August weather forecastNorthborough, MA
August
Weather in August
August, the last month of the summer in Northborough, is another warm month, with an average temperature ranging between min 61.7°F (16.5°C) and max 80.4°F (26.9°C).Temperature
August's onset records a minor alteration in the average high-temperature to a still moderately hot 80.4°F (26.9°C) from July's 82°F (27.8°C). Throughout the month of August, Northborough reports a steady low-temperature average of 61.7°F (16.5°C).Humidity
In August, the average relative humidity is 75%.Rainfall
In August, the rain falls for 13.7 days. Throughout August, 2.13" (54mm) of precipitation is accumulated. In Northborough, during the entire year, the rain falls for 140.8 days and collects up to 26.34" (669mm) of precipitation.Snowfall
In Northborough, snow does not fall in June through September.Daylight
The average length of the day in August is 13h and 50min.On the first day of the month, sunrise is at 5:40 am and sunset at 8:05 pm. On the last day of August, sunrise is at 6:11 am and sunset at 7:21 pm EDT.
Sunshine
With an average of 10.3h of sunshine, August has the most sunshine of the year.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 6 in August interprets into the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Northborough, MA
- Average high temperature in August: 80.4°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in August: 61.7°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in August
Northborough, 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 (29.92"Hg).
Average wind speed in August
Northborough, MA
- Average wind speed in August: 5.5mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in August
Northborough, MA
- Average humidity in August: 75%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).
Average rainfall in August
Northborough, MA
- Average rainfall in August: 2.13"
The wettest months (with the highest rainfall) are March, November and December (2.56").
The driest month (with the least rainfall) is September (1.34").
Average rainfall days in August
Northborough, MA
- Average rainfall days in August: 13.7 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in August
Northborough, MA
- Average snowfall in August: 0"
The month with the highest snowfall is February (5.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Northborough, MA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Northborough, 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 6min).
- Average sunshine in August: 10h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in August
Northborough, MA
- Average sunshine days in August: 15.6 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is April (13.4 days).
Average UV index in August
Northborough, 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
Northborough, MA
- Average cloud cover in August: 34
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in August
Northborough, MA
- Average visibility in August: 5mi
The months with the highest visibility are January, March, April, May, October, November and December (6mi).
The months with the lowest visibility are February, June, July, August and September (5mi).





