August weather forecastGroveton, NH

August

Weather in August

The last month of the summer, August, is also a moderately hot month in Groveton, New Hampshire, with an average temperature varying between 73.8°F (23.2°C) and 51.4°F (10.8°C).

Temperature

The average high-temperature for August is a still warm 73.8°F (23.2°C), closely aligning with the temperature of the preceding month. Despite the drastic temperature difference, Groveton records an average nighttime low of 51.4°F (10.8°C) throughout August.

Humidity

The average relative humidity in August is 80%.

Rainfall

August is the month with the least rainfall. Rain falls for 15.7 days and accumulates 1.97" (50mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In August, the average length of the day is 13h and 59min.
On the first day of August, sunrise is at 5:33 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 7:24 pm EDT.

Sunshine

With an average of 9.5h of sunshine, August has the most sunshine of the year.

UV index

The average daily maximum UV index in August is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In August, a regular UV index of 4 translates into these guidelines:
Take precautions - Protection against sun damage is advised. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in August, in Groveton, records 73.8°F (23.2°C), while the low-temperature is 51.4°F (10.8°C).

In Groveton, the average relative humidity in August is 80%.

The month with the least rainfall in Groveton, New Hampshire, is August, when the rain falls for 15.7 days and typically collects 1.97" (50mm) of precipitation.

In August, the rain falls for 15.7 days. Throughout August, 1.97" (50mm) of precipitation is accumulated.

June through September are months without snowfall.

In Groveton, the average day length in August is 13h and 59min.

In August, on the first day of the month, sunrise is at 5:33 am and sunset at 8:11 pm. On the last day of the month, in Groveton, New Hampshire, sunrise is at 6:08 am and sunset at 7:24 pm EDT.

With an average of 9.5h of sunshine, August has the most sunshine of the year in Groveton.

In August, the average sunshine duration in Groveton, New Hampshire, is 9.5h.

The average daily maximum UV index in August in Groveton, New Hampshire, is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Groveton, NH

  • Average high temperature in August: 73.8°F

The warmest month (with the highest average high temperature) is July (75.6°F).
The month with the lowest average high temperature is January (22.5°F).

  • Average low temperature in August: 51.4°F

The month with the highest average low temperature is July (53.2°F).
The coldest month (with the lowest average low temperature) is January (9°F).

Average pressure in August
Groveton, NH

  • Average pressure in August: 29.96"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in August
Groveton, NH

  • Average wind speed in August: 4.7mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in August
Groveton, NH

  • Average humidity in August: 80%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is May (76%).

Average rainfall in August
Groveton, NH

  • Average rainfall in August: 1.97"

The wettest month (with the highest rainfall) is October (2.95").
The driest month (with the least rainfall) is August (1.97").

Average rainfall days in August
Groveton, NH

  • Average rainfall days in August: 15.7 days

The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (5 days).

Average snowfall in August
Groveton, NH

  • Average snowfall in August: 0"

The month with the highest snowfall is February (13.43").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Groveton, NH

  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (21.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Groveton, NH

  • Average daylight in August: 14h and 0min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in August: 9h and 30min

The month with the most sunshine is August (Average sunshine: 9h and 30min).
The months with the least sunshine are January and February (Average sunshine: 2h and 36min).

Average sunshine days in August
Groveton, NH

  • Average sunshine days in August: 12.4 days

The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is February (6.3 days).

Average UV index in August
Groveton, NH

  • Average UV index in August: 4

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).

Average cloud cover in August
Groveton, NH

  • Average cloud cover in August: 43

The month with the most cloud cover is February (Cloud cover 76).
The month with the least cloud cover is July (Cloud cover 42).

Average visibility in August
Groveton, NH

  • Average visibility in August: 4mi

The months with the highest visibility are May, June, July and November (5mi).
The months with the lowest visibility are January, February, March, April, August, September, October and December (4mi).