July weather forecast
Arvada, CO

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Weather in July

July, the same as June, is another warm summer month in Arvada, Colorado, with an average temperature ranging between max 85.1°F (29.5°C) and min 59.5°F (15.3°C).

Temperature

In Arvada, the peak temperatures are generally noted in July, averaging a high of 85.1°F (29.5°C) and a low of 59.5°F (15.3°C).

Heat index

During July, the heat index is estimated at a hot 86°F (30°C). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. 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 for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.

Humidity

The average relative humidity in July is 44%.

Rainfall

In Arvada, during July, the rain falls for 12.3 days and regularly aggregates up to 1.22" (31mm) of precipitation. Throughout the year, in Arvada, there are 95 rainfall days, and 10.08" (256mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In July, the average length of the day is 14h and 40min.
On the first day of the month, sunrise is at 5:36 am and sunset at 8:32 pm. On the last day of July, sunrise is at 5:59 am and sunset at 8:14 pm MDT.

Sunshine

The months with the most sunshine are June and July, with an average of 11.9h of sunshine.

UV index

June through 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: The maximum UV index of 6 during July translates into these guidelines:
Inhibit overexposure. Warding off sun damage is of utmost importance. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Updated: Jul 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month?

In Arvada, the peak temperatures are generally noted in July, averaging a high of 85.1°F (29.5°C) and a low of 59.5°F (15.3°C).

How hot is July?

During July, Arvada experiences an average high-temperature of 85.1°F (29.5°C) and a low-temperature of 59.5°F (15.3°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in July is estimated at 86°F (30°C).

What is the average humidity in July in Arvada?

In Arvada, the average relative humidity in July is 44%.

How much does it rain in Arvada in July?

In July, the rain falls for 12.3 days. Throughout July, 1.22" (31mm) of precipitation is accumulated.

When it does not snow?

June through September are months without snowfall.

How many hours of daylight does Arvada have in July?

In Arvada, the average day length in July is 14h and 40min.

When is the sunrise / sunset in July?

On the first day of July, sunrise is at 5:36 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 8:14 pm MDT.

What are the months with the most sunshine?

June and July, with an average of 11.9h of sunshine, are months with the most sunshine.

How long on average sun shines in July?

The average sunshine duration in July is 11.9h.

What is the month with the highest UV index?

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

What is the UV index reading in July?

The average daily maximum UV index in July is 6. A UV Index value of 6 to 7 symbolizes a high health threat 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 July
Arvada, CO

Average temperature in July - Arvada, CO
  • Average high temperature in July: 85.1°F

The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is December (39.6°F).

  • Average low temperature in July: 59.5°F

The month with the highest average low temperature is July (59.5°F).
The coldest months (with the lowest average low temperature) are February and December (20.7°F).

Average pressure in July
Arvada, CO

Average pressure in July - Arvada, CO
  • Average pressure in July: 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 July
Arvada, CO

Average wind speed in July - Arvada, 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).

Average humidity in July
Arvada, CO

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

The month with the highest relative humidity is February (66%).
The months with the lowest relative humidity are June and August (41%).

Average rainfall in July
Arvada, CO

Average rainfall in July - Arvada, CO
  • Average rainfall in July: 1.22"

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

Average rainfall days in July
Arvada, CO

Average rainfall days in July - Arvada, CO
  • Average rainfall days in July: 12.3 days

The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is November (3.3 days).

Average snowfall in July
Arvada, CO

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

The month with the highest snowfall is February (5.83").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Arvada, CO

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

The month with the highest number of snowfall days is February (8.6 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in July / Average sunshine in July - Arvada, CO
  • Average daylight in July: 14h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in July: 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: 6h and 48min).

Average sunshine days in July
Arvada, CO

Average sunshine days in July - Arvada, CO
  • Average sunshine days in July: 13.5 days

The month with the most sunshine days is November (23.9 days).
The month with the least sunshine days is July (13.5 days).

Average UV index in July
Arvada, CO

Average UV index in July - Arvada, CO
  • Average UV index in July: 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 July
Arvada, CO

Average cloud cover in July - Arvada, CO
  • Average cloud cover in July: 18

The month with the most cloud cover is April (Cloud cover 25).
The month with the least cloud cover is September (Cloud cover 14).

Average visibility in July
Arvada, CO

Average visibility in July - Arvada, CO
  • Average visibility in July: 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).

Arvada, Colorado, USA

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