April weather forecast
Fort Madison, IA

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Weather in April

The arrival of April in Fort Madison brings with it a noticeable change in weather parameters. The city welcomes spring with balmier temperatures, increased daylight hours, and diminished snowfall. The wind still persists, but at a lower speed compared to the harsh gusts witnessed in the previous months. Bloom season gets heartily underway as the scenery becomes more green and vibrant. Monthly temperatures implement further rises, evident from 44.2°F (6.8°C) to 61.2°F (16.2°C).

Temperature

As Fort Madison transitions into April, a rise in the average high-temperature is observed, moving from a frosty 49.5°F (9.7°C) in March to a refreshing 61.2°F (16.2°C). Throughout the April nights, Fort Madison encounters a low-temperature of 44.2°F (6.8°C).

Humidity

The average relative humidity in April is 74%.

Rainfall

In Fort Madison, in April, it is raining for 11.3 days, with typically 1.18" (30mm) of accumulated precipitation. Throughout the year, there are 101.8 rainfall days, and 9.92" (252mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 0.8 snowfall days, in April, Fort Madison aggregates 0.59" (15mm) of snow. In Fort Madison, during the entire year, snow falls for 24.5 days and aggregates up to 4.25" (108mm) of snow.

Daylight

In April, the average length of the day is 13h and 19min.
On the first day of the month, sunrise is at 6:47 am and sunset at 7:30 pm. On the last day of April, sunrise is at 6:04 am and sunset at 8:00 pm CDT.

Sunshine

In Fort Madison, the average sunshine in April is 8.2h.

UV index

In April, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: During April, 4 as the daily maximum UV index converts into the following advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Updated: Jul 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in April?

Fort Madison in April has an average high-temperature of 61.2°F (16.2°C) and an average low-temperature of 44.2°F (6.8°C).

What is the average humidity in April?

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

How much does it rain in April?

In Fort Madison, in April, during 11.3 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

What is the last month it snows?

April is the last month it regularly snows in Fort Madison. During 0.8 snowfall days, in April, Fort Madison aggregates 0.59" (15mm) of snow.

What is the average length of the day in April?

In Fort Madison, the average day length in April is 13h and 19min.

When are sunrise and sunset in April?

In April, on the first day of the month, sunrise is at 6:47 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 8:00 pm CDT.

How long on average sun shines in April?

In April, the average sunshine duration is 8.2h.

How high is the UV index in April?

In Fort Madison, the average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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
Fort Madison, IA

Average temperature in April - Fort Madison, IA
  • Average high temperature in April: 61.2°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (30.4°F).

  • Average low temperature in April: 44.2°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average pressure in April
Fort Madison, IA

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in April
Fort Madison, IA

Average wind speed in April - Fort Madison, IA
  • Average wind speed in April: 10.4mph

The windiest months (with the highest average wind speed) are January, February, March and April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).

Average humidity in April
Fort Madison, IA

Average humidity in April - Fort Madison, IA
  • Average humidity in April: 74%

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in April
Fort Madison, IA

Average rainfall in April - Fort Madison, IA
  • Average rainfall in April: 1.18"

The wettest month (with the highest rainfall) is May (1.46").
The driest months (with the least rainfall) are January and December (0.47").

Average rainfall days in April
Fort Madison, IA

Average rainfall days in April - Fort Madison, IA
  • Average rainfall days in April: 11.3 days

The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is February (3.5 days).

Average snowfall in April
Fort Madison, IA

Average snowfall in April - Fort Madison, IA
  • Average snowfall in April: 0.59"

The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in April
Fort Madison, IA

Average snowfall days in April - Fort Madison, IA
  • Average snowfall days in April: 0.8 days

The month with the highest number of snowfall days is January (7.7 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
Fort Madison, IA

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in April: 8h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in April
Fort Madison, IA

Average sunshine days in April - Fort Madison, IA
  • Average sunshine days in April: 16.8 days

The month with the most sunshine days is December (22.9 days).
The month with the least sunshine days is May (14 days).

Average UV index in April
Fort Madison, IA

Average UV index in April - Fort Madison, IA
  • 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
Fort Madison, IA

Average cloud cover in April - Fort Madison, IA
  • Average cloud cover in April: 44

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July, August and September (Cloud cover 28).

Average visibility in April
Fort Madison, IA

Average visibility in April - Fort Madison, 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).

Fort Madison, Iowa, USA

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