April weather forecastOntario, OH
April
Weather in April
April is a refreshing spring month in Ontario, Ohio, with temperature in the range of an average low of 40.6°F (4.8°C) and an average high of 58.3°F (14.6°C).Temperature
April's onset is marked by a temperature increase, moving from a chilly 45.9°F (7.7°C) in March to a mild 58.3°F (14.6°C). In the month of April, an average of 40.6°F (4.8°C) marks the low-temperature.Humidity
The months with the lowest humidity are April, October and November, with an average relative humidity of 78%.Rainfall
In Ontario, during April, the rain falls for 14.4 days and regularly aggregates up to 1.38" (35mm) of precipitation. In Ontario, during the entire year, the rain falls for 136.4 days and collects up to 13.15" (334mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows. During 1 snowfall days, in April, Ontario aggregates 0.16" (4mm) of snow. In Ontario, during the entire year, snow falls for 33.8 days and aggregates up to 5.12" (130mm) of snow.Daylight
In April, the average length of the day is 13h and 20min.On the first day of the month, sunrise is at 7:12 am and sunset at 7:55 pm. On the last day of April, sunrise is at 6:28 am and sunset at 8:26 pm EDT.
Sunshine
In April, the average sunshine in Ontario is 7.2h.UV index
In Ontario, the average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum UV index of 4 in April translates into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Ontario, OH
- Average high temperature in April: 58.3°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in April: 40.6°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in April
Ontario, OH
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Ontario, OH
- Average wind speed in April: 9.5mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in April
Ontario, OH
- Average humidity in April: 78%
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April, October and November (78%).
Average rainfall in April
Ontario, OH
- Average rainfall in April: 1.38"
The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is February (0.79").
Average rainfall days in April
Ontario, OH
- Average rainfall days in April: 14.4 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (6.5 days).
Average snowfall in April
Ontario, OH
- Average snowfall in April: 0.16"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Ontario, OH
- Average snowfall days in April: 1 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Ontario, OH
- Average daylight in April: 13h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in April: 7h and 12min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in April
Ontario, OH
- Average sunshine days in April: 13.4 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in April
Ontario, OH
- Average UV index in April: 4
The months with the highest UV index are June and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
Ontario, OH
- Average cloud cover in April: 49
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in April
Ontario, OH
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, July, August and September (5mi).
