August weather forecast and climate
Brighton, CO

Trees on partly frozen lake water in Barr Lake State Park in Brighton, Colorado
Trees on partly frozen lake water in Barr Lake State Park in Brighton, Colorado

Weather in August

The last month of the summer, August, is also a hot month in Brighton, Colorado, with temperature in the range of an average high of 88.2°F (31.2°C) and an average low of 60.4°F (15.8°C).

Temperature

In Brighton, the average high-temperature is practically the same as in July - a still tropical 88.2°F (31.2°C). In August, the average low-temperature is 60.4°F (15.8°C).

Heat index

The average heat index is evaluated at a tropical 88.2°F (31.2°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'apparent temperature', 'real feel', or 'felt air temperature', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like activity, pregnancy, clothing, and wind affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The least humid month is August, with an average relative humidity of 40%.

Rainfall

In Brighton, during 9.8 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. Throughout the year, in Brighton, there are 80.6 rainfall days, and 5.87" (149mm) of precipitation is accumulated.

Snowfall

In Brighton, Colorado, snow does not fall in June through September.

Daylight

The average length of the day is 13.7h.

Sunshine

The average sunshine is 11.7h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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.
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FAQ

What is the temperature in August in Brighton?

In Brighton, Colorado, in August, the average high-temperature is 88.2°F (31.2°C), and the average low-temperature is 60.4°F (15.8°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), that combines relative humidity and air temperature, in August is calculated to 88.2°F (31.2°C).

What is the least humid month in Brighton?

The least humid month in Brighton, Colorado, is August, with an average relative humidity of 40%.

What is the average humidity in August in Brighton?

In August, the average relative humidity is 40%.

How much does it rain in Brighton in August?

In August, in Brighton, the rain falls for 9.8 days. Throughout August, 0.59" (15mm) of precipitation is accumulated.

When it does not snow in Brighton?

In Brighton, Colorado, snow does not fall in June through September.

How many hours of daylight does Brighton have in August?

In Brighton, the average length of the day in August is 13.7h.

How long on average sun shines in August in Brighton?

The average sunshine in August in Brighton, Colorado, is 11.7h.

When is the highest UV index in Brighton?

Months with the highest UV index are June through August, with an average maximum UV index of 6.

What is the UV index reading in August in Brighton?

In August, the average daily maximum UV index in Brighton is 6. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to the UV radiation.

Average temperature in August
Brighton, CO

Average temperature in August - Brighton, CO
  • Average high temperature in August: 88.2°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is December (40.8°F).

  • Average low temperature in August: 60.4°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is December (21.2°F).

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Average pressure in August
Brighton, CO

Average pressure in August - Brighton, CO
  • Average pressure in August: 29.99"

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is June (29.9").

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Average wind speed in August
Brighton, CO

Average wind speed in August - Brighton, CO
  • Average wind speed in August: 6.3mph

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is December (6mph).

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Average humidity in August
Brighton, CO

Average humidity in August - Brighton, CO
  • Average humidity in August: 40%

Months with the highest relative humidity are January and February (64%).
The month with the lowest relative humidity is August (40%).

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Average rainfall in August
Brighton, CO

Average rainfall in August - Brighton, CO
  • Average rainfall in August: 0.59"

The wettest month (with the highest rainfall) is May (0.98").
The driest month (with the least rainfall) is December (0.12").

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Average rainfall days in August
Brighton, CO

Average rainfall days in August - Brighton, CO
  • Average rainfall days in August: 9.8 days

The month with the highest number of rainy days is May (10.8 days).
The month with the least rainy days is December (2.6 days).

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Average snowfall in August
Brighton, CO

Average snowfall in August - Brighton, CO
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.89").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Brighton, CO

Average snowfall days in August - Brighton, CO
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (6.8 days).
Months with the least snowfall days are June, July and August (0 days).

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

Average daylight in August / Average sunshine in August - Brighton, CO
  • Average daylight in August: 13.7h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in August: 11.7h

Months with the most sunshine are June and July (Average sunshine: 11.8h).
The month with the least sunshine is February (Average sunshine: 6.6h).

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Average sunshine days in August
Brighton, CO

Average sunshine days in August - Brighton, CO
  • Average sunshine days in August: 15.8 days

The month with the most sunshine days is December (25.8 days).
The month with the least sunshine days is July (14.8 days).

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Average UV index in August
Brighton, CO

Average UV index in August - Brighton, CO
  • Average UV index in August: 6

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in August
Brighton, CO

Average cloud cover in August - Brighton, CO
  • Average cloud cover in August: 16

The month with the most cloud cover is April (Cloud cover 28).
Months with the least cloud cover are June, August and September (Cloud cover 16).

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Average visibility in August
Brighton, CO

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

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

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