June weather forecast
Mercer, IA

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Weather in June

The first month of the summer, June, is a moderately hot month in Mercer, Iowa, with an average temperature varying between 63.3°F (17.4°C) and 79.9°F (26.6°C).

Temperature

The shift into June is accompanied by a temperature increase, with the average high-temperature rising from a pleasant 70.2°F (21.2°C) in May to a warm 79.9°F (26.6°C). In the month of June, the nighttime temperature in Mercer dips to a steady average of 63.3°F (17.4°C).

Humidity

The months with the highest humidity in Mercer are January and June, with an average relative humidity of 81%.

Rainfall

June is the month with the most rainfall. Rain falls for 15.3 days and accumulates 3.74" (95mm) of precipitation.

Snowfall

May through September are months without snowfall in Mercer.

Daylight

June has the longest days of the year in Mercer, with an average of 15h and 6min of daylight.
On the first day of June in Mercer, sunrise is at 5:48 am and sunset at 8:44 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:54 pm CDT.

Sunshine

In Mercer, the average sunshine in June is 9.6h.

UV index

The months with the highest UV index in Mercer 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 exposure to the Sun's UV rays for ordinary individuals.
Note: In June, the maximum UV index of 6 transforms into these recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
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Frequently asked questions

What are the temperatures in Mercer in June?

In Mercer, 79.9°F (26.6°C) is the average high-temperature and 63.3°F (17.4°C) is the average low-temperature during June.

What are the most humid months in Mercer?

The months with the highest humidity in Mercer are January and June, with an average relative humidity of 81%.

What is the average humidity in June in Mercer?

The average relative humidity in June in Mercer, Iowa, is 81%.

What is the wettest month in Mercer?

June is the month with the most rainfall in Mercer. Rain falls for 15.3 days and accumulates 3.74" (95mm) of precipitation.

How much does it rain in Mercer in June?

In Mercer, Iowa, in June, during 15.3 rainfall days, 3.74" (95mm) of precipitation is typically accumulated.

When it does not snow in Mercer?

May through September are months without snowfall.

When are the longest days in Mercer?

With an average of 15h and 6min of daylight, June has the longest days of the year in Mercer.

What is the average length of the day in June in Mercer?

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

When is the sunrise / sunset in June in Mercer?

On the first day of June in Mercer, sunrise is at 5:48 am and sunset at 8:44 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:54 pm CDT.

How long on average sun shines in June in Mercer?

In Mercer, the average sunshine duration in June is 9.6h.

What are the months with the highest UV index in Mercer?

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

What is the UV index intensity in June in Mercer?

The average daily maximum UV index in June in Mercer is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe 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
Mercer, IA

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

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (29.3°F).

  • Average low temperature in June: 63.3°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (16°F).

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Average pressure in June
Mercer, IA

Average pressure in June - Mercer, IA
  • Average pressure in June: 29.88"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).

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Average wind speed in June
Mercer, IA

Average wind speed in June - Mercer, IA
  • Average wind speed in June: 8.2mph

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

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Average humidity in June
Mercer, IA

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

The months with the highest relative humidity are January and June (81%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in June
Mercer, IA

Average rainfall in June - Mercer, IA
  • Average rainfall in June: 3.74"

The wettest month (with the highest rainfall) is June (3.74").
The driest month (with the least rainfall) is February (0.51").

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Average rainfall days in June
Mercer, IA

Average rainfall days in June - Mercer, IA
  • Average rainfall days in June: 15.3 days

The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is February (3 days).

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Average snowfall in June
Mercer, IA

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

The month with the highest snowfall is January (2.28").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in June
Mercer, IA

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

The month with the highest number of snowfall days is January (8.4 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
Mercer, IA

Average daylight in June / Average sunshine in June - Mercer, 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 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

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Average sunshine days in June
Mercer, IA

Average sunshine days in June - Mercer, IA
  • Average sunshine days in June: 12.3 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is May (12 days).

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Average UV index in June
Mercer, IA

Average UV index in June - Mercer, 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
Mercer, IA

Average cloud cover in June - Mercer, IA
  • Average cloud cover in June: 33

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and September (Cloud cover 29).

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Average visibility in June
Mercer, IA

Average visibility in June - Mercer, 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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Mercer, Iowa, USA

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