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
As Blackburn welcomes April, the average high-temperature displays a subtle shift, adjusting from a chilly 8.5°C (47.3°F) in March to a fresh 11.9°C (53.4°F). Blackburn temperatures generally rest at a low of 3.9°C (39°F) during the April nights.Humidity
The months with the lowest humidity in Blackburn are April and May, with an average relative humidity of 82%.Rainfall
April is the month with the least rainfall in Blackburn. Rain falls for 14.4 days and accumulates 21mm (0.83") of precipitation.Snowfall
January through April, November and December are months with snowfall in Blackburn. April is the last month it regularly snows. During 0.3 snowfall days, in April, Blackburn aggregates 3mm (0.12") of snow. In Blackburn, United Kingdom, during the entire year, snow falls for 16.1 days and aggregates up to 140mm (5.51") of snow.Daylight
In April, the average length of the day in Blackburn is 14h and 4min.On the first day of the month, sunrise is at 6:41 am and sunset at 7:46 pm. On the last day of April, sunrise is at 5:34 am and sunset at 8:39 pm BST.
Sunshine
With an average of 7.1h of sunshine, April has the most sunshine of the year in Blackburn.UV index
The average daily maximum UV index in April in Blackburn, United Kingdom, is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: In April, a regular UV index of 3 translates into these guidelines:
Take precautions. Light skin individuals may get burned in less than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
What are April temperatures in Blackburn?
What is the least humid month in Blackburn?
What is the average humidity in April in Blackburn?
What is the driest month in Blackburn?
How much does it rain in Blackburn in April?
What is the last month it snows in Blackburn?
How many hours of daylight does Blackburn have in April?
When are sunrise and sunset in April in Blackburn?
What month has the most sunshine in Blackburn?
How many hours of sunshine does Blackburn have in April?
What is the UV index reading in April in Blackburn?
Average temperature in April
Blackburn, United Kingdom
- Average high temperature in April: 11.9°C
The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (5.4°C).
- Average low temperature in April: 3.9°C
The month with the highest average low temperature is August (11.3°C).
The coldest months (with the lowest average low temperature) are January and February (1.3°C).
Average pressure in April
Blackburn, United Kingdom
- Average pressure in April: 1015.2mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.8mbar).
Average wind speed in April
Blackburn, United Kingdom
- Average wind speed in April: 14.7km/h
The windiest month (with the highest average wind speed) is February (18km/h).
The calmest months (with the lowest average wind speed) are June and July (12.5km/h).
Average humidity in April
Blackburn, United Kingdom
- Average humidity in April: 82%
The months with the highest relative humidity are January and December (90%).
The months with the lowest relative humidity are April and May (82%).
Average rainfall in April
Blackburn, United Kingdom
- Average rainfall in April: 21mm
The wettest months (with the highest rainfall) are August and December (66mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days in April
Blackburn, United Kingdom
- Average rainfall days in April: 14.4 days
The month with the highest number of rainy days is August (21.4 days).
The month with the least rainy days is February (14.3 days).
Average snowfall in April
Blackburn, United Kingdom
- Average snowfall in April: 3mm
The month with the highest snowfall is January (39mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in April
Blackburn, United Kingdom
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is January (5.2 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
Blackburn, United Kingdom
- Average daylight in April: 14h and 1min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in April: 7h and 1min
The month with the most sunshine is April (Average sunshine: 7h and 6min).
The months with the least sunshine are January and February (Average sunshine: 3h and 24min).
Average sunshine days in April
Blackburn, United Kingdom
- Average sunshine days in April: 12 days
The month with the most sunshine days is April (12 days).
The month with the least sunshine days is August (5.4 days).
Average UV index in April
Blackburn, United Kingdom
- Average UV index in April: 3
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, November and December (UV index 2).
Average cloud cover in April
Blackburn, United Kingdom
- Average cloud cover in April: 53
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are April and May (Cloud cover 53).
Average visibility in April
Blackburn, United Kingdom
- Average visibility in April: 9km
The months with the highest visibility are February, March, April, May, June and October (9km).
The months with the lowest visibility are January, July, August, September, November and December (8km).
Blackburn, United Kingdom
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