May weather forecast
Jamestown, NY

Weather in May

May, the last month of the spring in Jamestown, is a comfortable month, with an average temperature fluctuating between 63.7°F (17.6°C) and 46.8°F (8.2°C).

Temperature

In Jamestown, the average high-temperature in May increases from a cool 51.3°F (10.7°C) in April to a comfortable 63.7°F (17.6°C). The average low-temperature, in Jamestown, New York, is 46.8°F (8.2°C).

Humidity

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

Rainfall

In Jamestown, in May, during 17.5 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. In Jamestown, during the entire year, the rain falls for 163.4 days and collects up to 27.72" (704mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 1 snowfall days, Jamestown aggregates 0.12" (3mm) 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 May is 14h and 35min.
On the first day of May, sunrise is at 6:12 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:45 pm EDT.

Sunshine

In May, the average sunshine in Jamestown is 8.7h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 5 in May transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in May in Jamestown?

In Jamestown, New York, in May, the average high-temperature is 63.7°F (17.6°C), and the average low-temperature is 46.8°F (8.2°C).

What is the least humid month in Jamestown?

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

What is the average humidity in May in Jamestown?

The average relative humidity in May is 81%.

How much does it rain in Jamestown in May?

In May, the rain falls for 17.5 days. Throughout May, 2.8" (71mm) of precipitation is accumulated.

What is the last month it snows in Jamestown?

May is the last month it regularly snows. During 1 snowfall days, in May, Jamestown aggregates 0.12" (3mm) of snow.

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

In May, the average day length in Jamestown is 14h and 35min.

What time are sunrise and sunset in May in Jamestown?

On the first day of May in Jamestown, sunrise is at 6:12 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:45 pm EDT.

How long on average sun shines in May in Jamestown?

The average sunshine duration in May in Jamestown is 8.7h.

What are the months with the highest UV index in Jamestown?

May through August, with an average maximum UV index of 5, are months with the highest UV index in Jamestown, New York.

What is the UV index intensity in May in Jamestown?

In Jamestown, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Jamestown, NY

Average temperature in May - Jamestown, NY
  • Average high temperature in May: 63.7°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 May: 46.8°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).

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Average pressure in May
Jamestown, NY

Average pressure in May - Jamestown, NY
  • Average pressure in May: 29.99"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).

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Average wind speed in May
Jamestown, NY

Average wind speed in May - Jamestown, NY
  • Average wind speed in May: 7.8mph

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).

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Average humidity in May
Jamestown, NY

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

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

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Average rainfall in May
Jamestown, NY

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

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

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Average rainfall days in May
Jamestown, NY

Average rainfall days in May - Jamestown, NY
  • Average rainfall days in May: 17.5 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).

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Average snowfall in May
Jamestown, NY

Average snowfall in May - Jamestown, NY
  • Average snowfall in May: 0.12"

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

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Average snowfall days in May
Jamestown, NY

Average snowfall days in May - Jamestown, NY
  • Average snowfall days in May: 1 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).

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

Average daylight in May / Average sunshine in May - Jamestown, NY
  • Average daylight in May: 14h and 35min

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 10min).

  • Average sunshine in May: 8h and 42min

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).

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Average sunshine days in May
Jamestown, NY

Average sunshine days in May - Jamestown, NY
  • Average sunshine days in May: 11.8 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).

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Average UV index in May
Jamestown, NY

Average UV index in May - Jamestown, NY
  • Average UV index in May: 5

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).

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Average cloud cover in May
Jamestown, NY

Average cloud cover in May - Jamestown, NY
  • Average cloud cover in May: 45

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

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Average visibility in May
Jamestown, NY

Average visibility in May - Jamestown, NY
  • Average visibility in May: 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).

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