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
The onset of May brings a rise in the average high-temperature, elevating from a refreshing 55.9°F (13.3°C) in April to an enjoyable 67.5°F (19.7°C). Littleton Common observes an average nighttime temperature of 48.7°F (9.3°C) during May.Humidity
In Littleton Common, the average relative humidity in May is 73%.Rainfall
In Littleton Common, in May, during 15.1 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. In Littleton Common, during the entire year, the rain falls for 140.4 days and collects up to 27.13" (689mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in Littleton Common. During 0.1 snowfall days, in May, Littleton Common aggregates 0.16" (4mm) of snow. In Littleton Common, during the entire year, snow falls for 35.1 days and aggregates up to 24.88" (632mm) of snow.Daylight
The average length of the day in May is 14h and 38min.On the first day of the month, sunrise is at 5:39 am and sunset at 7:46 pm. On the last day of May, sunrise is at 5:11 am and sunset at 8:16 pm EDT.
Sunshine
The average sunshine in May is 8.4h.UV index
The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In May, a daily maximum UV index of 5 leads to the following instructions:
Be vigilant - Preventing sunburn is recommended. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What is the average humidity in May in Littleton Common?
How many days does it rain in May?
What is the last month it snows?
How many hours of daylight does Littleton Common have in May?
What time are sunrise and sunset in May?
How long on average sun shines in May?
What is the UV index intensity in May?
Average temperature in May
Littleton Common, MA
- Average high temperature in May: 67.5°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in May: 48.7°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in May
Littleton Common, MA
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Littleton Common, MA
- Average wind speed in May: 6.6mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in May
Littleton Common, MA
- Average humidity in May: 73%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (70%).
Average rainfall in May
Littleton Common, MA
- Average rainfall in May: 2.01"
The wettest month (with the highest rainfall) is December (2.72").
The driest month (with the least rainfall) is September (1.46").
Average rainfall days in May
Littleton Common, MA
- Average rainfall days in May: 15.1 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in May
Littleton Common, MA
- Average snowfall in May: 0.16"
The month with the highest snowfall is February (6.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Littleton Common, MA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Littleton Common, MA
- Average daylight in May: 14h and 4min
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 2min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in May
Littleton Common, MA
- Average sunshine days in May: 13.8 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is May (13.8 days).
Average UV index in May
Littleton Common, MA
- Average UV index in May: 5
The months with the highest UV index are June, 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
Littleton Common, MA
- Average cloud cover in May: 46
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
Littleton Common, MA
- Average visibility in May: 6mi
The months with the highest visibility are January, March, April, May, July, August, October, November and December (6mi).
The months with the lowest visibility are February, June and September (5mi).
Littleton Common, Massachusetts, USA
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