April weather forecast
Garnavillo, IA

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Weather in April

April is a fresh spring month in Garnavillo, Iowa, with an average temperature fluctuating between 38.1°F (3.4°C) and 54.5°F (12.5°C).

Temperature

Garnavillo, Iowa, sees an increase in the average high-temperature with the arrival of April, moving from March's cold 42.3°F (5.7°C) to a fresh 54.5°F (12.5°C). The average nighttime temperature lowers to a cold 38.1°F (3.4°C) throughout April.

Humidity

In Garnavillo, the average relative humidity in April is 76%.

Rainfall

In Garnavillo, in April, during 15.6 rainfall days, 3.23" (82mm) of precipitation is typically accumulated. Throughout the year, there are 138 rainfall days, and 29.21" (742mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Garnavillo. In Garnavillo, Iowa, in April, snow falls for 2.3 days, with typically accumulated 1.3" (33mm) of snow. In Garnavillo, during the entire year, snow falls for 48.5 days and aggregates up to 19.76" (502mm) of snow.

Daylight

In Garnavillo, the average length of the day in April is 13h and 25min.
On the first day of the month, sunrise is at 6:45 am and sunset at 7:31 pm. On the last day of April, in Garnavillo, sunrise is at 5:59 am and sunset at 8:05 pm CDT.

Sunshine

In Garnavillo, the average sunshine in April is 7.4h.

UV index

In April, the average daily maximum UV index 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 the ordinary person.
Note: The UV index of 4 during April translates into the following guidance:
Adopt protective measures - It is advised to guard against sun damage. It's recommended to limit sun exposure when its radiation is at its peak during midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
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Frequently asked questions

What is the usual temperature for Garnavillo in April?

In April, in Garnavillo, the average high-temperature is 54.5°F (12.5°C), and the average low-temperature is 38.1°F (3.4°C).

What is the average humidity in April in Garnavillo?

The average relative humidity in April in Garnavillo is 76%.

How many days does it rain in April in Garnavillo?

In Garnavillo, in April, it is raining for 15.6 days, with typically 3.23" (82mm) of accumulated precipitation.

How much does it snow in Garnavillo in April?

In Garnavillo, Iowa, during April, snow falls for 2.3 days and regularly aggregates up to 1.3" (33mm) of snow.

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

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

What time are sunrise and sunset in April in Garnavillo?

In April, on the first day of the month, sunrise is at 6:45 am and sunset at 7:31 pm. On the last day of the month, in Garnavillo, Iowa, sunrise is at 5:59 am and sunset at 8:05 pm CDT.

How many hours of sunshine does Garnavillo have in April?

In April, the average sunshine duration in Garnavillo, Iowa, is 7.4h.

How high is the UV index in April in Garnavillo?

The average daily maximum UV index in April in Garnavillo is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Garnavillo, IA

Average temperature in April - Garnavillo, IA
  • Average high temperature in April: 54.5°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (23.5°F).

  • Average low temperature in April: 38.1°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).

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Average pressure in April
Garnavillo, IA

Average pressure in April - Garnavillo, IA
  • Average pressure in April: 29.94"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in April
Garnavillo, IA

Average wind speed in April - Garnavillo, IA
  • Average wind speed in April: 10.3mph

The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average humidity in April
Garnavillo, IA

Average humidity in April - Garnavillo, IA
  • Average humidity in April: 76%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in April
Garnavillo, IA

Average rainfall in April - Garnavillo, IA
  • Average rainfall in April: 3.23"

The wettest month (with the highest rainfall) is June (4.25").
The driest month (with the least rainfall) is January (1.1").

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Average rainfall days in April
Garnavillo, IA

Average rainfall days in April - Garnavillo, IA
  • Average rainfall days in April: 15.6 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is February (3.6 days).

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Average snowfall in April
Garnavillo, IA

Average snowfall in April - Garnavillo, IA
  • Average snowfall in April: 1.3"

The month with the highest snowfall is January (5.04").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in April
Garnavillo, IA

Average snowfall days in April - Garnavillo, IA
  • Average snowfall days in April: 2.3 days

The month with the highest number of snowfall days is January (11.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in April / Average sunshine in April - Garnavillo, 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: 7h and 2min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in April
Garnavillo, IA

Average sunshine days in April - Garnavillo, IA
  • Average sunshine days in April: 11.6 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is June (8.9 days).

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Average UV index in April
Garnavillo, IA

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

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).

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Average cloud cover in April
Garnavillo, IA

Average cloud cover in April - Garnavillo, IA
  • Average cloud cover in April: 50

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in April
Garnavillo, IA

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

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

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Garnavillo, Iowa, USA

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