Monthly weather forecast and climate
Lyons, CO

Weather in January

January, the same as December, is a wintry winter month in Lyons, Colorado, with average temperature varying between 36.7°F (2.6°C) and 19°F (-7.2°C). In January, the average high-temperature is relatively the same as in December - a still cold 36.7°F (2.6°C). Weather in January »

Weather in February

February, the last month of the winter, in Lyons, is also a wintry month, with average temperature ranging between max 36.1°F (2.3°C) and min 17.8°F (-7.9°C). In February, the average high-temperature is almost the same as in January - a still cold 36.1°F (2.3°C). Weather in February »

Weather in March

March, the first month of the spring, in Lyons, is a frosty month, with temperature in the range of an average high of 46.2°F (7.9°C) and an average low of 25.9°F (-3.4°C). In Lyons, the average high-temperature in March rises, from a cold 36.1°F (2.3°C) in February, to a frosty 46.2°F (7.9°C). Weather in March »

Weather in April

April is a cool spring month in Lyons, Colorado, with average temperature varying between 30°F (-1.1°C) and 52.3°F (11.3°C). In April, the average high-temperature marginally rises, from a frosty 46.2°F (7.9°C) in March, to a fresh 52.3°F (11.3°C). Weather in April »

Weather in May

The last month of the spring, May, is a comfortable month in Lyons, Colorado, with average temperature fluctuating between 37.9°F (3.3°C) and 61.5°F (16.4°C). In Lyons, the average high-temperature rises, from a cool 52.3°F (11.3°C) in April, to an enjoyable 61.5°F (16.4°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Lyons, Colorado, with temperature in the range of an average low of 49.6°F (9.8°C) and an average high of 76.6°F (24.8°C). In Lyons, Colorado, the average high-temperature increases considerably, from a comfortable 61.5°F (16.4°C) in May, to a moderately hot 76.6°F (24.8°C). Weather in June »

Weather in July

July, like June, in Lyons, Colorado, is another warm summer month, with temperature in the range of an average low of 54.5°F (12.5°C) and an average high of 80.6°F (27°C). With an average high-temperature of 80.6°F (27°C) and an average low-temperature of 54.5°F (12.5°C), July is the warmest month. The average heat index in July is calculated to 81.3°F (27.4°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Lyons, Colorado, with average temperature fluctuating between 79.5°F (26.4°C) and 53.2°F (11.8°C). In Lyons, the average high-temperature in August is essentially the same as in July - a still moderately hot 79.5°F (26.4°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in Lyons, Colorado, with temperature in the range of an average low of 47.3°F (8.5°C) and an average high of 72.5°F (22.5°C). In Lyons, the average high-temperature slightly decreases, from a moderately hot 79.5°F (26.4°C) in August, to an agreeable 72.5°F (22.5°C). Weather in September »

Weather in October

October, like September, is another mild autumn month in Lyons, Colorado, with average temperature varying between 34.9°F (1.6°C) and 56.8°F (13.8°C). In Lyons, the average high-temperature significantly decreases, from a pleasant 72.5°F (22.5°C) in September, to a moderate 56.8°F (13.8°C). Weather in October »

Weather in November

November, the last month of the autumn, in Lyons, is another chilly month, with average temperature varying between 45.7°F (7.6°C) and 26.4°F (-3.1°C). In November, the average high-temperature drops, from a mild 56.8°F (13.8°C) in October, to a frosty 45.7°F (7.6°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Lyons, Colorado, with average temperature varying between 35.4°F (1.9°C) and 17.6°F (-8°C). With an average high-temperature of 35.4°F (1.9°C) and an average low-temperature of 17.6°F (-8°C), December is the coldest month. Weather in December »
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FAQ

How many days does it rain in Lyons?

Throughout the year, there are 134.2 rainfall days, and 17.13" (435mm) of precipitation is accumulated.

What is the driest month in Lyons?

The month with the least rainfall in Lyons, Colorado, is January when the rain falls for 5.4 days and typically collects 0.55" (14mm) of precipitation.

When does it snow in Lyons?

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

How much does it snow in Lyons?

In Lyons, Colorado, during the entire year, snow falls for 53.5 days, and aggregates up to 42.36" (1076mm) of snow.

When is the lowest UV index in Lyons?

Months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2.

What is the most humid month in Lyons?

With an average relative humidity of 71%, February is the most humid month in Lyons, Colorado.

What is the month with the least sunshine in Lyons?

February has the least sunshine of the year, with an average of 6.6h of sunshine.

What is the snowiest month in Lyons?

The month with the most snowfall is April when snow falls for 5.8 days and typically aggregates up to 8.39" (213mm) of snow.

What is the wettest month in Lyons?

The month with the most rainfall is May when the rain falls for 18.3 days and typically aggregates up to 2.72" (69mm) of precipitation.

What are the least humid months in Lyons?

Months with the lowest humidity are June, August and September, with an average relative humidity of 46%.

When it does not snow in Lyons?

June through September are months without snowfall in Lyons, Colorado.

When are the longest days in Lyons?

The month with the longest days is June, with an average of 15h of daylight.

What is the month with the most sunshine in Lyons?

Months with the most sunshine in Lyons, Colorado, are June and July, with an average of 11.7h of sunshine.

When is the highest UV index in Lyons?

June through August, with an average maximum UV index of 5, are months with the highest UV index.

What is the warmest month in Lyons?

July is the warmest month in Lyons, Colorado, with an average high-temperature of 80.6°F (27°C) and an average low-temperature of 54.5°F (12.5°C).

What is the coldest month in Lyons?

December is the coldest month, with an average high-temperature of 35.4°F (1.9°C) and an average low-temperature of 17.6°F (-8°C).

What is the month with the shortest days in Lyons?

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

Average temperature
Lyons, CO

Average temperature - Lyons, CO

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is December (35.4°F).

The month with the highest average low temperature is July (54.5°F).
The coldest month (with the lowest average low temperature) is December (17.6°F).

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Average pressure
Lyons, CO

Average pressure - Lyons, CO

The month with the highest atmospheric pressure is January (30.15").
Months with the lowest atmospheric pressure are April and June (29.91").

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Average wind speed
Lyons, CO

Average wind speed - Lyons, CO

The windiest month (with the highest average wind speed) is January (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity
Lyons, CO

Average humidity - Lyons, CO

The month with the highest relative humidity is February (71%).
Months with the lowest relative humidity are June, August and September (46%).

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Average rainfall
Lyons, CO

Average rainfall - Lyons, CO

The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is January (0.55").

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Average rainfall days
Lyons, CO

Average rainfall days - Lyons, CO

The month with the highest number of rainy days is July (20.4 days).
The month with the least rainy days is November (3.6 days).

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Average snowfall
Lyons, CO

Average snowfall - Lyons, CO

The month with the highest snowfall is April (8.39").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Lyons, CO

Average snowfall days - Lyons, CO

The month with the highest number of snowfall days is February (11 days).
Months with the least snowfall days are June, July and August (0 days).

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Average daylight / Average sunshine
Lyons, CO

Average daylight / Average sunshine - Lyons, 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: 11.7h).
The month with the least sunshine is February (Average sunshine: 6.6h).

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Average sunshine days
Lyons, CO

Average sunshine days - Lyons, CO

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (7.3 days).

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Average UV index
Lyons, CO

Average UV index - Lyons, CO

Months with the highest UV index are June, July and August (UV index 5).
Months with the lowest UV index are January, February, October, November and December (UV index 2).

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Average visibility
Lyons, CO

Average visibility - Lyons, 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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