May weather forecast
Unionville, MO

Share

Weather in May

May, the last month of the spring in Unionville, is a pleasant month, with an average temperature ranging between min 53.1°F (11.7°C) and max 69.6°F (20.9°C).

Temperature

As April transitions into May, Unionville notices a gentle rise in the average high-temperature, transitioning from an enjoyable 61°F (16.1°C) to a pleasant 69.6°F (20.9°C). During the May nights, an average temperature of 53.1°F (11.7°C) is observed in Unionville.

Humidity

In Unionville, Missouri, the average relative humidity in May is 82%.

Rainfall

In Unionville, during May, the rain falls for 16.8 days and regularly aggregates up to 3.15" (80mm) of precipitation. In Unionville, Missouri, during the entire year, the rain falls for 130.9 days and collects up to 24.65" (626mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Unionville. May is the last month it regularly snows in Unionville, Missouri. During 0.2 snowfall days, in May, Unionville aggregates 0.2" (5mm) of snow. In Unionville, during the entire year, snow falls for 28.3 days and aggregates up to 13.9" (353mm) of snow.

Daylight

The average length of the day in May is 14h and 27min.
On the first day of May in Unionville, sunrise is at 6:09 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:35 pm CDT.

Sunshine

In Unionville, the average sunshine in May is 8.3h.

UV index

The average daily maximum UV index in May in Unionville is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: A maximum high UV index of 5 in May translates into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Unionville in May?

The high-temperature during May is 69.6°F (20.9°C) and the low-temperature is 53.1°F (11.7°C).

What is the average humidity in May in Unionville?

In May, the average relative humidity in Unionville is 82%.

How many days does it rain in May in Unionville?

In May, the rain falls for 16.8 days. Throughout May, 3.15" (80mm) of precipitation is accumulated.

What is the last month it snows in Unionville?

May is the last month it regularly snows in Unionville. During 0.2 snowfall days, in May, Unionville aggregates 0.2" (5mm) of snow.

What is the average length of the day in May in Unionville?

In Unionville, the average day length in May is 14h and 27min.

When is the sunrise / sunset in May in Unionville?

On the first day of May in Unionville, sunrise is at 6:09 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:35 pm CDT.

How many hours of sunshine does Unionville have in May?

The average sunshine duration in May in Unionville, Missouri, is 8.3h.

How high is the UV index in May in Unionville?

The average daily maximum UV index in May in Unionville is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Unionville, MO

Average temperature in May - Unionville, MO
  • Average high temperature in May: 69.6°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (30.7°F).

  • Average low temperature in May: 53.1°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure in May
Unionville, MO

Average pressure in May - Unionville, MO
  • Average pressure in May: 29.93"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in May
Unionville, MO

Average wind speed in May - Unionville, MO
  • Average wind speed in May: 8.8mph

The windiest month (with the highest average wind speed) is March (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

Average humidity in May
Unionville, MO

Average humidity in May - Unionville, MO
  • Average humidity in May: 82%

The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (73%).

Average rainfall in May
Unionville, MO

Average rainfall in May - Unionville, MO
  • Average rainfall in May: 3.15"

The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is January (0.87").

Average rainfall days in May
Unionville, MO

Average rainfall days in May - Unionville, MO
  • Average rainfall days in May: 16.8 days

The month with the highest number of rainy days is May (16.8 days).
The months with the least rainy days are January and February (4.3 days).

Average snowfall in May
Unionville, MO

Average snowfall in May - Unionville, MO
  • Average snowfall in May: 0.2"

The month with the highest snowfall is January (3.86").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Unionville, MO

Average snowfall days in May - Unionville, MO
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Unionville, MO

Average daylight in May / Average sunshine in May - Unionville, MO
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in May
Unionville, MO

Average sunshine days in May - Unionville, MO
  • Average sunshine days in May: 11 days

The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is June (10.9 days).

Average UV index in May
Unionville, MO

Average UV index in May - Unionville, MO
  • 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 January (UV index 1).

Average cloud cover in May
Unionville, MO

Average cloud cover in May - Unionville, MO
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are August and September (Cloud cover 30).

Average visibility in May
Unionville, MO

Average visibility in May - Unionville, 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).

Unionville, Missouri, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location