August weather forecast
Granby, VT

Share

Weather in August

The last month of the summer, August, is another warm month in Granby, Vermont, with an average temperature fluctuating between 52.3°F (11.3°C) and 74.7°F (23.7°C).

Temperature

Shifting into August, Granby records an average high-temperature of a still moderately hot 74.7°F (23.7°C), presenting minor fluctuations compared to the previous month. A marked difference from the daytime temperatures, Granby's nighttime temperature falls to an average low of 52.3°F (11.3°C) in August.

Humidity

The average relative humidity in August is 80%.

Rainfall

August and September are months with the least rain when the rain falls for 16.1 days and typically aggregates up to 2.13" (54mm) of rain.

Snowfall

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

Daylight

In Granby, Vermont, the average length of the day in August is 13h and 59min.
On the first day of August in Granby, sunrise is at 5:34 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 7:24 pm EDT.

Sunshine

With an average of 9.8h 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 estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 4 during August translates into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Granby in August?

Granby in August has an average high-temperature of 74.7°F (23.7°C) and an average low-temperature of 52.3°F (11.3°C).

What is the average humidity in August?

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

What is the driest month?

August and September are months with the least rain when the rain falls for 16.1 days and typically aggregates up to 2.13" (54mm) of rain.

How much does it rain in August?

In Granby, during August, the rain falls for 16.1 days and regularly aggregates up to 2.13" (54mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

How many hours of daylight does Granby have in August?

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

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:34 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 7:24 pm EDT.

What month has the most sunshine?

The month with the most sunshine is August, with an average of 9.8h of sunshine.

How many hours of sunshine does Granby have in August?

In August, the average sunshine duration is 9.8h.

What is the UV index intensity in August?

The average daily maximum UV index in August is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
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
Granby, VT

Average temperature in August - Granby, VT
  • Average high temperature in August: 74.7°F

The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is January (22.5°F).

  • Average low temperature in August: 52.3°F

The month with the highest average low temperature is July (54.3°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).

Average pressure in August
Granby, VT

Average pressure in August - Granby, VT
  • 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
Granby, VT

Average wind speed in August - Granby, VT
  • Average wind speed in August: 5mph

The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in August
Granby, VT

Average humidity in August - Granby, VT
  • Average humidity in August: 80%

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

Average rainfall in August
Granby, VT

Average rainfall in August - Granby, VT
  • Average rainfall in August: 2.13"

The wettest month (with the highest rainfall) is October (2.99").
The driest months (with the least rainfall) are August and September (2.13").

Average rainfall days in August
Granby, VT

Average rainfall days in August - Granby, VT
  • Average rainfall days in August: 16.1 days

The month with the highest number of rainy days is July (19.1 days).
The month with the least rainy days is January (6.1 days).

Average snowfall in August
Granby, VT

Average snowfall in August - Granby, VT
  • Average snowfall in August: 0"

The month with the highest snowfall is February (13.86").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Granby, VT

Average snowfall days in August - Granby, VT
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (22.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Granby, VT

Average daylight in August / Average sunshine in August - Granby, VT
  • 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 5min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).

Average sunshine days in August
Granby, VT

Average sunshine days in August - Granby, VT
  • Average sunshine days in August: 12 days

The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is February (5 days).

Average UV index in August
Granby, VT

Average UV index in August - Granby, VT
  • 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
Granby, VT

Average cloud cover in August - Granby, VT
  • Average cloud cover in August: 39

The month with the most cloud cover is February (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 39).

Average visibility in August
Granby, VT

Average visibility in August - Granby, VT
  • Average visibility in August: 5mi

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

Granby, Vermont, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location