Ontario Weather in April
Average highs run from 55°F on April 1 to 68°F on April 30, and lows from 33°F to 44°F. Normal precipitation for the month is 3.94 in over about 13 wet days.
April day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
April at a glance
- Average high
- 62°F
- Average low
- 38°F
- Precipitation
- 3.94 in
- Snowfall
- 1.9 in
- Record high
- 86°FApr 27, 1986
- Record low
- 8°FApr 7, 1982
- Chance of a freeze
- 99%
- Daylight
- 12 h 41 min to 13 h 56 min
- Cloud cover
- 78%
- Humidity
- 77%
- Dew point
- 41°F
- Wind
- 11.6 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Apr 1 | 55°F | 33°F | 79°F 2010 | 11°F 1964 | 42% | 12% |
| Apr 2 | 55°F | 33°F | 83°F 2010 | 19°F 2013 | 42% | 12% |
| Apr 3 | 56°F | 34°F | 79°F 2007 | 17°F 1965 | 42% | 11% |
| Apr 4 | 56°F | 34°F | 78°F 2026 | 17°F 1964 | 42% | 11% |
| Apr 5 | 57°F | 34°F | 79°F 1988 | 13°F 1995 | 42% | 10% |
| Apr 6 | 57°F | 35°F | 83°F 2010 | 15°F 1982 | 42% | 10% |
| Apr 7 | 58°F | 35°F | 82°F 2021 | 8°F 1982 | 42% | 9% |
| Apr 8 | 58°F | 35°F | 81°F 2021 | 15°F 1972 | 42% | 9% |
| Apr 9 | 59°F | 36°F | 81°F 2013 | 16°F 1972 | 42% | 9% |
| Apr 10 | 59°F | 36°F | 82°F 2011 | 16°F 2016 | 42% | 8% |
| Apr 11 | 60°F | 36°F | 79°F 1977 | 21°F 1976 | 42% | 8% |
| Apr 12 | 60°F | 37°F | 79°F 1977 | 19°F 1976 | 43% | 7% |
| Apr 13 | 61°F | 37°F | 80°F 2026 | 16°F 1950 | 43% | 7% |
| Apr 14 | 61°F | 38°F | 84°F 2023 | 16°F 1950 | 43% | 7% |
| Apr 15 | 62°F | 38°F | 82°F 2010 | 23°F 1962 | 43% | 6% |
| Apr 16 | 62°F | 38°F | 84°F 2002 | 20°F 2014 | 43% | 6% |
| Apr 17 | 63°F | 39°F | 83°F 1969 | 25°F 1962 | 43% | 6% |
| Apr 18 | 63°F | 39°F | 82°F 1976 | 23°F 1990 | 43% | 5% |
| Apr 19 | 64°F | 40°F | 83°F 2002 | 25°F 1953 | 43% | 5% |
| Apr 20 | 64°F | 40°F | 83°F 2023 | 26°F 1997 | 44% | 5% |
| Apr 21 | 64°F | 40°F | 84°F 1985 | 25°F 1981 | 44% | 4% |
| Apr 22 | 65°F | 41°F | 84°F 1985 | 27°F 1978 | 44% | 4% |
| Apr 23 | 65°F | 41°F | 84°F 1985 | 24°F 1986 | 44% | 4% |
| Apr 24 | 66°F | 42°F | 85°F 1960 | 25°F 2015 | 44% | 3% |
| Apr 25 | 66°F | 42°F | 85°F 1990 | 27°F 2024 | 44% | 3% |
| Apr 26 | 66°F | 42°F | 85°F 2009 | 25°F 2006 | 44% | 3% |
| Apr 27 | 67°F | 43°F | 86°F 1986 | 26°F 1971 | 44% | 3% |
| Apr 28 | 67°F | 43°F | 83°F 1986 | 25°F 2004 | 44% | 2% |
| Apr 29 | 67°F | 43°F | 82°F 2024 | 24°F 1977 | 44% | 2% |
| Apr 30 | 68°F | 44°F | 83°F 1970 | 29°F 2008 | 44% | 2% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- April 1
- sunrise 7:14 AM, sunset 7:55 PM
- April 30
- sunrise 6:30 AM, sunset 8:26 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00334874 (Mansfield 5 W), public domain. Records: NOAA GHCN-Daily, station USW00014891, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.