April weather forecast
Williamsport, TN

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Weather in April

April in Williamsport, Tennessee, is a pleasant spring month, with an average temperature ranging between min 49.8°F (9.9°C) and max 68.9°F (20.5°C).

Temperature

In Williamsport, the onset of April comes with an increased average high-temperature, moving from March's refreshing 59.2°F (15.1°C) to a pleasant 68.9°F (20.5°C). Williamsport, during the nights of April, experiences an average temperature drop to a chilly 49.8°F (9.9°C).

Humidity

In April, the average relative humidity in Williamsport is 76%.

Rainfall

In Williamsport, during April, the rain falls for 13.8 days and regularly aggregates up to 3.82" (97mm) of precipitation. Throughout the year, in Williamsport, Tennessee, there are 172.4 rainfall days, and 38.43" (976mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Williamsport, Tennessee, are January through April, November and December. April is the last month it regularly snows. During 0.3 snowfall days, in April, Williamsport aggregates 0.08" (2mm) of snow. In Williamsport, Tennessee, during the entire year, snow falls for 8.9 days and aggregates up to 2.8" (71mm) of snow.

Daylight

In April, the average length of the day is 13h and 7min.
On the first day of April, sunrise is at 6:34 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 7:35 pm CDT.

Sunshine

In Williamsport, the average sunshine in April is 8.8h.

UV index

In Williamsport, the average daily maximum UV index in April is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index, 5 in April, converts into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. Around midday, solar radiation is most harmful; hence, exposure should be limited. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Frequently asked questions

What is the usual temperature for Williamsport in April?

The average high-temperature, in April, in Williamsport, is 68.9°F (20.5°C), while the average low-temperature is 49.8°F (9.9°C).

What is the average humidity in April in Williamsport?

In April, the average relative humidity is 76%.

How many days does it rain in April in Williamsport?

In April, in Williamsport, Tennessee, the rain falls for 13.8 days. Throughout April, 3.82" (97mm) of precipitation is accumulated.

What is the last month it snows in Williamsport?

April is the last month it regularly snows in Williamsport, Tennessee. During 0.3 snowfall days, in April, Williamsport aggregates 0.08" (2mm) of snow.

What is the average length of the day in April in Williamsport?

In Williamsport, the average day length in April is 13h and 7min.

What time are sunrise and sunset in April in Williamsport?

On the first day of April, sunrise is at 6:34 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 7:35 pm CDT.

How many hours of sunshine does Williamsport have in April?

In April, the average sunshine duration is 8.8h.

What is the UV index reading in April in Williamsport?

In April, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
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 April
Williamsport, TN

Average temperature in April - Williamsport, TN
  • Average high temperature in April: 68.9°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (45.3°F).

  • Average low temperature in April: 49.8°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).

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Average pressure in April
Williamsport, TN

Average pressure in April - Williamsport, TN
  • Average pressure in April: 29.99"Hg

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

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Average wind speed in April
Williamsport, TN

Average wind speed in April - Williamsport, TN
  • Average wind speed in April: 8.1mph

The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

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Average humidity in April
Williamsport, TN

Average humidity in April - Williamsport, TN
  • Average humidity in April: 76%

The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in April
Williamsport, TN

Average rainfall in April - Williamsport, TN
  • Average rainfall in April: 3.82"

The wettest months (with the highest rainfall) are February and July (4.06").
The driest month (with the least rainfall) is September (2.36").

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Average rainfall days in April
Williamsport, TN

Average rainfall days in April - Williamsport, TN
  • Average rainfall days in April: 13.8 days

The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (9.9 days).

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Average snowfall in April
Williamsport, TN

Average snowfall in April - Williamsport, TN
  • Average snowfall in April: 0.08"

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 April
Williamsport, TN

Average snowfall days in April - Williamsport, TN
  • Average snowfall days in April: 0.3 days

The months with the highest number of snowfall days are January and February (2.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in April /
Average sunshine in April
Williamsport, TN

Average daylight in April / Average sunshine in April - Williamsport, TN
  • Average daylight in April: 13h and 1min

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).

  • Average sunshine in April: 8h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

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Average sunshine days in April
Williamsport, TN

Average sunshine days in April - Williamsport, TN
  • Average sunshine days in April: 14.6 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is July (9.9 days).

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Average UV index in April
Williamsport, TN

Average UV index in April - Williamsport, TN
  • Average UV index in April: 5

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

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Average cloud cover in April
Williamsport, TN

Average cloud cover in April - Williamsport, TN
  • Average cloud cover in April: 39

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in April
Williamsport, TN

Average visibility in April - Williamsport, TN
  • Average visibility in April: 6mi

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

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Williamsport, Tennessee, USA

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