Monthly weather forecast and climate
Arvada, CO

Weather in January

January, like December, in Arvada, Colorado, is another cold winter month, with average temperature varying between 40.6°F (4.8°C) and 21.6°F (-5.8°C). In Arvada, the average high-temperature in January is relatively the same as in December - a still cold 40.6°F (4.8°C). Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Arvada, Colorado, with average temperature ranging between max 40.1°F (4.5°C) and min 20.7°F (-6.3°C). In Arvada, the average high-temperature is practically the same as in January - a still wintry 40.1°F (4.5°C). Weather in February »

Weather in March

March, the first month of the spring, in Arvada, is a cool month, with average temperature varying between 51.4°F (10.8°C) and 29.8°F (-1.2°C). In Arvada, the average high-temperature increases, from a wintry 40.1°F (4.5°C) in February, to a cool 51.4°F (10.8°C). Weather in March »

Weather in April

April is a mild spring month in Arvada, Colorado, with temperature in the range of an average high of 57.7°F (14.3°C) and an average low of 34.2°F (1.2°C). In Arvada, the average high-temperature in April marginally rises, from a cool 51.4°F (10.8°C) in March, to a mild 57.7°F (14.3°C). Weather in April »

Weather in May

May, the last month of the spring, in Arvada, is an enjoyable month, with average temperature varying between 65.8°F (18.8°C) and 42.8°F (6°C). In Arvada, the average high-temperature in May marginally rises, from a mild 57.7°F (14.3°C) in April, to an enjoyable 65.8°F (18.8°C). Weather in May »

Weather in June

June, the first month of the summer, in Arvada, is a warm month, with average temperature ranging between min 54.7°F (12.6°C) and max 81.1°F (27.3°C). In June, the average high-temperature soars, from an enjoyable 65.8°F (18.8°C) in May, to a warm 81.1°F (27.3°C). Weather in June »

Weather in July

July, like June, in Arvada, Colorado, is another warm summer month, with average temperature varying between 85.1°F (29.5°C) and 59.5°F (15.3°C). July is the warmest month, with an average high-temperature of 85.1°F (29.5°C) and an average low-temperature of 59.5°F (15.3°C). In July, the average heat index is appraised at 85.3°F (29.6°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Arvada, Colorado, with average temperature ranging between max 83.8°F (28.8°C) and min 58.5°F (14.7°C). In August, the average high-temperature is practically the same as in July - a still moderately hot 83.8°F (28.8°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Arvada, Colorado, with average temperature varying between 76.6°F (24.8°C) and 51.4°F (10.8°C). In Arvada, Colorado, the average high-temperature in September slightly decreases, from 83.8°F (28.8°C) in August, to a still warm 76.6°F (24.8°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Arvada, Colorado, with average temperature ranging between max 61.3°F (16.3°C) and min 38.3°F (3.5°C). In October, the average high-temperature significantly decreases, from a warm 76.6°F (24.8°C) in September, to a comfortable 61.3°F (16.3°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Arvada, Colorado, with average temperature fluctuating between 28.9°F (-1.7°C) and 50.5°F (10.3°C). In Arvada, Colorado, the average high-temperature decreases, from an enjoyable 61.3°F (16.3°C) in October, to a cool 50.5°F (10.3°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Arvada, Colorado, with average temperature varying between 39.6°F (4.2°C) and 20.7°F (-6.3°C). The coldest month is December, with an average high-temperature of 39.6°F (4.2°C) and an average low-temperature of 20.7°F (-6.3°C). Weather in December »
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FAQ

How much does it rain in Arvada?

Throughout the year, in Arvada, Colorado, there are 95 rainfall days, and 10.08" (256mm) of precipitation is accumulated.

What is the driest month in Arvada?

January is the month with the least rainfall in Arvada. Rain falls for 4.3 days and accumulates 0.35" (9mm) of precipitation.

When does it snow in Arvada?

January through May, October through December are months with snowfall in Arvada.

How many days does it snow in Arvada?

Throughout the year, there are 40.9 snowfall days, and 32.17" (817mm) of snow is accumulated.

When is the lowest UV index in Arvada?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the most humid month in Arvada?

The most humid month in Arvada is February, with an average relative humidity of 66%.

What is the snowiest month in Arvada?

February is the month with the most snowfall. Snow falls for 8.6 days and accumulates 5.83" (148mm) of snow.

What is the month with the least sunshine in Arvada?

The month with the least sunshine is February, with an average of 6.8h of sunshine.

What is the rainiest month in Arvada?

May is the month with the most rainfall in Arvada, Colorado. Rain falls for 14.1 days and accumulates 1.69" (43mm) of precipitation.

What is the least humid month in Arvada?

June and August, with an average relative humidity of 41%, are the least humid months in Arvada.

When it does not snow in Arvada?

June through September are months without snowfall in Arvada.

When are the longest days in Arvada?

June has the longest days of the year in Arvada, Colorado, with an average of 15h of daylight.

What are the months with the most sunshine in Arvada?

Months with the most sunshine in Arvada, Colorado, are June and July, with an average of 11.9h of sunshine.

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

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

What is the warmest month in Arvada?

July is the warmest month in Arvada, with an average high-temperature of 85.1°F (29.5°C) and an average low-temperature of 59.5°F (15.3°C).

What is the coldest month in Arvada?

December is the coldest month in Arvada, Colorado, with an average high-temperature of 39.6°F (4.2°C) and an average low-temperature of 20.7°F (-6.3°C).

What is the month with the shortest days in Arvada?

The month with the shortest days in Arvada, Colorado, is December, with an average of 9.4h of daylight.

Average temperature
Arvada, CO

Average temperature - Arvada, CO

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).

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).

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Average pressure
Arvada, CO

Average pressure - Arvada, CO

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
Arvada, CO

Average wind speed - Arvada, CO

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
Arvada, CO

Average humidity - Arvada, CO

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

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Average rainfall
Arvada, CO

Average rainfall - Arvada, CO

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

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Average rainfall days
Arvada, CO

Average rainfall days - Arvada, CO

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).

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Average snowfall
Arvada, CO

Average snowfall - Arvada, CO

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

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Average snowfall days
Arvada, CO

Average snowfall days - Arvada, CO

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

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Average daylight / Average sunshine
Arvada, CO

Average daylight / Average sunshine - Arvada, CO

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

Months with the most sunshine are June and July (Average sunshine: 11.9h).
The month with the least sunshine is February (Average sunshine: 6.8h).

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Average sunshine days
Arvada, CO

Average sunshine days - Arvada, CO

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

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Average UV index
Arvada, CO

Average UV index - Arvada, CO

Months with the highest UV index are June, 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 visibility
Arvada, CO

Average visibility - Arvada, CO

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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