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 sea temperature 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 shift into April in Jamestown is marked by a rise in the average high-temperature, moving from March's frosty 43.5°F (6.4°C) to a fresh 53.2°F (11.8°C). Throughout the month of April, Jamestown sees a steady low-temperature average of 42.1°F (5.6°C).Humidity
The average relative humidity in April is 74%.Rainfall
In April, in Jamestown, the rain falls for 15.6 days. Throughout April, 2.95" (75mm) of precipitation is accumulated. In Jamestown, Rhode Island, during the entire year, the rain falls for 148.1 days and collects up to 29.65" (753mm) of precipitation.Snowfall
April, June through October are months without snowfall in Jamestown, Rhode Island.Ocean temperature
In Jamestown, in April, the average water temperature is 44.4°F (6.9°C).Note: Swimming in 44.4°F (6.9°C) at temperatures under 50°F (10°C) requires thermal swimsuits; otherwise, one can face cold shock and breathing difficulty. Even brief immersion at 55.4°F (13°C) feels frosty.
Daylight
In Jamestown, the average length of the day in April is 13h and 22min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:11 pm. On the last day of April, sunrise is at 5:42 am and sunset at 7:42 pm EDT.
Sunshine
In April, the average sunshine in Jamestown is 8.3h.UV index
The average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In April, the maximum UV index of 3 suggests these recommendations:
Guard yourself - Avoiding sunburn is suggested. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Jamestown in April?
What is the average humidity in April in Jamestown?
How much does it rain in Jamestown in April?
When it does not snow in Jamestown?
Does it snow in Jamestown in April?
What is the water temperature in April in Jamestown?
What is the average length of the day in April in Jamestown?
When is the sunrise / sunset in April in Jamestown?
How long on average sun shines in April in Jamestown?
How high is the UV index in April in Jamestown?
Average temperature in April
Jamestown, RI
- Average high temperature in April: 53.2°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in April: 42.1°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure in April
Jamestown, RI
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Jamestown, RI
- Average wind speed in April: 11.1mph
The windiest month (with the highest average wind speed) is January (12.1mph).
The calmest month (with the lowest average wind speed) is August (8.1mph).
Average humidity in April
Jamestown, RI
- Average humidity in April: 74%
The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is March (73%).
Average rainfall in April
Jamestown, RI
- Average rainfall in April: 2.95"
The wettest month (with the highest rainfall) is October (3.27").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in April
Jamestown, RI
- Average rainfall days in April: 15.6 days
The month with the highest number of rainy days is April (15.6 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in April
Jamestown, RI
- Average snowfall in April: 0"
The month with the highest snowfall is February (2.76").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in April
Jamestown, RI
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in April
Jamestown, RI
- Average sea temperature in April: 44.5°F
The best month for swimming (with the highest average sea temperature) is August (69.6°F).
The coldest month (with the lowest average sea temperature) is February (38.1°F).
Average daylight in April /
Average sunshine in April
Jamestown, RI
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 8h and 2min
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 48min).
Average sunshine days in April
Jamestown, RI
- Average sunshine days in April: 12.3 days
The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is April (12.3 days).
Average UV index in April
Jamestown, RI
- 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 and December (UV index 2).
Average cloud cover in April
Jamestown, RI
- Average cloud cover in April: 46
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in April
Jamestown, RI
- 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).
Jamestown, Rhode Island, USA
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