August weather forecastMattapan, MA
August
Weather in August
The last month of the summer, August, is another warm month in Mattapan, Massachusetts, with an average temperature varying between 63.1°F (17.3°C) and 80.4°F (26.9°C).Temperature
A minor adjustment in Mattapan's average high-temperature is noted with the start of August, touching a still moderately hot 80.4°F (26.9°C) from July's 81.3°F (27.4°C). The mean low-temperature during August nights in Mattapan is a comfortable 63.1°F (17.3°C).Humidity
In August, the average relative humidity is 74%.Rainfall
In Mattapan, in August, during 13.6 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. In Mattapan, during the entire year, the rain falls for 147.4 days and collects up to 28.39" (721mm) of precipitation.Snowfall
In Mattapan, snow does not fall in May through September.Daylight
The average length of the day in August is 13h and 50min.On the first day of August, sunrise is at 5:37 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 7:19 pm EDT.
Sunshine
The month with the most sunshine is August, with an average of 10.5h of sunshine.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 6 during August leads to these advisories:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Mattapan, MA
- Average high temperature in August: 80.4°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in August: 63.1°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in August
Mattapan, MA
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Mattapan, MA
- Average wind speed in August: 6mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in August
Mattapan, MA
- Average humidity in August: 74%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (70%).
Average rainfall in August
Mattapan, MA
- Average rainfall in August: 1.93"
The wettest month (with the highest rainfall) is December (2.95").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in August
Mattapan, MA
- Average rainfall days in August: 13.6 days
The month with the highest number of rainy days is July (15.8 days).
The months with the least rainy days are January and February (7.8 days).
Average snowfall in August
Mattapan, MA
- Average snowfall in August: 0"
The month with the highest snowfall is March (5.24").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Mattapan, MA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Mattapan, MA
- Average daylight in August: 13h and 48min
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 12min).
- Average sunshine in August: 10h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in August
Mattapan, MA
- Average sunshine days in August: 15.5 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is April (13.2 days).
Average UV index in August
Mattapan, 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
Mattapan, MA
- Average cloud cover in August: 33
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in August
Mattapan, 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).
