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 signals a minor shift in the average high-temperature, moving from April's chilly 47.1°F (8.4°C) to a mild 55.4°F (13°C). Hyannis Port records a mild decrease in temperature during the nights of May, averaging a fresh 50.9°F (10.5°C).Humidity
In Hyannis Port, the average relative humidity in May is 83%.Rainfall
In Hyannis Port, in May, it is raining for 14.9 days, with typically 2.2" (56mm) of accumulated precipitation. Throughout the year, there are 157.2 rainfall days, and 31.77" (807mm) of precipitation is accumulated.Snowfall
May through November are months without snowfall.Daylight
In Hyannis Port, the average length of the day in May is 14h and 33min.On the first day of May in Hyannis Port, Massachusetts, sunrise is at 5:36 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 5:09 am and sunset at 8:08 pm EDT.
Sunshine
The average sunshine in May is 8.7h.UV index
The average daily maximum UV index in May in Hyannis Port, Massachusetts, is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In May, the maximum UV index of 4 translates into these guidelines:
Guard yourself - Avoiding sunburn is suggested. When the Sun is at its strongest around midday, find shade and limit exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Frequently asked questions
What are the temperatures in Hyannis Port in May?
What is the average humidity in May in Hyannis Port?
How many days does it rain in May in Hyannis Port?
When it does not snow in Hyannis Port?
Does it snow in Hyannis Port in May?
How many hours of daylight does Hyannis Port have in May?
When are sunrise and sunset in May in Hyannis Port?
How many hours of sunshine does Hyannis Port have in May?
How high is the UV index in May in Hyannis Port?
Average temperature in May
Hyannis Port, MA
- Average high temperature in May: 55.4°F
The warmest month (with the highest average high temperature) is August (72.5°F).
The month with the lowest average high temperature is January (38.3°F).
- Average low temperature in May: 50.9°F
The month with the highest average low temperature is August (68.2°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).
Average pressure in May
Hyannis Port, MA
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Hyannis Port, MA
- Average wind speed in May: 12.2mph
The windiest month (with the highest average wind speed) is January (16.5mph).
The calmest month (with the lowest average wind speed) is August (10.6mph).
Average humidity in May
Hyannis Port, MA
- Average humidity in May: 83%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is November (74%).
Average rainfall in May
Hyannis Port, MA
- Average rainfall in May: 2.2"
The wettest month (with the highest rainfall) is October (3.7").
The driest month (with the least rainfall) is August (1.73").
Average rainfall days in May
Hyannis Port, MA
- Average rainfall days in May: 14.9 days
The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is February (10.3 days).
Average snowfall in May
Hyannis Port, MA
- Average snowfall in May: 0"
The month with the highest snowfall is March (1.93").
The months with the least snowfall are May, June, July, August, September, October and November (0").
Average snowfall days in May
Hyannis Port, MA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (7.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Hyannis Port, MA
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in May
Hyannis Port, MA
- Average sunshine days in May: 14.3 days
The month with the most sunshine days is August (17.7 days).
The month with the least sunshine days is February (11.4 days).
Average UV index in May
Hyannis Port, MA
- Average UV index in May: 4
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Hyannis Port, MA
- Average cloud cover in May: 43
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
Hyannis Port, MA
- 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).
Hyannis Port, Massachusetts, USA
Weather forecast for your location
2. Allow the app to use your location
