June weather forecast
Grand River, IA

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Weather in June

The first month of the summer, June, is a warm month in Grand River, Iowa, with an average temperature varying between 63.1°F (17.3°C) and 79.9°F (26.6°C).

Temperature

June's arrival signals a temperature shift, moving from an agreeable 69.4°F (20.8°C) in May to a warm 79.9°F (26.6°C). Throughout June, Grand River records an average temperature of 63.1°F (17.3°C) at night.

Humidity

The most humid month is June, with an average relative humidity of 83%.

Rainfall

June is the month with the most rainfall. Rain falls for 17.3 days and accumulates 3.43" (87mm) of precipitation.

Snowfall

In Grand River, snow does not fall in June through September.

Daylight

The month with the longest days in Grand River, Iowa, is June, with an average of 15h and 6min of daylight.
On the first day of June, sunrise is at 5:46 am and sunset at 8:41 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:51 pm CDT.

Sunshine

The average sunshine in June is 9.7h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The UV index of 6 during June translates into the following guidance:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
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Frequently asked questions

What are the temperatures in Grand River in June?

In Grand River, 79.9°F (26.6°C) is the average high-temperature and 63.1°F (17.3°C) is the average low-temperature during June.

What is the most humid month in Grand River?

June is the most humid month, with an average relative humidity of 83%.

What is the average humidity in June in Grand River?

In June, the average relative humidity in Grand River, Iowa, is 83%.

What is the rainiest month in Grand River?

June is the month with the most rainfall in Grand River, Iowa. Rain falls for 17.3 days and accumulates 3.43" (87mm) of precipitation.

How much does it rain in Grand River in June?

In Grand River, in June, during 17.3 rainfall days, 3.43" (87mm) of precipitation is typically accumulated.

When it does not snow in Grand River?

June through September are months without snowfall.

Does it snow in Grand River in June?

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

When are the longest days in Grand River?

The month with the longest days in Grand River, Iowa, is June, with an average of 15h and 6min of daylight.

What is the average length of the day in June in Grand River?

In Grand River, the average day length in June is 15h and 4min.

When are sunrise and sunset in June in Grand River?

In June, on the first day of the month, sunrise is at 5:46 am and sunset at 8:41 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:51 pm CDT.

How long on average sun shines in June in Grand River?

In June, the average sunshine duration is 9.7h.

When is the highest UV index in Grand River?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Grand River.

How high is the UV index in June in Grand River?

In Grand River, Iowa, the average daily maximum UV index in June is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to Sun's UV rays.
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
Grand River, IA

Average temperature in June - Grand River, IA
  • Average high temperature in June: 79.9°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in June: 63.1°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

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Average pressure in June
Grand River, IA

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in June
Grand River, IA

Average wind speed in June - Grand River, IA
  • Average wind speed in June: 8mph

The windiest months (with the highest average wind speed) are January, February and March (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).

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Average humidity in June
Grand River, IA

Average humidity in June - Grand River, IA
  • Average humidity in June: 83%

The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in June
Grand River, IA

Average rainfall in June - Grand River, IA
  • Average rainfall in June: 3.43"

The wettest month (with the highest rainfall) is June (3.43").
The driest months (with the least rainfall) are January and December (0.67").

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Average rainfall days in June
Grand River, IA

Average rainfall days in June - Grand River, IA
  • Average rainfall days in June: 17.3 days

The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is January (4.8 days).

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Average snowfall in June
Grand River, IA

Average snowfall in June - Grand River, IA
  • Average snowfall in June: 0"

The month with the highest snowfall is January (2.72").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in June
Grand River, IA

Average snowfall days in June - Grand River, IA
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (8.6 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
Grand River, IA

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in June: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

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Average sunshine days in June
Grand River, IA

Average sunshine days in June - Grand River, IA
  • Average sunshine days in June: 8.9 days

The month with the most sunshine days is December (20.3 days).
The month with the least sunshine days is June (8.9 days).

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Average UV index in June
Grand River, IA

Average UV index in June - Grand River, IA
  • Average UV index in June: 6

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

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Average cloud cover in June
Grand River, IA

Average cloud cover in June - Grand River, IA
  • Average cloud cover in June: 32

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in June
Grand River, IA

Average visibility in June - Grand River, IA
  • Average visibility in June: 6mi

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

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Grand River, Iowa, USA

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