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
Dorchester's transition into May is marked by a clear rise in the average high-temperature, advancing from a frosty 49.3°F (9.6°C) in April to a refreshing 64°F (17.8°C). Dorchester reports an average low-temperature of 45°F (7.2°C) during the nights of May.Humidity
The months with the lowest humidity in Dorchester are April and May, with an average relative humidity of 78%.Rainfall
In May, the rain falls for 14.8 days. Throughout May, 1.46" (37mm) of precipitation is accumulated. In Dorchester, during the entire year, the rain falls for 102.5 days and collects up to 11.18" (284mm) of precipitation.Snowfall
Months with snowfall in Dorchester are January through May, October through December. May is the last month it regularly snows in Dorchester. During 0.3 snowfall days, in May, Dorchester aggregates 0.31" (8mm) of snow. In Dorchester, during the entire year, snow falls for 58.8 days and aggregates up to 10.83" (275mm) of snow.Daylight
The average length of the day in May in Dorchester is 14h and 52min.On the first day of May in Dorchester, sunrise is at 5:49 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 5:17 am and sunset at 8:40 pm CDT.
Sunshine
In May, the average sunshine is 8.3h.UV index
In May, the average daily maximum UV index in Dorchester is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum UV index of 4 in May translates into the following recommendations:
Be vigilant - Preventing sunburn is recommended. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Dorchester?
What are the least humid months in Dorchester?
What is the average humidity in May in Dorchester?
How many days does it rain in May in Dorchester?
What is the last month it snows in Dorchester?
How many hours of daylight does Dorchester have in May?
What time are sunrise and sunset in May in Dorchester?
How many hours of sunshine does Dorchester have in May?
What is the UV index reading in May in Dorchester?
Average temperature in May
Dorchester, WI
- Average high temperature in May: 64°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (18.9°F).
- Average low temperature in May: 45°F
The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (6.4°F).
Average pressure in May
Dorchester, WI
- Average pressure in May: 29.95"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Dorchester, WI
- Average wind speed in May: 8.7mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in May
Dorchester, WI
- Average humidity in May: 78%
The months with the highest relative humidity are January and February (92%).
The months with the lowest relative humidity are April and May (78%).
Average rainfall in May
Dorchester, WI
- Average rainfall in May: 1.46"
The wettest month (with the highest rainfall) is June (1.61").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in May
Dorchester, WI
- Average rainfall days in May: 14.8 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (1.5 days).
Average snowfall in May
Dorchester, WI
- Average snowfall in May: 0.31"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Dorchester, WI
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Dorchester, WI
- Average daylight in May: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in May: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in May
Dorchester, WI
- Average sunshine days in May: 13.2 days
The month with the most sunshine days is January (20.1 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in May
Dorchester, WI
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in May
Dorchester, WI
- Average cloud cover in May: 46
The month with the most cloud cover is January (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in May
Dorchester, WI
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, March, July, August, September and December (5mi).
Dorchester, Wisconsin, USA
Weather forecast for your location
2. Allow the app to use your location