Climate averages 1991–2020
Corona weather
in March.
A mild, moderately wet month: the 9th warmest and the 10th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
March is a mild month in Corona: daytime highs average 20.3°C and nights cool to about 8.5°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 68 mm of rain on roughly 7 days, which makes March a moderately wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 57 min on an average March day.
The nearest other city in this atlas is Riverside (18 km away). In March its highs average 19.8°C, 0.5°C cooler than Corona, with 68 mm of rain.
Among the 498 cities listed in the United States, Corona ranks joint 96th of 498 for the warmest March highs and joint 210th of 498 for the driest March (rainfall, lowest first). The mean March high of those 498 cities is 14.9°C; Corona is 5.4°C warmer than that mean.
From March to April, average highs rise by 2.3°C to 22.7°C, and monthly rainfall falls from 68 mm to 32 mm.
The annual picture
March in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Corona climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 18.3°C5.8°C | 5.8°C | 96 | 6.6 | 10.210 h |
| February | 18.6°C6.6°C | 6.6°C | 111 | 7.4 | 10.911 h |
| March, selected | 20.3°C8.5°C | 8.5°C | 68 | 6.8 | 12.012 h |
| April | 22.7°C10.4°C | 10.4°C | 32 | 4.6 | 13.013 h |
| May | 25.1°C13.1°C | 13.1°C | 15 | 2.6 | 13.914 h |
| June | 28.7°C15.6°C | 15.6°C | 3.4 | 0.5 | 14.414 h |
| July | 32.0°C18.5°C | 18.5°C | 2.2 | 0.5 | 14.214 h |
| August | 33.2°C19.3°C | 19.3°C | 1.1 | 0.3 | 13.413 h |
| September | 31.6°C17.8°C | 17.8°C | 5.5 | 1.2 | 12.412 h |
| October | 27.0°C13.7°C | 13.7°C | 22 | 3.1 | 11.411 h |
| November | 22.3°C9.1°C | 9.1°C | 30 | 3.5 | 10.410 h |
| December | 18.0°C5.6°C | 5.6°C | 67 | 5.8 | 9.910 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
March in nearby cities
- Riverside in MarchUnited States · 18 kmHigh 19.8°C · Low 7.5°C · 68 mm rain
- Chino in MarchUnited States · 19 kmHigh 19.5°C · Low 8.0°C · 62 mm rain
- Chino Hills in MarchUnited States · 22 kmHigh 19.1°C · Low 7.8°C · 62 mm rain
- Ontario in MarchUnited States · 22 kmHigh 19.7°C · Low 8.2°C · 62 mm rain
- Rancho Cucamonga in MarchUnited States · 26 kmHigh 19.5°C · Low 7.7°C · 68 mm rain
- Pomona in MarchUnited States · 26 kmHigh 19.7°C · Low 8.2°C · 62 mm rain
- Fontana in MarchUnited States · 27 kmHigh 19.3°C · Low 6.9°C · 68 mm rain
- Santa Ana, United States in MarchUnited States · 31 kmHigh 18.3°C · Low 10.1°C · 56 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Corona) is explained once on the Corona year overview and on the Sources, method and limits page.
Riverside, Fontana and Rancho Cucamonga lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.