Climate and monthly weather forecast
Barnwell, SC

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Weather in January

January, the same as December, is a cool winter month in Barnwell, South Carolina, with an average temperature ranging between min 39.4°F (4.1°C) and max 54.3°F (12.4°C). Barnwell's temperature records reveal January as the coldest month, marked by average highs of 54.3°F (12.4°C) and lows of 39.4°F (4.1°C). Weather in January »

Weather in February

February, the last month of the winter in Barnwell, is a refreshing month, with an average temperature ranging between min 42.3°F (5.7°C) and max 59.4°F (15.2°C). February's weather records an average high-temperature of a moderate 59.4°F (15.2°C), showing little deviation from January. Weather in February »

Weather in March

March, the first month of the spring in Barnwell, is a refreshing month, with an average temperature ranging between min 48.2°F (9°C) and max 65.8°F (18.8°C). March brings a slight increase in the average high-temperature, progressing from a mild 59.4°F (15.2°C) in February to a still refreshing 65.8°F (18.8°C). Weather in March »

Weather in April

April is a moderately hot spring month in Barnwell, South Carolina, with temperature in the range of an average high of 74.3°F (23.5°C) and an average low of 56.1°F (13.4°C). The shift from March to April introduces a subtle increase in the average high-temperature, moving from an enjoyable 65.8°F (18.8°C) to a moderately hot 74.3°F (23.5°C). Weather in April »

Weather in May

The last month of the spring, May, is another warm month in Barnwell, South Carolina, with an average temperature fluctuating between 63.7°F (17.6°C) and 81.1°F (27.3°C). The shift into May is marked by a modest rise in the average high-temperature, moving from April's warm 74.3°F (23.5°C) to a still moderately hot 81.1°F (27.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a tropical month in Barnwell, South Carolina, with an average temperature varying between 70.7°F (21.5°C) and 88.2°F (31.2°C). June's arrival brings a modest temperature shift, moving from a moderately hot 81.1°F (27.3°C) in May to a tropical 88.2°F (31.2°C). Weather in June »

Weather in July

July, the same as June, in Barnwell, South Carolina, is a hot summer month, with an average temperature ranging between min 73.2°F (22.9°C) and max 90.9°F (32.7°C). Barnwell's temperature records reveal July as the warmest month, marked by average highs of 90.9°F (32.7°C) and lows of 73.2°F (22.9°C). For July, the heat index is estimated at an extremely hot 111.2°F (44°C). Weather in July »

Weather in August

August, the last month of the summer in Barnwell, is another tropical month, with an average temperature varying between 72.7°F (22.6°C) and 89.2°F (31.8°C). The beginning of August records an average high-temperature of a still tropical 89.2°F (31.8°C), almost echoing the conditions of the previous month. Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Barnwell, South Carolina, with temperature in the range of an average low of 68°F (20°C) and an average high of 84.4°F (29.1°C). Barnwell's September showcases an average high-temperature of a warm 84.4°F (29.1°C), hardly distinct from August's 89.2°F (31.8°C). Weather in September »

Weather in October

October, the same as September, is a moderately hot autumn month in Barnwell, South Carolina, with an average temperature ranging between min 57.2°F (14°C) and max 74.7°F (23.7°C). In Barnwell, the average high-temperature in October drops from a moderately hot 84.4°F (29.1°C) in September to a still warm 74.7°F (23.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is also an enjoyable month in Barnwell, South Carolina, with temperature in the range of an average low of 47.5°F (8.6°C) and an average high of 63.5°F (17.5°C). Barnwell, South Carolina, in November undergoes a mild reduction in the average high-temperature, shifting from October's moderately hot 74.7°F (23.7°C) to an enjoyable 63.5°F (17.5°C). Weather in November »

Weather in December

December, the first month of the winter in Barnwell, is also a moderate month, with temperature in the range of an average high of 57.7°F (14.3°C) and an average low of 43.7°F (6.5°C). December witnesses a gentle descent in average high-temperature, descending from November's enjoyable 63.5°F (17.5°C) to a mild 57.7°F (14.3°C). Weather in December »
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Frequently asked questions

What part of the year is the coldest in Barnwell?

Barnwell, South Carolina, records the coldest temperatures in January, averaging a high of 54.3°F (12.4°C) and a low of 39.4°F (4.1°C).

What is the least humid month in Barnwell?

The least humid month is January, with an average relative humidity of 70%.

How much does it rain in Barnwell?

Throughout the year, there are 155.3 rainfall days, and 29.37" (746mm) of precipitation is accumulated.

When does it snow in Barnwell?

Months with snowfall in Barnwell are January, February and December.

How many days does it snow in Barnwell?

Throughout the year, in Barnwell, South Carolina, there are 0.9 snowfall days, and 0.31" (8mm) of snow is accumulated.

When is the lowest UV index in Barnwell?

January and December, with an average maximum UV index of 3, are months with the lowest UV index.

What is the snowiest month in Barnwell?

February is the month with the most snowfall in Barnwell. Snow falls for 0.3 days and accumulates 0.2" (5mm) of snow.

When it does not snow in Barnwell?

March through November are months without snowfall in Barnwell, South Carolina.

When is Daylight Saving Time (DST) in Barnwell?

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.

When are the longest days in Barnwell?

With an average of 14h and 18min of daylight, June has the longest days of the year in Barnwell, South Carolina.

When is the highest UV index in Barnwell?

June and July, with an average maximum UV index of 7, are months with the highest UV index in Barnwell, South Carolina.

What is the hottest time of year in Barnwell?

July is the month when Barnwell experiences its warmest temperatures, averaging a high of 90.9°F (32.7°C) and a low of 73.2°F (22.9°C).

What month has the most sunshine in Barnwell?

The month with the most sunshine is July, with an average of 11h of sunshine.

What is the driest month in Barnwell?

The month with the least rainfall in Barnwell, South Carolina, is November, when the rain falls for 7.8 days and typically collects 1.61" (41mm) of precipitation.

What is the most humid month in Barnwell?

The most humid month in Barnwell is December, with an average relative humidity of 76%.

What is the wettest month in Barnwell?

December is the month with the most rainfall in Barnwell, South Carolina. Rain falls for 10.8 days and accumulates 3.39" (86mm) of precipitation.

What is the month with the shortest days in Barnwell?

The month with the shortest days in Barnwell is December, with an average of 10h and 0min of daylight.

What is the month with the least sunshine in Barnwell?

The month with the least sunshine is December, with an average of 5.5h of sunshine.

Average temperature
Barnwell, SC

Average temperature - Barnwell, SC

The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (54.3°F).

The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (39.4°F).

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Average pressure
Barnwell, SC

Average pressure - Barnwell, SC

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed
Barnwell, SC

Average wind speed - Barnwell, SC

The windiest months (with the highest average wind speed) are March and April (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average rainfall
Barnwell, SC

Average rainfall - Barnwell, SC

The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is November (1.61").

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Average rainfall days
Barnwell, SC

Average rainfall days - Barnwell, SC

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (7.8 days).

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Average snowfall
Barnwell, SC

Average snowfall - Barnwell, SC

The month with the highest snowfall is February (0.2").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

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Average snowfall days
Barnwell, SC

Average snowfall days - Barnwell, SC

The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average daylight / Average sunshine
Barnwell, SC

Average daylight / Average sunshine - Barnwell, SC

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days
Barnwell, SC

Average sunshine days - Barnwell, SC

The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (9 days).

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Average visibility
Barnwell, SC

Average visibility - Barnwell, SC

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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Barnwell, South Carolina, USA

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