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 transition to May introduces an increase in the average high-temperature, shifting from a refreshing 55.4°F (13°C) in April to an enjoyable 67.1°F (19.5°C). In the month of May, the average low-temperature in North Chelmsford usually rests at a frosty 48.7°F (9.3°C).Humidity
In North Chelmsford, the average relative humidity in May is 73%.Rainfall
In North Chelmsford, during May, the rain falls for 15.6 days and regularly aggregates up to 2.01" (51mm) of precipitation. Throughout the year, there are 145.9 rainfall days, and 27.48" (698mm) of precipitation is accumulated.Snowfall
Months with snowfall in North Chelmsford are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, North Chelmsford aggregates 0.16" (4mm) of snow. In North Chelmsford, during the entire year, snow falls for 32.6 days and aggregates up to 21.61" (549mm) 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 5:38 am and sunset at 7:46 pm. On the last day of May, in North Chelmsford, sunrise is at 5:10 am and sunset at 8:16 pm EDT.
Sunshine
In North Chelmsford, the average sunshine in May is 8.5h.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: The maximum daily UV index, 5 in May, converts into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. It's recommended to limit sun exposure when its radiation is at its peak during midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for North Chelmsford in May?
What is the average humidity in May?
How much does it rain in May?
What is the last month it snows?
How many hours of daylight does North Chelmsford have in May?
When is the sunrise / sunset in May?
How long on average sun shines in May?
What is the UV index reading in May?
Average temperature in May
North Chelmsford, MA
- Average high temperature in May: 67.1°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 (32.5°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 (19.9°F).
Average pressure in May
North Chelmsford, 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
North Chelmsford, MA
- Average wind speed in May: 6.6mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in May
North Chelmsford, 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
North Chelmsford, MA
- Average rainfall in May: 2.01"
The wettest month (with the highest rainfall) is December (2.87").
The driest month (with the least rainfall) is September (1.46").
Average rainfall days in May
North Chelmsford, MA
- Average rainfall days in May: 15.6 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in May
North Chelmsford, MA
- Average snowfall in May: 0.16"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
North Chelmsford, MA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
North Chelmsford, 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 3min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in May
North Chelmsford, MA
- Average sunshine days in May: 13.6 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is May (13.6 days).
Average UV index in May
North Chelmsford, 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
North Chelmsford, MA
- Average cloud cover in May: 46
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in May
North Chelmsford, MA
- Average visibility in May: 6mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).
North Chelmsford, Massachusetts, USA
Weather forecast for your location
2. Allow the app to use your location