July weather forecast and climate
Lafayette, CO

Weather in July

July, the same as June, is a moderately hot summer month in Lafayette, Colorado, with average temperature varying between 85.5°F (29.7°C) and 59°F (15°C).

Temperature

July is the warmest month, with an average high-temperature of 85.5°F (29.7°C) and an average low-temperature of 59°F (15°C).

Heat index

The average heat index is calculated to 85.6°F (29.8°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 'feels like', 'felt air temperature', 'real feel', or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (wind, clothing, 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

The average relative humidity in Lafayette is 44%.

Rainfall

Months with the most rainfall in Lafayette, Colorado, are May and July, with an average 0.87" (22mm) of precipitation.

Snowfall

In Lafayette snow does not fall in June through September.

Daylight

The average length of the day is 14.7h.

Sunshine

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

UV index

July and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the warmest month in Lafayette?

With an average high-temperature of 85.5°F (29.7°C) and an average low-temperature of 59°F (15°C), July is the warmest month in Lafayette.

What is the temperature in July in Lafayette?

In Lafayette, in July, the average high-temperature is 85.5°F (29.7°C), and the average low-temperature is 59°F (15°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that combines relative humidity and air temperature, is estimated at 85.6°F (29.8°C).

What is the average humidity in July in Lafayette?

The average relative humidity in July in Lafayette is 44%.

How many days does it rain in July in Lafayette?

In Lafayette, during July, the rain falls for 13.5 days and regularly aggregates up to 0.87" (22mm) of precipitation.

What is the wettest month in Lafayette?

Months with the most rainfall in Lafayette are May and July, with an average 0.87" (22mm) of precipitation.

When it does not snow in Lafayette?

June through September are months without snowfall.

How many hours of daylight does Lafayette have in July?

In Lafayette, the average length of the day in July is 14.7h.

What is the month with the most sunshine in Lafayette?

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 July?

In July, the average sunshine in Lafayette, Colorado, is 11.8h.

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

Months with the highest UV index in Lafayette, Colorado, are July and August, with an average maximum UV index of 6.

How high is the UV index in July in Lafayette?

In Lafayette, the average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to the UV radiation.

Average temperature in July
Lafayette, CO

Average temperature in July - Lafayette, CO
  • Average high temperature in July: 85.5°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 July: 59°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).

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Average pressure in July
Lafayette, CO

Average pressure in July - Lafayette, CO
  • Average pressure in July: 30.01"

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

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Average wind speed in July
Lafayette, CO

Average wind speed in July - Lafayette, CO
  • Average wind speed in July: 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).

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Average humidity in July
Lafayette, CO

Average humidity in July - Lafayette, CO
  • Average humidity in July: 44%

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

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Average rainfall in July
Lafayette, CO

Average rainfall in July - Lafayette, CO
  • Average rainfall in July: 0.87"

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

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Average rainfall days in July
Lafayette, CO

Average rainfall days in July - Lafayette, CO
  • Average rainfall days in July: 13.5 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).

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Average snowfall in July
Lafayette, CO

Average snowfall in July - Lafayette, CO
  • Average snowfall in July: 0"

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

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Average snowfall days in July
Lafayette, CO

Average snowfall days in July - Lafayette, CO
  • Average snowfall days in July: 0 days

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

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Average daylight in July /
Average sunshine in July
Lafayette, CO

Average daylight in July / Average sunshine in July - Lafayette, CO
  • Average daylight in July: 14.7h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in July: 11.8h

Months with the most sunshine are June, July and August (Average sunshine: 11.8h).
The month with the least sunshine is February (Average sunshine: 6.7h).

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Average sunshine days in July
Lafayette, CO

Average sunshine days in July - Lafayette, CO
  • Average sunshine days in July: 10 days

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

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Average UV index in July
Lafayette, CO

Average UV index in July - Lafayette, CO
  • Average UV index in July: 6

Months with the highest UV index are 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 July
Lafayette, CO

Average cloud cover in July - Lafayette, CO
  • Average cloud cover in July: 19

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).

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Average visibility in July
Lafayette, CO

Average visibility in July - Lafayette, CO
  • Average visibility in July: 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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