April weather forecast
Shellsburg, IA

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Weather in April

April is a mild spring month in Shellsburg, Iowa, with an average temperature fluctuating between 40.6°F (4.8°C) and 57°F (13.9°C).

Temperature

Entering April, Shellsburg sees a temperature rise, with the average high-temperature advancing from March's frosty 44.2°F (6.8°C) to a mild 57°F (13.9°C). Throughout April, the temperature tends to fall to a consistent average low of 40.6°F (4.8°C).

Humidity

In April, the average relative humidity is 74%.

Rainfall

In Shellsburg, in April, during 15.3 rainfall days, 3.19" (81mm) of precipitation is typically accumulated. In Shellsburg, during the entire year, the rain falls for 138.6 days and collects up to 27.8" (706mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Shellsburg, in April, snow falls for 1.5 days, with typically accumulated 0.75" (19mm) of snow. Throughout the year, there are 41.2 snowfall days, and 16.73" (425mm) of snow is accumulated.

Daylight

In April, the average length of the day is 13h and 23min.
On the first day of the month, sunrise is at 6:48 am and sunset at 7:33 pm. On the last day of April, sunrise is at 6:03 am and sunset at 8:05 pm CDT.

Sunshine

In April, the average sunshine is 7.6h.

UV index

The average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: A typical high UV index of 4 in April suggests the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in April?

The average high-temperature, in April, in Shellsburg, is 57°F (13.9°C), while the average low-temperature is 40.6°F (4.8°C).

What is the average humidity in April?

In Shellsburg, the average relative humidity in April is 74%.

How many days does it rain in April?

In Shellsburg, Iowa, in April, during 15.3 rainfall days, 3.19" (81mm) of precipitation is typically accumulated.

How much does it snow in April?

In Shellsburg, in April, snow falls for 1.5 days, with typically accumulated 0.75" (19mm) of snow.

What is the average length of the day in April?

In April, the average day length is 13h and 23min.

When is the sunrise / sunset in April in Shellsburg?

On the first day of April, sunrise is at 6:48 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 8:05 pm CDT.

How many hours of sunshine does Shellsburg have in April?

In Shellsburg, the average sunshine duration in April is 7.6h.

What is the UV index intensity in April?

The average daily maximum UV index in April 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
Shellsburg, IA

Average temperature in April - Shellsburg, IA
  • Average high temperature in April: 57°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.3°F).

  • Average low temperature in April: 40.6°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

Average pressure in April
Shellsburg, IA

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in April
Shellsburg, IA

Average wind speed in April - Shellsburg, IA
  • Average wind speed in April: 10.8mph

The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

Average humidity in April
Shellsburg, IA

Average humidity in April - Shellsburg, IA
  • Average humidity in April: 74%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (73%).

Average rainfall in April
Shellsburg, IA

Average rainfall in April - Shellsburg, IA
  • Average rainfall in April: 3.19"

The wettest month (with the highest rainfall) is May (4.37").
The driest months (with the least rainfall) are January and February (1.18").

Average rainfall days in April
Shellsburg, IA

Average rainfall days in April - Shellsburg, IA
  • Average rainfall days in April: 15.3 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (4.8 days).

Average snowfall in April
Shellsburg, IA

Average snowfall in April - Shellsburg, IA
  • Average snowfall in April: 0.75"

The month with the highest snowfall is January (5.43").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in April
Shellsburg, IA

Average snowfall days in April - Shellsburg, IA
  • Average snowfall days in April: 1.5 days

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in April /
Average sunshine in April
Shellsburg, IA

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

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in April: 7h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in April
Shellsburg, IA

Average sunshine days in April - Shellsburg, IA
  • Average sunshine days in April: 11.9 days

The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is June (9.9 days).

Average UV index in April
Shellsburg, IA

Average UV index in April - Shellsburg, IA
  • Average UV index in April: 4

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in April
Shellsburg, IA

Average cloud cover in April - Shellsburg, IA
  • Average cloud cover in April: 47

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in April
Shellsburg, IA

Average visibility in April - Shellsburg, IA
  • Average visibility in April: 6mi

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

Shellsburg, Iowa, USA

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