August weather forecast and climate
Cortez, CO

The bright and red rays of the setting sun over the scenic layout of hills and plains of Cortez, Colorado
The bright and red rays of the setting sun over the scenic layout of hills and plains of Cortez, Colorado

Weather in August

August, the last month of the summer, in Cortez, is also a moderately hot month, with average temperature fluctuating between 60.4°F (15.8°C) and 82°F (27.8°C).

Temperature

In August, the average high-temperature is almost the same as in July - a still warm 82°F (27.8°C). The average low-temperature, in Cortez, Colorado, is 60.4°F (15.8°C).

Heat index

The average heat index in August is appraised at 81.5°F (27.5°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity 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 'real feel', 'feels like', 'felt air temperature', or 'apparent temperature', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (metabolic differences, wind, pregnancy). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index 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

In Cortez, the average relative humidity is 40%.

Rainfall

In Cortez, in August, during 8.8 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. In Cortez, Colorado, during the entire year, the rain falls for 78.9 days and collects up to 9.84" (250mm) of precipitation.

Snowfall

May through September are months without snowfall in Cortez.

Daylight

In August, the average length of the day in Cortez is 13.5h.

Sunshine

In Cortez, the average sunshine in August is 11.9h.

UV index

Months with the highest UV index are June through August, with an average maximum UV index of 6. 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: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. 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 Cortez?

In Cortez, in August, the average high-temperature is 82°F (27.8°C), and the average low-temperature is 60.4°F (15.8°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that calculates temperature value influenced by the moisture in the air, in August is evaluated at 81.5°F (27.5°C).

What is the average humidity in August in Cortez?

In Cortez, the average relative humidity in August is 40%.

How many days does it rain in August in Cortez?

In Cortez, during August, the rain falls for 8.8 days and regularly aggregates up to 0.75" (19mm) of precipitation.

When it does not snow in Cortez?

May through September are months without snowfall in Cortez, Colorado.

How many hours of daylight does Cortez have in August?

In Cortez, Colorado, the average length of the day in August is 13.5h.

How long on average sun shines in August in Cortez?

The average sunshine in August is 11.9h.

When is the highest UV index in Cortez?

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

What is the UV index intensity in August in Cortez?

In Cortez, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health threat from the exposure to the Sun's UV rays.

Average temperature in August
Cortez, CO

Average temperature in August - Cortez, CO
  • Average high temperature in August: 82°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in August: 60.4°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure in August
Cortez, CO

Average pressure in August - Cortez, CO
  • Average pressure in August: 29.97"

The month with the highest atmospheric pressure is January (30.23").
The month with the lowest atmospheric pressure is June (29.87").

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Average wind speed in August
Cortez, CO

Average wind speed in August - Cortez, CO
  • Average wind speed in August: 6.5mph

The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is January (5.7mph).

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Average humidity in August
Cortez, CO

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

The month with the highest relative humidity is January (73%).
The month with the lowest relative humidity is June (26%).

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Average rainfall in August
Cortez, CO

Average rainfall in August - Cortez, CO
  • Average rainfall in August: 0.75"

The wettest months (with the highest rainfall) are January and December (1.26").
The driest month (with the least rainfall) is June (0.2").

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Average rainfall days in August
Cortez, CO

Average rainfall days in August - Cortez, CO
  • Average rainfall days in August: 8.8 days

The month with the highest number of rainy days is July (9.6 days).
The month with the least rainy days is June (2.8 days).

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Average snowfall in August
Cortez, CO

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

The month with the highest snowfall is January (8.11").
Months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Cortez, CO

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

Months with the highest number of snowfall days are January and December (8.5 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Cortez, CO
  • Average daylight in August: 13.5h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in August: 11.9h

The month with the most sunshine is June (Average sunshine: 12.1h).
Months with the least sunshine are January and December (Average sunshine: 6.5).

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Average sunshine days in August
Cortez, CO

Average sunshine days in August - Cortez, CO
  • Average sunshine days in August: 19.1 days

The month with the most sunshine days is June (26.2 days).
The month with the least sunshine days is February (17.6 days).

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Average UV index in August
Cortez, CO

Average UV index in August - Cortez, 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
Cortez, CO

Average cloud cover in August - Cortez, CO
  • Average cloud cover in August: 12

Months with the most cloud cover are January and December (Cloud cover 27).
The month with the least cloud cover is June (Cloud cover 9).

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Average visibility in August
Cortez, CO

Average visibility in August - Cortez, 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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