April weather forecast
Onawa Junction, IA

Share

Weather in April

April is a refreshing spring month in Onawa Junction, Iowa, with temperature in the range of an average high of 56.8°F (13.8°C) and an average low of 40.3°F (4.6°C).

Temperature

The beginning of April marks a shift in the average high-temperature, moving from March's frosty 44.2°F (6.8°C) to a refreshing 56.8°F (13.8°C). During April, Onawa Junction records a consistent average nighttime temperature of 40.3°F (4.6°C).

Humidity

April and October, with an average relative humidity of 68%, are the least humid months in Onawa Junction.

Rainfall

In Onawa Junction, during April, the rain falls for 13.4 days and regularly aggregates up to 2.09" (53mm) of precipitation. In Onawa Junction, during the entire year, the rain falls for 117 days and collects up to 19.84" (504mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Onawa Junction, during April, snow falls for 1.6 days and regularly aggregates up to 0.67" (17mm) of snow. In Onawa Junction, Iowa, during the entire year, snow falls for 36.4 days and aggregates up to 10.67" (271mm) of snow.

Daylight

In April, the average length of the day in Onawa Junction is 13h and 25min.
On the first day of the month, sunrise is at 7:02 am and sunset at 7:48 pm. On the last day of April, in Onawa Junction, sunrise is at 6:16 am and sunset at 8:22 pm CDT.

Sunshine

The average sunshine in April in Onawa Junction is 8h.

UV index

In Onawa Junction, Iowa, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: An average UV index of 4 in April transforms into this advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Onawa Junction in April?

During April, Onawa Junction experiences an average high-temperature of 56.8°F (13.8°C) and a low-temperature of 40.3°F (4.6°C).

What are the least humid months in Onawa Junction?

The months with the lowest humidity in Onawa Junction are April and October, with an average relative humidity of 68%.

What is the average humidity in April in Onawa Junction?

In Onawa Junction, Iowa, the average relative humidity in April is 68%.

How many days does it rain in April in Onawa Junction?

In Onawa Junction, in April, it is raining for 13.4 days, with typically 2.09" (53mm) of accumulated precipitation.

How much does it snow in Onawa Junction in April?

In Onawa Junction, Iowa, during April, snow falls for 1.6 days and regularly aggregates up to 0.67" (17mm) of snow.

How many hours of daylight does Onawa Junction have in April?

In Onawa Junction, Iowa, the average day length in April is 13h and 25min.

When is the sunrise / sunset in April in Onawa Junction?

On the first day of April, sunrise is at 7:02 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 8:22 pm CDT.

How long on average sun shines in April in Onawa Junction?

The average sunshine duration in April is 8h.

How high is the UV index in April in Onawa Junction?

The average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's 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
Onawa Junction, IA

Average temperature in April - Onawa Junction, IA
  • Average high temperature in April: 56.8°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (24.4°F).

  • Average low temperature in April: 40.3°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (12°F).

Average pressure in April
Onawa Junction, IA

Average pressure in April - Onawa Junction, IA
  • Average pressure in April: 29.93"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in April
Onawa Junction, IA

Average wind speed in April - Onawa Junction, IA
  • Average wind speed in April: 11.2mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).

Average humidity in April
Onawa Junction, IA

Average humidity in April - Onawa Junction, IA
  • Average humidity in April: 68%

The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April and October (68%).

Average rainfall in April
Onawa Junction, IA

Average rainfall in April - Onawa Junction, IA
  • Average rainfall in April: 2.09"

The wettest month (with the highest rainfall) is June (3.15").
The driest month (with the least rainfall) is January (0.55").

Average rainfall days in April
Onawa Junction, IA

Average rainfall days in April - Onawa Junction, IA
  • Average rainfall days in April: 13.4 days

The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (2.6 days).

Average snowfall in April
Onawa Junction, IA

Average snowfall in April - Onawa Junction, IA
  • Average snowfall in April: 0.67"

The month with the highest snowfall is February (3.19").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in April
Onawa Junction, IA

Average snowfall days in April - Onawa Junction, IA
  • Average snowfall days in April: 1.6 days

The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in April /
Average sunshine in April
Onawa Junction, IA

Average daylight in April / Average sunshine in April - Onawa Junction, IA
  • Average daylight in April: 13h and 2min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in April: 8h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in April
Onawa Junction, IA

Average sunshine days in April - Onawa Junction, IA
  • Average sunshine days in April: 13.8 days

The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (11.1 days).

Average UV index in April
Onawa Junction, IA

Average UV index in April - Onawa Junction, IA
  • Average UV index in April: 4

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in April
Onawa Junction, IA

Average cloud cover in April - Onawa Junction, IA
  • Average cloud cover in April: 44

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in April
Onawa Junction, IA

Average visibility in April - Onawa Junction, IA
  • Average visibility in April: 6mi

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

Onawa Junction, Iowa, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location