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
The average high-temperature for August is a still warm 79°F (26.1°C), closely aligning with the temperature of the preceding month. Throughout August, the average low-temperature in Jefferson records at a refreshing 60.4°F (15.8°C).Humidity
In Jefferson, the average relative humidity in August is 77%.Rainfall
In August, the rain falls for 14.6 days. Throughout August, 2.4" (61mm) of precipitation is accumulated. In Jefferson, during the entire year, the rain falls for 146.1 days and collects up to 28.94" (735mm) of precipitation.Snowfall
In Jefferson, snow does not fall in June through September.Daylight
In Jefferson, the average length of the day in August is 13h and 51min.On the first day of August in Jefferson, sunrise is at 5:40 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 7:22 pm EDT.
Sunshine
July and August, with an average of 10h of sunshine, are months with the most sunshine in Jefferson.UV index
The months with the highest UV index in Jefferson, Massachusetts, 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 unsafe exposure to UV radiation for average individuals.Note: In August, the maximum UV index of 6 suggests these recommendations:
Deflect overexposure. Sun protection 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Frequently asked questions
What are August temperatures in Jefferson?
What is the average humidity in August in Jefferson?
How much does it rain in Jefferson in August?
When it does not snow in Jefferson?
What is the average length of the day in August in Jefferson?
When are sunrise and sunset in August in Jefferson?
What are the months with the most sunshine in Jefferson?
How long on average sun shines in August in Jefferson?
What is the month with the highest UV index in Jefferson?
What is the UV index intensity in August in Jefferson?
Average temperature in August
Jefferson, MA
- Average high temperature in August: 79°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30.9°F).
- Average low temperature in August: 60.4°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in August
Jefferson, 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
Jefferson, MA
- Average wind speed in August: 5.6mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in August
Jefferson, MA
- Average humidity in August: 77%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (72%).
Average rainfall in August
Jefferson, MA
- Average rainfall in August: 2.4"
The wettest month (with the highest rainfall) is December (2.76").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in August
Jefferson, MA
- Average rainfall days in August: 14.6 days
The month with the highest number of rainy days is May (16.3 days).
The months with the least rainy days are January and February (6.8 days).
Average snowfall in August
Jefferson, MA
- Average snowfall in August: 0"
The month with the highest snowfall is February (6.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Jefferson, MA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Jefferson, MA
- Average daylight in August: 13h and 5min
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 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in August
Jefferson, MA
- Average sunshine days in August: 14.4 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is June (12.8 days).
Average UV index in August
Jefferson, 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
Jefferson, MA
- Average cloud cover in August: 36
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in August
Jefferson, MA
- Average visibility in August: 5mi
The months with the highest visibility are April, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and October (5mi).
Jefferson, Massachusetts, USA
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