May weather forecastNapoleon, KY
May
Weather in May
May, the last month of the spring in Napoleon, is a moderately hot month, with an average temperature varying between 74.3°F (23.5°C) and 55.4°F (13°C).Temperature
May marks a rise in the average high-temperature, moving from April's comfortable 64.8°F (18.2°C) to a moderately hot 74.3°F (23.5°C). During May, Napoleon sees a mean low-temperature of 55.4°F (13°C).Humidity
In May, the average relative humidity in Napoleon is 80%.Rainfall
May is the month with the most rainfall. Rain falls for 13.8 days and accumulates 1.18" (30mm) of precipitation.Snowfall
May through October are months without snowfall in Napoleon, Kentucky.Daylight
In Napoleon, the average length of the day in May is 14h and 18min.On the first day of the month, sunrise is at 6:40 am and sunset at 8:31 pm. On the last day of May, sunrise is at 6:16 am and sunset at 8:57 pm EDT.
Sunshine
The average sunshine in May in Napoleon, Kentucky, is 8.9h.UV index
In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The UV index of 5 in May translates into these instructions:
Prioritize safety - Recommendations to avert sunburn are shared. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Napoleon, KY
- Average high temperature in May: 74.3°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in May: 55.4°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in May
Napoleon, KY
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Napoleon, KY
- Average wind speed in May: 6.5mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in May
Napoleon, KY
- Average humidity in May: 80%
The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are August, September and October (75%).
Average rainfall in May
Napoleon, KY
- Average rainfall in May: 1.18"
The wettest month (with the highest rainfall) is May (1.18").
The driest month (with the least rainfall) is September (0.55").
Average rainfall days in May
Napoleon, KY
- Average rainfall days in May: 13.8 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is November (6.8 days).
Average snowfall in May
Napoleon, KY
- Average snowfall in May: 0"
The month with the highest snowfall is December (0.47").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Napoleon, KY
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Napoleon, KY
- Average daylight in May: 14h and 18min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 8h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in May
Napoleon, KY
- Average sunshine days in May: 13.6 days
The months with the most sunshine days are October and November (21 days).
The month with the least sunshine days is May (13.6 days).
Average UV index in May
Napoleon, KY
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Napoleon, KY
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in May
Napoleon, KY
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are May and July (5mi).
