August weather forecast
Broomfield, CO

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Neat and well-manicured lawns of a golf course in Broomfield, Colorado, colorful brown and golden trees amid classy homes during the fall
Neat and well-manicured lawns of a golf course in Broomfield, Colorado, colorful brown and golden trees amid classy homes during the fall

Weather in August

August in Broomfield generally brings warm weather, although maximum temperatures drop to 84.2°F (29°C). The month records a marginal decrease in rainfall to 0.55" (14mm), maintaining a low humidity level. Despite a drop in the daylight hours, sunshine remains constant, allowing residents to enjoy outdoor activities. The wind speed drops to 5.7mph (9.2km/h), bringing a calming effect. A UV index of 6 remains, making sun protection a priority when spending time outdoors.

Temperature

Broomfield's entry into August measures an average high-temperature of a still warm 84.2°F (29°C), closely parallel to the preceding month. Following the sharp contrast to daytime warmth, an average nighttime temperature of 57.4°F (14.1°C) gets registered during August.

Heat index

The heat index in August is computed to be 84.2°F (29°C). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.
Realize that the values for the heat index are set for shaded places and light winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.

Humidity

The least humid month is August, with an average relative humidity of 41%.

Rainfall

In Broomfield, in August, during 9.8 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. In Broomfield, during the entire year, the rain falls for 96.7 days and collects up to 5.63" (143mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In August, the average length of the day in Broomfield is 13h and 42min.
On the first day of the month, sunrise is at 5:59 am and sunset at 8:13 pm. On the last day of August, sunrise is at 6:28 am and sunset at 7:32 pm MDT.

Sunshine

June through August, with an average of 11.8h of sunshine, are months with the most sunshine.

UV index

July and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In August, the UV index of 6 transforms into the following advice:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

During August, Broomfield experiences an average high-temperature of 84.2°F (29°C) and a low-temperature of 57.4°F (14.1°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is computed to be 84.2°F (29°C).

What is the least humid month?

With an average relative humidity of 41%, August is the least humid month.

What is the average humidity in August?

The average relative humidity in August is 41%.

How many days does it rain in August?

In Broomfield, in August, during 9.8 rainfall days, 0.55" (14mm) of precipitation is typically accumulated.

When it does not snow in Broomfield?

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

What is the average length of the day in August?

The average day length in August is 13h and 42min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:59 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:32 pm MDT.

What is the month with the most sunshine?

June through August, with an average of 11.8h of sunshine, are months with the most sunshine.

How many hours of sunshine does Broomfield have in August?

In August, the average sunshine duration is 11.8h.

What is the month with the highest UV index?

The months with the highest UV index are July and August, with an average maximum UV index of 6.

What is the UV index reading in August?

In Broomfield, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe 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
Broomfield, CO

Average temperature in August - Broomfield, CO
  • Average high temperature in August: 84.2°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (39.4°F).

  • Average low temperature in August: 57.4°F

The month with the highest average low temperature is July (59°F).
The coldest months (with the lowest average low temperature) are February and December (20.7°F).

Average pressure in August
Broomfield, CO

Average pressure in August - Broomfield, CO
  • Average pressure in August: 30.01"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are April and June (29.91"Hg).

Average wind speed in August
Broomfield, CO

Average wind speed in August - Broomfield, CO
  • Average wind speed in August: 5.7mph

The windiest months (with the highest average wind speed) are March and April (6.5mph).
The calmest month (with the lowest average wind speed) is September (5.6mph).

Average humidity in August
Broomfield, CO

Average humidity in August - Broomfield, CO
  • Average humidity in August: 41%

The month with the highest relative humidity is February (67%).
The month with the lowest relative humidity is August (41%).

Average rainfall in August
Broomfield, CO

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

The wettest months (with the highest rainfall) are May and July (0.87").
The driest month (with the least rainfall) is January (0.16").

Average rainfall days in August
Broomfield, CO

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

The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is November (3.5 days).

Average snowfall in August
Broomfield, CO

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

The month with the highest snowfall is February (2.68").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Broomfield, CO

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

The month with the highest number of snowfall days is February (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Broomfield, 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 5min

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

Average sunshine days in August
Broomfield, CO

Average sunshine days in August - Broomfield, CO
  • Average sunshine days in August: 13.3 days

The month with the most sunshine days is November (23.7 days).
The month with the least sunshine days is July (10 days).

Average UV index in August
Broomfield, CO

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

The months with the highest UV index are 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
Broomfield, CO

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

The months with the most cloud cover are April and May (Cloud cover 26).
The month with the least cloud cover is September (Cloud cover 15).

Average visibility in August
Broomfield, CO

Average visibility in August - Broomfield, 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).

Broomfield, Colorado, USA

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