May weather forecastLancaster, WI
May
Weather in May
The last month of the spring, May, is a refreshing month in Lancaster, Wisconsin, with an average temperature ranging between min 48.9°F (9.4°C) and max 66.7°F (19.3°C).Temperature
May's arrival signals an increase in average high-temperatures, moving from April's cool 54.5°F (12.5°C) to a refreshing 66.7°F (19.3°C). During May, the average low-temperature is recorded at a frosty 48.9°F (9.4°C).Humidity
The average relative humidity in May is 81%.Rainfall
In Lancaster, in May, it is raining for 18.5 days, with typically 3.54" (90mm) of accumulated precipitation. In Lancaster, during the entire year, the rain falls for 134.2 days and collects up to 27.32" (694mm) of precipitation.Snowfall
In Lancaster, snow does not fall in May through September.Daylight
In Lancaster, the average length of the day in May is 14h and 40min.On the first day of May in Lancaster, sunrise is at 5:55 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:26 am and sunset at 8:34 pm CDT.
Sunshine
The average sunshine in May is 8.2h.UV index
In Lancaster, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: A maximum high UV index of 5 in May translates into the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Lancaster, WI
- Average high temperature in May: 66.7°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in May: 48.9°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure in May
Lancaster, WI
- Average pressure in May: 29.95"Hg
The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Lancaster, WI
- Average wind speed in May: 8.5mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in May
Lancaster, WI
- Average humidity in May: 81%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (76%).
Average rainfall in May
Lancaster, WI
- Average rainfall in May: 3.54"
The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in May
Lancaster, WI
- Average rainfall days in May: 18.5 days
The month with the highest number of rainy days is May (18.5 days).
The months with the least rainy days are January and February (3.8 days).
Average snowfall in May
Lancaster, WI
- Average snowfall in May: 0"
The month with the highest snowfall is January (4.8").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Lancaster, WI
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (12.3 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
Lancaster, WI
- Average daylight in May: 14h and 42min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 8h and 12min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in May
Lancaster, WI
- Average sunshine days in May: 10.9 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (10 days).
Average UV index in May
Lancaster, WI
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in May
Lancaster, WI
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in May
Lancaster, WI
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
