August weather forecast
Frederick, CO

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Weather in August

August, the last month of the summer in Frederick, is another hot month, with an average temperature ranging between min 59.9°F (15.5°C) and max 88.2°F (31.2°C).

Temperature

With the onset of August, the average high-temperature registers at a still hot 88.2°F (31.2°C), subtly different from July's 89.2°F (31.8°C). Following the sharp contrast to daytime warmth, an average nighttime temperature of 59.9°F (15.5°C) gets registered during August.

Heat index

For most parts of August, the heat index is calculated to be a hot 87.8°F (31°C). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.
The metrics for the heat index are tailored for both shady environments and light winds. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.

Humidity

With an average relative humidity of 40%, August is the least humid month.

Rainfall

In Frederick, in August, during 9.8 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. Throughout the year, in Frederick, there are 87 rainfall days, and 9.88" (251mm) of precipitation is accumulated.

Snowfall

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

Daylight

In August, the average length of the day in Frederick is 13h and 43min.
On the first day of the month, sunrise is at 5:58 am and sunset at 8:13 pm. On the last day of August, in Frederick, sunrise is at 6:27 am and sunset at 7:32 pm MDT.

Sunshine

In August, the average sunshine is 11.7h.

UV index

The months with the highest UV index in Frederick, Colorado, are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: During August, 6 as the daily maximum UV index converts into the following advice:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. 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. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in Frederick in August?

In Frederick, 88.2°F (31.2°C) is the average high-temperature and 59.9°F (15.5°C) is the average low-temperature during August. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is calculated to be 87.8°F (31°C).

What is the least humid month in Frederick?

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

What is the average humidity in August in Frederick?

The average relative humidity in August in Frederick, Colorado, is 40%.

How much does it rain in Frederick in August?

In Frederick, Colorado, during August, the rain falls for 9.8 days and regularly aggregates up to 0.79" (20mm) of precipitation.

When it does not snow in Frederick?

June through September are months without snowfall in Frederick, Colorado.

How many hours of daylight does Frederick have in August?

In Frederick, the average day length in August is 13h and 43min.

When is the sunrise / sunset in August in Frederick?

On the first day of August in Frederick, sunrise is at 5:58 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:32 pm MDT.

How many hours of sunshine does Frederick have in August?

The average sunshine duration in August in Frederick is 11.7h.

What is the month with the highest UV index in Frederick?

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

How high is the UV index in August in Frederick?

In Frederick, Colorado, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health threat 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
Frederick, CO

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

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is December (40.8°F).

  • Average low temperature in August: 59.9°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is December (21°F).

Average pressure in August
Frederick, CO

Average pressure in August - Frederick, CO
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in August
Frederick, CO

Average wind speed in August - Frederick, CO
  • Average wind speed in August: 6mph

The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is December (5.7mph).

Average humidity in August
Frederick, CO

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

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

Average rainfall in August
Frederick, CO

Average rainfall in August - Frederick, CO
  • Average rainfall in August: 0.79"

The wettest month (with the highest rainfall) is May (1.69").
The driest months (with the least rainfall) are January and December (0.35").

Average rainfall days in August
Frederick, CO

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

The months with the highest number of rainy days are May and July (12.3 days).
The months with the least rainy days are January and December (3 days).

Average snowfall in August
Frederick, CO

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

The month with the highest snowfall is April (4.45").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Frederick, CO

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

The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in August / Average sunshine in August - Frederick, 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 24min).

  • Average sunshine in August: 11h and 4min

The months with the most sunshine are June and July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).

Average sunshine days in August
Frederick, CO

Average sunshine days in August - Frederick, CO
  • Average sunshine days in August: 13.9 days

The month with the most sunshine days is December (24.5 days).
The month with the least sunshine days is July (12.8 days).

Average UV index in August
Frederick, CO

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

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

Average cloud cover in August
Frederick, CO

Average cloud cover in August - Frederick, CO
  • Average cloud cover in August: 17

The month with the most cloud cover is April (Cloud cover 27).
The month with the least cloud cover is September (Cloud cover 15).

Average visibility in August
Frederick, CO

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

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

Frederick, Colorado, USA

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