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
Observing a rise in April, the average high-temperature goes from March's frosty 48°F (8.9°C) to a mild 60.4°F (15.8°C). Nightly temperatures in Grantham drop to an average low of 42.3°F (5.7°C) in April.Humidity
The least humid month is April, with an average relative humidity of 75%.Rainfall
In Grantham, Pennsylvania, in April, it is raining for 14.3 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, there are 137.7 rainfall days, and 18.43" (468mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows in Grantham, Pennsylvania. During 0.6 snowfall days, in April, Grantham aggregates 0.16" (4mm) of snow. Throughout the year, in Grantham, there are 23.7 snowfall days, and 8.62" (219mm) of snow is accumulated.Daylight
In Grantham, the average length of the day in April is 13h and 18min.On the first day of the month, sunrise is at 6:50 am and sunset at 7:32 pm. On the last day of April, in Grantham, sunrise is at 6:07 am and sunset at 8:02 pm EDT.
Sunshine
In April, the average sunshine in Grantham is 8.4h.UV index
In April, the average daily maximum UV index in Grantham is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In April, a daily UV index of 3 turns into the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Frequently asked questions
What are the temperatures in Grantham in April?
What is the least humid month in Grantham?
What is the average humidity in April 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?
When are sunrise and sunset in April in Grantham?
How many hours of sunshine does Grantham have in April?
How high is the UV index in April in Grantham?
Average temperature in April
Grantham, PA
- Average high temperature in April: 60.4°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in April: 42.3°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in April
Grantham, PA
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in April
Grantham, PA
- Average wind speed in April: 8.4mph
The windiest months (with the highest average wind speed) are February, March and April (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in April
Grantham, PA
- Average humidity in April: 75%
The months with the highest relative humidity are February and May (80%).
The month with the lowest relative humidity is April (75%).
Average rainfall in April
Grantham, PA
- Average rainfall in April: 1.46"
The wettest months (with the highest rainfall) are May and July (2.05").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in April
Grantham, PA
- Average rainfall days in April: 14.3 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in April
Grantham, PA
- Average snowfall in April: 0.16"
The month with the highest snowfall is January (2.52").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Grantham, PA
- Average snowfall days in April: 0.6 days
The month with the highest number of snowfall days is January (7.2 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, PA
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in April: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in April
Grantham, PA
- Average sunshine days in April: 13.3 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (12.2 days).
Average UV index in April
Grantham, PA
- Average UV index in April: 3
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in April
Grantham, PA
- Average cloud cover in April: 44
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in April
Grantham, PA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Grantham, Pennsylvania, USA
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