April weather forecastSlave Lake, Canada
April
Weather in April
April in Slave Lake, Canada, is a cold spring month, with an average temperature fluctuating between -2.7°C (27.1°F) and 5.6°C (42.1°F).Temperature
April's arrival coincides with a temperature rise, moving from March's freezing cold -2.3°C (27.9°F) to a cold 5.6°C (42.1°F). In Slave Lake, an average low-temperature of -2.7°C (27.1°F) is recorded during April nights.Humidity
In Slave Lake, the average relative humidity in April is 80%.Rainfall
In April, the rain falls for 13.3 days. Throughout April, 36mm (1.42") of precipitation is accumulated. In Slave Lake, during the entire year, the rain falls for 119.7 days and collects up to 409mm (16.1") of precipitation.Snowfall
January through June, September through December are months with snowfall in Slave Lake. In Slave Lake, in April, snow falls for 12.1 days, with typically accumulated 138mm (5.43") of snow. Throughout the year, in Slave Lake, there are 114.3 snowfall days, and 1073mm (42.24") of snow is accumulated.Daylight
In April, the average length of the day in Slave Lake is 14h and 12min.On the first day of April, sunrise is at 7:07 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 9:14 pm MDT.
Sunshine
The average sunshine in April is 6.3h.UV index
In Slave Lake, the average daily maximum UV index in April is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 2 during April translates into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Slave Lake, Canada
- Average high temperature in April: 5.6°C
The warmest month (with the highest average high temperature) is July (21°C).
The month with the lowest average high temperature is December (-8.5°C).
- Average low temperature in April: -2.7°C
The month with the highest average low temperature is July (9.9°C).
The coldest month (with the lowest average low temperature) is February (-15.1°C).
Average pressure in April
Slave Lake, Canada
- Average pressure in April: 1014.4mbar
The month with the highest atmospheric pressure is February (1019.9mbar).
The month with the lowest atmospheric pressure is June (1010.1mbar).
Average wind speed in April
Slave Lake, Canada
- Average wind speed in April: 11.6km/h
The windiest month (with the highest average wind speed) is October (12.2km/h).
The calmest month (with the lowest average wind speed) is July (10.5km/h).
Average humidity in April
Slave Lake, Canada
- Average humidity in April: 80%
The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is May (61%).
Average rainfall in April
Slave Lake, Canada
- Average rainfall in April: 36mm
The wettest month (with the highest rainfall) is June (71mm).
The driest month (with the least rainfall) is December (18mm).
Average rainfall days in April
Slave Lake, Canada
- Average rainfall days in April: 13.3 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in April
Slave Lake, Canada
- Average snowfall in April: 138mm
The month with the highest snowfall is March (173mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in April
Slave Lake, Canada
- Average snowfall days in April: 12.1 days
The month with the highest number of snowfall days is March (19.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in April /
Average sunshine in April
Slave Lake, Canada
- Average daylight in April: 14h and 12min
The month with the longest days is June (Average daylight: 17h and 18min).
The month with the shortest days is December (Average daylight: 7h and 12min).
- Average sunshine in April: 6h and 18min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in April
Slave Lake, Canada
- Average sunshine days in April: 8 days
The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is April (8 days).
Average UV index in April
Slave Lake, Canada
- Average UV index in April: 2
The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, October and December (UV index 1).
Average cloud cover in April
Slave Lake, Canada
- Average cloud cover in April: 60
The months with the most cloud cover are February and March (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in April
Slave Lake, Canada
- Average visibility in April: 8km
The months with the highest visibility are May, June, July, August, September and October (9km).
The months with the lowest visibility are January, February and March (6km).
