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 sea temperature 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's arrival in Rockland, Maine, signals a modest temperature shift, moving from a frosty 45.9°F (7.7°C) in April to a fresh 54.1°F (12.3°C). In Rockland, the month of May records an average minimum temperature of 46.2°F (7.9°C), a slight dip from the daily highs.Humidity
In Rockland, the average relative humidity in May is 83%.Rainfall
In Rockland, in May, during 15.3 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. Throughout the year, in Rockland, there are 144.8 rainfall days, and 30.63" (778mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Ocean temperature
In May, the average ocean temperature is 45.1°F (7.3°C).Note: Swimming in 45.1°F (7.3°C) is deemed hazardous. Exposure to temperatures below 50°F (10°C) leads to immediate severe cold shock and hyperventilation.
Daylight
In May, the average length of the day is 14h and 47min.On the first day of May, sunrise is at 5:26 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 4:56 am and sunset at 8:12 pm EDT.
Sunshine
The average sunshine in May is 8.1h.UV index
In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In May, the maximum UV index of 4 suggests these recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's radiation is especially intense around midday; try to stay in shade during this period. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Frequently asked questions
What are the temperatures in Rockland in May?
What is the average humidity in May in Rockland?
How many days does it rain in May in Rockland?
When it does not snow in Rockland?
Does it snow in Rockland in May?
What is the ocean temperature in May in Rockland?
What is the average length of the day in May in Rockland?
When is the sunrise / sunset in May in Rockland?
How long on average sun shines in May in Rockland?
What is the UV index intensity in May in Rockland?
Average temperature in May
Rockland, ME
- Average high temperature in May: 54.1°F
The warmest month (with the highest average high temperature) is August (68.7°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in May: 46.2°F
The month with the highest average low temperature is August (60.6°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in May
Rockland, ME
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Rockland, ME
- Average wind speed in May: 10mph
The windiest month (with the highest average wind speed) is January (14.9mph).
The calmest months (with the lowest average wind speed) are July and August (8.2mph).
Average humidity in May
Rockland, ME
- Average humidity in May: 83%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is November (75%).
Average rainfall in May
Rockland, ME
- Average rainfall in May: 2.36"
The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in May
Rockland, ME
- Average rainfall days in May: 15.3 days
The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in May
Rockland, ME
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.83").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Rockland, ME
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in May
Rockland, ME
- Average sea temperature in May: 45.1°F
The best month for swimming (with the highest average sea temperature) is August (60.4°F).
The coldest month (with the lowest average sea temperature) is March (37.8°F).
Average daylight in May /
Average sunshine in May
Rockland, ME
- Average daylight in May: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in May: 8h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 30min).
Average sunshine days in May
Rockland, ME
- Average sunshine days in May: 13.8 days
The month with the most sunshine days is September (18 days).
The month with the least sunshine days is April (11.5 days).
Average UV index in May
Rockland, ME
- 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, March, November and December (UV index 2).
Average cloud cover in May
Rockland, ME
- Average cloud cover in May: 47
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in May
Rockland, ME
- 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).
Rockland, Maine, USA
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