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
The shift into May is marked by a rise in the average high-temperature, moving from April's refreshing 57.7°F (14.3°C) to a pleasant 69.6°F (20.9°C). The average low-temperature in Napoleon during May nights is a cool 52.7°F (11.5°C).Humidity
In May, the average relative humidity in Napoleon is 77%.Rainfall
In Napoleon, in May, it is raining for 18.9 days, with typically 2.87" (73mm) of accumulated precipitation. In Napoleon, during the entire year, the rain falls for 165.5 days and collects up to 27.24" (692mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Napoleon aggregates 0.04" (1mm) of snow. In Napoleon, during the entire year, snow falls for 52.7 days and aggregates up to 15.24" (387mm) of snow.Daylight
In Napoleon, the average length of the day in May is 14h and 32min.On the first day of the month, sunrise is at 6:32 am and sunset at 8:34 pm. On the last day of May, in Napoleon, sunrise is at 6:05 am and sunset at 9:03 pm EDT.
Sunshine
In May, the average sunshine in Napoleon is 8.8h.UV index
In May, the average daily maximum UV index 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 translates into these guidelines:
Guard yourself - An obligation to protect skin and eyes from harm exists. To protect against the Sun's most potent rays, avoid direct exposure around midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
How many days does it rain in May in Napoleon?
What is the last month it snows?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How long on average sun shines in May?
What is the UV index reading in May?
Average temperature in May
Napoleon, OH
- Average high temperature in May: 69.6°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in May: 52.7°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure in May
Napoleon, OH
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Napoleon, OH
- Average wind speed in May: 8.2mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in May
Napoleon, OH
- Average humidity in May: 77%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is October (74%).
Average rainfall in May
Napoleon, OH
- Average rainfall in May: 2.87"
The wettest month (with the highest rainfall) is April (3.15").
The driest month (with the least rainfall) is December (1.61").
Average rainfall days in May
Napoleon, OH
- Average rainfall days in May: 18.9 days
The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is February (8.6 days).
Average snowfall in May
Napoleon, OH
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (4.09").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Napoleon, OH
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (14.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Napoleon, OH
- Average daylight in May: 14h and 3min
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 12min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in May
Napoleon, OH
- Average sunshine days in May: 10 days
The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in May
Napoleon, OH
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Napoleon, OH
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in May
Napoleon, OH
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, August and September (5mi).
Napoleon, Ohio, USA
Weather forecast for your location
2. Allow the app to use your location