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
With the onset of April, Charlestown's average high-temperature experiences a rise, moving from March's chilly 43.3°F (6.3°C) to a refreshing 55.6°F (13.1°C). In April, Charlestown experiences a temperature dip to an average of 40.1°F (4.5°C) at night.Humidity
With an average relative humidity of 69%, April is the least humid month.Rainfall
In Charlestown, in April, it is raining for 5.9 days, with typically 0.47" (12mm) of accumulated precipitation. Throughout the year, in Charlestown, there are 47.8 rainfall days, and 4.13" (105mm) of precipitation is accumulated.Snowfall
Months with snowfall in Charlestown are January through May, November and December. In April, it is snowing for 0.6 days. Throughout April, 0.04" (1mm) of snow is accumulated. In Charlestown, during the entire year, snow falls for 13.2 days and aggregates up to 2.17" (55mm) of snow.Daylight
In April, the average length of the day in Charlestown, Massachusetts, is 13h and 24min.On the first day of the month, sunrise is at 6:25 am and sunset at 7:10 pm. On the last day of April, sunrise is at 5:39 am and sunset at 7:43 pm EDT.
Sunshine
In April, the average sunshine is 8.1h.UV index
The average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index, 3 in April, converts into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
What is the average April temperature in Charlestown?
What is the least humid month in Charlestown?
What is the average humidity in April in Charlestown?
How many days does it rain in April in Charlestown?
How many days does it snow in April in Charlestown?
How many hours of daylight does Charlestown have in April?
When is the sunrise / sunset in April in Charlestown?
How long on average sun shines in April in Charlestown?
How high is the UV index in April in Charlestown?
Average temperature in April
Charlestown, MA
- Average high temperature in April: 55.6°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (33.8°F).
- Average low temperature in April: 40.1°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in April
Charlestown, MA
- Average pressure in April: 29.97"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Charlestown, MA
- Average wind speed in April: 8.5mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in April
Charlestown, MA
- Average humidity in April: 69%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (69%).
Average rainfall in April
Charlestown, MA
- Average rainfall in April: 0.47"
The wettest month (with the highest rainfall) is November (0.55").
The driest month (with the least rainfall) is September (0.12").
Average rainfall days in April
Charlestown, MA
- Average rainfall days in April: 5.9 days
The month with the highest number of rainy days is April (5.9 days).
The months with the least rainy days are January and September (2.9 days).
Average snowfall in April
Charlestown, MA
- Average snowfall in April: 0.04"
The month with the highest snowfall is December (0.71").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in April
Charlestown, MA
- Average snowfall days in April: 0.6 days
The month with the highest number of snowfall days is January (3.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Charlestown, MA
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in April: 8h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in April
Charlestown, MA
- Average sunshine days in April: 23.3 days
The month with the most sunshine days is December (25.5 days).
The month with the least sunshine days is July (22.8 days).
Average UV index in April
Charlestown, MA
- Average UV index in April: 3
The months with the highest UV index are June, July and August (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
Charlestown, MA
- Average cloud cover in April: 46
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in April
Charlestown, MA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Charlestown, Massachusetts, USA
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