June weather forecast
Castalia, IA

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Weather in June

June, the first month of the summer in Castalia, is a warm month, with temperature in the range of an average low of 58.6°F (14.8°C) and an average high of 75.4°F (24.1°C).

Temperature

Castalia's weather shows a temperature rise with the arrival of June, moving from an enjoyable 65.8°F (18.8°C) in May to a warm 75.4°F (24.1°C). June in Castalia generally records an average low-temperature of 58.6°F (14.8°C).

Humidity

In June, the average relative humidity in Castalia is 84%.

Rainfall

The month with the most rainfall in Castalia is June, when the rain falls for 17.7 days and typically aggregates up to 4.33" (110mm) of precipitation.

Snowfall

In Castalia, snow does not fall in June through September.

Daylight

With an average of 15h and 18min of daylight, June has the longest days of the year.
On the first day of June, sunrise is at 5:29 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 5:30 am and sunset at 8:50 pm CDT.

Sunshine

In June, the average sunshine is 9.2h.

UV index

In Castalia, the average daily maximum UV index in June is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 5 during June leads to these instructions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Boost your sun resistance with garments that are densely woven yet spacious.
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Frequently asked questions

What is the temperature in June in Castalia?

In Castalia, in June, the average high-temperature is 75.4°F (24.1°C), and the average low-temperature is 58.6°F (14.8°C).

What is the average humidity in June in Castalia?

The average relative humidity in June in Castalia is 84%.

What is the rainiest month in Castalia?

The month with the most rainfall in Castalia, Iowa, is June, when the rain falls for 17.7 days and typically aggregates up to 4.33" (110mm) of precipitation.

How much does it rain in Castalia in June?

In Castalia, in June, during 17.7 rainfall days, 4.33" (110mm) of precipitation is typically accumulated.

When it does not snow in Castalia?

June through September are months without snowfall in Castalia.

Does it snow in Castalia in June?

In June, in Castalia, Iowa, it doesn't snow. May is the latest month when it typically snows.

When are the longest days in Castalia?

The month with the longest days in Castalia is June, with an average of 15h and 18min of daylight.

How many hours of daylight does Castalia have in June?

In Castalia, the average day length in June is 15h and 19min.

When are sunrise and sunset in June in Castalia?

In June, on the first day of the month, sunrise is at 5:29 am and sunset at 8:39 pm. On the last day of the month, in Castalia, Iowa, sunrise is at 5:30 am and sunset at 8:50 pm CDT.

How many hours of sunshine does Castalia have in June?

In Castalia, Iowa, the average sunshine duration in June is 9.2h.

What is the UV index intensity in June in Castalia?

In Castalia, Iowa, the average daily maximum UV index in June is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Castalia, IA

Average temperature in June - Castalia, IA
  • Average high temperature in June: 75.4°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (22.5°F).

  • Average low temperature in June: 58.6°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

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Average pressure in June
Castalia, IA

Average pressure in June - Castalia, IA
  • Average pressure in June: 29.89"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 June
Castalia, IA

Average wind speed in June - Castalia, IA
  • Average wind speed in June: 7.9mph

The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in June
Castalia, IA

Average humidity in June - Castalia, IA
  • Average humidity in June: 84%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in June
Castalia, IA

Average rainfall in June - Castalia, IA
  • Average rainfall in June: 4.33"

The wettest month (with the highest rainfall) is June (4.33").
The driest month (with the least rainfall) is January (0.98").

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Average rainfall days in June
Castalia, IA

Average rainfall days in June - Castalia, IA
  • Average rainfall days in June: 17.7 days

The month with the highest number of rainy days is June (17.7 days).
The month with the least rainy days is February (3.8 days).

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Average snowfall in June
Castalia, IA

Average snowfall in June - Castalia, IA
  • Average snowfall in June: 0"

The month with the highest snowfall is February (5.16").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in June
Castalia, IA

Average snowfall days in June - Castalia, IA
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in June /
Average sunshine in June
Castalia, IA

Average daylight in June / Average sunshine in June - Castalia, IA
  • Average daylight in June: 15h 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 June: 9h and 1min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in June
Castalia, IA

Average sunshine days in June - Castalia, IA
  • Average sunshine days in June: 10.5 days

The month with the most sunshine days is September (17 days).
The month with the least sunshine days is June (10.5 days).

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Average UV index in June
Castalia, IA

Average UV index in June - Castalia, IA
  • Average UV index in June: 5

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).

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Average cloud cover in June
Castalia, IA

Average cloud cover in June - Castalia, IA
  • Average cloud cover in June: 38

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in June
Castalia, IA

Average visibility in June - Castalia, IA
  • Average visibility in June: 6mi

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

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Castalia, Iowa, USA

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