June weather forecastMerrimac, MA
June
Weather in June
The first month of the summer, June, is a moderately hot month in Merrimac, Massachusetts, with an average temperature varying between 55.9°F (13.3°C) and 73.8°F (23.2°C).Temperature
June witnesses a minor rise in the average high-temperature, transitioning from a comfortable 65.5°F (18.6°C) in May to a warm 73.8°F (23.2°C). During the month of June, the temperature generally drops to a low average of 55.9°F (13.3°C).Humidity
In June, the average relative humidity in Merrimac, Massachusetts, is 76%.Rainfall
In Merrimac, Massachusetts, in June, during 7.9 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. In Merrimac, during the entire year, the rain falls for 78.3 days and collects up to 5.43" (138mm) of precipitation.Snowfall
June through October are months without snowfall.Daylight
With an average of 15h and 18min of daylight, June has the longest days of the year.On the first day of the month, sunrise is at 5:07 am and sunset at 8:16 pm. On the last day of June, sunrise is at 5:09 am and sunset at 8:26 pm EDT.
Sunshine
In Merrimac, the average sunshine in June is 9.2h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability 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:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Merrimac, MA
- Average high temperature in June: 73.8°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in June: 55.9°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in June
Merrimac, MA
- Average pressure in June: 29.92"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in June
Merrimac, MA
- Average wind speed in June: 6.3mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in June
Merrimac, MA
- Average humidity in June: 76%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).
Average rainfall in June
Merrimac, MA
- Average rainfall in June: 0.55"
The wettest month (with the highest rainfall) is November (0.67").
The driest month (with the least rainfall) is September (0.2").
Average rainfall days in June
Merrimac, MA
- Average rainfall days in June: 7.9 days
The month with the highest number of rainy days is July (8.8 days).
The month with the least rainy days is January (3.6 days).
Average snowfall in June
Merrimac, MA
- Average snowfall in June: 0"
The month with the highest snowfall is December (0.71").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in June
Merrimac, MA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in June /
Average sunshine in June
Merrimac, 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
Merrimac, MA
- Average sunshine days in June: 19.2 days
The month with the most sunshine days is January (24.5 days).
The month with the least sunshine days is April (18.4 days).
Average UV index in June
Merrimac, 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
Merrimac, MA
- Average cloud cover in June: 41
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in June
Merrimac, MA
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





