Climate and monthly weather forecast
Harriman, TN

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Weather in January

January, like December, is another chilly winter month in Harriman, Tennessee, with an average temperature ranging between max 44.1°F (6.7°C) and min 29.1°F (-1.6°C). In Harriman, Tennessee, the lowest average temperatures are observed in January, with a high of 44.1°F (6.7°C) and a low of 29.1°F (-1.6°C). Weather in January »

Weather in February

The last month of the winter, February, is another chilly month in Harriman, Tennessee, with an average temperature varying between 49.1°F (9.5°C) and 33.3°F (0.7°C). The arrival of February brings an average high-temperature of a still frosty 49.1°F (9.5°C), nearly identical to January's 44.1°F (6.7°C). Weather in February »

Weather in March

March, the first month of the spring in Harriman, is a moderate month, with an average temperature fluctuating between 57.2°F (14°C) and 39.6°F (4.2°C). As Harriman transitions into March, a marginal rise in the average high-temperature is observed, moving from a frosty 49.1°F (9.5°C) in February to a refreshing 57.2°F (14°C). Weather in March »

Weather in April

April in Harriman, Tennessee, is a pleasant spring month, with an average temperature fluctuating between 68°F (20°C) and 47.5°F (8.6°C). As March transitions into April, Harriman sees a rise in the average high-temperature, moving from a mild 57.2°F (14°C) to an agreeable 68°F (20°C). Weather in April »

Weather in May

May, the last month of the spring in Harriman, is a warm month, with an average temperature ranging between max 77°F (25°C) and min 55°F (12.8°C). May's arrival is marked by an increase in the average high-temperature, moving from a pleasant 68°F (20°C) in April to a moderately hot 77°F (25°C). Weather in May »

Weather in June

June, the first month of the summer in Harriman, is also a moderately hot month, with an average temperature ranging between max 84°F (28.9°C) and min 61.9°F (16.6°C). June introduces a marginal temperature uplift, with average high-temperatures adjusting from May's moderately hot 77°F (25°C) to a still warm 84°F (28.9°C). Weather in June »

Weather in July

July in Harriman, Tennessee, is a hot summer month, with temperature in the range of an average low of 64.9°F (18.3°C) and an average high of 86.5°F (30.3°C). Harriman's July weather reaches an average high of 86.5°F (30.3°C) and an average low of 64.9°F (18.3°C), making it the warmest month. For most parts of July, the heat index is appraised at a very hot 100.4°F (38°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Harriman, Tennessee, with an average temperature ranging between min 63.9°F (17.7°C) and max 85.8°F (29.9°C). The introduction of August notes a subtle temperature variation to a moderately hot 85.8°F (29.9°C) from July's 86.5°F (30.3°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Harriman, Tennessee, with an average temperature ranging between min 59°F (15°C) and max 80.2°F (26.8°C). September indicates a minor shift in the average high-temperature, from August's 85.8°F (29.9°C) to a still warm 80.2°F (26.8°C). Weather in September »

Weather in October

October, like September, is another pleasant autumn month in Harriman, Tennessee, with an average temperature fluctuating between 68.7°F (20.4°C) and 48.4°F (9.1°C). In Harriman, the average high-temperature in October drops from a warm 80.2°F (26.8°C) in September to an agreeable 68.7°F (20.4°C). Weather in October »

Weather in November

The last month of the autumn, November, is another refreshing month in Harriman, Tennessee, with an average temperature fluctuating between 38.8°F (3.8°C) and 56.3°F (13.5°C). Arrival of November comes with a reduction in the average high-temperature, falling from a pleasant 68.7°F (20.4°C) in October to a mild 56.3°F (13.5°C). Weather in November »

Weather in December

December, the first month of the winter in Harriman, is also a frosty month, with an average temperature fluctuating between 34.7°F (1.5°C) and 48.6°F (9.2°C). December is characterized by a slight reduction in average high-temperature, easing from a moderate 56.3°F (13.5°C) in November to a frosty 48.6°F (9.2°C). Weather in December »
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Frequently asked questions

What is the coldest month in Harriman?

In Harriman, the lowest temperatures are generally noted in January, averaging a high of 44.1°F (6.7°C) and a low of 29.1°F (-1.6°C).

How much does it rain in Harriman?

In Harriman, during the entire year, the rain falls for 169.5 days and collects up to 34.09" (866mm) of precipitation.

When does it snow in Harriman?

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

How many days does it snow in Harriman?

Throughout the year, there are 15.2 snowfall days, and 2.76" (70mm) of snow is accumulated.

What are the months with the least sunshine in Harriman?

January and December, with an average of 4.8h of sunshine, are months with the least sunshine in Harriman, Tennessee.

What is the month with the lowest UV index in Harriman?

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

What is the snowiest month in Harriman?

February is the month with the most snowfall in Harriman, Tennessee. Snow falls for 4.1 days and accumulates 1.06" (27mm) of snow.

When is Daylight Saving Time (DST) in Harriman?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Harriman, Tennessee, 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 Harriman?

May through October are months without snowfall.

What are the months with the highest UV index in Harriman?

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

What is the least humid month in Harriman?

The months with the lowest humidity in Harriman, Tennessee, are June, August, October and November, with an average relative humidity of 76%.

When are the longest days in Harriman?

The month with the longest days is June, with an average of 14h and 36min of daylight.

What month has the most sunshine in Harriman?

June has the most sunshine of the year in Harriman, Tennessee, with an average of 10.3h of sunshine.

What time of the year is the hottest in Harriman?

The average temperatures reach their apex in July, averaging 86.5°F (30.3°C) at the high end and 64.9°F (18.3°C) at the low end.

What is the wettest month in Harriman?

July is the month with the most rainfall. Rain falls for 18.8 days and accumulates 4.09" (104mm) of precipitation.

What is the driest month in Harriman?

September is the month with the least rainfall. Rain falls for 12.6 days and accumulates 1.97" (50mm) of precipitation.

What is the most humid month in Harriman?

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

What is the month with the shortest days in Harriman?

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

Average pressure
Harriman, TN

Average pressure - Harriman, 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).

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Average wind speed
Harriman, TN

Average wind speed - Harriman, TN

The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

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Average humidity
Harriman, TN

Average humidity - Harriman, TN

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

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Average rainfall
Harriman, TN

Average rainfall - Harriman, TN

The wettest month (with the highest rainfall) is July (4.09").
The driest month (with the least rainfall) is September (1.97").

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Average rainfall days
Harriman, TN

Average rainfall days - Harriman, TN

The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (8.9 days).

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Average snowfall
Harriman, TN

Average snowfall - Harriman, TN

The month with the highest snowfall is February (1.06").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days
Harriman, TN

Average snowfall days - Harriman, TN

The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Harriman, TN

Average daylight / Average sunshine - Harriman, 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 48min).

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The months with the least sunshine are January and December (Average sunshine: 4h and 48min).

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Average sunshine days
Harriman, TN

Average sunshine days - Harriman, TN

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is July (10.7 days).

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Average UV index
Harriman, TN

Average UV index - Harriman, 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).

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Average visibility
Harriman, TN

Average visibility - Harriman, TN

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

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Harriman, Tennessee, USA

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