Climate and monthly weather forecast
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 a freezing cold winter month, with an average temperature varying between 1°F (-17.2°C) and 23.2°F (-4.9°C). In January, the average high-temperature is almost the same as in December - a still freezing cold 23.2°F (-4.9°C). Weather in January »

Weather in February

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

Weather in March

March, the first month of the spring in Dillon, is still a freezing cold month, with an average temperature varying between 8.2°F (-13.2°C) and 30.4°F (-0.9°C). In March, the average high-temperature marginally rises from a subzero cold 23.5°F (-4.7°C) in February to a still freezing 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 April, the average high-temperature is essentially the same as in March - a wintry 35.2°F (1.8°C). Weather in April »

Weather in May

May, the last month of the spring in Dillon, is a frosty month, with an average temperature fluctuating between 46.8°F (8.2°C) and 23.7°F (-4.6°C). In Dillon, the average high-temperature in May increases from a wintry 35.2°F (1.8°C) in April to a chilly 46.8°F (8.2°C). Weather in May »

Weather in June

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

Weather in July

July, the same as June, is another comfortable summer month in Dillon, Colorado, with temperature in the range of an average low of 39.7°F (4.3°C) and an average high of 67.1°F (19.5°C). 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). Weather in July »

Weather in August

August, the last month of the summer in Dillon, is another comfortable month, with an average temperature varying between 64.9°F (18.3°C) and 37.8°F (3.2°C). In August, the average high-temperature is relatively the same as in July - a still enjoyable 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 an average temperature varying between 58.5°F (14.7°C) and 33.4°F (0.8°C). In Dillon, the average high-temperature in September marginally drops from a comfortable 64.9°F (18.3°C) in August to a mild 58.5°F (14.7°C). Weather in September »

Weather in October

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

Weather in November

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

Weather in December

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

What is the driest month in Dillon?

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

How much does it rain in Dillon?

Throughout the year, in Dillon, there are 111.5 rainfall days, and 23.19" (589mm) of precipitation is accumulated.

When does it snow in Dillon?

January through December are months with snowfall in Dillon, Colorado.

How many days 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 in Dillon, with an average of 5.4h of sunshine.

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

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

When is Daylight Saving Time (DST) in Dillon?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from MDT to MST.

What is the snowiest month in Dillon?

The month with the most snowfall 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 in Dillon.

When are the longest days in Dillon?

With an average of 14h and 56min of daylight, June has the longest days of the year in Dillon.

What month has the most sunshine in Dillon?

June has the most sunshine of the year, with an average of 11.4h of sunshine.

What is the warmest month in Dillon?

The warmest month in Dillon, Colorado, 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.

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

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

What is the coldest month in Dillon?

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).

What is the month with the shortest days in Dillon?

With an average of 9h and 25min of daylight, December has the shortest days of the year in Dillon, Colorado.

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"Hg).
The month with the lowest atmospheric pressure is April (29.93"Hg).

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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: 14h and 56min).
The month with the shortest days is December (Average daylight: 9h and 25min).

The month with the most sunshine is June (Average sunshine: 11h and 24min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).

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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 UV index
Dillon, CO

Average UV index - Dillon, CO

The months with the highest UV index are July and August (UV index 4).
The months with the lowest UV index are February, November and December (UV index 1).

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Average visibility
Dillon, CO

Average visibility - Dillon, CO

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

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