May weather forecast
Concord, MA

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Weather in May

The last month of the spring, May, is a comfortable month in Concord, Massachusetts, with an average temperature fluctuating between 49.1°F (9.5°C) and 67.1°F (19.5°C).

Temperature

The rise of average high-temperatures is seen in May, with an increase from a refreshing 55.9°F (13.3°C) in April to a comfortable 67.1°F (19.5°C). May's nights in Concord, Massachusetts, observe an average temperature of 49.1°F (9.5°C).

Humidity

In Concord, the average relative humidity in May is 72%.

Rainfall

In Concord, in May, during 12.8 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. Throughout the year, there are 116.6 rainfall days, and 13.7" (348mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Concord are January through May, October through December. May is the last month it regularly snows in Concord. During 0.1 snowfall days, in May, Concord aggregates 0.04" (1mm) of snow. In Concord, during the entire year, snow falls for 24.3 days and aggregates up to 8.9" (226mm) of snow.

Daylight

The average length of the day in May in Concord is 14h and 37min.
On the first day of the month, sunrise is at 5:39 am and sunset at 7:45 pm. On the last day of May, sunrise is at 5:10 am and sunset at 8:15 pm EDT.

Sunshine

In Concord, the average sunshine in May is 8.4h.

UV index

In Concord, Massachusetts, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 5 during May translates into these guidelines:
Take measures. Individuals with light skin might experience burns in under 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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Frequently asked questions

What are the temperatures in Concord in May?

During May, Concord experiences an average high-temperature of 67.1°F (19.5°C) and a low-temperature of 49.1°F (9.5°C).

What is the average humidity in May in Concord?

The average relative humidity in May in Concord is 72%.

How many days does it rain in May in Concord?

In Concord, during May, the rain falls for 12.8 days and regularly aggregates up to 1.06" (27mm) of precipitation.

What is the last month it snows in Concord?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Concord aggregates 0.04" (1mm) of snow.

What is the average length of the day in May in Concord?

In May, the average day length in Concord is 14h and 37min.

When is the sunrise / sunset in May in Concord?

On the first day of May in Concord, Massachusetts, sunrise is at 5:39 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 5:10 am and sunset at 8:15 pm EDT.

How long on average sun shines in May in Concord?

In Concord, the average sunshine duration in May is 8.4h.

How high is the UV index in May in Concord?

In May, the average daily maximum UV index in Concord, Massachusetts, is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Concord, MA

Average temperature in May - Concord, MA
  • Average high temperature in May: 67.1°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in May: 49.1°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

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Average pressure in May
Concord, MA

Average pressure in May - Concord, MA
  • Average pressure in May: 30.01"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).

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Average wind speed in May
Concord, MA

Average wind speed in May - Concord, MA
  • Average wind speed in May: 6.8mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in May
Concord, MA

Average humidity in May - Concord, MA
  • Average humidity in May: 72%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (70%).

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Average rainfall in May
Concord, MA

Average rainfall in May - Concord, MA
  • Average rainfall in May: 1.06"

The wettest month (with the highest rainfall) is October (1.42").
The driest month (with the least rainfall) is September (0.71").

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Average rainfall days in May
Concord, MA

Average rainfall days in May - Concord, MA
  • Average rainfall days in May: 12.8 days

The month with the highest number of rainy days is May (12.8 days).
The month with the least rainy days is January (5.5 days).

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Average snowfall in May
Concord, MA

Average snowfall in May - Concord, MA
  • Average snowfall in May: 0.04"

The month with the highest snowfall is December (2.24").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Concord, MA

Average snowfall days in May - Concord, MA
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Concord, MA

Average daylight in May / Average sunshine in May - Concord, 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 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).

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Average sunshine days in May
Concord, MA

Average sunshine days in May - Concord, MA
  • Average sunshine days in May: 16 days

The month with the most sunshine days is January (20.3 days).
The months with the least sunshine days are April and June (15.8 days).

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Average UV index in May
Concord, MA

Average UV index in May - Concord, MA
  • Average UV index in May: 5

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in May
Concord, MA

Average cloud cover in May - Concord, 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).

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Average visibility in May
Concord, MA

Average visibility in May - Concord, 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).

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Concord, Massachusetts, USA

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