August weather forecast
Grant, CO

Share

Weather in August

August, the last month of the summer in Grant, is another pleasant month, with an average temperature fluctuating between 68.7°F (20.4°C) and 42.4°F (5.8°C).

Temperature

The onset of August notes an average high-temperature of a still pleasant 68.7°F (20.4°C), subtly shifted from July's 70°F (21.1°C). A considerable shift from the daytime highs is observed during August nights, with an average low of 42.4°F (5.8°C).

Humidity

In Grant, the average relative humidity in August is 55%.

Rainfall

In Grant, during August, the rain falls for 20.5 days and regularly aggregates up to 2.28" (58mm) of precipitation. Throughout the year, there are 138.3 rainfall days, and 23.07" (586mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Grant are January through December. In Grant, in August, snow falls for 0.5 days, with typically accumulated 0.16" (4mm) of snow. In Grant, during the entire year, snow falls for 127.6 days and aggregates up to 93.94" (2386mm) of snow.

Daylight

In Grant, the average length of the day in August is 13h and 40min.
On the first day of the month, sunrise is at 6:03 am and sunset at 8:14 pm. On the last day of August, sunrise is at 6:30 am and sunset at 7:34 pm MDT.

Sunshine

With an average of 11.6h of sunshine, August has the most sunshine of the year.

UV index

June through August, with an average maximum UV index of 4, are months with the highest UV index. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: In August, the maximum UV index of 4 suggests these recommendations:
Adopt protective measures - It is advised to guard against sun damage. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Updated: Aug 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures?

The average high-temperature, in August, in Grant, is 68.7°F (20.4°C), while the average low-temperature is 42.4°F (5.8°C).

What is the average humidity in August?

The average relative humidity in August is 55%.

How much does it rain in August?

In August, the rain falls for 20.5 days. Throughout August, 2.28" (58mm) of precipitation is accumulated.

How many days does it snow in August?

In Grant, during August, snow falls for 0.5 days and regularly aggregates up to 0.16" (4mm) of snow.

What is the average length of the day in August?

In August, the average day length is 13h and 40min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:03 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:34 pm MDT.

What month has the most sunshine?

With an average of 11.6h of sunshine, August has the most sunshine of the year.

How long on average sun shines in August?

In Grant, the average sunshine duration in August is 11.6h.

What is the month with the highest UV index?

June through August, with an average maximum UV index of 4, are months with the highest UV index.

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 moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Grant, CO

Average temperature in August - Grant, CO
  • Average high temperature in August: 68.7°F

The warmest month (with the highest average high temperature) is July (70°F).
The month with the lowest average high temperature is December (26.8°F).

  • Average low temperature in August: 42.4°F

The month with the highest average low temperature is July (44.2°F).
The coldest months (with the lowest average low temperature) are January and December (8.1°F).

Average pressure in August
Grant, CO

Average pressure in August - Grant, CO
  • Average pressure in August: 30.04"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are April and May (29.93"Hg).

Average wind speed in August
Grant, CO

Average wind speed in August - Grant, CO
  • Average wind speed in August: 5mph

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

Average humidity in August
Grant, CO

Average humidity in August - Grant, CO
  • Average humidity in August: 55%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is June (51%).

Average rainfall in August
Grant, CO

Average rainfall in August - Grant, CO
  • Average rainfall in August: 2.28"

The wettest month (with the highest rainfall) is May (3.7").
The driest month (with the least rainfall) is December (0.79").

Average rainfall days in August
Grant, CO

Average rainfall days in August - Grant, CO
  • Average rainfall days in August: 20.5 days

The month with the highest number of rainy days is July (23.9 days).
The month with the least rainy days is November (3.4 days).

Average snowfall in August
Grant, CO

Average snowfall in August - Grant, CO
  • Average snowfall in August: 0.16"

The month with the highest snowfall is May (17.48").
The month with the least snowfall is July (0.12").

Average snowfall days in August
Grant, CO

Average snowfall days in August - Grant, CO
  • Average snowfall days in August: 0.5 days

The month with the highest number of snowfall days is April (18.5 days).
The months with the least snowfall days are July and August (0.5 days).

Average daylight in August /
Average sunshine in August
Grant, CO

Average daylight in August / Average sunshine in August - Grant, CO
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in August: 11h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).

Average sunshine days in August
Grant, CO

Average sunshine days in August - Grant, CO
  • Average sunshine days in August: 6.9 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (4.1 days).

Average UV index in August
Grant, CO

Average UV index in August - Grant, CO
  • Average UV index in August: 4

The months with the highest UV index are June, July and August (UV index 4).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in August
Grant, CO

Average cloud cover in August - Grant, CO
  • Average cloud cover in August: 21

The month with the most cloud cover is February (Cloud cover 38).
The months with the least cloud cover are June and September (Cloud cover 18).

Average visibility in August
Grant, CO

Average visibility in August - Grant, CO
  • Average visibility in August: 6mi

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

Grant, Colorado, USA

Weather forecast for your location

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