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
May brings with it a considerable temperature increase, with average high-temperatures rising from April's chilly 49.6°F (9.8°C) to an enjoyable 64.4°F (18°C). An average low-temperature of 44.2°F (6.8°C) is recorded during the nights in May.Humidity
The least humid month is May, with an average relative humidity of 75%.Rainfall
In May, the rain falls for 16.8 days. Throughout May, 2.83" (72mm) of precipitation is accumulated. In Port Arthur, during the entire year, the rain falls for 128.5 days and collects up to 23.94" (608mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.7 snowfall days, in May, Port Arthur aggregates 1.02" (26mm) of snow. In Port Arthur, during the entire year, snow falls for 88.7 days and aggregates up to 35.87" (911mm) of snow.Daylight
In Port Arthur, Wisconsin, the average length of the day in May is 14h and 55min.On the first day of the month, sunrise is at 5:51 am and sunset at 8:11 pm. On the last day of May, sunrise is at 5:19 am and sunset at 8:45 pm CDT.
Sunshine
In Port Arthur, the average sunshine in May is 8.3h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index in Port Arthur, Wisconsin. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In May, a daily UV index of 5 turns into the following recommendations:
Take precautions - Protection against sunburn is recommended. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. During bright days, sunglasses that offer UVA and UVB defense are recommended. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Port Arthur in May?
What is the least humid month?
What is the average humidity in May?
How many days does it rain in May?
What is the last month it snows?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Port Arthur have in May?
What are the months with the highest UV index?
What is the UV index reading in May?
Average temperature in May
Port Arthur, WI
- Average high temperature in May: 64.4°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (18.1°F).
- Average low temperature in May: 44.2°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 (5.4°F).
Average pressure in May
Port Arthur, 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 (29.89"Hg).
Average wind speed in May
Port Arthur, WI
- Average wind speed in May: 8mph
The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in May
Port Arthur, WI
- Average humidity in May: 75%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (75%).
Average rainfall in May
Port Arthur, WI
- Average rainfall in May: 2.83"
The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in May
Port Arthur, WI
- Average rainfall days in May: 16.8 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in May
Port Arthur, WI
- Average snowfall in May: 1.02"
The month with the highest snowfall is December (7.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Port Arthur, WI
- Average snowfall days in May: 0.7 days
The month with the highest number of snowfall days is January (19.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Port Arthur, 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 months with the least sunshine are January and February (Average sunshine: 2h and 36min).
Average sunshine days in May
Port Arthur, WI
- Average sunshine days in May: 11.6 days
The month with the most sunshine days is October (16 days).
The months with the least sunshine days are February and April (10 days).
Average UV index in May
Port Arthur, WI
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in May
Port Arthur, WI
- Average cloud cover in May: 46
The months with the most cloud cover are January and February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in May
Port Arthur, WI
- Average visibility in May: 6mi
The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January, February and December (4mi).
Port Arthur, Wisconsin, USA
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