August weather forecast
Greenfield, NH

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Weather in August

The last month of the summer, August, is also a moderately hot month in Greenfield, New Hampshire, with an average temperature varying between 77.7°F (25.4°C) and 58.6°F (14.8°C).

Temperature

August experiences an average high-temperature of a still moderately hot 77.7°F (25.4°C), barely different from July's 79.3°F (26.3°C). Greenfield, during the month of August, experiences an average low-temperature of 58.6°F (14.8°C).

Humidity

In August, the average relative humidity in Greenfield is 77%.

Rainfall

In Greenfield, New Hampshire, in August, it is raining for 12.9 days, with typically 1.02" (26mm) of accumulated precipitation. In Greenfield, New Hampshire, during the entire year, the rain falls for 113.8 days and collects up to 12.44" (316mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in August in Greenfield, New Hampshire, is 13h and 53min.
On the first day of the month, sunrise is at 5:39 am and sunset at 8:08 pm. On the last day of August, in Greenfield, sunrise is at 6:11 am and sunset at 7:23 pm EDT.

Sunshine

August has the most sunshine of the year in Greenfield, with an average of 10.2h of sunshine.

UV index

The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In August, the average maximum UV index of 5 translates into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature in Greenfield?

In Greenfield, in August, the average high-temperature is 77.7°F (25.4°C), and the average low-temperature is 58.6°F (14.8°C).

What is the average humidity in August in Greenfield?

The average relative humidity in August in Greenfield is 77%.

How many days does it rain in August in Greenfield?

In Greenfield, in August, during 12.9 rainfall days, 1.02" (26mm) of precipitation is typically accumulated.

When it does not snow in Greenfield?

In Greenfield, snow does not fall in June through September.

What is the average length of the day in August in Greenfield?

In Greenfield, New Hampshire, the average day length in August is 13h and 53min.

When are sunrise and sunset in August in Greenfield?

On the first day of August, sunrise is at 5:39 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 7:23 pm EDT.

What month has the most sunshine in Greenfield?

The month with the most sunshine in Greenfield, New Hampshire, is August, with an average of 10.2h of sunshine.

How long on average sun shines in August in Greenfield?

In Greenfield, New Hampshire, the average sunshine duration in August is 10.2h.

What is the UV index reading in August in Greenfield?

In August, the average daily maximum UV index in Greenfield is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Greenfield, NH

Average temperature in August - Greenfield, NH
  • Average high temperature in August: 77.7°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28.6°F).

  • Average low temperature in August: 58.6°F

The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (16°F).

Average pressure in August
Greenfield, NH

Average pressure in August - Greenfield, NH
  • Average pressure in August: 29.97"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
Greenfield, NH

Average wind speed in August - Greenfield, NH
  • Average wind speed in August: 5.3mph

The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in August
Greenfield, NH

Average humidity in August - Greenfield, NH
  • Average humidity in August: 77%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (73%).

Average rainfall in August
Greenfield, NH

Average rainfall in August - Greenfield, NH
  • Average rainfall in August: 1.02"

The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is September (0.71").

Average rainfall days in August
Greenfield, NH

Average rainfall days in August - Greenfield, NH
  • Average rainfall days in August: 12.9 days

The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is February (4.2 days).

Average snowfall in August
Greenfield, NH

Average snowfall in August - Greenfield, NH
  • Average snowfall in August: 0"

The month with the highest snowfall is November (3.9").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Greenfield, NH

Average snowfall days in August - Greenfield, NH
  • 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
Greenfield, NH

Average daylight in August / Average sunshine in August - Greenfield, NH
  • 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 1min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

Average sunshine days in August
Greenfield, NH

Average sunshine days in August - Greenfield, NH
  • Average sunshine days in August: 15.8 days

The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is June (14.3 days).

Average UV index in August
Greenfield, NH

Average UV index in August - Greenfield, NH
  • Average UV index in August: 5

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in August
Greenfield, NH

Average cloud cover in August - Greenfield, NH
  • Average cloud cover in August: 36

The month with the most cloud cover is March (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 36).

Average visibility in August
Greenfield, NH

Average visibility in August - Greenfield, NH
  • Average visibility in August: 5mi

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).

Greenfield, New Hampshire, USA

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