Climate and monthly weather forecast
Waukesha, WI

Weather in January

January, like December, is a freezing cold winter month in Waukesha, Wisconsin, with an average temperature varying between 14°F (-10°C) and 25°F (-3.9°C). The coldest month is January, with an average high-temperature of 25°F (-3.9°C) and an average low-temperature of 14°F (-10°C). Weather in January »

Weather in February

The last month of the winter, February, is another freezing cold month in Waukesha, Wisconsin, with an average temperature varying between 17.1°F (-8.3°C) and 28.4°F (-2°C). In Waukesha, the average high-temperature in February is essentially the same as in January - a still subzero cold 28.4°F (-2°C). Weather in February »

Weather in March

The first month of the spring, March, is a wintry month in Waukesha, Wisconsin, with temperature in the range of an average high of 40.6°F (4.8°C) and an average low of 27.9°F (-2.3°C). In March, the average high-temperature increases from a freezing cold 28.4°F (-2°C) in February to a wintry 40.6°F (4.8°C). Weather in March »

Weather in April

April is a fresh spring month in Waukesha, Wisconsin, with an average temperature varying between 51.4°F (10.8°C) and 37.6°F (3.1°C). In Waukesha, the average high-temperature in April increases from a wintry 40.6°F (4.8°C) in March to a fresh 51.4°F (10.8°C). Weather in April »

Weather in May

May, the last month of the spring in Waukesha, is an enjoyable month, with an average temperature fluctuating between 47.8°F (8.8°C) and 63.5°F (17.5°C). In Waukesha, the average high-temperature in May rises from a fresh 51.4°F (10.8°C) in April to a comfortable 63.5°F (17.5°C). Weather in May »

Weather in June

The first month of the summer, June, is an agreeable month in Waukesha, Wisconsin, with an average temperature ranging between min 56.8°F (13.8°C) and max 72.3°F (22.4°C). In June, the average high-temperature slightly increases from an enjoyable 63.5°F (17.5°C) in May to an agreeable 72.3°F (22.4°C). Weather in June »

Weather in July

July is a moderately hot summer month in Waukesha, Wisconsin, with an average temperature varying between 78.1°F (25.6°C) and 63°F (17.2°C). With an average high-temperature of 78.1°F (25.6°C) and an average low-temperature of 63°F (17.2°C), July is the warmest month. Weather in July »

Weather in August

August, the last month of the summer in Waukesha, is also a moderately hot month, with an average temperature ranging between min 61.7°F (16.5°C) and max 76.8°F (24.9°C). In August, the average high-temperature is practically the same as in July - a still warm 76.8°F (24.9°C). Weather in August »

Weather in September

September, the first month of the autumn in Waukesha, is also an agreeable month, with an average temperature ranging between min 54.7°F (12.6°C) and max 70.7°F (21.5°C). In Waukesha, the average high-temperature in September marginally drops from a warm 76.8°F (24.9°C) in August to an agreeable 70.7°F (21.5°C). Weather in September »

Weather in October

October, the same as September, in Waukesha, Wisconsin, is a moderate autumn month, with an average temperature fluctuating between 43.7°F (6.5°C) and 57.4°F (14.1°C). In Waukesha, the average high-temperature in October decreases from a pleasant 70.7°F (21.5°C) in September to a moderate 57.4°F (14.1°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Waukesha, Wisconsin, with temperature in the range of an average high of 43.3°F (6.3°C) and an average low of 31.8°F (-0.1°C). In November, the average high-temperature drops from a mild 57.4°F (14.1°C) in October to a chilly 43.3°F (6.3°C). Weather in November »

Weather in December

December, the first month of the winter in Waukesha, is still a freezing cold month, with an average temperature varying between 31.8°F (-0.1°C) and 22.3°F (-5.4°C). In December, the average high-temperature decreases from a frosty 43.3°F (6.3°C) in November to a subzero cold 31.8°F (-0.1°C). Weather in December »
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FAQ

What is the coldest month in Waukesha?

January is the coldest month in Waukesha, Wisconsin, with an average high-temperature of 25°F (-3.9°C) and an average low-temperature of 14°F (-10°C).

What is the most humid month in Waukesha?

The most humid month is January, with an average relative humidity of 87%.

How many days does it rain in Waukesha?

In Waukesha, during the entire year, the rain falls for 114.5 days and collects up to 12.2" (310mm) of precipitation.

When does it snow in Waukesha?

January through April, October through December are months with snowfall in Waukesha.

When does it snow the most in Waukesha?

January is the month with the most snowfall. Snow falls for 11.2 days and accumulates 1.57" (40mm) of snow.

How much does it snow in Waukesha?

Throughout the year, in Waukesha, there are 43.1 snowfall days, and 5.35" (136mm) of snow is accumulated.

What is the month with the least sunshine in Waukesha?

The month with the least sunshine in Waukesha is January, with an average of 3.5h of sunshine.

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

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Waukesha.

What is the driest month in Waukesha?

February and December are months with the least rain in Waukesha, Wisconsin, when the rain falls for 3.6 days and typically aggregates up to 0.51" (13mm) of rain.

When is Daylight Saving Time (DST) in Waukesha?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Waukesha, Wisconsin, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from CDT to CST.

What are the least humid months in Waukesha?

The months with the lowest humidity in Waukesha, Wisconsin, are April, October and November, with an average relative humidity of 77%.

When it does not snow in Waukesha?

May through September are months without snowfall.

When are the longest days in Waukesha?

The month with the longest days is June, with an average of 15h and 19min of daylight.

When is the highest UV index in Waukesha?

The month with the highest UV index in Waukesha, Wisconsin, is June, with an average maximum UV index of 6.

What is the warmest month in Waukesha?

The warmest month in Waukesha, Wisconsin, is July, with an average high-temperature of 78.1°F (25.6°C) and an average low-temperature of 63°F (17.2°C).

What is the rainiest month in Waukesha?

July is the month with the most rainfall. Rain falls for 14.3 days and accumulates 1.73" (44mm) of precipitation.

What are the months with the most sunshine in Waukesha?

The months with the most sunshine are July and August, with an average of 10.2h of sunshine.

What is the month with the shortest days in Waukesha?

December has the shortest days of the year in Waukesha, with an average of 9h and 4min of daylight.

Average pressure
Waukesha, WI

Average pressure - Waukesha, WI

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed
Waukesha, WI

Average wind speed - Waukesha, WI

The windiest months (with the highest average wind speed) are January and February (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).

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Average humidity
Waukesha, WI

Average humidity - Waukesha, WI

The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April, October and November (77%).

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Average rainfall
Waukesha, WI

Average rainfall - Waukesha, WI

The wettest month (with the highest rainfall) is July (1.73").
The driest months (with the least rainfall) are February and December (0.51").

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Average rainfall days
Waukesha, WI

Average rainfall days - Waukesha, WI

The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is February (3.6 days).

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Average snowfall
Waukesha, WI

Average snowfall - Waukesha, WI

The month with the highest snowfall is January (1.57").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Waukesha, WI

Average snowfall days - Waukesha, WI

The month with the highest number of snowfall days is January (11.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Waukesha, WI

Average daylight / Average sunshine - Waukesha, WI

The month with the longest days is June (Average daylight: 15h and 19min).
The month with the shortest days is December (Average daylight: 9h and 4min).

The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days
Waukesha, WI

Average sunshine days - Waukesha, WI

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is July (13.3 days).

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Average visibility
Waukesha, WI

Average visibility - Waukesha, WI

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

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