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
With the onset of May, Charlton's average high-temperature sees a rise, moving from April's mild 55.6°F (13.1°C) to a still refreshing 67.1°F (19.5°C). Nighttime temperatures hover around an average low of 48°F (8.9°C) in May.Humidity
In Charlton, the average relative humidity in May is 76%.Rainfall
In May, the rain falls for 16 days. Throughout May, 2.44" (62mm) of precipitation is accumulated. Throughout the year, there are 151.1 rainfall days, and 31.26" (794mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in Charlton. During 0.1 snowfall days, in May, Charlton aggregates 0.16" (4mm) of snow. In Charlton, during the entire year, snow falls for 37.7 days and aggregates up to 20.59" (523mm) of snow.Daylight
The average length of the day in May is 14h and 35min.On the first day of the month, sunrise is at 5:42 am and sunset at 7:47 pm. On the last day of May, sunrise is at 5:14 am and sunset at 8:17 pm EDT.
Sunshine
In May, the average sunshine is 8.1h.UV index
In Charlton, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In May, a daily maximum UV index of 5 leads to the following instructions:
Guard yourself - Precautionary measures against sun damage are advocated. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Enhance your sun protection with tightly woven, yet airy clothing. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Charlton?
What is the average humidity in May?
How many days does it rain in May in Charlton?
What is the last month it snows in Charlton?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How long on average sun shines in May?
How high is the UV index in May in Charlton?
Average temperature in May
Charlton, MA
- Average high temperature in May: 67.1°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in May: 48°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in May
Charlton, MA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Charlton, MA
- Average wind speed in May: 7mph
The windiest month (with the highest average wind speed) is January (9mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in May
Charlton, MA
- Average humidity in May: 76%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (72%).
Average rainfall in May
Charlton, MA
- Average rainfall in May: 2.44"
The wettest month (with the highest rainfall) is December (3.11").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in May
Charlton, MA
- Average rainfall days in May: 16 days
The month with the highest number of rainy days is July (16.3 days).
The months with the least rainy days are January and February (7.8 days).
Average snowfall in May
Charlton, MA
- Average snowfall in May: 0.16"
The months with the highest snowfall are February and March (5.08").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Charlton, MA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is March (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Charlton, MA
- Average daylight in May: 14h and 4min
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 1min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in May
Charlton, MA
- Average sunshine days in May: 13.8 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is July (12.9 days).
Average UV index in May
Charlton, MA
- Average UV index in May: 5
The months with the highest UV index are June and July (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
Charlton, MA
- Average cloud cover in May: 49
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in May
Charlton, MA
- Average visibility in May: 5mi
The months with the highest visibility are March, April, November and December (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September and October (5mi).
Charlton, Massachusetts, USA
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