Climate and monthly weather forecast
Hartsville, TN

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Weather in January

January, like December, is another chilly winter month in Hartsville, Tennessee, with an average temperature ranging between min 29.5°F (-1.4°C) and max 43.7°F (6.5°C). Hartsville reaches its lowest average temperatures in January, measuring 43.7°F (6.5°C) at the peak and 29.5°F (-1.4°C) at the lowest. Weather in January »

Weather in February

The last month of the winter, February, is also a frosty month in Hartsville, Tennessee, with an average temperature ranging between min 33.1°F (0.6°C) and max 48.7°F (9.3°C). With the onset of February, the average high-temperature stands at a still chilly 48.7°F (9.3°C), closely aligned with January's 43.7°F (6.5°C). Weather in February »

Weather in March

March, the first month of the spring in Hartsville, is a moderate month, with temperature in the range of an average low of 40.1°F (4.5°C) and an average high of 57.6°F (14.2°C). March witnesses a minor rise in the average high-temperature, transitioning from a frosty 48.7°F (9.3°C) in February to a refreshing 57.6°F (14.2°C). Weather in March »

Weather in April

April is a pleasant spring month in Hartsville, Tennessee, with an average temperature fluctuating between 48.9°F (9.4°C) and 68.5°F (20.3°C). The arrival of April signals an increase in the average high-temperature, moving from a moderate 57.6°F (14.2°C) in March to a pleasant 68.5°F (20.3°C). Weather in April »

Weather in May

The last month of the spring, May, is a warm month in Hartsville, Tennessee, with an average temperature fluctuating between 57.2°F (14°C) and 76.8°F (24.9°C). May brings a slight elevation in the average high-temperature, transitioning from April's agreeable 68.5°F (20.3°C) to a moderately hot 76.8°F (24.9°C). Weather in May »

Weather in June

June, the first month of the summer in Hartsville, is still a warm month, with temperature in the range of an average high of 84.9°F (29.4°C) and an average low of 64.8°F (18.2°C). Hartsville's weather in June presents a minor rise in the average high-temperature, moving from 76.8°F (24.9°C) in May to a still warm 84.9°F (29.4°C). Weather in June »

Weather in July

July is a tropical summer month in Hartsville, Tennessee, with an average temperature ranging between max 86.9°F (30.5°C) and min 67.3°F (19.6°C). July registers as the month with the highest average temperatures, reaching 86.9°F (30.5°C) at its peak and 67.3°F (19.6°C) at the lowest. During July, the heat index is estimated at a torrid 102.2°F (39°C). Weather in July »

Weather in August

August, the last month of the summer in Hartsville, is another warm month, with an average temperature fluctuating between 85.6°F (29.8°C) and 66.7°F (19.3°C). The onset of August marks an average high-temperature of a moderately hot 85.6°F (29.8°C), hardly differing from July's 86.9°F (30.5°C). Weather in August »

Weather in September

September, the first month of the autumn in Hartsville, is also a moderately hot month, with an average temperature fluctuating between 61°F (16.1°C) and 80.2°F (26.8°C). Hartsville's progression into September involves a gentle drop in the average high-temperature, from a warm 85.6°F (29.8°C) in August to a still moderately hot 80.2°F (26.8°C). Weather in September »

Weather in October

October, like September, is an agreeable autumn month in Hartsville, Tennessee, with an average temperature ranging between min 49.1°F (9.5°C) and max 68.7°F (20.4°C). The average high-temperature drops in October, from September's moderately hot 80.2°F (26.8°C) to a pleasant 68.7°F (20.4°C). Weather in October »

Weather in November

November, the last month of the autumn in Hartsville, is another mild month, with an average temperature ranging between min 39.2°F (4°C) and max 56.3°F (13.5°C). Hartsville's progression into November involves a drop in the average high-temperature, receding from an agreeable 68.7°F (20.4°C) in October to a moderate 56.3°F (13.5°C). Weather in November »

Weather in December

December, the first month of the winter in Hartsville, is also a frosty month, with temperature in the range of an average low of 35.1°F (1.7°C) and an average high of 47.8°F (8.8°C). In Hartsville, the average high-temperature in December slightly decreases from a mild 56.3°F (13.5°C) in November to a chilly 47.8°F (8.8°C). Weather in December »
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

January, with its high-temperature average of 43.7°F (6.5°C) and a low-temperature average of 29.5°F (-1.4°C), is the coldest month.

How many days does it rain?

Throughout the year, in Hartsville, there are 178.1 rainfall days, and 37.99" (965mm) of precipitation is accumulated.

When does it snow?

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

What is the snowiest month?

The month with the most snowfall is January, when snow falls for 5.4 days and typically aggregates up to 1.38" (35mm) of snow.

How much does it snow?

Throughout the year, there are 17.2 snowfall days, and 4.25" (108mm) of snow is accumulated.

What is the month with the lowest UV index?

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

What is the most humid month?

February, March, May and December, with an average relative humidity of 79%, are most humid months.

What is the month with the least sunshine?

The month with the least sunshine is February, with an average of 4.4h of sunshine.

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.

When it does not snow?

May through September 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?

June has the longest days of the year, with an average of 14h and 36min of daylight.

What month has the most sunshine?

The month with the most sunshine is June, with an average of 10.3h of sunshine.

What part of the year is the hottest?

In Hartsville, the average highest temperatures are observed in July, with a high of 86.9°F (30.5°C) and a low of 67.3°F (19.6°C).

What is the rainiest month?

July is the month with the most rainfall. Rain falls for 19.4 days and accumulates 4.53" (115mm) of precipitation.

What is the driest month?

September is the month with the least rainfall. Rain falls for 14.2 days and accumulates 2.05" (52mm) of precipitation.

What is the least humid month?

October and November, with an average relative humidity of 75%, are the least humid months.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 42min of daylight.

Average temperature
Hartsville, TN

Average temperature - Hartsville, TN

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (43.7°F).

The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).

Average pressure
Hartsville, TN

Average pressure - Hartsville, TN

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed
Hartsville, TN

Average wind speed - Hartsville, TN

The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

Average humidity
Hartsville, TN

Average humidity - Hartsville, TN

The months with the highest relative humidity are February, March, May and December (79%).
The months with the lowest relative humidity are October and November (75%).

Average rainfall
Hartsville, TN

Average rainfall - Hartsville, TN

The wettest month (with the highest rainfall) is July (4.53").
The driest month (with the least rainfall) is September (2.05").

Average rainfall days
Hartsville, TN

Average rainfall days - Hartsville, TN

The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (9.7 days).

Average snowfall
Hartsville, TN

Average snowfall - Hartsville, TN

The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Hartsville, TN

Average snowfall days - Hartsville, TN

The month with the highest number of snowfall days is January (5.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Hartsville, TN

Average daylight / Average sunshine - Hartsville, TN

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

Average sunshine days
Hartsville, TN

Average sunshine days - Hartsville, TN

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (9.3 days).

Average UV index
Hartsville, TN

Average UV index - Hartsville, TN

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, February and December (UV index 2).

Average visibility
Hartsville, TN

Average visibility - Hartsville, TN

The months with the highest visibility are February, April, June, September, October, November and December (6mi).
The months with the lowest visibility are January, March, May, July and August (5mi).

Hartsville, Tennessee, USA

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