May weather forecast
Harriman, TN

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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).

Temperature

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). The nighttime average for Harriman in May plummets considerably from its daytime counterpart, resting at a fresh 55°F (12.8°C).

Humidity

The average relative humidity in May in Harriman is 78%.

Rainfall

In Harriman, Tennessee, during May, the rain falls for 16.8 days and regularly aggregates up to 2.36" (60mm) of precipitation. In Harriman, Tennessee, during the entire year, the rain falls for 169.5 days and collects up to 34.09" (866mm) of precipitation.

Snowfall

In Harriman, Tennessee, snow does not fall in May through October.

Daylight

In May, the average length of the day is 14h and 5min.
On the first day of the month, sunrise is at 6:44 am and sunset at 8:25 pm. On the last day of May, in Harriman, sunrise is at 6:22 am and sunset at 8:49 pm EDT.

Sunshine

In May, the average sunshine in Harriman, Tennessee, is 9.5h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Harriman. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 6 in May converts into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
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Frequently asked questions

What is the average May temperature in Harriman?

The high-temperature, in May, in Harriman, is 77°F (25°C), while the low-temperature averages to 55°F (12.8°C).

What is the average humidity in May in Harriman?

In May, the average relative humidity is 78%.

How much does it rain in Harriman in May?

In Harriman, Tennessee, during May, the rain falls for 16.8 days and regularly aggregates up to 2.36" (60mm) of precipitation.

When it does not snow in Harriman?

May through October are months without snowfall in Harriman, Tennessee.

Does it snow in Harriman in May?

In May, in Harriman, it doesn't snow. April is the latest month when it typically snows.

How many hours of daylight does Harriman have in May?

In Harriman, the average day length in May is 14h and 5min.

When is the sunrise / sunset in May in Harriman?

In May, on the first day of the month, sunrise is at 6:44 am and sunset at 8:25 pm. On the last day of the month, in Harriman, sunrise is at 6:22 am and sunset at 8:49 pm EDT.

How long on average sun shines in May in Harriman?

In Harriman, the average sunshine duration in May is 9.5h.

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

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

What is the UV index reading in May in Harriman?

The average daily maximum UV index in May in Harriman, Tennessee, is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to Sun's UV rays.
Average high temperature
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Harriman, TN

Average temperature in May - Harriman, TN
  • Average high temperature in May: 77°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (44.1°F).

  • Average low temperature in May: 55°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).

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Average pressure in May
Harriman, TN

Average pressure in May - Harriman, TN
  • Average pressure in May: 30.01"Hg

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 in May
Harriman, TN

Average wind speed in May - Harriman, TN
  • Average wind speed in May: 5mph

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 in May
Harriman, TN

Average humidity in May - Harriman, TN
  • Average humidity in May: 78%

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 in May
Harriman, TN

Average rainfall in May - Harriman, TN
  • Average rainfall in May: 2.36"

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 in May
Harriman, TN

Average rainfall days in May - Harriman, TN
  • Average rainfall days in May: 16.8 days

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 in May
Harriman, TN

Average snowfall in May - Harriman, TN
  • Average snowfall in May: 0"

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 in May
Harriman, TN

Average snowfall days in May - Harriman, TN
  • Average snowfall days in May: 0 days

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 in May /
Average sunshine in May
Harriman, TN

Average daylight in May / Average sunshine in May - Harriman, TN
  • Average daylight in May: 14h and 1min

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).

  • Average sunshine in May: 9h and 3min

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 in May
Harriman, TN

Average sunshine days in May - Harriman, TN
  • Average sunshine days in May: 12 days

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 in May
Harriman, TN

Average UV index in May - Harriman, TN
  • Average UV index in May: 6

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 cloud cover in May
Harriman, TN

Average cloud cover in May - Harriman, TN
  • Average cloud cover in May: 37

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 31).

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Average visibility in May
Harriman, TN

Average visibility in May - Harriman, TN
  • Average visibility in May: 5mi

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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