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
The onset of April introduces a subtle rise in the average high-temperature, nudging from a frosty 9.8°C (49.6°F) in March to a mild 13°C (55.4°F). The month of April records an average low-temperature of 4.2°C (39.6°F) in Grantham.Humidity
The average relative humidity in April in Grantham, United Kingdom, is 82%.Rainfall
March and April are months with the least rain in Grantham when the rain falls for 13.3 days and typically aggregates up to 15mm (0.59") of rain.Snowfall
Months with snowfall in Grantham are January through April, November and December. April is the last month it regularly snows in Grantham. During 0.3 snowfall days, in April, Grantham aggregates 1mm (0.04") of snow. Throughout the year, there are 8.8 snowfall days, and 42mm (1.65") of snow is accumulated.Daylight
The average length of the day in April in Grantham is 14h and 0min.On the first day of April in Grantham, sunrise is at 6:34 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 5:30 am and sunset at 8:29 pm BST.
Sunshine
The average sunshine in April in Grantham is 7.2h.UV index
The average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 3 during April translates into these guidelines:
Adopt protective measures - It is advised to guard against sun damage. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
What are April temperatures in Grantham?
What is the average humidity in April in Grantham?
What is the driest month in Grantham?
How much does it rain in Grantham in April?
What is the last month it snows in Grantham?
What is the average length of the day in April in Grantham?
What time are sunrise and sunset in April in Grantham?
How many hours of sunshine does Grantham have in April?
What is the UV index intensity in April in Grantham?
Average temperature in April
Grantham, United Kingdom
- Average high temperature in April: 13°C
The warmest month (with the highest average high temperature) is July (20.7°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in April: 4.2°C
The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is January (1.6°C).
Average pressure in April
Grantham, United Kingdom
- Average pressure in April: 1015.6mbar
The month with the highest atmospheric pressure is May (1016.4mbar).
The month with the lowest atmospheric pressure is November (1009.7mbar).
Average wind speed in April
Grantham, United Kingdom
- Average wind speed in April: 14.1km/h
The windiest month (with the highest average wind speed) is December (18.5km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).
Average humidity in April
Grantham, United Kingdom
- Average humidity in April: 82%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (77%).
Average rainfall in April
Grantham, United Kingdom
- Average rainfall in April: 15mm
The wettest month (with the highest rainfall) is June (37mm).
The driest months (with the least rainfall) are March and April (15mm).
Average rainfall days in April
Grantham, United Kingdom
- Average rainfall days in April: 13.3 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in April
Grantham, United Kingdom
- Average snowfall in April: 1mm
The month with the highest snowfall is January (17mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in April
Grantham, United Kingdom
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is February (3.1 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
Grantham, United Kingdom
- Average daylight in April: 14h and 0min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in April: 7h and 1min
The months with the most sunshine are July and August (Average sunshine: 7h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in April
Grantham, United Kingdom
- Average sunshine days in April: 12.7 days
The months with the most sunshine days are October and December (15.9 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in April
Grantham, United Kingdom
- Average UV index in April: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Grantham, United Kingdom
- Average cloud cover in April: 52
The month with the most cloud cover is November (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 49).
Average visibility in April
Grantham, United Kingdom
- Average visibility in April: 9km
The months with the highest visibility are January, February, March, April, May, July, August, September, October and December (9km).
The months with the lowest visibility are June and November (8km).
Grantham, United Kingdom
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