Corona, CA weather in January
In January, Corona sees highs around 70°F and lows around 42°F: mild and mostly dry. Expect about 5 wet days. It is one of the coolest months in Corona. Good for outdoor plans.
- Normal high
- 70°F
- Normal low
- 42°F
- Wet days
- 5
- 2.2 in total
- Daylight
- 10.2 h
How January changes from start to finish
| January 1 | January 31 | |
|---|---|---|
| Normal high | 69°F | 70°F |
| Normal low | 41°F | 42°F |
| Chance of a wet day | 17% | 17% |
| Sunrise / sunset | 6:55 am / 4:52 pm | 6:47 am / 5:19 pm |
| Daylight | 9.9 h | 10.5 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 January day
- 6 am43°Fdew point 34°F
- 9 am51°Fdew point 36°F
- Noon63°Fdew point 34°F
- 3 pm65°Fdew point 33°F
- 6 pm56°Fdew point 36°F
- 9 pm50°Fdew point 36°F
NOAA hourly normals (local standard time) from March AFB (18 mi away); average wind 5 mph; clear or few clouds in 58% of daytime hours, mostly cloudy or overcast in 35%.
What kind of days to expect
- Comfortable dayshigh 65-80°F (temperature only: no humidity station nearby)17 of 31
- Hot dayshigh 90°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow5 of 31
- Notable rainat least 0.10 in4 of 31
- Freezing nightslow 32°F or below3 of 31
Average days per January, counted from daily records for each year 1991-2020.
Rain in January
Normal precipitation is 2.2 in; a dry January brings about 0.3 in and a wet one about 3.4 in (25th and 75th percentiles). About 1 day brings half an inch or more, and about 1 an inch or more. Snow is very rare.
How January varies from year to year
- Warmest January, 1991-20202014: average high 77°F
- Coolest January2001: average high 63°F
- Wettest January1993: 9.1 in
- Driest January2003: no measurable precipitation
- Highest reading92°F (January 31, 2003)
- Lowest reading20°F (January 14, 2007)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
January compared with December and February
| December | January | February | |
|---|---|---|---|
| Normal high | 69°F | 70°F | 70°F |
| Normal low | 40°F | 42°F | 43°F |
| Wet days | 4 | 5 | 6 |
| Comfortable days | 17 | 17 | 13 |
| Daylight | 9.9 h | 10.2 h | 11.0 h |
Highs change by +1°F from December and 0°F into February.
Nearby alternatives in January
- Cooler: Big Bear Lake, CA45 mi · high 46°F · 7 wet days
How Corona ranks in January
- Normal high28th warmest of 378 cities; 3rd of 60 in California
- Wet days46th driest of 378
What to pack for Corona in January
- Layers – afternoons near 70°F but nights near 42°F
Frost in January
The last spring frost typically comes around Jan 17; in 1 year in 10 it comes after Feb 22. All frost dates for Corona.
Heating and cooling
January has 295 heating degree days and 4 cooling degree days (base 65°F), 9% of the year's total heating and cooling demand.
Questions
How hot is Corona in January?
The normal high is 70°F and the normal low is 42°F. From 1991 to 2020 the hottest January reading was 92°F (January 31, 2003).
Does it rain a lot in Corona in January?
About 5 days in January have at least 0.01 in of precipitation, and the normal total is 2.2 in. The wettest January in 1991-2020 was in 1993 (9.1 in); the driest was in 2003, with no measurable precipitation.
Is January a good time to visit Corona?
January ranks 5th of 12 months on our comfort score for Corona (67 out of 100). It has about 17 comfortable days (judged by temperature only). 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).