May weather forecastMorrisville, MO
May
Weather in May
The last month of the spring, May, is a warm month in Morrisville, Missouri, with an average temperature fluctuating between 75.6°F (24.2°C) and 56.7°F (13.7°C).Temperature
The shift into May is accompanied by a temperature increase, with the average high-temperature rising from an enjoyable 66.4°F (19.1°C) in April to a warm 75.6°F (24.2°C). Morrisville throughout May, records an average low-temperature of 56.7°F (13.7°C).Humidity
The most humid month is May, with an average relative humidity of 78%.Rainfall
May is the month with the most rainfall. Rain falls for 17.4 days and accumulates 5.28" (134mm) 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, Morrisville aggregates 0.16" (4mm) of snow. Throughout the year, there are 18.4 snowfall days, and 8.35" (212mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 12min.On the first day of the month, sunrise is at 6:17 am and sunset at 8:04 pm. On the last day of May, sunrise is at 5:54 am and sunset at 8:28 pm CDT.
Sunshine
In May, the average sunshine is 9.1h.UV index
The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 5 during May translates into the following guidance:
Exercise prevention - Protecting skin and eyes from harm is required. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Morrisville, MO
- Average high temperature in May: 75.6°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (41°F).
- Average low temperature in May: 56.7°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure in May
Morrisville, MO
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are April and June (29.93"Hg).
Average wind speed in May
Morrisville, MO
- Average wind speed in May: 8.3mph
The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).
Average humidity in May
Morrisville, MO
- Average humidity in May: 78%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Morrisville, MO
- Average rainfall in May: 5.28"
The wettest month (with the highest rainfall) is May (5.28").
The driest months (with the least rainfall) are January and December (1.57").
Average rainfall days in May
Morrisville, MO
- Average rainfall days in May: 17.4 days
The month with the highest number of rainy days is May (17.4 days).
The months with the least rainy days are January and December (6.9 days).
Average snowfall in May
Morrisville, MO
- Average snowfall in May: 0.16"
The month with the highest snowfall is February (2.64").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Morrisville, MO
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (6.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Morrisville, MO
- Average daylight in May: 14h and 12min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in May: 9h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in May
Morrisville, MO
- Average sunshine days in May: 11.1 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in May
Morrisville, 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
Morrisville, MO
- Average cloud cover in May: 38
The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are June, July and August (Cloud cover 27).
Average visibility in May
Morrisville, 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).





