April weather forecast
Jamestown, RI

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Weather in April

April finds Jamestown in the heart of spring. Blooming flowers find welcoming conditions, with higher temperatures and ample availability of water from frequent rain showers. The atmosphere takes a turn towards warmth, with the average high temperature making its way up to the fifties. The climatological data points towards longer days with 13.4 hours of daylight, complemented by an enhanced UV index of 3, indicating a strengthening sun. Residents of Jamestown find April to be a harmonious transition leading towards summer, marked by the gentle ascent of temperatures and the unveiling of the city's full colour spectrum.

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.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Jamestown in April?

In Jamestown, in April, the average high-temperature is 53.2°F (11.8°C), and the average low-temperature is 42.1°F (5.6°C).

What is the average humidity in April in Jamestown?

The average relative humidity in April in Jamestown is 74%.

How much does it rain in Jamestown in April?

In Jamestown, in April, during 15.6 rainfall days, 2.95" (75mm) of precipitation is typically accumulated.

When it does not snow in Jamestown?

April, June through October are months without snowfall in Jamestown.

Does it snow in Jamestown in April?

In April, in Jamestown, Rhode Island, it doesn't snow. March is the latest month when it typically snows.

What is the water temperature in April in Jamestown?

In Jamestown, in April, the average water temperature is 44.4°F (6.9°C). Swimming in 44.4°F (6.9°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

What is the average length of the day in April in Jamestown?

The average day length in April in Jamestown is 13h and 22min.

When is the sunrise / sunset in April in Jamestown?

On the first day of April, sunrise is at 6:27 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 7:42 pm EDT.

How long on average sun shines in April in Jamestown?

In Jamestown, Rhode Island, the average sunshine duration in April is 8.3h.

How high is the UV index in April in Jamestown?

In April, the average daily maximum UV index in Jamestown is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Jamestown, RI

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / 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 - 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 - 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 - 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 - 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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