August weather forecast
Hayden, CO

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Weather in August

The last month of the summer, August, is another warm month in Hayden, Colorado, with an average temperature fluctuating between 48.7°F (9.3°C) and 78.1°F (25.6°C).

Temperature

August's climate shows a minor adjustment in average high-temperatures to a still moderately hot 78.1°F (25.6°C) from July's 79.3°F (26.3°C). Hayden experiences a significant reduction from daytime highs with an average low-temperature of 48.7°F (9.3°C) in August.

Humidity

August is the least humid month, with an average relative humidity of 45%.

Rainfall

August is the month with the least rainfall. Rain falls for 9.2 days and accumulates 0.55" (14mm) of precipitation.

Snowfall

July and August are months without snowfall.

Daylight

In August, the average length of the day in Hayden is 13h and 44min.
On the first day of the month, sunrise is at 6:07 am and sunset at 8:23 pm. On the last day of August, sunrise is at 6:36 am and sunset at 7:42 pm MDT.

Sunshine

In Hayden, the average sunshine in August is 11.8h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: During August, 5 as the daily maximum UV index converts into the following advice:
Adopt protective measures - Suggestions to resist sunburn are offered. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
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Frequently asked questions

What is the temperature in August in Hayden?

In August, the average high-temperature and low-temperature in Hayden, Colorado, are 78.1°F (25.6°C) and 48.7°F (9.3°C) respectively.

What is the least humid month in Hayden?

The least humid month in Hayden is August, with an average relative humidity of 45%.

What is the average humidity in August in Hayden?

The average relative humidity in August is 45%.

What is the driest month in Hayden?

The month with the least rainfall is August, when the rain falls for 9.2 days and typically collects 0.55" (14mm) of precipitation.

How many days does it rain in August in Hayden?

In August, in Hayden, Colorado, the rain falls for 9.2 days. Throughout August, 0.55" (14mm) of precipitation is accumulated.

When it does not snow in Hayden?

In Hayden, Colorado, snow does not fall in July and August.

Does it snow in Hayden in August?

In Hayden, Colorado, in August, it doesn't snow. In September, it regularly snows.

How many hours of daylight does Hayden have in August?

The average day length in August in Hayden, Colorado, is 13h and 44min.

When are sunrise and sunset in August in Hayden?

In August, on the first day of the month, sunrise is at 6:07 am and sunset at 8:23 pm. On the last day of the month, in Hayden, Colorado, sunrise is at 6:36 am and sunset at 7:42 pm MDT.

How many hours of sunshine does Hayden have in August?

In Hayden, the average sunshine duration in August is 11.8h.

What are the months with the highest UV index in Hayden?

The months with the highest UV index in Hayden are June through August, with an average maximum UV index of 5.

How high is the UV index in August in Hayden?

In August, the average daily maximum UV index in Hayden, Colorado, is 5. 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
Hayden, CO

Average temperature in August - Hayden, CO
  • Average high temperature in August: 78.1°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (27.5°F).

  • Average low temperature in August: 48.7°F

The month with the highest average low temperature is July (49.6°F).
The coldest month (with the lowest average low temperature) is January (9°F).

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Average pressure in August
Hayden, CO

Average pressure in August - Hayden, CO
  • Average pressure in August: 30.02"Hg

The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is May (29.92"Hg).

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Average wind speed in August
Hayden, CO

Average wind speed in August - Hayden, CO
  • Average wind speed in August: 6.6mph

The windiest months (with the highest average wind speed) are April and June (7.1mph).
The calmest month (with the lowest average wind speed) is January (5.2mph).

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Average humidity in August
Hayden, CO

Average humidity in August - Hayden, CO
  • Average humidity in August: 45%

The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is August (45%).

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Average rainfall in August
Hayden, CO

Average rainfall in August - Hayden, CO
  • Average rainfall in August: 0.55"

The wettest month (with the highest rainfall) is April (1.81").
The driest month (with the least rainfall) is August (0.55").

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Average rainfall days in August
Hayden, CO

Average rainfall days in August - Hayden, CO
  • Average rainfall days in August: 9.2 days

The months with the highest number of rainy days are April and May (12.3 days).
The month with the least rainy days is November (5 days).

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Average snowfall in August
Hayden, CO

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

The month with the highest snowfall is January (11.34").
The months with the least snowfall are July and August (0").

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Average snowfall days in August
Hayden, CO

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

The month with the highest number of snowfall days is February (16.7 days).
The months with the least snowfall days are July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 11h and 5min

The months with the most sunshine are June and July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).

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Average sunshine days in August
Hayden, CO

Average sunshine days in August - Hayden, CO
  • Average sunshine days in August: 13.8 days

The month with the most sunshine days is June (19.6 days).
The month with the least sunshine days is April (10.2 days).

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Average UV index in August
Hayden, CO

Average UV index in August - Hayden, CO
  • Average UV index in August: 5

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

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Average cloud cover in August
Hayden, CO

Average cloud cover in August - Hayden, CO
  • Average cloud cover in August: 13

The month with the most cloud cover is February (Cloud cover 44).
The months with the least cloud cover are June, August and September (Cloud cover 13).

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Average visibility in August
Hayden, CO

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

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).

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Hayden, Colorado, USA

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