Monthly weather forecast and climate
Dillon, CO

The brown and golden trees near the iconic Dillon reservoir in Colorado
The brown and golden trees near the iconic Dillon reservoir in Colorado

Weather in January

January, the same as December, in Dillon, Colorado, is another subzero cold winter month, with average temperature varying between 23.2°F (-4.9°C) and 1°F (-17.2°C). In Dillon, Colorado, the average high-temperature is almost the same as in December - a still subzero cold 23.2°F (-4.9°C). Weather in January »

Weather in February

February, the last month of the winter, in Dillon, is another freezing cold month, with temperature in the range of an average high of 23.5°F (-4.7°C) and an average low of 1.9°F (-16.7°C). In Dillon, the average high-temperature in February is essentially the same as in January - a still freezing cold 23.5°F (-4.7°C). Weather in February »

Weather in March

March, the first month of the spring, in Dillon, is also a subzero cold month, with temperature in the range of an average low of 8.2°F (-13.2°C) and an average high of 30.4°F (-0.9°C). In Dillon, the average high-temperature in March marginally rises, from a freezing cold 23.5°F (-4.7°C) in February, to a still subzero cold 30.4°F (-0.9°C). Weather in March »

Weather in April

April is a cold spring month in Dillon, Colorado, with temperature in the range of an average high of 35.2°F (1.8°C) and an average low of 13.5°F (-10.3°C). In Dillon, Colorado, the average high-temperature is essentially the same as in March - a cold 35.2°F (1.8°C). Weather in April »

Weather in May

The last month of the spring, May, is a frosty month in Dillon, Colorado, with average temperature varying between 23.7°F (-4.6°C) and 46.8°F (8.2°C). In May, the average high-temperature rises, from a cold 35.2°F (1.8°C) in April, to a frosty 46.8°F (8.2°C). Weather in May »

Weather in June

The first month of the summer, June, is a comfortable month in Dillon, Colorado, with average temperature ranging between min 34.7°F (1.5°C) and max 62.8°F (17.1°C). In Dillon, the average high-temperature significantly increases, from a frosty 46.8°F (8.2°C) in May, to an enjoyable 62.8°F (17.1°C). Weather in June »

Weather in July

July, the same as June, is another enjoyable summer month in Dillon, Colorado, with average temperature ranging between max 67.1°F (19.5°C) and min 39.7°F (4.3°C). With an average high-temperature of 67.1°F (19.5°C) and an average low-temperature of 39.7°F (4.3°C), July is the warmest month. Weather in July »

Weather in August

August, the last month of the summer, in Dillon, is another comfortable month, with temperature in the range of an average high of 64.9°F (18.3°C) and an average low of 37.8°F (3.2°C). In Dillon, the average high-temperature in August is relatively the same as in July - a still comfortable 64.9°F (18.3°C). Weather in August »

Weather in September

September, the first month of the autumn, in Dillon, is also a moderate month, with average temperature ranging between min 33.4°F (0.8°C) and max 58.5°F (14.7°C). In Dillon, the average high-temperature in September marginally drops, from an enjoyable 64.9°F (18.3°C) in August, to a moderate 58.5°F (14.7°C). Weather in September »

Weather in October

October, the same as September, in Dillon, Colorado, is another chilly autumn month, with average temperature fluctuating between 22.1°F (-5.5°C) and 44.1°F (6.7°C). In October, the average high-temperature decreases, from a mild 58.5°F (14.7°C) in September, to a frosty 44.1°F (6.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a wintry month in Dillon, Colorado, with average temperature fluctuating between 32.4°F (0.2°C) and 11.1°F (-11.6°C). In Dillon, the average high-temperature in November drops, from a chilly 44.1°F (6.7°C) in October, to a wintry 32.4°F (0.2°C). Weather in November »

Weather in December

The first month of the winter, December, is also a subzero cold month in Dillon, Colorado, with average temperature fluctuating between 22.5°F (-5.3°C) and 0.9°F (-17.3°C). December is the coldest month, with an average high-temperature of 22.5°F (-5.3°C) and an average low-temperature of 0.9°F (-17.3°C). Weather in December »
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FAQ

How much does it rain in Dillon?

