June weather forecast
Union, IA

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Weather in June

June, the first month of the summer in Union, is a warm month, with temperature in the range of an average low of 61.7°F (16.5°C) and an average high of 77.5°F (25.3°C).

Temperature

Union's weather shows a temperature rise with the arrival of June, moving from a pleasant 68.4°F (20.2°C) in May to a moderately hot 77.5°F (25.3°C). Union reports an average low-temperature of 61.7°F (16.5°C) during the nights of June.

Humidity

In June, the average relative humidity is 81%.

Rainfall

In Union, in June, it is raining for 10.4 days, with typically 0.91" (23mm) of accumulated precipitation. In Union, during the entire year, the rain falls for 83.5 days and collects up to 6.5" (165mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

June has the longest days of the year, with an average of 15h and 12min of daylight.
On the first day of June, sunrise is at 5:37 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 8:52 pm CDT.

Sunshine

In June, the average sunshine is 9.6h.

UV index

The months with the highest UV index are June and July, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: A maximum high UV index of 6 in June translates into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Always opt for UVA and UVB-resistant sunglasses on radiant days.

Frequently asked questions

What is the temperature in June?

June temperatures vary between a high-temperature of 77.5°F (25.3°C) and a low-temperature of 61.7°F (16.5°C).

What is the average humidity in June?

In Union, Iowa, the average relative humidity in June is 81%.

How much does it rain in June?

In June, the rain falls for 10.4 days. Throughout June, 0.91" (23mm) of precipitation is accumulated.

When it does not snow?

In Union, snow does not fall in May through September.

When are the longest days in Union?

The month with the longest days is June, with an average of 15h and 12min of daylight.

What is the average length of the day in June?

In June, the average day length is 15h and 13min.

When are sunrise and sunset in June?

On the first day of June, sunrise is at 5:37 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 8:52 pm CDT.

How many hours of sunshine does Union have in June?

The average sunshine duration in June is 9.6h.

When is the highest UV index?

June and July, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index reading in June?

In June, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's 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
Union, IA

Average temperature in June - Union, IA
  • Average high temperature in June: 77.5°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (24.4°F).

  • Average low temperature in June: 61.7°F

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).

Average pressure in June
Union, IA

Average pressure in June - Union, IA
  • Average pressure in June: 29.89"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in June
Union, IA

Average wind speed in June - Union, IA
  • Average wind speed in June: 8.3mph

The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

Average humidity in June
Union, IA

Average humidity in June - Union, IA
  • Average humidity in June: 81%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (71%).

Average rainfall in June
Union, IA

Average rainfall in June - Union, IA
  • Average rainfall in June: 0.91"

The wettest month (with the highest rainfall) is May (1.06").
The driest months (with the least rainfall) are January and February (0.24").

Average rainfall days in June
Union, IA

Average rainfall days in June - Union, IA
  • Average rainfall days in June: 10.4 days

The month with the highest number of rainy days is May (11.6 days).
The months with the least rainy days are January and February (2 days).

Average snowfall in June
Union, IA

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

The month with the highest snowfall is February (0.79").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in June
Union, IA

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

The month with the highest number of snowfall days is January (7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

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 June: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in June
Union, IA

Average sunshine days in June - Union, IA
  • Average sunshine days in June: 15.8 days

The month with the most sunshine days is January (25.2 days).
The month with the least sunshine days is June (15.8 days).

Average UV index in June
Union, IA

Average UV index in June - Union, IA
  • Average UV index in June: 6

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).

Average cloud cover in June
Union, IA

Average cloud cover in June - Union, IA
  • Average cloud cover in June: 36

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 31).

Average visibility in June
Union, IA

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

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

Union, Iowa, USA

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