Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
Merrimac observes an average high-temperature of a still moderately hot 79.9°F (26.6°C) in August, barely different from 80.8°F (27.1°C) in July. In August, the recorded average low-temperature is a refreshing 61.9°F (16.6°C).Humidity
In Merrimac, Massachusetts, the average relative humidity in August is 75%.Rainfall
In Merrimac, in August, during 7.8 rainfall days, 0.35" (9mm) 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
In Merrimac, snow does not fall in June through October.Daylight
In Merrimac, Massachusetts, the average length of the day in August is 13h and 53min.On the first day of August, sunrise is at 5:36 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 7:19 pm EDT.
Sunshine
August has the most sunshine of the year in Merrimac, with an average of 10.6h of sunshine.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In August, a daily UV index of 6 turns into the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Frequently asked questions
What are August temperatures in Merrimac?
What is the average humidity in August in Merrimac?
How many days does it rain in August in Merrimac?
When it does not snow in Merrimac?
How many hours of daylight does Merrimac have in August?
What time are sunrise and sunset in August in Merrimac?
What month has the most sunshine in Merrimac?
How many hours of sunshine does Merrimac have in August?
What are the months with the highest UV index in Merrimac?
What is the UV index reading in August in Merrimac?
Average temperature in August
Merrimac, MA
- Average high temperature in August: 79.9°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 August: 61.9°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 August
Merrimac, MA
- Average pressure in August: 29.97"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 August
Merrimac, MA
- Average wind speed in August: 5.7mph
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 August
Merrimac, MA
- Average humidity in August: 75%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).
Average rainfall in August
Merrimac, MA
- Average rainfall in August: 0.35"
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 August
Merrimac, MA
- Average rainfall days in August: 7.8 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 August
Merrimac, MA
- Average snowfall in August: 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 August
Merrimac, MA
- Average snowfall days in August: 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 August /
Average sunshine in August
Merrimac, MA
- Average daylight in August: 13h and 5min
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 August: 10h and 4min
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 August
Merrimac, MA
- Average sunshine days in August: 20.3 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 August
Merrimac, MA
- Average UV index in August: 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 August
Merrimac, MA
- Average cloud cover in August: 31
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 August
Merrimac, MA
- Average visibility in August: 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).
Merrimac, Massachusetts, USA
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