Climate and monthly weather forecast
Siren, WI

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Weather in January

January, like December, is another subzero cold winter month in Siren, Wisconsin, with an average temperature varying between 18°F (-7.8°C) and 4.8°F (-15.1°C). Siren's January weather, with an average high temperature of 18°F (-7.8°C) and an average low temperature of 4.8°F (-15.1°C), tends to be the coldest of the year. Weather in January »

Weather in February

The last month of the winter, February, is also a subzero cold month in Siren, Wisconsin, with an average temperature fluctuating between 21.9°F (-5.6°C) and 8.1°F (-13.3°C). Siren experiences an average high-temperature of a still subzero cold 21.9°F (-5.6°C) with the onset of February, subtly varied from January's 18°F (-7.8°C). Weather in February »

Weather in March

March, the first month of the spring in Siren, is a cold month, with an average temperature varying between 36.9°F (2.7°C) and 22.8°F (-5.1°C). The start of March signals a considerable escalation in the average high-temperature, advancing from a freezing cold 21.9°F (-5.6°C) in February to a wintry 36.9°F (2.7°C). Weather in March »

Weather in April

April in Siren, Wisconsin, is a fresh spring month, with an average temperature fluctuating between 50.4°F (10.2°C) and 34.3°F (1.3°C). Siren's April weather shows an increase in high-temperatures, moving from March's wintry 36.9°F (2.7°C) to a cool 50.4°F (10.2°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in Siren, Wisconsin, with an average temperature fluctuating between 64.8°F (18.2°C) and 46°F (7.8°C). As May sets, the average high-temperature displays a significant increase, moving up from a cool 50.4°F (10.2°C) in April to an enjoyable 64.8°F (18.2°C). Weather in May »

Weather in June

June, the first month of the summer in Siren, is a warm month, with an average temperature ranging between max 73.6°F (23.1°C) and min 55°F (12.8°C). June brings a slight rise in Siren's average high-temperature, moving from a refreshing 64.8°F (18.2°C) in May to a warm 73.6°F (23.1°C). Weather in June »

Weather in July

July, like June, in Siren, Wisconsin, is a moderately hot summer month, with an average temperature fluctuating between 59.7°F (15.4°C) and 78.8°F (26°C). July, known for its average high temperature of 78.8°F (26°C) and an average low temperature of 59.7°F (15.4°C), is the warmest month. Weather in July »

Weather in August

August, the last month of the summer in Siren, is another warm month, with an average temperature ranging between max 76.8°F (24.9°C) and min 57.7°F (14.3°C). At the onset of August, Siren records an average high-temperature of a still moderately hot 76.8°F (24.9°C), showing little deviation from the preceding month. Weather in August »

Weather in September

September, the first month of the autumn in Siren, is also an agreeable month, with an average temperature varying between 69.3°F (20.7°C) and 50.7°F (10.4°C). September is characterized by a slight reduction in average high-temperature, easing from a warm 76.8°F (24.9°C) in August to a pleasant 69.3°F (20.7°C). Weather in September »

Weather in October

October, like September, in Siren, Wisconsin, is another fresh autumn month, with an average temperature ranging between min 39°F (3.9°C) and max 53.1°F (11.7°C). Siren sees a considerable decrease in average high-temperatures during October, falling from a pleasant 69.3°F (20.7°C) in September to a fresh 53.1°F (11.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a wintry month in Siren, Wisconsin, with an average temperature fluctuating between 38.1°F (3.4°C) and 26.1°F (-3.3°C). Siren's November weather is marked by a distinct drop in high-temperatures, declining from a cool 53.1°F (11.7°C) in October to a cold 38.1°F (3.4°C). Weather in November »

Weather in December

The first month of the winter, December, is also a subzero cold month in Siren, Wisconsin, with an average temperature varying between 23.4°F (-4.8°C) and 13.1°F (-10.5°C). The shift from November to December sees a distinct decrease in the average high-temperature, dropping from an icy 38.1°F (3.4°C) to a subzero cold 23.4°F (-4.8°C). Weather in December »
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

Temperature readings reach their annual highs in January, averaging 18°F (-7.8°C) and a minimum average of 4.8°F (-15.1°C).

What is the most humid month?

With an average relative humidity of 91%, January is the most humid month.

What is the driest month?

The month with the least rainfall is January, when the rain falls for 2.8 days and typically collects 0.55" (14mm) of precipitation.

How many days does it rain?

Throughout the year, there are 124.6 rainfall days, and 21.65" (550mm) of precipitation is accumulated.

When does it snow?

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

How much does it snow?

Throughout the year, there are 70.6 snowfall days, and 23.9" (607mm) of snow is accumulated.

What is the month with the least sunshine in Siren?

January has the least sunshine of the year, with an average of 2.8h of sunshine.

What is the month with the lowest UV index?

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

When is Daylight Saving Time (DST) in Siren?

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 are the least humid months?

The months with the lowest humidity are April and May, with an average relative humidity of 74%.

What is the wettest month?

The month with the most rainfall is June, when the rain falls for 16.7 days and typically aggregates up to 3.39" (86mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

When are the longest days?

The month with the longest days is June, with an average of 15h and 42min of daylight.

What is the hottest time of year?

The month of July sees the average highest temperatures in Siren, reaching 78.8°F (26°C) at the peak and 59.7°F (15.4°C) at the low.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 10h of sunshine.

What is the month with the highest UV index?

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

When does it snow the most?

December is the month with the most snowfall. Snow falls for 14.1 days and accumulates 5.75" (146mm) 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 pressure
Siren, WI

Average pressure - Siren, WI

The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed
Siren, WI

Average wind speed - Siren, WI

The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).

Average humidity
Siren, WI

Average humidity - Siren, WI

The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and May (74%).

Average rainfall
Siren, WI

Average rainfall - Siren, WI

The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is January (0.55").

Average rainfall days
Siren, WI

Average rainfall days - Siren, WI

The month with the highest number of rainy days is June (16.7 days).
The month with the least rainy days is January (2.8 days).

Average snowfall
Siren, WI

Average snowfall - Siren, WI

The month with the highest snowfall is December (5.75").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Siren, WI

Average snowfall days - Siren, WI

The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Siren, WI

Average daylight / Average sunshine - Siren, WI

The month with the longest days is June (Average daylight: 15h and 42min).
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 0min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

Average sunshine days
Siren, WI

Average sunshine days - Siren, WI

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is June (10.1 days).

Average UV index
Siren, WI

Average UV index - Siren, WI

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average visibility
Siren, WI

Average visibility - Siren, 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).

Siren, Wisconsin, USA

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