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
A rise in the average high-temperature is observed during May, moving from a cool 50.4°F in April to an enjoyable 63.1°F. In May, the recorded average low-temperature in Lewiston is a chilly 48.7°F.Humidity
In Lewiston, the average relative humidity in May is 77%.Rainfall
In Lewiston, New York, in May, it is raining for 17.6 days, with typically 2.95" of accumulated precipitation. In Lewiston, during the entire year, the rain falls for 169.3 days and collects up to 30.31" of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Lewiston aggregates 0.24" of snow. Throughout the year, there are 65.6 snowfall days, and 22.6" of snow is accumulated.Daylight
In May, the average length of the day in Lewiston, New York, is 14h and 41min.On the first day of the month, sunrise is at 6:09 am and sunset at 8:17 pm. On the last day of May, sunrise is at 5:39 am and sunset at 8:48 pm EDT.
Sunshine
In Lewiston, the average sunshine in May is 9.1h.UV index
In Lewiston, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 5 in May converts into the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
FAQ
What is the average May temperature in Lewiston?
What is the average humidity in May in Lewiston?
How much does it rain in Lewiston in May?
What is the last month it snows in Lewiston?
What is the average length of the day in May in Lewiston?
When are sunrise and sunset in May in Lewiston?
How many hours of sunshine does Lewiston have in May?
How high is the UV index in May in Lewiston?
Average temperature in May
Lewiston, NY
- Average high temperature in May: 63.1°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in May: 48.7°F
The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in May
Lewiston, NY
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Lewiston, NY
- Average wind speed in May: 8.1mph
The windiest month (with the highest average wind speed) is January (12.3mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in May
Lewiston, NY
- Average humidity in May: 77%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are August and September (74%).
Average rainfall in May
Lewiston, NY
- Average rainfall in May: 2.95"
The wettest month (with the highest rainfall) is July (3.11").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in May
Lewiston, NY
- Average rainfall days in May: 17.6 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in May
Lewiston, NY
- Average snowfall in May: 0.24"
The month with the highest snowfall is February (7.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Lewiston, NY
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Lewiston, NY
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in May
Lewiston, NY
- Average sunshine days in May: 12.4 days
The month with the most sunshine days is September (14 days).
The month with the least sunshine days is January (6.8 days).
Average UV index in May
Lewiston, NY
- Average UV index in May: 5
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Lewiston, NY
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in May
Lewiston, NY
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Lewiston, New York, USA
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