Monthly weather forecast and climate
Castlewood, CO

Weather in January

January, like December, in Castlewood, Colorado, is another cold winter month, with temperature in the range of an average low of 22.1°F (-5.5°C) and an average high of 41.2°F (5.1°C). In January, the average high-temperature is practically the same as in December - a still wintry 41.2°F (5.1°C). Weather in January »

Weather in February

February, the last month of the winter, in Castlewood, is also a wintry month, with average temperature ranging between max 41.5°F (5.3°C) and min 21.6°F (-5.8°C). In Castlewood, the average high-temperature is relatively the same as in January - a still cold 41.5°F (5.3°C). Weather in February »

Weather in March

March, the first month of the spring, in Castlewood, is a cool month, with average temperature varying between 30.6°F (-0.8°C) and 52.3°F (11.3°C). In March, the average high-temperature increases, from a cold 41.5°F (5.3°C) in February, to a fresh 52.3°F (11.3°C). Weather in March »

Weather in April

April is a mild spring month in Castlewood, Colorado, with average temperature ranging between max 58.8°F (14.9°C) and min 34.9°F (1.6°C). In April, the average high-temperature slightly increases, from a fresh 52.3°F (11.3°C) in March, to a mild 58.8°F (14.9°C). Weather in April »

Weather in May

May, the last month of the spring, in Castlewood, is a comfortable month, with average temperature fluctuating between 67.1°F (19.5°C) and 43.2°F (6.2°C). In Castlewood, the average high-temperature marginally rises, from a mild 58.8°F (14.9°C) in April, to an enjoyable 67.1°F (19.5°C). Weather in May »

Weather in June

June, the first month of the summer, in Castlewood, is a warm month, with average temperature fluctuating between 54.5°F (12.5°C) and 82°F (27.8°C). In Castlewood, the average high-temperature increases considerably, from an enjoyable 67.1°F (19.5°C) in May, to a moderately hot 82°F (27.8°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Castlewood, Colorado, with temperature in the range of an average low of 59.2°F (15.1°C) and an average high of 85.6°F (29.8°C). The warmest month is July, with an average high-temperature of 85.6°F (29.8°C) and an average low-temperature of 59.2°F (15.1°C). In July, the average heat index is evaluated at a hot 86.4°F (30.2°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Castlewood, Colorado, with average temperature fluctuating between 84.4°F (29.1°C) and 58.6°F (14.8°C). In Castlewood, the average high-temperature in August is essentially the same as in July - a still warm 84.4°F (29.1°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Castlewood, Colorado, with average temperature ranging between min 52.5°F (11.4°C) and max 77.7°F (25.4°C). In Castlewood, the average high-temperature marginally drops, from a warm 84.4°F (29.1°C) in August, to a still moderately hot 77.7°F (25.4°C). Weather in September »

Weather in October

October, like September, in Castlewood, Colorado, is another comfortable autumn month, with average temperature ranging between max 62.2°F (16.8°C) and min 38.7°F (3.7°C). In Castlewood, the average high-temperature declines considerably, from a warm 77.7°F (25.4°C) in September, to a comfortable 62.2°F (16.8°C). Weather in October »

Weather in November

November, the last month of the autumn, in Castlewood, is also a fresh month, with average temperature ranging between min 30°F (-1.1°C) and max 51.3°F (10.7°C). In November, the average high-temperature decreases, from an enjoyable 62.2°F (16.8°C) in October, to a fresh 51.3°F (10.7°C). Weather in November »

Weather in December

December, the first month of the winter, in Castlewood, is also a wintry month, with temperature in the range of an average low of 20.7°F (-6.3°C) and an average high of 40.3°F (4.6°C). December is the coldest month, with an average high-temperature of 40.3°F (4.6°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 Castlewood?

In Castlewood, during the entire year, the rain falls for 94.2 days and collects up to 11.97" (304mm) of precipitation.

When does it snow in Castlewood?

Months with snowfall in Castlewood, Colorado, are January through May, October through December.

How many days does it snow in Castlewood?

Throughout the year, in Castlewood, Colorado, there are 46.5 snowfall days, and 37.2" (945mm) of snow is accumulated.

When is the lowest UV index in Castlewood?

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

What is the most humid month in Castlewood?

With an average relative humidity of 65%, February is the most humid month in Castlewood.

What is the month with the least sunshine in Castlewood?

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

What is the snowiest month in Castlewood?

April is the month with the most snowfall. Snow falls for 6.1 days and accumulates 6.34" (161mm) of snow.

What is the wettest month in Castlewood?

May is the month with the most rainfall in Castlewood, Colorado. Rain falls for 14.2 days and accumulates 2.2" (56mm) of precipitation.

What is the least humid month in Castlewood?

June, August and September, with an average relative humidity of 43%, are the least humid months.

When it does not snow in Castlewood?

In Castlewood snow does not fall in June through September.

When are the longest days in Castlewood?

The month with the longest days is June, with an average of 14.9h of daylight.

What is the month with the most sunshine in Castlewood?

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

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

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

What is the warmest month in Castlewood?

With an average high-temperature of 85.6°F (29.8°C) and an average low-temperature of 59.2°F (15.1°C), July is the warmest month.

What is the driest month in Castlewood?

The month with the least rainfall in Castlewood is September when the rain falls for 6.5 days and typically collects 0.47" (12mm) of precipitation.

What is the coldest month in Castlewood?

December is the coldest month in Castlewood, with an average high-temperature of 40.3°F (4.6°C) and an average low-temperature of 20.7°F (-6.3°C).

What is the month with the shortest days in Castlewood?

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

Average temperature
Castlewood, CO

Average temperature - Castlewood, CO

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is December (40.3°F).

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is December (20.7°F).

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Average pressure
Castlewood, CO

Average pressure - Castlewood, CO

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are April and June (29.91").

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Average wind speed
Castlewood, CO

Average wind speed - Castlewood, CO

The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest months (with the lowest average wind speed) are August and December (6.5mph).

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Average humidity
Castlewood, CO

Average humidity - Castlewood, CO

The month with the highest relative humidity is February (65%).
Months with the lowest relative humidity are June, August and September (43%).

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Average rainfall
Castlewood, CO

Average rainfall - Castlewood, CO

The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is September (0.47").

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Average rainfall days
Castlewood, CO

Average rainfall days - Castlewood, CO

The month with the highest number of rainy days is May (14.2 days).
The month with the least rainy days is November (3.4 days).

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Average snowfall
Castlewood, CO

Average snowfall - Castlewood, CO

The month with the highest snowfall is April (6.34").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Castlewood, CO

Average snowfall days - Castlewood, CO

The month with the highest number of snowfall days is February (9.4 days).
Months with the least snowfall days are June, July and August (0 days).

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Average daylight / Average sunshine
Castlewood, CO

Average daylight / Average sunshine - Castlewood, 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).

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
Castlewood, CO

Average sunshine days - Castlewood, CO

The month with the most sunshine days is November (23.2 days).
The month with the least sunshine days is April (12.7 days).

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Average UV index
Castlewood, CO

Average UV index - Castlewood, 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
Castlewood, CO

Average visibility - Castlewood, 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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