May weather forecastGloucester, MA
May
Weather in May
May, the last month of the spring in Gloucester, is a mild month, with an average temperature fluctuating between 57.7°F (14.3°C) and 49.5°F (9.7°C).Temperature
Gloucester in May shows a temperature shift, moving from an average high of a chilly 48.7°F (9.3°C) in April to a moderate 57.7°F (14.3°C). May sees a slight dip to an average low temperature of 49.5°F (9.7°C) from the daytime highs.Humidity
In Gloucester, Massachusetts, the average relative humidity in May is 80%.Rainfall
In Gloucester, in May, it is raining for 16.3 days, with typically 2.2" (56mm) of accumulated precipitation. Throughout the year, there are 150.9 rainfall days, and 30.75" (781mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in Gloucester.Ocean temperature
In Gloucester, Massachusetts, in May, the average water temperature is 48°F (8.9°C).Note: Taking a dip in 48°F (8.9°C) can be perilous. Submersion in temperatures under 50°F (10°C) triggers severe cold shock accompanied by hyperventilation.
Daylight
In Gloucester, Massachusetts, the average length of the day in May is 14h and 38min.On the first day of the month, sunrise is at 5:36 am and sunset at 7:43 pm. On the last day of May, sunrise is at 5:07 am and sunset at 8:13 pm EDT.
Sunshine
The average sunshine in May is 8.6h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 5 in May transforms into the following instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Gloucester, MA
- Average high temperature in May: 57.7°F
The warmest month (with the highest average high temperature) is August (73°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in May: 49.5°F
The month with the highest average low temperature is August (65.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in May
Gloucester, MA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Gloucester, MA
- Average wind speed in May: 10.3mph
The windiest month (with the highest average wind speed) is January (15.2mph).
The calmest months (with the lowest average wind speed) are July and August (8.9mph).
Average humidity in May
Gloucester, MA
- Average humidity in May: 80%
The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is November (73%).
Average rainfall in May
Gloucester, MA
- Average rainfall in May: 2.2"
The wettest month (with the highest rainfall) is December (3.23").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in May
Gloucester, MA
- Average rainfall days in May: 16.3 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (8.2 days).
Average snowfall in May
Gloucester, MA
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Gloucester, MA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in May
Gloucester, MA
- Average sea temperature in May: 48°F
The best month for swimming (with the highest average sea temperature) is August (66.4°F).
The coldest month (with the lowest average sea temperature) is March (38.8°F).
Average daylight in May /
Average sunshine in May
Gloucester, MA
- Average daylight in May: 14h and 36min
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 36min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in May
Gloucester, MA
- Average sunshine days in May: 13.3 days
The months with the most sunshine days are September and November (16.7 days).
The month with the least sunshine days is February (13.1 days).
Average UV index in May
Gloucester, MA
- Average UV index in May: 5
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
Gloucester, MA
- Average cloud cover in May: 43
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
Gloucester, 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).
