May weather forecastNapoleon, MO
May
Weather in May
The last month of the spring, May, is a pleasant month in Napoleon, Missouri, with an average temperature varying between 55.9°F (13.3°C) and 72.7°F (22.6°C).Temperature
In May, the meteorological conditions subtly change with the average high-temperature edging from an enjoyable 63.9°F (17.7°C) in April to an agreeable 72.7°F (22.6°C). Napoleon experiences a nighttime temperature average of 55.9°F (13.3°C) during May.Humidity
May and June, with an average relative humidity of 79%, are the most humid months.Rainfall
May is the month with the most rainfall. Rain falls for 17 days and accumulates 3.62" (92mm) of precipitation.Snowfall
January through March, May, October through December are months with snowfall. May is the first month it typically snows. Throughout May, in the average 0.2 snowfall days, it receives 0.2" (5mm) of snow. Throughout the year, there are 16.7 snowfall days, and 8.86" (225mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 20min.On the first day of the month, sunrise is at 6:16 am and sunset at 8:09 pm. On the last day of May, sunrise is at 5:52 am and sunset at 8:36 pm CDT.
Sunshine
The average sunshine in May is 8.6h.UV index
In Napoleon, 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 ordinary individuals.Note: The average daily UV index of 5 in May transforms into the following instructions:
Adopt protective measures - Suggestions to resist sunburn are offered. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Napoleon, MO
- Average high temperature in May: 72.7°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (36.5°F).
- Average low temperature in May: 55.9°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in May
Napoleon, MO
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in May
Napoleon, MO
- Average wind speed in May: 8mph
The windiest month (with the highest average wind speed) is March (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in May
Napoleon, MO
- Average humidity in May: 79%
The months with the highest relative humidity are May and June (79%).
The months with the lowest relative humidity are October and November (71%).
Average rainfall in May
Napoleon, MO
- Average rainfall in May: 3.62"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in May
Napoleon, MO
- Average rainfall days in May: 17 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in May
Napoleon, MO
- Average snowfall in May: 0.2"
The month with the highest snowfall is February (3.35").
The months with the least snowfall are April, June, July, August and September (0").
Average snowfall days in May
Napoleon, MO
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is February (4.9 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, MO
- Average daylight in May: 14h and 18min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 8h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in May
Napoleon, MO
- Average sunshine days in May: 11.6 days
The month with the most sunshine days is December (22 days).
The months with the least sunshine days are May and June (11.6 days).
Average UV index in May
Napoleon, MO
- 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, MO
- Average cloud cover in May: 39
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in May
Napoleon, MO
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





