Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
A rise in the average high-temperature is observed during April, moving from a cool 53.2°F (11.8°C) in March to a comfortable 62.2°F (16.8°C). Despite the hot April days, Ontario's nights see an average temperature plunge to a cold 40.3°F (4.6°C).Humidity
The average relative humidity in April in Ontario is 52%.Rainfall
In April, the rain falls for 9.7 days. Throughout April, 0.71" (18mm) of precipitation is accumulated. In Ontario, during the entire year, the rain falls for 84.9 days and collects up to 9.29" (236mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows. During 0.1 snowfall days, in April, Ontario aggregates 0.12" (3mm) of snow. In Ontario, during the entire year, snow falls for 21.8 days and aggregates up to 12.56" (319mm) of snow.Daylight
In Ontario, the average length of the day in April is 13h and 29min.On the first day of April, sunrise is at 7:27 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 8:50 pm MDT.
Sunshine
In April, the average sunshine is 9.6h.UV index
The average daily maximum UV index in April in Ontario is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A daily maximum UV index of 4 in April translates into the following instructions:
Be vigilant - A duty to shield skin and eyes from injury exists. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Frequently asked questions
What are the temperatures in Ontario in April?
What is the average humidity in April in Ontario?
How much does it rain in Ontario in April?
What is the last month it snows in Ontario?
How many hours of daylight does Ontario have in April?
When is the sunrise / sunset in April in Ontario?
How long on average sun shines in April in Ontario?
What is the UV index intensity in April in Ontario?
Average temperature in April
Ontario, OR
- Average high temperature in April: 62.2°F
The warmest month (with the highest average high temperature) is July (93.2°F).
The months with the lowest average high temperature are January and December (36.1°F).
- Average low temperature in April: 40.3°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is December (23°F).
Average pressure in April
Ontario, OR
- Average pressure in April: 30"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in April
Ontario, OR
- Average wind speed in April: 6.5mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is January (3.9mph).
Average humidity in April
Ontario, OR
- Average humidity in April: 52%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (29%).
Average rainfall in April
Ontario, OR
- Average rainfall in April: 0.71"
The wettest month (with the highest rainfall) is December (1.57").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in April
Ontario, OR
- Average rainfall days in April: 9.7 days
The month with the highest number of rainy days is March (13.3 days).
The month with the least rainy days is August (1.8 days).
Average snowfall in April
Ontario, OR
- Average snowfall in April: 0.12"
The month with the highest snowfall is December (5.35").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Ontario, OR
- Average snowfall days in April: 0.1 days
The month with the highest number of snowfall days is December (7.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Ontario, OR
- Average daylight in April: 13h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in April: 9h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in April
Ontario, OR
- Average sunshine days in April: 18.8 days
The month with the most sunshine days is July (27.7 days).
The month with the least sunshine days is February (15.2 days).
Average UV index in April
Ontario, OR
- Average UV index in April: 4
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Ontario, OR
- Average cloud cover in April: 30
The months with the most cloud cover are January and December (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in April
Ontario, OR
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Ontario, Oregon, USA
Weather forecast for your location
2. Allow the app to use your location
