Climate and monthly weather forecast
Mason, WI

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Weather in January

January, like December, is a freezing cold winter month in Mason, Wisconsin, with an average temperature ranging between max 19.4°F (-7°C) and min 8.6°F (-13°C). In Mason, January is the month with the lowest recorded average temperatures, measuring a high of 19.4°F (-7°C) and a low of 8.6°F (-13°C). Weather in January »

Weather in February

The last month of the winter, February, is another freezing cold month in Mason, Wisconsin, with temperature in the range of an average low of 10.8°F (-11.8°C) and an average high of 22.5°F (-5.3°C). Mason's February reports an average high-temperature of a still freezing cold 22.5°F (-5.3°C), exhibiting a minor difference from January. Weather in February »

Weather in March

The first month of the spring, March, is a cold month in Mason, Wisconsin, with an average temperature varying between 22.8°F (-5.1°C) and 35.1°F (1.7°C). A rise in the average high-temperature is observed during March, moving from a freezing cold 22.5°F (-5.3°C) in February to a wintry 35.1°F (1.7°C). Weather in March »

Weather in April

April in Mason, Wisconsin, is a chilly spring month, with temperature in the range of an average low of 32.2°F (0.1°C) and an average high of 46.4°F (8°C). In Mason, the average high-temperature in April rises, from an icy 35.1°F (1.7°C) in March, to a frosty 46.4°F (8°C). Weather in April »

Weather in May

May, the last month of the spring in Mason, is an enjoyable month, with an average temperature varying between 61.2°F (16.2°C) and 42.8°F (6°C). May signals a clear increase in the average high-temperature, soaring from April's frosty 46.4°F (8°C) to a refreshing 61.2°F (16.2°C). Weather in May »

Weather in June

June, the first month of the summer in Mason, is a pleasant month, with an average temperature fluctuating between 51.1°F (10.6°C) and 70.3°F (21.3°C). A rise in the average high-temperature is observed during June, moving from a comfortable 61.2°F (16.2°C) in May to a pleasant 70.3°F (21.3°C). Weather in June »

Weather in July

July in Mason, Wisconsin, is a moderately hot summer month, with an average temperature fluctuating between 57.7°F (14.3°C) and 76.8°F (24.9°C). July, marked by an average high-temperature of 76.8°F (24.9°C) and a low-temperature of 57.7°F (14.3°C), is the warmest month. Weather in July »

Weather in August

August, the last month of the summer in Mason, is also a moderately hot month, with an average temperature fluctuating between 75.2°F (24°C) and 57.4°F (14.1°C). As July turns into August, the average high-temperatures rest at a still warm 75.2°F (24°C), showing a minor variation from the prior month. Weather in August »

Weather in September

The first month of the autumn, September, is still a refreshing month in Mason, Wisconsin, with an average temperature varying between 50.9°F (10.5°C) and 67.1°F (19.5°C). In September, the average high-temperature marginally drops from a moderately hot 75.2°F (24°C) in August to a comfortable 67.1°F (19.5°C). Weather in September »

Weather in October

October, like September, in Mason, Wisconsin, is a cool autumn month, with an average temperature ranging between min 40.3°F (4.6°C) and max 52°F (11.1°C). As October arrives, Mason's weather displays a notable decrease in high-temperatures, falling from September's enjoyable 67.1°F (19.5°C) to a fresh 52°F (11.1°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a wintry month in Mason, Wisconsin, with an average temperature varying between 28°F (-2.2°C) and 37.6°F (3.1°C). The arrival of November brings a distinct temperature shift, with the average high-temperature dropping from a fresh 52°F (11.1°C) in October to a cold 37.6°F (3.1°C). Weather in November »

Weather in December

December, the first month of the winter in Mason, is still a freezing cold month, with an average temperature varying between 16°F (-8.9°C) and 25.3°F (-3.7°C). As November transitions to December, the average high-temperature falls from a cold 37.6°F (3.1°C) to a freezing cold 25.3°F (-3.7°C). Weather in December »

Frequently asked questions

What are the coldest months?

Mason's coldest temperatures are experienced in January, with average high temperatures of 19.4°F (-7°C) and lows of 8.6°F (-13°C).

What is the most humid month in Mason?

The most humid month is January, with an average relative humidity of 91%.

What is the driest month?

January is the month with the least rainfall. Rain falls for 3.2 days and accumulates 0.94" (24mm) of precipitation.

How much does it rain?

Throughout the year, there are 121.6 rainfall days, and 21.42" (544mm) of precipitation is accumulated.

When does it snow?

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

How many days does it snow?

In Mason, during the entire year, snow falls for 99.1 days and aggregates up to 37.13" (943mm) of snow.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 2.3h of sunshine.

When is the lowest UV index?

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

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

What is the least humid month?

The least humid month is May, with an average relative humidity of 72%.

When it does not snow?

June through September are months without snowfall in Mason.

When are the longest days?

With an average of 15h and 48min of daylight, June has the longest days of the year.

What is the hottest time of year?

The warmest month is July, with an average high-temperature of 76.8°F (24.9°C) and an average low-temperature of 57.7°F (14.3°C).

What is the rainiest month?

The month with the most rainfall is July, when the rain falls for 14.1 days and typically aggregates up to 2.56" (65mm) of precipitation.

What month has the most sunshine?

July has the most sunshine of the year, with an average of 10.3h of sunshine.

When is the highest UV index?

With an average maximum UV index of 6, July is the month with the highest UV index.

When does it snow the most in Mason?

The month with the most snowfall is December, when snow falls for 20.2 days and typically aggregates up to 7.95" (202mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 8h and 42min of daylight.

Average temperature
Mason, WI

Average temperature - Mason, WI

The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (19.4°F).

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (8.6°F).

Average pressure
Mason, WI

Average pressure - Mason, WI

The month with the highest atmospheric pressure is February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed
Mason, WI

Average wind speed - Mason, WI

The windiest month (with the highest average wind speed) is November (9.1mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

Average rainfall
Mason, WI

Average rainfall - Mason, WI

The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is January (0.94").

Average rainfall days
Mason, WI

Average rainfall days - Mason, WI

The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is January (3.2 days).

Average snowfall
Mason, WI

Average snowfall - Mason, WI

The month with the highest snowfall is December (7.95").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Mason, WI

Average snowfall days - Mason, WI

The month with the highest number of snowfall days is January (21.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Mason, WI

Average daylight / Average sunshine - Mason, WI

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 42min).

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).

Average sunshine days
Mason, WI

Average sunshine days - Mason, WI

The month with the most sunshine days is September (15 days).
The month with the least sunshine days is December (9.8 days).

Average visibility
Mason, WI

Average visibility - Mason, WI

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

Mason, Wisconsin, USA

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