April weather forecast
Decatur, OH

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Weather in April

April is a refreshing spring month in Decatur, Ohio, with an average temperature varying between 45.1°F (7.3°C) and 63.9°F (17.7°C).

Temperature

April brings a temperature increase, with average high-temperatures moving from March's cool 52°F (11.1°C) to a refreshing 63.9°F (17.7°C). The average temperature drops to a frosty 45.1°F (7.3°C) during the night in the month of April.

Humidity

In April, the average relative humidity is 77%.

Rainfall

In Decatur, during April, the rain falls for 16.3 days and regularly aggregates up to 3.39" (86mm) of precipitation. Throughout the year, there are 171.5 rainfall days, and 32.6" (828mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. April is the last month it regularly snows. During 0.8 snowfall days, in April, Decatur aggregates 0.28" (7mm) of snow. In Decatur, during the entire year, snow falls for 33.5 days and aggregates up to 9.41" (239mm) of snow.

Daylight

In April, the average length of the day in Decatur is 13h and 14min.
On the first day of April, sunrise is at 7:18 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 8:26 pm EDT.

Sunshine

In Decatur, the average sunshine in April is 7.8h.

UV index

In Decatur, the average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index, 4 during April, leads to the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are April temperatures in Decatur?

Decatur in April has an average high-temperature of 63.9°F (17.7°C) and an average low-temperature of 45.1°F (7.3°C).

What is the average humidity in April in Decatur?

In Decatur, Ohio, the average relative humidity in April is 77%.

How much does it rain in Decatur in April?

In Decatur, Ohio, in April, it is raining for 16.3 days, with typically 3.39" (86mm) of accumulated precipitation.

What is the last month it snows in Decatur?

April is the last month it regularly snows in Decatur. During 0.8 snowfall days, in April, Decatur aggregates 0.28" (7mm) of snow.

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

In April, the average day length in Decatur is 13h and 14min.

When is the sunrise / sunset in April in Decatur?

On the first day of April in Decatur, Ohio, sunrise is at 7:18 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 8:26 pm EDT.

How long on average sun shines in April in Decatur?

The average sunshine duration in April is 7.8h.

How high is the UV index in April in Decatur?

The average daily maximum UV index in April in Decatur is 4. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Decatur, OH

Average temperature in April - Decatur, OH
  • Average high temperature in April: 63.9°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in April: 45.1°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).

Average pressure in April
Decatur, OH

Average pressure in April - Decatur, OH
  • Average pressure in April: 29.97"Hg

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in April
Decatur, OH

Average wind speed in April - Decatur, OH
  • Average wind speed in April: 8.4mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

Average humidity in April
Decatur, OH

Average humidity in April - Decatur, OH
  • Average humidity in April: 77%

The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are August, September, October and November (76%).

Average rainfall in April
Decatur, OH

Average rainfall in April - Decatur, OH
  • Average rainfall in April: 3.39"

The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is September (1.81").

Average rainfall days in April
Decatur, OH

Average rainfall days in April - Decatur, OH
  • Average rainfall days in April: 16.3 days

The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (10.2 days).

Average snowfall in April
Decatur, OH

Average snowfall in April - Decatur, OH
  • Average snowfall in April: 0.28"

The month with the highest snowfall is February (2.4").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in April
Decatur, OH

Average snowfall days in April - Decatur, OH
  • Average snowfall days in April: 0.8 days

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in April /
Average sunshine in April
Decatur, OH

Average daylight in April / Average sunshine in April - Decatur, OH
  • Average daylight in April: 13h and 1min

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

  • Average sunshine in April: 7h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in April
Decatur, OH

Average sunshine days in April - Decatur, OH
  • Average sunshine days in April: 11.7 days

The month with the most sunshine days is October (17.5 days).
The months with the least sunshine days are May and June (9.8 days).

Average UV index in April
Decatur, OH

Average UV index in April - Decatur, OH
  • 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, November and December (UV index 2).

Average cloud cover in April
Decatur, OH

Average cloud cover in April - Decatur, OH
  • Average cloud cover in April: 43

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in April
Decatur, OH

Average visibility in April - Decatur, OH
  • Average visibility in April: 6mi

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

Decatur, Ohio, USA

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