Climate and monthly weather forecast
Southport, IN

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Weather in January

January, the same as December, is a wintry winter month in Southport, Indiana, with an average temperature ranging between max 34.2°F (1.2°C) and min 21.4°F (-5.9°C). Southport's coldest month, January, registers temperatures that range from a high of 34.2°F (1.2°C) to a low of 21.4°F (-5.9°C). Weather in January »

Weather in February

February, the last month of the winter in Southport, is also an icy month, with an average temperature ranging between min 25.3°F (-3.7°C) and max 38.5°F (3.6°C). Southport's February average high-temperature settles at a still icy 38.5°F (3.6°C), showing a near match with the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Southport, is a cool month, with temperature in the range of an average low of 35.1°F (1.7°C) and an average high of 50.2°F (10.1°C). With the onset of March, the average high-temperature slightly shifts from February's wintry 38.5°F (3.6°C) to a fresh 50.2°F (10.1°C). Weather in March »

Weather in April

April is an enjoyable spring month in Southport, Indiana, with an average temperature varying between 45.7°F (7.6°C) and 61.9°F (16.6°C). Entering April, Southport sees a temperature rise, with the average high-temperature advancing from March's fresh 50.2°F (10.1°C) to an enjoyable 61.9°F (16.6°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Southport, Indiana, with an average temperature fluctuating between 55.9°F (13.3°C) and 72.1°F (22.3°C). May witnesses an increase in the average high-temperature, moving from a comfortable 61.9°F (16.6°C) in April to a pleasant 72.1°F (22.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Southport, Indiana, with an average temperature fluctuating between 63.9°F (17.7°C) and 80.1°F (26.7°C). June's arrival coincides with a subtle temperature rise, moving from May's pleasant 72.1°F (22.3°C) to a moderately hot 80.1°F (26.7°C). Weather in June »

Weather in July

July, like June, in Southport, Indiana, is another warm summer month, with an average temperature varying between 82.4°F (28°C) and 65.8°F (18.8°C). Southport's July weather, with an average high temperature of 82.4°F (28°C) and an average low temperature of 65.8°F (18.8°C), tends to be the warmest of the year. The heat index for July is evaluated at a hot 89.6°F (32°C). Weather in July »

Weather in August

August, the last month of the summer in Southport, is also a moderately hot month, with an average temperature fluctuating between 63.9°F (17.7°C) and 81.5°F (27.5°C). The dawn of August sees an average high-temperature of a still warm 81.5°F (27.5°C), subtly contrasting with July's 82.4°F (28°C). Weather in August »

Weather in September

September, the first month of the autumn in Southport, is also a moderately hot month, with an average temperature varying between 58.1°F (14.5°C) and 75.9°F (24.4°C). As August makes way for September, Southport's average high-temperature eases from a warm 81.5°F (27.5°C) to a still moderately hot 75.9°F (24.4°C). Weather in September »

Weather in October

October, like September, in Southport, Indiana, is another refreshing autumn month, with an average temperature varying between 47.3°F (8.5°C) and 63.5°F (17.5°C). In October, the average high-temperature goes from a warm 75.9°F (24.4°C) in September to a refreshing 63.5°F (17.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Southport, Indiana, with temperature in the range of an average high of 49.5°F (9.7°C) and an average low of 36.1°F (2.3°C). A decrease in the average high-temperature is observed during November, shifting from a comfortable 63.5°F (17.5°C) in October to a frosty 49.5°F (9.7°C). Weather in November »

Weather in December

December, the first month of the winter in Southport, is also a wintry month, with an average temperature varying between 39.2°F (4°C) and 28.6°F (-1.9°C). A change in temperatures is noted as November gives way to December, with average highs reducing from a chilly 49.5°F (9.7°C) to a wintry 39.2°F (4°C). Weather in December »
Updated: Jul 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year in Southport?

With average temperatures fluctuating between a high of 34.2°F (1.2°C) and a low of 21.4°F (-5.9°C), January stands out as the coldest month.

How much does it rain?

In Southport, during the entire year, the rain falls for 161.8 days and collects up to 30.55" (776mm) of precipitation.

When does it snow in Southport?

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

When does it snow the most?

January is the month with the most snowfall. Snow falls for 10.4 days and accumulates 2.64" (67mm) of snow.

How much does it snow in Southport?

Throughout the year, there are 36.4 snowfall days, and 10.94" (278mm) of snow is accumulated.

What is the month with the least sunshine?

With an average of 4.1h of sunshine, January has the least sunshine of the year.

What is the month with the lowest UV index?

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

What is the driest month?

February is the month with the least rainfall in Southport. Rain falls for 7.9 days and accumulates 1.81" (46mm) of precipitation.

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 EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What is the wettest month?

The month with the most rainfall is May, when the rain falls for 18.7 days and typically aggregates up to 3.7" (94mm) of precipitation.

When it does not snow?

In Southport, snow does not fall in May through September.

When are the longest days?

With an average of 14h and 54min of daylight, June has the longest days of the year in Southport.

What month has the most sunshine?

June has the most sunshine of the year in Southport, with an average of 10.2h of sunshine.

When is the highest UV index?

The months with the highest UV index are June and July, with an average maximum UV index of 6.

What is the hottest time of year?

In Southport, July is the warmest month, with temperatures averaging a high of 82.4°F (28°C) and a low of 65.8°F (18.8°C).

What is the least humid month in Southport?

With an average relative humidity of 73%, October is the least humid month.

What is the most humid month?

The most humid month is December, with an average relative humidity of 82%.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 24min of daylight.

Average temperature
Southport, IN

Average temperature - Southport, IN

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (34.2°F).

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).

Average pressure
Southport, IN

Average pressure - Southport, IN

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed
Southport, IN

Average wind speed - Southport, IN

The windiest months (with the highest average wind speed) are January and February (9.6mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity
Southport, IN

Average humidity - Southport, IN

The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (73%).

Average rainfall
Southport, IN

Average rainfall - Southport, IN

The wettest month (with the highest rainfall) is May (3.7").
The driest month (with the least rainfall) is February (1.81").

Average rainfall days
Southport, IN

Average rainfall days - Southport, IN

The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is February (7.9 days).

Average snowfall
Southport, IN

Average snowfall - Southport, IN

The month with the highest snowfall is January (2.64").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Southport, IN

Average snowfall days - Southport, IN

The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Southport, IN

Average daylight / Average sunshine - Southport, IN

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days
Southport, IN

Average sunshine days - Southport, IN

The month with the most sunshine days is October (16.7 days).
The month with the least sunshine days is May (9.5 days).

Average UV index
Southport, IN

Average UV index - Southport, IN

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

Average visibility
Southport, IN

Average visibility - Southport, IN

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).

Southport, Indiana, USA

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