Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
In Jamestown, the average high-temperature in May increases from a cool 51.3°F (10.7°C) in April to an enjoyable 63.7°F (17.6°C). Jamestown experiences an average low-temperature reading of 46.8°F (8.2°C) throughout May.Humidity
The months with the lowest humidity in Jamestown are April, May and September, with an average relative humidity of 81%.Rainfall
In Jamestown, in May, during 17.5 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. Throughout the year, 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. May is the last month it regularly snows. During 1 snowfall days, in May, Jamestown aggregates 0.12" (3mm) of snow. Throughout the year, in Jamestown, there are 85.6 snowfall days, and 32.91" (836mm) of snow is accumulated.Daylight
In Jamestown, New York, the average length of the day in May is 14h and 35min.On the first day of May, sunrise is at 6:11 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:45 pm EDT.
Sunshine
In Jamestown, the average sunshine in May is 8.7h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index in Jamestown. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 5 in May translates into these instructions:
Undertake precautions - Guarding against sun damage is counselled. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Jamestown in May?
What are the least humid months in Jamestown?
What is the average humidity in May in Jamestown?
How many days does it rain in May in Jamestown?
What is the last month it snows in Jamestown?
What is the average length of the day in May in Jamestown?
When is the sunrise / sunset in May in Jamestown?
How many hours of sunshine does Jamestown have in May?
When is the highest UV index in Jamestown?
What is the UV index reading in May in Jamestown?
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in May /
Average sunshine in May
Jamestown, NY
- Average daylight in May: 14h and 4min
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 May: 8h and 4min
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 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).
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).
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).
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).
Jamestown, New York, USA
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