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
Grantham's transition into April brings a rise in the average high-temperature, moving from a wintry 37°F (2.8°C) in March to a fresh 50.9°F (10.5°C). Throughout the April nights, Grantham encounters a low-temperature of 33.4°F (0.8°C).Humidity
April is the least humid month, with an average relative humidity of 75%.Rainfall
In Grantham, in April, it is raining for 15.8 days, with typically 2.72" (69mm) of accumulated precipitation. Throughout the year, there are 153.2 rainfall days, and 29.92" (760mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Grantham, in April, snow falls for 5 days, with typically accumulated 3.5" (89mm) of snow. In Grantham, during the entire year, snow falls for 65.4 days and aggregates up to 42.72" (1085mm) of snow.Daylight
In April, the average length of the day is 13h and 27min.On the first day of April, sunrise is at 6:28 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 7:50 pm EDT.
Sunshine
In Grantham, the average sunshine in April is 7.4h.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 exposure to the Sun's UV radiation for the ordinary person.Note: In April, the maximum UV index of 3 transforms into these recommendations:
Take precautions - Protection against sunburn is recommended. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Grantham in April?
What is the least humid month?
What is the average humidity in April?
How many days does it rain in April?
How much does it snow in April?
How many hours of daylight does Grantham have in April?
What time are sunrise and sunset in April?
How long on average sun shines in April?
How high is the UV index in April?
Average temperature in April
Grantham, NH
- Average high temperature in April: 50.9°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (25.9°F).
- Average low temperature in April: 33.4°F
The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in April
Grantham, NH
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Grantham, NH
- Average wind speed in April: 7.6mph
The windiest months (with the highest average wind speed) are January, February, March and April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in April
Grantham, NH
- Average humidity in April: 75%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (75%).
Average rainfall in April
Grantham, NH
- Average rainfall in April: 2.72"
The wettest month (with the highest rainfall) is October (3.39").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in April
Grantham, NH
- Average rainfall days in April: 15.8 days
The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in April
Grantham, NH
- Average snowfall in April: 3.5"
The month with the highest snowfall is February (11.18").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Grantham, NH
- Average snowfall days in April: 5 days
The month with the highest number of snowfall days is February (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Grantham, NH
- 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: 7h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in April
Grantham, NH
- Average sunshine days in April: 11.8 days
The month with the most sunshine days is September (16.8 days).
The month with the least sunshine days is February (11.3 days).
Average UV index in April
Grantham, NH
- Average UV index in April: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in April
Grantham, NH
- Average cloud cover in April: 52
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in April
Grantham, NH
- Average visibility in April: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Grantham, New Hampshire, USA
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