is Ontario in November?
The normal high is 75°F and the normal low is 49°F. From 1991 to 2020 the hottest November reading was 98°F (November 3, 2010).
Does it rain a lot in Ontario in November?
About 4 days in November have at least 0.01 in of precipitation, and the normal total is 0.8 in. The wettest November in 1991-2020 was in 2019 (2.7 in); the driest was in 2017, with no measurable precipitation.
Is November a good time to visit Ontario?
November ranks 4th of 12 months on our comfort score for Ontario (70 out of 100). It has about 18 comfortable days and about 2 days at 90°F or hotter. The best months are March, April and May.
Where the numbers come from
- Temperature, rain and frost dates: Ontario Intl Airport (USW00003102), 2.9 mi E of the city center, 949 ft (52 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: San Gabriel Canyon PH (USC00047776), 16 mi WNW of the city center, 744 ft (257 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: March AFB (USW00023119), 26 mi ESE of the city center, 1,516 ft (515 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: March Air Reserve Base (722860-23119), 26 mi ESE of the city center, 1,536 ft (535 ft higher than the city). Hourly observations, 1991-2020.