Monthly weather forecast and climate
Louisville, CO

Weather in January

January, the same as December, is a wintry winter month in Louisville, Colorado, with average temperature ranging between min 21.6°F (-5.8°C) and max 40.3°F (4.6°C). In Louisville, the average high-temperature is essentially the same as in December - a still cold 40.3°F (4.6°C). Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Louisville, Colorado, with average temperature ranging between min 20.7°F (-6.3°C) and max 39.7°F (4.3°C). In Louisville, the average high-temperature in February is essentially the same as in January - a still cold 39.7°F (4.3°C). Weather in February »

Weather in March

The first month of the spring, March, is a fresh month in Louisville, Colorado, with average temperature ranging between min 29.1°F (-1.6°C) and max 50.7°F (10.4°C). In Louisville, Colorado, the average high-temperature rises, from a wintry 39.7°F (4.3°C) in February, to a fresh 50.7°F (10.4°C). Weather in March »

Weather in April

April in Louisville, Colorado, is a moderate spring month, with average temperature fluctuating between 33.4°F (0.8°C) and 57.6°F (14.2°C). In April, the average high-temperature marginally rises, from a cool 50.7°F (10.4°C) in March, to a moderate 57.6°F (14.2°C). Weather in April »

Weather in May

May, the last month of the spring, in Louisville, is an enjoyable month, with temperature in the range of an average high of 66°F (18.9°C) and an average low of 41.7°F (5.4°C). In May, the average high-temperature slightly increases, from a mild 57.6°F (14.2°C) in April, to an enjoyable 66°F (18.9°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Louisville, Colorado, with average temperature ranging between min 53.8°F (12.1°C) and max 81.3°F (27.4°C). In Louisville, the average high-temperature soars, from a comfortable 66°F (18.9°C) in May, to a warm 81.3°F (27.4°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Louisville, Colorado, with average temperature fluctuating between 59°F (15°C) and 85.5°F (29.7°C). With an average high-temperature of 85.5°F (29.7°C) and an average low-temperature of 59°F (15°C), July is the warmest month. The average heat index is appraised at 85.6°F (29.8°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Louisville, Colorado, with temperature in the range of an average high of 84.2°F (29°C) and an average low of 57.4°F (14.1°C). In Louisville, Colorado, the average high-temperature in August is almost the same as in July - a still warm 84.2°F (29°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Louisville, Colorado, with average temperature varying between 76.6°F (24.8°C) and 50.7°F (10.4°C). In September, the average high-temperature marginally drops, from 84.2°F (29°C) in August, to a still moderately hot 76.6°F (24.8°C). Weather in September »

Weather in October

October, like September, in Louisville, Colorado, is another comfortable autumn month, with average temperature varying between 38.1°F (3.4°C) and 61°F (16.1°C). In Louisville, the average high-temperature plummets, from a moderately hot 76.6°F (24.8°C) in September, to an enjoyable 61°F (16.1°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Louisville, Colorado, with average temperature varying between 28.8°F (-1.8°C) and 50°F (10°C). In Louisville, the average high-temperature decreases, from a comfortable 61°F (16.1°C) in October, to a cool 50°F (10°C). Weather in November »

Weather in December

December, the first month of the winter, in Louisville, is still a cold month, with temperature in the range of an average high of 39.4°F (4.1°C) and an average low of 20.7°F (-6.3°C). With an average high-temperature of 39.4°F (4.1°C) and an average low-temperature of 20.7°F (-6.3°C), December is the coldest month. Weather in December »
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FAQ

How much does it rain in Louisville?

Throughout the year, there are 96.7 rainfall days, and 5.63" (143mm) of precipitation is accumulated.

What is the driest month in Louisville?

January is the month with the least rainfall in Louisville, Colorado. Rain falls for 4.8 days and accumulates 0.16" (4mm) of precipitation.

When does it snow in Louisville?

Months with snowfall are January through May, October through December.

How much does it snow in Louisville?

In Louisville, during the entire year, snow falls for 36.7 days, and aggregates up to 13.98" (355mm) of snow.

What are the months with the lowest UV index in Louisville?

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

What is the most humid month in Louisville?

February is the most humid month in Louisville, with an average relative humidity of 67%.

When does it snow the most in Louisville?

February is the month with the most snowfall in Louisville. Snow falls for 8.4 days and accumulates 2.68" (68mm) of snow.

What is the month with the least sunshine in Louisville?

With an average of 6.7h of sunshine, February has the least sunshine of the year.

What is the rainiest month in Louisville?

Months with the most rainfall in Louisville, Colorado, are May and July, with an average 0.87" (22mm) of precipitation.

When it does not snow in Louisville?

June through September are months without snowfall.

When are the longest days in Louisville?

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

What is the month with the most sunshine in Louisville?

Months with the most sunshine are June through August, with an average of 11.8h of sunshine.

What is the warmest month in Louisville?

With an average high-temperature of 85.5°F (29.7°C) and an average low-temperature of 59°F (15°C), July is the warmest month in Louisville, Colorado.

What is the month with the highest UV index in Louisville?

July and August, with an average maximum UV index of 6, are months with the highest UV index in Louisville.

What is the least humid month in Louisville?

The least humid month in Louisville is August, with an average relative humidity of 41%.

What is the coldest month in Louisville?

The coldest month is December, with an average high-temperature of 39.4°F (4.1°C) and an average low-temperature of 20.7°F (-6.3°C).

What is the month with the shortest days in Louisville?

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

Average temperature
Louisville, CO

Average temperature - Louisville, CO

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (39.4°F).

The month with the highest average low temperature is July (59°F).
The coldest months (with the lowest average low temperature) are February and December (20.7°F).

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Average pressure
Louisville, CO

Average pressure - Louisville, 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
Louisville, CO

Average wind speed - Louisville, 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 rainfall
Louisville, CO

Average rainfall - Louisville, CO

The wettest months (with the highest rainfall) are May and July (0.87").
The driest month (with the least rainfall) is January (0.16").

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Average rainfall days
Louisville, CO

Average rainfall days - Louisville, CO

The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is November (3.5 days).

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Average snowfall
Louisville, CO

Average snowfall - Louisville, CO

The month with the highest snowfall is February (2.68").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Louisville, CO

Average snowfall days - Louisville, CO

The month with the highest number of snowfall days is February (8.4 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Louisville, CO

Average daylight / Average sunshine - Louisville, 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, July and August (Average sunshine: 11.8h).
The month with the least sunshine is February (Average sunshine: 6.7h).

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Average sunshine days
Louisville, CO

Average sunshine days - Louisville, CO

The month with the most sunshine days is November (23.7 days).
The month with the least sunshine days is July (10 days).

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Average UV index
Louisville, CO

Average UV index - Louisville, CO

Months with the highest UV index are 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
Louisville, CO

Average visibility - Louisville, 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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