April weather forecast
Iona, ID

Weather in April

April is a cool spring month in Iona, Idaho, with average temperature ranging between max 53.6°F (12°C) and min 34.3°F (1.3°C).

Temperature

In Iona, the average high-temperature increases, from a frosty 43°F (6.1°C) in March, to a fresh 53.6°F (12°C). In Iona, the average low-temperature is 34.3°F (1.3°C).

Humidity

In April, the average relative humidity in Iona is 58%.

Rainfall

In April, the rain falls for 9.5 days. Throughout April, 0.63" (16mm) of precipitation is accumulated. In Iona, Idaho, during the entire year, the rain falls for 84.3 days and collects up to 6.97" (177mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall in Iona. In Iona, during April, snow falls for 3.3 days and regularly aggregates up to 0.91" (23mm) of snow. Throughout the year, in Iona, there are 54.4 snowfall days, and 16.89" (429mm) of snow is accumulated.

Daylight

The average length of the day in April is 13.5h.

Sunshine

In Iona, Idaho, the average sunshine is 9.9h.

UV index

The average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to the UV radiation for ordinary individuals.
Note: In April, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in April in Iona?

In April, the average relative humidity in Iona is 58%.

How many days does it rain in April in Iona?

In Iona, Idaho, during April, the rain falls for 9.5 days and regularly aggregates up to 0.63" (16mm) of precipitation.

How much does it snow in Iona in April?

In Iona, in April, during 3.3 snowfall days, 0.91" (23mm) of snow is typically accumulated.

How many hours of daylight does Iona have in April?

In Iona, the average length of the day in April is 13.5h.

How long on average sun shines in April in Iona?

The average sunshine in April in Iona, Idaho, is 9.9h.

What is the UV index reading in April in Iona?

The average daily maximum UV index in April in Iona, Idaho, is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to the UV radiation.

Average temperature in April
Iona, ID

Average temperature in April - Iona, ID
  • Average high temperature in April: 53.6°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is December (27.9°F).

  • Average low temperature in April: 34.3°F

The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is January (14.2°F).

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Average pressure in April
Iona, ID

Average pressure in April - Iona, ID
  • Average pressure in April: 29.96"

The month with the highest atmospheric pressure is January (30.3").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed in April
Iona, ID

Average wind speed in April - Iona, ID
  • Average wind speed in April: 9mph

The windiest month (with the highest average wind speed) is April (9mph).
The calmest month (with the lowest average wind speed) is January (5.8mph).

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Average humidity in April
Iona, ID

Average humidity in April - Iona, ID
  • Average humidity in April: 58%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (35%).

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Average rainfall in April
Iona, ID

Average rainfall in April - Iona, ID
  • Average rainfall in April: 0.63"

The wettest months (with the highest rainfall) are May and September (0.83").
The driest month (with the least rainfall) is July (0.35").

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Average rainfall days in April
Iona, ID

Average rainfall days in April - Iona, ID
  • Average rainfall days in April: 9.5 days

The month with the highest number of rainy days is May (10.7 days).
The month with the least rainy days is January (3.7 days).

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Average snowfall in April
Iona, ID

Average snowfall in April - Iona, ID
  • Average snowfall in April: 0.91"

The month with the highest snowfall is January (3.86").
Months with the least snowfall are June, July and August (0").

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Average snowfall days in April
Iona, ID

Average snowfall days in April - Iona, ID
  • Average snowfall days in April: 3.3 days

The month with the highest number of snowfall days is December (12.9 days).
Months with the least snowfall days are June, July and August (0 days).

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Average daylight in April /
Average sunshine in April
Iona, ID

Average daylight in April / Average sunshine in April - Iona, ID
  • Average daylight in April: 13.5h

The month with the longest days is June (Average daylight: 15.4h).
The month with the shortest days is December (Average daylight: 9h).

  • Average sunshine in April: 9.9h

The month with the most sunshine is July (Average sunshine: 11.8h).
The month with the least sunshine is January (Average sunshine: 4.7h).

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Average sunshine days in April
Iona, ID

Average sunshine days in April - Iona, ID
  • Average sunshine days in April: 16.6 days

The month with the most sunshine days is October (22.1 days).
The month with the least sunshine days is February (16.2 days).

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Average UV index in April
Iona, ID

Average UV index in April - Iona, ID
  • Average UV index in April: 3

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in April
Iona, ID

Average cloud cover in April - Iona, ID
  • Average cloud cover in April: 32

Months with the most cloud cover are January and February (Cloud cover 51).
Months with the least cloud cover are July and August (Cloud cover 11).

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Average visibility in April
Iona, ID

Average visibility in April - Iona, ID
  • Average visibility in April: 6mi

Months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
Months with the lowest visibility are January and February (4mi).

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