April weather forecast
Jamestown, NY

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Weather in April

April marks a significant change in Jamestown’s weather. The month shows visible signs of spring, with the weather warming to an average high of 51.3°F (10.7°C). Snowfall becomes almost negligible, with a notable shift from snowy to rainy conditions. The length of daylight goes beyond half the day and the increasing sunlight reflects the retreat of winter. However, April is notorious for sudden weather changes, so in spite of warmer days, it is advisable to be prepped for colder nights.

Temperature

Jamestown's weather shows a temperature rise with the arrival of April, moving from an icy 39.6°F (4.2°C) in March to a cool 51.3°F (10.7°C). Jamestown throughout April, experiences an average nighttime temperature of 35.6°F (2°C).

Humidity

April, May and September, with an average relative humidity of 81%, are the least humid months.

Rainfall

In Jamestown, in April, during 16.8 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. Throughout the year, in Jamestown, there are 163.4 rainfall days, and 27.72" (704mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Jamestown, in April, snow falls for 5.2 days, with typically accumulated 2.4" (61mm) of snow. In Jamestown, during the entire year, snow falls for 85.6 days and aggregates up to 32.91" (836mm) of snow.

Daylight

In Jamestown, the average length of the day in April is 13h and 23min.
On the first day of the month, sunrise is at 6:58 am and sunset at 7:43 pm. On the last day of April, in Jamestown, sunrise is at 6:12 am and sunset at 8:15 pm EDT.

Sunshine

In Jamestown, the average sunshine in April is 7h.

UV index

The average daily maximum UV index in April in Jamestown is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 3 during April translates into the following guidance:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Jamestown in April?

In April, the average high-temperature and low-temperature in Jamestown are 51.3°F (10.7°C) and 35.6°F (2°C) respectively.

What are the least humid months in Jamestown?

The months with the lowest humidity are April, May and September, with an average relative humidity of 81%.

What is the average humidity in April in Jamestown?

The average relative humidity in April in Jamestown is 81%.

How many days does it rain in April in Jamestown?

In Jamestown, New York, in April, it is raining for 16.8 days, with typically 2.8" (71mm) of accumulated precipitation.

How many days does it snow in April in Jamestown?

In Jamestown, New York, during April, snow falls for 5.2 days and regularly aggregates up to 2.4" (61mm) of snow.

How many hours of daylight does Jamestown have in April?

The average day length in April is 13h and 23min.

When is the sunrise / sunset in April in Jamestown?

In April, on the first day of the month, sunrise is at 6:58 am and sunset at 7:43 pm. On the last day of the month, in Jamestown, sunrise is at 6:12 am and sunset at 8:15 pm EDT.

How many hours of sunshine does Jamestown have in April?

The average sunshine duration in April is 7h.

How high is the UV index in April in Jamestown?

In Jamestown, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from 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, NY

Average temperature in April - Jamestown, NY
  • Average high temperature in April: 51.3°F

The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in April: 35.6°F

The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).

Average pressure in April
Jamestown, NY

Average pressure in April - Jamestown, NY
  • Average pressure in April: 29.97"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in April
Jamestown, NY

Average wind speed in April - Jamestown, NY
  • Average wind speed in April: 9.5mph

The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).

Average humidity in April
Jamestown, NY

Average humidity in April - Jamestown, NY
  • Average humidity in April: 81%

The month with the highest relative humidity is February (89%).
The months with the lowest relative humidity are April, May and September (81%).

Average rainfall in April
Jamestown, NY

Average rainfall in April - Jamestown, NY
  • Average rainfall in April: 2.8"

The wettest month (with the highest rainfall) is October (2.83").
The driest month (with the least rainfall) is September (1.81").

Average rainfall days in April
Jamestown, NY

Average rainfall days in April - Jamestown, NY
  • Average rainfall days in April: 16.8 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (6.9 days).

Average snowfall in April
Jamestown, NY

Average snowfall in April - Jamestown, NY
  • Average snowfall in April: 2.4"

The month with the highest snowfall is December (7.68").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in April
Jamestown, NY

Average snowfall days in April - Jamestown, NY
  • Average snowfall days in April: 5.2 days

The month with the highest number of snowfall days is January (20.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in April /
Average sunshine in April
Jamestown, NY

Average daylight in April / Average sunshine in April - Jamestown, NY
  • 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 12min).

  • Average sunshine in April: 7h and 0min

The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).

Average sunshine days in April
Jamestown, NY

Average sunshine days in April - Jamestown, NY
  • Average sunshine days in April: 9.8 days

The month with the most sunshine days is September (12.5 days).
The month with the least sunshine days is January (5.6 days).

Average UV index in April
Jamestown, NY

Average UV index in April - Jamestown, NY
  • 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 January and December (UV index 1).

Average cloud cover in April
Jamestown, NY

Average cloud cover in April - Jamestown, NY
  • Average cloud cover in April: 53

The month with the most cloud cover is January (Cloud cover 79).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in April
Jamestown, NY

Average visibility in April - Jamestown, NY
  • Average visibility in April: 6mi

The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (4mi).

Jamestown, New York, USA

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