Climateby Month

Ontario, CA weather in February

NOAA 1991-2020 normals and daily records · Ontario all year

February in Ontario: mild, with some rain. Highs 68°F, lows 46°F, about 6 wet days. A good month for most outdoor plans.

Normal high
68°F
Normal low
46°F
Wet days
6
3.1 in total
Muggy days
0
dew point 65°F+

How February changes from start to finish

Normal values at the start and end of February
February 1February 28
Normal high68°F70°F
Normal low45°F48°F
Chance of a wet day20%23%
Sunrise / sunset6:47 am / 5:20 pm6:20 am / 5:45 pm
Daylight10.6 h11.4 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 February day

  1. 6 am43°Fdew point 37°F
  2. 9 am53°Fdew point 39°F
  3. Noon63°Fdew point 36°F
  4. 3 pm65°Fdew point 36°F
  5. 6 pm57°Fdew point 38°F
  6. 9 pm51°Fdew point 39°F

NOAA hourly normals (local standard time) from March AFB (26 mi away); average wind 5 mph; clear or few clouds in 52% of daytime hours, mostly cloudy or overcast in 41%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F13 of 28
  • Hot dayshigh 90°F or more0 of 28
  • Muggy daysdaily mean dew point 65°F or more0 of 28
  • Wet daysat least 0.01 in of rain or melted snow6 of 28
  • Notable rainat least 0.10 in5 of 28
  • Freezing nightslow 32°F or below0 of 28

Average days per February, counted from daily records for each year 1991-2020.

Rain in February

Normal precipitation is 3.1 in; a dry February brings about 0.9 in and a wet one about 4.6 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.

How February varies from year to year

  • Warmest February, 1991-20202016: average high 79°F
  • Coolest February2001: average high 60°F
  • Wettest February2005: 7.8 in
  • Driest February2020: 0.09 in
  • Highest reading90°F (February 16, 2016)
  • Lowest reading29°F (February 20, 2018)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

February compared with January and March

JanuaryFebruaryMarch
Normal high68°F68°F72°F
Normal low45°F46°F49°F
Wet days565
Comfortable days161317
Daylight10.2 h11.0 h12.0 h

Highs change by 0°F from January and +4°F into March.

Nearby alternatives in February

How Ontario ranks in February

  • Normal high57th warmest of 378 cities; 14th of 60 in California
  • Wet days69th driest of 378
  • Comfortable days49th most of 340

Heating and cooling

February has 228 heating degree days and 8 cooling degree days (base 65°F), 7% of the year's total heating and cooling demand.

Questions

How cold is Ontario in February?

The normal high is 68°F and the normal low is 46°F. From 1991 to 2020 the coldest February reading was 29°F (February 20, 2018).

Does it rain a lot in Ontario in February?

About 6 days in February have at least 0.01 in of precipitation, and the normal total is 3.1 in. The wettest February in 1991-2020 was in 2005 (7.8 in); the driest was in 2020 (0.09 in).

Is February a good time to visit Ontario?

February ranks 6th of 12 months on our comfort score for Ontario (64 out of 100). It has about 13 comfortable days. 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.