August weather forecast
Lafayette, CO

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Weather in August

Amid the height of summer, August in Lafayette, Colorado exerts a significant lean towards warmer temperatures. While the temperatures recede slightly compared to July, the spirit of summer remains rife. No major shifts in weather patterns are noted between August and September, apart from a gentle decrease in temperature. The late summer stage sets perfect conditions for engaging in various outdoor activities, such as hiking and water sports. With autumn approaching, August serves as the end of a season filled with warmth and sunshine.

Temperature

Shifting into August, Lafayette records an average high-temperature of a still moderately hot 84.2°F (29°C), presenting minor fluctuations compared to the previous month. Lafayette documents a substantial shift from daytime warmth, recording an average nighttime temperature of 57.4°F (14.1°C) in August.

Heat index

August's mean heat index is appraised at 84.2°F (29°C). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.

Humidity

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

Rainfall

In Lafayette, Colorado, during August, the rain falls for 9.8 days and regularly aggregates up to 0.55" (14mm) of precipitation. Throughout the year, there are 96.7 rainfall days, and 5.63" (143mm) of precipitation is accumulated.

Snowfall

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

Daylight

In August, the average length of the day in Lafayette is 13h and 42min.
On the first day of August in Lafayette, Colorado, sunrise is at 5:59 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.

Sunshine

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

UV index

The months with the highest UV index are July and August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 6 during August morphs into the following directions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in Lafayette in August?

The high-temperature, in August, in Lafayette, records 84.2°F (29°C), while the low-temperature is 57.4°F (14.1°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is appraised at 84.2°F (29°C).

What is the least humid month in Lafayette?

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

What is the average humidity in August in Lafayette?

The average relative humidity in August in Lafayette, Colorado, is 41%.

How much does it rain in Lafayette in August?

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

When it does not snow in Lafayette?

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

How many hours of daylight does Lafayette have in August?

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

What time are sunrise and sunset in August in Lafayette?

On the first day of August, sunrise is at 5:59 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.

What is the month with the most sunshine in Lafayette?

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

How many hours of sunshine does Lafayette have in August?

In August, the average sunshine duration is 11.8h.

When is the highest UV index in Lafayette?

July and 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 Lafayette?

The average daily maximum UV index in August in Lafayette, Colorado, is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's UV radiation.
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
Lafayette, CO

Average temperature in August - Lafayette, 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
Lafayette, CO

Average pressure in August - Lafayette, 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
Lafayette, CO

Average wind speed in August - Lafayette, 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
Lafayette, CO

Average humidity in August - Lafayette, 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
Lafayette, CO

Average rainfall in August - Lafayette, 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
Lafayette, CO

Average rainfall days in August - Lafayette, 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
Lafayette, CO

Average snowfall in August - Lafayette, 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
Lafayette, CO

Average snowfall days in August - Lafayette, 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
Lafayette, CO

Average daylight in August / Average sunshine in August - Lafayette, 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
Lafayette, CO

Average sunshine days in August - Lafayette, 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
Lafayette, CO

Average UV index in August - Lafayette, 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
Lafayette, CO

Average cloud cover in August - Lafayette, 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
Lafayette, CO

Average visibility in August - Lafayette, 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).

Lafayette, Colorado, USA

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