April weather forecast
Griffen, IA

Share

Weather in April

April is a moderate spring month in Griffen, Iowa, with an average temperature fluctuating between 58.6°F (14.8°C) and 41.9°F (5.5°C).

Temperature

April brings a temperature increase, with average high-temperatures moving from March's chilly 45.9°F (7.7°C) to a mild 58.6°F (14.8°C). In Griffen, the average temperature during the nights of April drops to a wintry 41.9°F (5.5°C).

Humidity

The average relative humidity in April is 71%.

Rainfall

In April, in Griffen, the rain falls for 13.3 days. Throughout April, 2.05" (52mm) of precipitation is accumulated. In Griffen, Iowa, during the entire year, the rain falls for 123.3 days and collects up to 20.98" (533mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In April, in Griffen, it is snowing for 1.5 days. Throughout April, 0.71" (18mm) of snow is accumulated. Throughout the year, in Griffen, Iowa, there are 39.9 snowfall days, and 10.91" (277mm) of snow is accumulated.

Daylight

The average length of the day in April in Griffen is 13h and 23min.
On the first day of April in Griffen, Iowa, sunrise is at 6:56 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 8:13 pm CDT.

Sunshine

In April, the average sunshine is 7.8h.

UV index

In April, the average daily maximum UV index in Griffen is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index, 3 during April, leads to the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
[Resources]

Frequently asked questions

What are the temperatures in Griffen in April?

The high-temperature, in April, in Griffen, is 58.6°F (14.8°C), while the low-temperature averages to 41.9°F (5.5°C).

What is the average humidity in April in Griffen?

In April, the average relative humidity in Griffen is 71%.

How much does it rain in Griffen in April?

In April, the rain falls for 13.3 days. Throughout April, 2.05" (52mm) of precipitation is accumulated.

How much does it snow in Griffen in April?

In Griffen, Iowa, in April, during 1.5 snowfall days, 0.71" (18mm) of snow is typically accumulated.

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

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

When are sunrise and sunset in April in Griffen?

In April, on the first day of the month, sunrise is at 6:56 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 8:13 pm CDT.

How many hours of sunshine does Griffen have in April?

The average sunshine duration in April in Griffen, Iowa, is 7.8h.

What is the UV index intensity in April in Griffen?

The average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Griffen, IA

Average temperature in April - Griffen, IA
  • Average high temperature in April: 58.6°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (26.4°F).

  • Average low temperature in April: 41.9°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).

[Resources]

Average pressure in April
Griffen, IA

Average pressure in April - Griffen, 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 (29.88"Hg).

[Resources]

Average wind speed in April
Griffen, IA

Average wind speed in April - Griffen, IA
  • Average wind speed in April: 10.7mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

[Resources]

Average humidity in April
Griffen, IA

Average humidity in April - Griffen, IA
  • Average humidity in April: 71%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (69%).

[Resources]

Average rainfall in April
Griffen, IA

Average rainfall in April - Griffen, IA
  • Average rainfall in April: 2.05"

The wettest month (with the highest rainfall) is June (3.35").
The driest month (with the least rainfall) is January (0.67").

[Resources]

Average rainfall days in April
Griffen, IA

Average rainfall days in April - Griffen, IA
  • Average rainfall days in April: 13.3 days

The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (3.2 days).

[Resources]

Average snowfall in April
Griffen, IA

Average snowfall in April - Griffen, IA
  • Average snowfall in April: 0.71"

The month with the highest snowfall is February (3.07").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in April
Griffen, IA

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

The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

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

Average daylight in April / Average sunshine in April - Griffen, 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 5min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

[Resources]

Average sunshine days in April
Griffen, IA

Average sunshine days in April - Griffen, IA
  • Average sunshine days in April: 13.7 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is June (10.5 days).

[Resources]

Average UV index in April
Griffen, IA

Average UV index in April - Griffen, IA
  • Average UV index in April: 3

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

[Resources]

Average cloud cover in April
Griffen, IA

Average cloud cover in April - Griffen, IA
  • Average cloud cover in April: 46

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 30).

[Resources]

Average visibility in April
Griffen, IA

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

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

[Resources]

Griffen, Iowa, USA

Weather forecast for your location

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