Climate and monthly weather forecast
Seneca, SC

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Weather in January

January, the same as December, in Seneca, South Carolina, is another chilly winter month, with temperature in the range of an average high of 49.6°F (9.8°C) and an average low of 33.4°F (0.8°C). January stands out as Seneca's coldest month, with temperatures ranging between an average high of 49.6°F (9.8°C) and a low of 33.4°F (0.8°C). Weather in January »

Weather in February

February, the last month of the winter in Seneca, is a cool month, with an average temperature fluctuating between 53.8°F (12.1°C) and 37°F (2.8°C). The transition into February shows a subtle variation to a fresh 53.8°F (12.1°C) from January's 49.6°F (9.8°C) in the average high-temperature. Weather in February »

Weather in March

The first month of the spring, March, is an enjoyable month in Seneca, South Carolina, with an average temperature varying between 42.4°F (5.8°C) and 61.2°F (16.2°C). Entering March, Seneca notices a subtle temperature elevation, with the average high-temperature advancing from February's fresh 53.8°F (12.1°C) to an enjoyable 61.2°F (16.2°C). Weather in March »

Weather in April

April is an agreeable spring month in Seneca, South Carolina, with temperature in the range of an average high of 70.7°F (21.5°C) and an average low of 50.2°F (10.1°C). The shift into April is accompanied by a temperature increase, with the average high-temperature rising from a comfortable 61.2°F (16.2°C) in March to an agreeable 70.7°F (21.5°C). Weather in April »

Weather in May

The last month of the spring, May, is a warm month in Seneca, South Carolina, with an average temperature varying between 78.8°F (26°C) and 58.1°F (14.5°C). May witnesses a minor rise in the average high-temperature, transitioning from a pleasant 70.7°F (21.5°C) in April to a moderately hot 78.8°F (26°C). Weather in May »

Weather in June

June, the first month of the summer in Seneca, is a hot month, with an average temperature varying between 64.9°F (18.3°C) and 86.5°F (30.3°C). June witnesses a minor rise in the average high-temperature, transitioning from a moderately hot 78.8°F (26°C) in May to a hot 86.5°F (30.3°C). Weather in June »

Weather in July

July, like June, is another tropical summer month in Seneca, South Carolina, with temperature in the range of an average low of 68°F (20°C) and an average high of 89.6°F (32°C). The warmest temperatures occur during July, when averages reach a peak of 89.6°F (32°C) and a low of 68°F (20°C). For most parts of July, the heat index is computed to be a scorching 104°F (40°C). Weather in July »

Weather in August

The last month of the summer, August, is also a hot month in Seneca, South Carolina, with an average temperature ranging between max 88°F (31.1°C) and min 67.3°F (19.6°C). The onset of August brings an average high-temperature of a still hot 88°F (31.1°C), nearly matching the July temperature. Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Seneca, South Carolina, with an average temperature fluctuating between 82.8°F (28.2°C) and 62.1°F (16.7°C). September brings a marginal elevation to a warm 82.8°F (28.2°C) from August's 88°F (31.1°C) in Seneca's average high-temperatures. Weather in September »

Weather in October

October, like September, is another pleasant autumn month in Seneca, South Carolina, with an average temperature fluctuating between 71.6°F (22°C) and 51.6°F (10.9°C). October's arrival correlates with a reduction in the average high-temperature, down from a warm 82.8°F (28.2°C) in September to a pleasant 71.6°F (22°C). Weather in October »

Weather in November

The last month of the autumn, November, is another refreshing month in Seneca, South Carolina, with an average temperature ranging between min 41.9°F (5.5°C) and max 59.9°F (15.5°C). In Seneca, entering November brings a temperature decrement, reducing from October's pleasant 71.6°F (22°C) to a mild 59.9°F (15.5°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cool month in Seneca, South Carolina, with temperature in the range of an average low of 38.3°F (3.5°C) and an average high of 52.7°F (11.5°C). December's arrival comes with a mild decrease in the average high-temperature, moving subtly from a refreshing 59.9°F (15.5°C) in November to a fresh 52.7°F (11.5°C). Weather in December »
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Seneca?

In Seneca, January registers the lowest temperatures, averaging 49.6°F (9.8°C) at the peak and 33.4°F (0.8°C) at the lowest.

How much does it rain?

In Seneca, during the entire year, the rain falls for 164.1 days and collects up to 37.09" (942mm) of precipitation.

When does it snow?

Months with snowfall are January through March, November and December.

How much does it snow?

Throughout the year, there are 3.6 snowfall days, and 4.25" (108mm) of snow is accumulated.

What are the months with the lowest UV index?

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

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.

When it does not snow?

April through October are months without snowfall.

When is the highest UV index?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

When are the longest days?

With an average of 14h and 24min of daylight, June has the longest days of the year.

What time of the year is the hottest?

July temperatures tend to peak at an average high of 89.6°F (32°C) and dip to a low of 68°F (20°C).

What is the least humid month?

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

What month has the most sunshine?

July has the most sunshine of the year, with an average of 11.1h of sunshine.

What is the driest month?

September is the month with the least rainfall. Rain falls for 12.5 days and accumulates 1.73" (44mm) of precipitation.

What is the most humid month?

The most humid month is December, with an average relative humidity of 77%.

What is the rainiest month?

December is the month with the most rainfall. Rain falls for 11.8 days and accumulates 4.21" (107mm) of precipitation.

What is the snowiest month?

December is the month with the most snowfall. Snow falls for 0.7 days and accumulates 2.05" (52mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 54min of daylight.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 5.4h of sunshine.

Average temperature
Seneca, SC

Average temperature - Seneca, SC

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (49.6°F).

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).

Average pressure
Seneca, SC

Average pressure - Seneca, SC

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed
Seneca, SC

Average wind speed - Seneca, SC

The windiest month (with the highest average wind speed) is February (6.3mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).

Average humidity
Seneca, SC

Average humidity - Seneca, SC

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).

Average rainfall
Seneca, SC

Average rainfall - Seneca, SC

The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is September (1.73").

Average rainfall days
Seneca, SC

Average rainfall days - Seneca, SC

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is October (9.5 days).

Average snowfall
Seneca, SC

Average snowfall - Seneca, SC

The month with the highest snowfall is December (2.05").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days
Seneca, SC

Average snowfall days - Seneca, SC

The month with the highest number of snowfall days is January (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
Seneca, SC

Average daylight / Average sunshine - Seneca, SC

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

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

Average sunshine days
Seneca, SC

Average sunshine days - Seneca, SC

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (10.5 days).

Average UV index
Seneca, SC

Average UV index - Seneca, SC

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

Average visibility
Seneca, SC

Average visibility - Seneca, 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).

Seneca, South Carolina, USA

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