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
With the onset of May, Jefferson's average high-temperature sees a rise, moving from April's cool 50.5°F (10.3°C) to a refreshing 63.9°F (17.7°C). May brings with it a nighttime average temperature of 44.6°F (7°C).Humidity
April through July, with an average relative humidity of 80%, are the least humid months.Rainfall
In Jefferson, in May, during 19.3 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. Throughout the year, in Jefferson, there are 150.7 rainfall days, and 27.83" (707mm) of precipitation is accumulated.Snowfall
Months with snowfall in Jefferson are January through May, October through December. May is the last month it regularly snows in Jefferson. During 1.8 snowfall days, in May, Jefferson aggregates 1.85" (47mm) of snow. Throughout the year, there are 98 snowfall days, and 50.39" (1280mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 38min.On the first day of May in Jefferson, New York, sunrise is at 5:52 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 5:23 am and sunset at 8:28 pm EDT.
Sunshine
The average sunshine in May in Jefferson is 7.9h.UV index
In Jefferson, New York, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In May, a regular UV index of 4 translates into these guidelines:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Jefferson?
What is the least humid month in Jefferson?
What is the average humidity in May in Jefferson?
How many days does it rain in May in Jefferson?
What is the last month it snows in Jefferson?
What is the average length of the day in May in Jefferson?
What time are sunrise and sunset in May in Jefferson?
How many hours of sunshine does Jefferson have in May?
What is the UV index intensity in May in Jefferson?
Average temperature in May
Jefferson, NY
- Average high temperature in May: 63.9°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in May: 44.6°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in May
Jefferson, NY
- Average pressure in May: 30"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
Jefferson, NY
- Average wind speed in May: 7mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in May
Jefferson, NY
- Average humidity in May: 80%
The months with the highest relative humidity are February and December (87%).
The months with the lowest relative humidity are April, May, June and July (80%).
Average rainfall in May
Jefferson, NY
- Average rainfall in May: 2.83"
The wettest month (with the highest rainfall) is August (3.27").
The driest month (with the least rainfall) is January (1.5").
Average rainfall days in May
Jefferson, NY
- Average rainfall days in May: 19.3 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (4.6 days).
Average snowfall in May
Jefferson, NY
- Average snowfall in May: 1.85"
The month with the highest snowfall is December (9.84").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Jefferson, NY
- Average snowfall days in May: 1.8 days
The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Jefferson, 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 6min).
- Average sunshine in May: 7h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days in May
Jefferson, NY
- Average sunshine days in May: 9.1 days
The month with the most sunshine days is September (15 days).
The month with the least sunshine days is February (7.5 days).
Average UV index in May
Jefferson, NY
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in May
Jefferson, NY
- Average cloud cover in May: 52
The month with the most cloud cover is February (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in May
Jefferson, NY
- Average visibility in May: 5mi
The months with the highest visibility are January, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are February, March and September (4mi).
Jefferson, New York, USA
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