Corona, CA weather in May
In May, Corona sees highs around 81°F and lows around 54°F: warm and dry. Expect about 1 wet day. Great for outdoor plans.
- Normal high
- 81°F
- Normal low
- 54°F
- Wet days
- 1
- 0.2 in total
- Daylight
- 13.9 h
How May changes from start to finish
| May 1 | May 31 | |
|---|---|---|
| Normal high | 79°F | 83°F |
| Normal low | 52°F | 56°F |
| Chance of a wet day | 6% | 3% |
| Sunrise / sunset | 6:01 am / 7:33 pm | 5:40 am / 7:55 pm |
| Daylight | 13.5 h | 14.2 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 May day
- 6 am56°Fdew point 50°F
- 9 am67°Fdew point 49°F
- Noon76°Fdew point 47°F
- 3 pm78°Fdew point 48°F
- 6 pm71°Fdew point 49°F
- 9 pm61°Fdew point 50°F
NOAA hourly normals (local standard time) from March AFB (18 mi away); average wind 6 mph; clear or few clouds in 65% of daytime hours, mostly cloudy or overcast in 26%.
What kind of days to expect
- Comfortable dayshigh 65-80°F (temperature only: no humidity station nearby)16 of 31
- Hot dayshigh 90°F or more5 of 31
- Wet daysat least 0.01 in of rain or melted snow1 of 31
- Notable rainat least 0.10 in1 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per May, counted from daily records for each year 1991-2020.
Rain in May
Normal precipitation is 0.2 in; a dry May brings about 0.0 in and a wet one about 0.3 in (25th and 75th percentiles). Days with half an inch or more are rare.
How May varies from year to year
- Warmest May, 1991-20202020: average high 88°F
- Coolest May2019: average high 73°F
- Wettest May1998: 1.5 in
- Driest May1993: no measurable precipitation
- Highest reading104°F (May 15, 2014)
- Lowest reading39°F (May 1, 2011)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
May compared with April and June
| April | May | June | |
|---|---|---|---|
| Normal high | 77°F | 81°F | 88°F |
| Normal low | 49°F | 54°F | 59°F |
| Wet days | 2 | 1 | 0 |
| Comfortable days | 17 | 16 | 7 |
| Daylight | 13.0 h | 13.9 h | 14.4 h |
Highs change by +4°F from April and +7°F into June.
Nearby alternatives in May
- Warmer: Palm Springs, CA59 mi · high 95°F · 0 wet days
- Cooler: Anaheim, CA20 mi · high 75°F · 2 wet days
How Corona ranks in May
- Normal high122nd warmest of 378 cities; 15th of 60 in California
- Wet days18th driest of 378
What to pack for Corona in May
- Layers – afternoons near 81°F but nights near 54°F
Heating and cooling
May has 30 heating degree days and 114 cooling degree days (base 65°F), 4% of the year's total heating and cooling demand.
Questions
How hot is Corona in May?
The normal high is 81°F and the normal low is 54°F. From 1991 to 2020 the hottest May reading was 104°F (May 15, 2014).
Does it rain a lot in Corona in May?
About 1 days in May have at least 0.01 in of precipitation, and the normal total is 0.2 in. The wettest May in 1991-2020 was in 1998 (1.5 in); the driest was in 1993, with no measurable precipitation.
Is May a good time to visit Corona?
May ranks 2nd of 12 months on our comfort score for Corona (74 out of 100). It has about 16 comfortable days (judged by temperature only) and about 5 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).