June weather forecastChelmsford, MA

June

Weather in June

June, the first month of the summer in Chelmsford, is a moderately hot month, with an average temperature varying between 75.2°F (24°C) and 56.3°F (13.5°C).

Temperature

The shift from May to June sees a slight increase in the average high-temperature, transitioning from an enjoyable 67.1°F (19.5°C) to a warm 75.2°F (24°C). Chelmsford experiences a steady low-temperature of 56.3°F (13.5°C) throughout June.

Humidity

The average relative humidity in June in Chelmsford, Massachusetts, is 74%.

Rainfall

In Chelmsford, during June, the rain falls for 15.1 days and regularly aggregates up to 2.28" (58mm) of precipitation. In Chelmsford, during the entire year, the rain falls for 145.9 days and collects up to 27.48" (698mm) of precipitation.

Snowfall

In Chelmsford, snow does not fall in June through September.

Daylight

With an average of 15h and 18min of daylight, June has the longest days of the year.
On the first day of June, sunrise is at 5:09 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 5:11 am and sunset at 8:27 pm EDT.

Sunshine

In Chelmsford, the average sunshine in June is 9.2h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In June, the average maximum UV index of 6 translates into the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

June temperatures vary between a high-temperature of 75.2°F (24°C) and a low-temperature of 56.3°F (13.5°C).

The average relative humidity in June is 74%.

In June, the rain falls for 15.1 days. Throughout June, 2.28" (58mm) of precipitation is accumulated.

In Chelmsford, snow does not fall in June through September.

In June, it doesn't snow. May is the latest month when it typically snows.

June has the longest days of the year, with an average of 15h and 18min of daylight.

In June, the average day length is 15h and 16min.

In June, on the first day of the month, sunrise is at 5:09 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 5:11 am and sunset at 8:27 pm EDT.

In June, the average sunshine duration is 9.2h.

The months with the highest UV index in Chelmsford are June through August, with an average maximum UV index of 6.

The average daily maximum UV index in June is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Chelmsford, MA

  • Average high temperature in June: 75.2°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 June: 56.3°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 June
Chelmsford, MA

  • Average pressure in June: 29.92"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 June
Chelmsford, MA

  • Average wind speed in June: 6.1mph

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 June
Chelmsford, MA

  • Average humidity in June: 74%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (70%).

Average rainfall in June
Chelmsford, MA

  • Average rainfall in June: 2.28"

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 June
Chelmsford, MA

  • Average rainfall days in June: 15.1 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 June
Chelmsford, MA

  • Average snowfall in June: 0"

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 June
Chelmsford, MA

  • Average snowfall days in June: 0 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 June /
Average sunshine in June
Chelmsford, MA

  • Average daylight in June: 15h and 18min

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 June: 9h and 12min

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 June
Chelmsford, MA

  • Average sunshine days in June: 13.8 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 June
Chelmsford, MA

  • Average UV index in June: 6

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 June
Chelmsford, MA

  • Average cloud cover in June: 41

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 June
Chelmsford, MA

  • Average visibility in June: 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).