May weather forecastWilliamston, OH
May
Weather in May
The last month of the spring, May, is an agreeable month in Williamston, Ohio, with an average temperature fluctuating between 70.5°F (21.4°C) and 50°F (10°C).Temperature
Williamston in May shows a temperature shift, moving from an average high of a moderate 58.6°F (14.8°C) in April to a pleasant 70.5°F (21.4°C). Williamston throughout May, records an average low-temperature of 50°F (10°C).Humidity
The months with the lowest humidity are April, May, July and August, with an average relative humidity of 77%.Rainfall
In Williamston, in May, it is raining for 19.3 days, with typically 3.31" (84mm) of accumulated precipitation. Throughout the year, there are 174.2 rainfall days, and 33.03" (839mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.4 snowfall days, in May, Williamston aggregates 0.16" (4mm) of snow. In Williamston, during the entire year, snow falls for 71.4 days and aggregates up to 26.73" (679mm) of snow.Daylight
In Williamston, the average length of the day in May is 14h and 30min.On the first day of May, sunrise is at 6:19 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:48 pm EDT.
Sunshine
In May, the average sunshine is 8.5h.UV index
The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: In May, the maximum UV index of 5 transforms into these recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. To guard against the harmful effects of the Sun, minimize exposure during midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Williamston, OH
- Average high temperature in May: 70.5°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in May: 50°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in May
Williamston, OH
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Williamston, OH
- Average wind speed in May: 6.4mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in May
Williamston, OH
- Average humidity in May: 77%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, May, July and August (77%).
Average rainfall in May
Williamston, OH
- Average rainfall in May: 3.31"
The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in May
Williamston, OH
- 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 (8.4 days).
Average snowfall in May
Williamston, OH
- Average snowfall in May: 0.16"
The month with the highest snowfall is January (7.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Williamston, OH
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is January (18.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Williamston, OH
- Average daylight in May: 14h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 8h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in May
Williamston, OH
- Average sunshine days in May: 9.8 days
The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is February (7.2 days).
Average UV index in May
Williamston, OH
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Williamston, OH
- Average cloud cover in May: 46
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in May
Williamston, OH
- Average visibility in May: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
