April weather forecastSudbury, Canada
April
Weather in April
April signals a marked shift in Sudbury's weather as the snowfall drastically drops from 134mm (5.28") to 87mm (3.43"), indicative of the snow season's close. Sudbury residents breathe a sigh of relief as the sun shines brighter, extending daylight hours to 13.6. Meanwhile, April often witnesses the first stirring of spring blooms, adding color to the previously snow-covered city. As temperatures rise, outdoor enthusiasts in Sudbury finally have the opportunity to embrace warmer activities. The onset of rainfalls paves the way for increased greenery and blossoming scenery around the city.Temperature
The shift into April is characterized by a rise in the average high-temperature, transitioning from March's freezing cold -0.8°C (30.6°F) to a chilly 6.6°C (43.9°F). Sudbury experiences an average low-temperature of -2°C (28.4°F) in the month of April.Humidity
In April, the average relative humidity in Sudbury is 80%.Rainfall
In Sudbury, in April, during 9.9 rainfall days, 53mm (2.09") of precipitation is typically accumulated. In Sudbury, during the entire year, the rain falls for 108.1 days and collects up to 474mm (18.66") of precipitation.Snowfall
January through May, October through December are months with snowfall in Sudbury. In Sudbury, during April, snow falls for 7.4 days and regularly aggregates up to 87mm (3.43") of snow. In Sudbury, during the entire year, snow falls for 86.7 days and aggregates up to 865mm (34.06") of snow.Daylight
In Sudbury, the average length of the day in April is 13h and 37min.On the first day of the month, sunrise is at 7:01 am and sunset at 7:53 pm. On the last day of April, sunrise is at 6:09 am and sunset at 8:32 pm EDT.
Sunshine
In April, the average sunshine is 5.9h.UV index
The average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In April, the maximum UV index of 3 suggests these recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. During bright days, sunglasses that offer UVA and UVB defense are recommended. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Sudbury, Canada
- Average high temperature in April: 6.6°C
The warmest month (with the highest average high temperature) is July (24.5°C).
The month with the lowest average high temperature is January (-8°C).
- Average low temperature in April: -2°C
The month with the highest average low temperature is July (12.7°C).
The coldest month (with the lowest average low temperature) is January (-15.9°C).
Average pressure in April
Sudbury, Canada
- Average pressure in April: 1015.1mbar
The month with the highest atmospheric pressure is March (1018.8mbar).
The month with the lowest atmospheric pressure is June (1012.8mbar).
Average wind speed in April
Sudbury, Canada
- Average wind speed in April: 12.5km/h
The windiest month (with the highest average wind speed) is February (12.6km/h).
The calmest months (with the lowest average wind speed) are June and August (10.1km/h).
Average humidity in April
Sudbury, Canada
- Average humidity in April: 80%
The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is May (68%).
Average rainfall in April
Sudbury, Canada
- Average rainfall in April: 53mm
The wettest month (with the highest rainfall) is October (65mm).
The driest months (with the least rainfall) are February and December (27mm).
Average rainfall days in April
Sudbury, Canada
- Average rainfall days in April: 9.9 days
The month with the highest number of rainy days is October (13.7 days).
The month with the least rainy days is January (2.4 days).
Average snowfall in April
Sudbury, Canada
- Average snowfall in April: 87mm
The month with the highest snowfall is January (179mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in April
Sudbury, Canada
- Average snowfall days in April: 7.4 days
The month with the highest number of snowfall days is January (18.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Sudbury, Canada
- Average daylight in April: 13h and 36min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in April: 5h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 2h and 0min).
Average sunshine days in April
Sudbury, Canada
- Average sunshine days in April: 13.9 days
The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is February (12.7 days).
Average UV index in April
Sudbury, Canada
- Average UV index in April: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in April
Sudbury, Canada
- Average cloud cover in April: 59
The month with the most cloud cover is January (Cloud cover 79).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in April
Sudbury, Canada
- Average visibility in April: 8km
The months with the highest visibility are May, June and July (9km).
The month with the lowest visibility is January (6km).





