Climate and monthly weather forecast
Mount Sulphur, TN

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Weather in January

January, like December, is a frosty winter month in Mount Sulphur, Tennessee, with an average temperature fluctuating between 44.6°F (7°C) and 29.5°F (-1.4°C). In Mount Sulphur, January is the coldest month, with temperatures averaging a high of 44.6°F (7°C) and a low of 29.5°F (-1.4°C). Weather in January »

Weather in February

February, the last month of the winter in Mount Sulphur, is also a frosty month, with temperature in the range of an average low of 33.8°F (1°C) and an average high of 49.5°F (9.7°C). Mount Sulphur experiences an average high-temperature of a still frosty 49.5°F (9.7°C) in February, subtly different from January's 44.6°F (7°C). Weather in February »

Weather in March

March, the first month of the spring in Mount Sulphur, is a mild month, with temperature in the range of an average high of 57.6°F (14.2°C) and an average low of 40.1°F (4.5°C). As Mount Sulphur welcomes March, the average high-temperature displays a subtle shift, adjusting from a chilly 49.5°F (9.7°C) in February to a moderate 57.6°F (14.2°C). Weather in March »

Weather in April

April is a pleasant spring month in Mount Sulphur, Tennessee, with an average temperature ranging between max 68°F (20°C) and min 47.8°F (8.8°C). As April arrives, Mount Sulphur's weather shows an increase in high-temperatures, moving from March's mild 57.6°F (14.2°C) to an agreeable 68°F (20°C). Weather in April »

Weather in May

May, the last month of the spring in Mount Sulphur, is a moderately hot month, with an average temperature varying between 55.9°F (13.3°C) and 76.6°F (24.8°C). Mount Sulphur's transition into May sees a mild rise in the average high-temperature, edging from an agreeable 68°F (20°C) in April to a warm 76.6°F (24.8°C). Weather in May »

Weather in June

The first month of the summer, June, is also a moderately hot month in Mount Sulphur, Tennessee, with an average temperature varying between 62.2°F (16.8°C) and 83.8°F (28.8°C). The shift into June is characterized by a subtle rise in the average high-temperature, transitioning from May's 76.6°F (24.8°C) to a still moderately hot 83.8°F (28.8°C). Weather in June »

Weather in July

July in Mount Sulphur, Tennessee, is a hot summer month, with an average temperature varying between 65.3°F (18.5°C) and 86.5°F (30.3°C). July, noted for its average high-temperature of 86.5°F (30.3°C) and an average low-temperature of 65.3°F (18.5°C), is considered the warmest month. The heat index in July is computed to be a torrid 100.4°F (38°C). Weather in July »

Weather in August

August, the last month of the summer in Mount Sulphur, is also a moderately hot month, with an average temperature varying between 64°F (17.8°C) and 85.6°F (29.8°C). The arrival of August sees an average high-temperature of a warm 85.6°F (29.8°C), hardly diverging from July's 86.5°F (30.3°C). Weather in August »

Weather in September

September, the first month of the autumn in Mount Sulphur, is also a moderately hot month, with an average temperature fluctuating between 59.2°F (15.1°C) and 79.9°F (26.6°C). The arrival of September correlates with a minor temperature reduction, down from August's warm 85.6°F (29.8°C) to a still moderately hot 79.9°F (26.6°C). Weather in September »

Weather in October

October, the same as September, in Mount Sulphur, Tennessee, is another pleasant autumn month, with an average temperature ranging between max 68.2°F (20.1°C) and min 48.7°F (9.3°C). As September transitions to October, the average high-temperature falls from a moderately hot 79.9°F (26.6°C) to an agreeable 68.2°F (20.1°C). Weather in October »

Weather in November

November, the last month of the autumn in Mount Sulphur, is another mild month, with an average temperature ranging between max 56.3°F (13.5°C) and min 38.8°F (3.8°C). With November's arrival, Mount Sulphur's weather changes as the average high-temperature falls from a pleasant 68.2°F (20.1°C) in October to a moderate 56.3°F (13.5°C). Weather in November »

Weather in December

The first month of the winter, December, is also a frosty month in Mount Sulphur, Tennessee, with an average temperature ranging between max 48.6°F (9.2°C) and min 34.7°F (1.5°C). The average high-temperature slightly decreases in December, shifting from a moderate 56.3°F (13.5°C) in November to a frosty 48.6°F (9.2°C). Weather in December »
Updated: Aug 21, 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 Mount Sulphur, January is the coldest month, with temperatures averaging a high of 44.6°F (7°C) and a low of 29.5°F (-1.4°C).

How much does it rain?

Throughout the year, there are 176 rainfall days, and 40.51" (1029mm) of precipitation is accumulated.

When does it snow?

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

When does it snow the most?

The month with the most snowfall is January, when snow falls for 3.8 days and typically aggregates up to 0.98" (25mm) of snow.

How many days does it snow?

In Mount Sulphur, during the entire year, snow falls for 11.6 days and aggregates up to 2.91" (74mm) of snow.

What is the month with the lowest UV index in Mount Sulphur?

January, February 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 in Mount Sulphur?

May 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?

The month with the longest days is June, with an average of 14h and 30min of daylight.

What month has the most sunshine?

The month with the most sunshine is June, with an average of 10.4h of sunshine.

What time of the year is the hottest?

Mount Sulphur's temperature records reveal July as the warmest month, marked by average highs of 86.5°F (30.3°C) and lows of 65.3°F (18.5°C).

What is the wettest month in Mount Sulphur?

The month with the most rainfall is July, when the rain falls for 19.2 days and typically aggregates up to 4.21" (107mm) of precipitation.

What is the driest month?

September is the month with the least rainfall. Rain falls for 13.1 days and accumulates 2.52" (64mm) of precipitation.

What are the least humid months in Mount Sulphur?

October and November, with an average relative humidity of 76%, are the least humid months.

What is the most humid month?

The most humid month is December, with an average relative humidity of 80%.

What is the month with the shortest days?

With an average of 9h and 48min of daylight, December has the shortest days of the year in Mount Sulphur.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 4.9h of sunshine.

Average temperature
Mount Sulphur, TN

Average temperature - Mount Sulphur, TN

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (44.6°F).

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).

Average pressure
Mount Sulphur, TN

Average pressure - Mount Sulphur, TN

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed
Mount Sulphur, TN

Average wind speed - Mount Sulphur, TN

The windiest months (with the highest average wind speed) are February and April (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (3.9mph).

Average humidity
Mount Sulphur, TN

Average humidity - Mount Sulphur, TN

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are October and November (76%).

Average rainfall
Mount Sulphur, TN

Average rainfall - Mount Sulphur, TN

The wettest month (with the highest rainfall) is July (4.21").
The driest month (with the least rainfall) is September (2.52").

Average rainfall days
Mount Sulphur, TN

Average rainfall days - Mount Sulphur, TN

The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is November (9.5 days).

Average snowfall
Mount Sulphur, TN

Average snowfall - Mount Sulphur, TN

The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days
Mount Sulphur, TN

Average snowfall days - Mount Sulphur, TN

The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Mount Sulphur, TN

Average daylight / Average sunshine - Mount Sulphur, TN

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days
Mount Sulphur, TN

Average sunshine days - Mount Sulphur, TN

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is July (10 days).

Average UV index
Mount Sulphur, TN

Average UV index - Mount Sulphur, 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
Mount Sulphur, TN

Average visibility - Mount Sulphur, TN

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

Mount Sulphur, Tennessee, USA

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