May weather forecastOrleans, MA
May
Weather in May
The last month of the spring, May, is a cool month in Orleans, Massachusetts, with an average temperature fluctuating between 50.4°F (10.2°C) and 54.5°F (12.5°C).Temperature
As April gives way to May, the average high-temperature displays a slight ascent, adjusting from a chilly 46.9°F (8.3°C) to a cool 54.5°F (12.5°C). The nighttime temperature demonstrates a marginal decline, averaging at a still fresh 50.4°F (10.2°C) during May.Humidity
In May, the average relative humidity is 84%.Rainfall
In Orleans, in May, it is raining for 7.4 days, with typically 0.39" (10mm) of accumulated precipitation. Throughout the year, there are 78.2 rainfall days, and 5.75" (146mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Orleans, the average length of the day in May is 14h and 34min.On the first day of the month, sunrise is at 5:35 am and sunset at 7:38 pm. On the last day of May, sunrise is at 5:07 am and sunset at 8:07 pm EDT.
Sunshine
The average sunshine in May is 8.4h.UV index
In May, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In May, a regular UV index of 4 translates into these guidelines:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Orleans, MA
- Average high temperature in May: 54.5°F
The warmest month (with the highest average high temperature) is August (71.4°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in May: 50.4°F
The month with the highest average low temperature is August (67.8°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in May
Orleans, 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
Orleans, MA
- Average wind speed in May: 13mph
The windiest month (with the highest average wind speed) is January (18.3mph).
The calmest month (with the lowest average wind speed) is August (11.4mph).
Average humidity in May
Orleans, MA
- Average humidity in May: 84%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is November (74%).
Average rainfall in May
Orleans, MA
- Average rainfall in May: 0.39"
The wettest month (with the highest rainfall) is October (0.87").
The driest months (with the least rainfall) are July and August (0.28").
Average rainfall days in May
Orleans, MA
- Average rainfall days in May: 7.4 days
The month with the highest number of rainy days is April (8.2 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in May
Orleans, MA
- Average snowfall in May: 0"
The month with the highest snowfall is December (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Orleans, MA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (3.7 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
Orleans, MA
- Average daylight in May: 14h and 36min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 8h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in May
Orleans, MA
- Average sunshine days in May: 20 days
The month with the most sunshine days is September (23.4 days).
The month with the least sunshine days is February (19.8 days).
Average UV index in May
Orleans, 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
Orleans, MA
- Average cloud cover in May: 44
The month with the most cloud cover is December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
Orleans, 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).
