April weather forecast
Johnson City, TN

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The front entrance to the Public Library in Johnson City, Tennessee
The front entrance to the Public Library in Johnson City, Tennessee

Weather in April

In April, Johnson City undergoes a significant weather shift as flowers bloom and wildlife becomes more active. This period marks an imminent end to frosty temperatures, with the city transitioning swiftly into warmer climes. As the mercury soars towards 64.9°F (18.3°C), residents swap their winter attire for lighter clothing. With spirited gusts of wind and longer daylight hours, April crafts a climate conducive to exploration and outdoor activities. As the month concludes, rainfall occurs sporadically, cultivating the verdant landscapes in the area.

Temperature

The arrival of April sees a shift in the average high-temperature, moving from a fresh 54.5°F (12.5°C) in March to an enjoyable 64.9°F (18.3°C). Johnson City registers a consistent average low-temperature of 44.2°F (6.8°C) during April.

Humidity

The average relative humidity in April is 77%.

Rainfall

In Johnson City, in April, during 16.8 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. Throughout the year, there are 187.8 rainfall days, and 32.76" (832mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall in Johnson City. April is the last month it regularly snows. During 1 snowfall days, in April, Johnson City aggregates 0.24" (6mm) of snow. In Johnson City, during the entire year, snow falls for 32.1 days and aggregates up to 13.31" (338mm) of snow.

Daylight

In April, the average length of the day is 13h and 8min.
On the first day of April in Johnson City, sunrise is at 7:14 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 8:16 pm EDT.

Sunshine

The average sunshine in April is 8.8h.

UV index

The average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high UV index of 4 in April translates into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are April temperatures in Johnson City?

In Johnson City, in April, the average high-temperature is 64.9°F (18.3°C), and the average low-temperature is 44.2°F (6.8°C).

What is the average humidity in April in Johnson City?

The average relative humidity in April in Johnson City is 77%.

How many days does it rain in April in Johnson City?

In Johnson City, in April, it is raining for 16.8 days, with typically 3.15" (80mm) of accumulated precipitation.

What is the last month it snows in Johnson City?

April is the last month it regularly snows. During 1 snowfall days, in April, Johnson City aggregates 0.24" (6mm) of snow.

How many hours of daylight does Johnson City have in April?

The average day length in April in Johnson City, Tennessee, is 13h and 8min.

When is the sunrise / sunset in April in Johnson City?

In April, on the first day of the month, sunrise is at 7:14 am and sunset at 7:51 pm. On the last day of the month, in Johnson City, Tennessee, sunrise is at 6:36 am and sunset at 8:16 pm EDT.

How long on average sun shines in April in Johnson City?

In April, the average sunshine duration in Johnson City is 8.8h.

What is the UV index reading in April in Johnson City?

In April, the average daily maximum UV index in Johnson City is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Johnson City, TN

Average temperature in April - Johnson City, TN
  • Average high temperature in April: 64.9°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in April: 44.2°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).

Average pressure in April
Johnson City, TN

Average pressure in April - Johnson City, TN
  • Average pressure in April: 30.01"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in April
Johnson City, TN

Average wind speed in April - Johnson City, TN
  • Average wind speed in April: 6.6mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in April
Johnson City, TN

Average humidity in April - Johnson City, TN
  • Average humidity in April: 77%

The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is November (75%).

Average rainfall in April
Johnson City, TN

Average rainfall in April - Johnson City, TN
  • Average rainfall in April: 3.15"

The wettest month (with the highest rainfall) is February (3.27").
The driest month (with the least rainfall) is September (1.77").

Average rainfall days in April
Johnson City, TN

Average rainfall days in April - Johnson City, TN
  • Average rainfall days in April: 16.8 days

The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (11.2 days).

Average snowfall in April
Johnson City, TN

Average snowfall in April - Johnson City, TN
  • Average snowfall in April: 0.24"

The month with the highest snowfall is December (3.74").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in April
Johnson City, TN

Average snowfall days in April - Johnson City, TN
  • Average snowfall days in April: 1 days

The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in April /
Average sunshine in April
Johnson City, TN

Average daylight in April / Average sunshine in April - Johnson City, TN
  • Average daylight in April: 13h 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 42min).

  • Average sunshine in April: 8h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

Average sunshine days in April
Johnson City, TN

Average sunshine days in April - Johnson City, TN
  • Average sunshine days in April: 11.8 days

The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is July (8.3 days).

Average UV index in April
Johnson City, TN

Average UV index in April - Johnson City, TN
  • Average UV index in April: 4

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

Average cloud cover in April
Johnson City, TN

Average cloud cover in April - Johnson City, TN
  • Average cloud cover in April: 39

The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are June and August (Cloud cover 31).

Average visibility in April
Johnson City, TN

Average visibility in April - Johnson City, TN
  • Average visibility in April: 6mi

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

Johnson City, Tennessee, USA

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