Climateby Month

Corona, CA weather in July

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

Expect hot, dry weather in Corona in July, with highs near 94°F and lows near 63°F. Rain falls on about 1 day. It is one of the warmest months in Corona. Plan outdoor time for mornings and evenings.

Normal high
94°F
Normal low
63°F
Wet days
1
0.1 in total
Daylight
14.2 h

How July changes from start to finish

Normal values at the start and end of July
July 1July 31
Normal high92°F95°F
Normal low61°F64°F
Chance of a wet day2%2%
Sunrise / sunset5:43 am / 8:05 pm6:01 am / 7:51 pm
Daylight14.4 h13.8 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 July day

  1. 6 am66°Fdew point 57°F
  2. 9 am80°Fdew point 55°F
  3. Noon90°Fdew point 53°F
  4. 3 pm92°Fdew point 54°F
  5. 6 pm84°Fdew point 54°F
  6. 9 pm72°Fdew point 56°F

NOAA hourly normals (local standard time) from March AFB (18 mi away); average wind 6 mph; clear or few clouds in 81% of daytime hours, mostly cloudy or overcast in 11%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F (temperature only: no humidity station nearby)0 of 31
  • Hot dayshigh 90°F or more23 of 31
  • Wet daysat least 0.01 in of rain or melted snow1 of 31
  • Notable rainat least 0.10 in0 of 31
  • Freezing nightslow 32°F or below0 of 31

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

Rain in July

Normal precipitation is 0.1 in; a dry July brings about 0.0 in and a wet one about 0.1 in (25th and 75th percentiles). Days with half an inch or more are rare.

How July varies from year to year

  • Warmest July, 1991-20202018: average high 101°F
  • Coolest July2001: average high 89°F
  • Wettest July2015: 1.6 in
  • Driest July1993: no measurable precipitation
  • Highest reading120°F (July 6, 2018)
  • Lowest reading50°F (July 2, 2004)

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

July compared with June and August

JuneJulyAugust
Normal high88°F94°F96°F
Normal low59°F63°F63°F
Wet days010
Comfortable days700
Daylight14.4 h14.2 h13.4 h

Highs change by +6°F from June and +2°F into August.

Nearby alternatives in July

How Corona ranks in July

  • Normal high75th warmest of 378 cities; 21st of 60 in California
  • Wet days41st driest of 378

What to pack for Corona in July

  • Light, breathable clothing – highs near 94°F
  • Layers – afternoons near 94°F but nights near 63°F
  • Sunglasses and sunscreen – about 14.2 hours of daylight and highs near 94°F

Heating and cooling

July has 0 heating degree days and 412 cooling degree days (base 65°F), 13% of the year's total heating and cooling demand.

Questions

How hot is Corona in July?

The normal high is 94°F and the normal low is 63°F. From 1991 to 2020 the hottest July reading was 120°F (July 6, 2018).

Does it rain a lot in Corona in July?

About 1 days in July have at least 0.01 in of precipitation, and the normal total is 0.1 in. The wettest July in 1991-2020 was in 2015 (1.6 in); the driest was in 1993, with no measurable precipitation.

Is July a good time to visit Corona?

July ranks 11th of 12 months on our comfort score for Corona (43 out of 100). It has almost no comfortable days (judged by temperature only) and about 23 days at 90°F or hotter. The best months are March, April and May.

Where the numbers come from

  • Temperature and frost dates: Chino Airport (USW00003179), 8.0 mi NNW of the city center, 650 ft . NOAA normals and daily records, 1991-2020.
  • Rain, snowfall and snow depth: Riverside Fire Stn 3 (USC00047470), 12 mi ENE of the city center, 840 ft (162 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour and cloud cover: March AFB (USW00023119), 18 mi E of the city center, 1,516 ft (838 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Not available for this location: daily humidity and wind (no station close enough or similar enough in elevation).