In Dillon, Colorado, during the entire year, the rain falls for 111.5 days and collects up to 23.19" (589mm) of precipitation.

What is the driest month in Dillon?

January is the month with the least rainfall. Rain falls for 3.4 days and accumulates 1.06" (27mm) of precipitation.

When does it snow in Dillon?

Months with snowfall are January through December.

How much does it snow in Dillon?

In Dillon, Colorado, during the entire year, snow falls for 149 days, and aggregates up to 108.54" (2757mm) of snow.

What is the most humid month in Dillon?

The most humid month is February, with an average relative humidity of 88%.

What is the month with the least sunshine in Dillon?

February has the least sunshine of the year, with an average of 5.4h of sunshine.

What is the month with the lowest UV index in Dillon?

Months with the lowest UV index in Dillon, Colorado, are February, November and December, with an average maximum UV index of 1.

What is the snowiest month in Dillon?

The month with the most snowfall in Dillon, Colorado, is April when snow falls for 21 days and typically aggregates up to 18.27" (464mm) of snow.

What is the least humid month in Dillon?

With an average relative humidity of 53%, June is the least humid month.

When are the longest days in Dillon?

With an average of 14.9h of daylight, June has the longest days of the year in Dillon.

What month has the most sunshine in Dillon?

With an average of 11.4h of sunshine, June has the most sunshine of the year in Dillon.

What is the warmest month in Dillon?

The warmest month is July, with an average high-temperature of 67.1°F (19.5°C) and an average low-temperature of 39.7°F (4.3°C).

What is the rainiest month in Dillon?

The month with the most rainfall in Dillon is July when the rain falls for 22.7 days and typically aggregates up to 3.39" (86mm) of precipitation.

When it does not snow in Dillon?

The month with the least snowfall is July when snow falls for 1.8 days and typically aggregates up to 0.47" (12mm) of snow.

When is the highest UV index in Dillon?

Months with the highest UV index in Dillon are July and August, with an average maximum UV index of 4.

What is the coldest month in Dillon?

December is the coldest month in Dillon, with an average high-temperature of 22.5°F (-5.3°C) and an average low-temperature of 0.9°F (-17.3°C).

What is the month with the shortest days in Dillon?

With an average of 9.4h of daylight, December has the shortest days of the year.

Average temperature
Dillon, CO

Average temperature - Dillon, CO

The warmest month (with the highest average high temperature) is July (67.1°F).
The month with the lowest average high temperature is December (22.5°F).

The month with the highest average low temperature is July (39.7°F).
The coldest month (with the lowest average low temperature) is December (0.9°F).

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Average pressure
Dillon, CO

Average pressure - Dillon, CO

The month with the highest atmospheric pressure is January (30.19").
The month with the lowest atmospheric pressure is April (29.93").

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Average wind speed
Dillon, CO

Average wind speed - Dillon, CO

The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

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Average rainfall
Dillon, CO

Average rainfall - Dillon, CO

The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is January (1.06").

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Average rainfall days
Dillon, CO

Average rainfall days - Dillon, CO

The month with the highest number of rainy days is July (22.7 days).
The month with the least rainy days is November (2.8 days).

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Average snowfall
Dillon, CO

Average snowfall - Dillon, CO

The month with the highest snowfall is April (18.27").
The month with the least snowfall is July (0.47").

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Average snowfall days
Dillon, CO

Average snowfall days - Dillon, CO

The month with the highest number of snowfall days is April (21 days).
The month with the least snowfall days is July (1.8 days).

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Average daylight / Average sunshine
Dillon, CO

Average daylight / Average sunshine - Dillon, CO

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

The month with the most sunshine is June (Average sunshine: 11.4h).
The month with the least sunshine is February (Average sunshine: 5.4h).

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Average sunshine days
Dillon, CO

Average sunshine days - Dillon, CO

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (5.3 days).

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Average visibility
Dillon, CO

Average visibility - Dillon, CO

Months with the highest visibility are June, July, August, September and October (6mi).
Months with the lowest visibility are January, February, March, April and December (4mi).

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