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 arrival of May brings a change in Williamsville's weather, with average high-temperatures moving from April's refreshing 67.5°F (19.7°C) to a moderately hot 76.6°F (24.8°C). During May, the nighttime temperature averages to a refreshing 59.5°F (15.3°C).Humidity
With an average relative humidity of 79%, May is the most humid month in Williamsville, Missouri.Rainfall
In Williamsville, during May, the rain falls for 16.2 days and regularly aggregates up to 4.53" (115mm) of precipitation. In Williamsville, during the entire year, the rain falls for 156.7 days and collects up to 37.44" (951mm) of precipitation.Snowfall
In Williamsville, Missouri, snow does not fall in April through September.Daylight
In May, the average length of the day is 14h and 10min.On the first day of the month, sunrise is at 6:06 am and sunset at 7:51 pm. On the last day of May, in Williamsville, sunrise is at 5:44 am and sunset at 8:15 pm CDT.
Sunshine
In Williamsville, the average sunshine in May is 9.3h.UV index
The months with the highest UV index in Williamsville are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 6 during May translates into the following guidance:
Stay clear of intense sun exposure. Solar protection is of utmost significance. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Williamsville?
What is the most humid month in Williamsville?
What is the average humidity in May in Williamsville?
How many days does it rain in May in Williamsville?
When it does not snow in Williamsville?
How many hours of daylight does Williamsville have in May?
When are sunrise and sunset in May in Williamsville?
How many hours of sunshine does Williamsville have in May?
What is the month with the highest UV index in Williamsville?
What is the UV index intensity in May in Williamsville?
Average temperature in May
Williamsville, MO
- Average high temperature in May: 76.6°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (42.1°F).
- Average low temperature in May: 59.5°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (28°F).
Average pressure in May
Williamsville, MO
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Williamsville, MO
- Average wind speed in May: 7.2mph
The windiest month (with the highest average wind speed) is February (8.7mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in May
Williamsville, MO
- Average humidity in May: 79%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in May
Williamsville, MO
- Average rainfall in May: 4.53"
The wettest month (with the highest rainfall) is April (4.8").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in May
Williamsville, MO
- Average rainfall days in May: 16.2 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (9.6 days).
Average snowfall in May
Williamsville, MO
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.69").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in May
Williamsville, MO
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Williamsville, MO
- Average daylight in May: 14h and 1min
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 42min).
- Average sunshine in May: 9h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in May
Williamsville, MO
- Average sunshine days in May: 12.6 days
The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in May
Williamsville, MO
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in May
Williamsville, MO
- Average cloud cover in May: 37
The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in May
Williamsville, 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).
Williamsville, Missouri, USA
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