June weather forecast
Dewar, IA

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Weather in June

The first month of the summer, June, is a moderately hot month in Dewar, Iowa, with temperature in the range of an average high of 77.7°F (25.4°C) and an average low of 61.3°F (16.3°C).

Temperature

June comes with an increase, with the average high-temperature moving from an agreeable 68.2°F (20.1°C) in May to a warm 77.7°F (25.4°C). June nights in Dewar, Iowa, are marked by an average low-temperature of 61.3°F (16.3°C).

Humidity

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

Rainfall

The month with the most rainfall is June, when the rain falls for 18.1 days and typically aggregates up to 4.29" (109mm) of precipitation.

Snowfall

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

Daylight

June has the longest days of the year in Dewar, Iowa, with an average of 15h and 18min of daylight.
On the first day of the month, sunrise is at 5:33 am and sunset at 8:40 pm. On the last day of June, sunrise is at 5:35 am and sunset at 8:50 pm CDT.

Sunshine

In June, the average sunshine is 9.5h.

UV index

With an average maximum UV index of 6, June is the month with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: A typical high UV index of 6 in June suggests the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in June?

June temperatures vary between a high-temperature of 77.7°F (25.4°C) and a low-temperature of 61.3°F (16.3°C).

What is the average humidity in June?

In June, the average relative humidity is 81%.

What is the rainiest month?

June is the month with the most rainfall. Rain falls for 18.1 days and accumulates 4.29" (109mm) of precipitation.

How many days does it rain in June?

In Dewar, during June, the rain falls for 18.1 days and regularly aggregates up to 4.29" (109mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

Does it snow in June?

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

When are the longest days?

June has the longest days of the year, with an average of 15h and 18min of daylight.

What is the average length of the day in June?

The average day length in June is 15h and 15min.

When are sunrise and sunset in June?

On the first day of June, sunrise is at 5:33 am and sunset at 8:40 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:50 pm CDT.

How long on average sun shines in June?

The average sunshine duration in June in Dewar is 9.5h.

What is the month with the highest UV index?

With an average maximum UV index of 6, June is the month with the highest UV index.

What is the UV index reading in June?

The average daily maximum UV index in June is 6. A UV Index value of 6 to 7 symbolizes a high health threat 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
Dewar, IA

Average temperature in June - Dewar, IA
  • Average high temperature in June: 77.7°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (24.3°F).

  • Average low temperature in June: 61.3°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (12°F).

Average pressure in June
Dewar, IA

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in June
Dewar, IA

Average wind speed in June - Dewar, IA
  • Average wind speed in June: 8.1mph

The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest month (with the lowest average wind speed) is August (7mph).

Average humidity in June
Dewar, IA

Average humidity in June - Dewar, 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 (72%).

Average rainfall in June
Dewar, IA

Average rainfall in June - Dewar, IA
  • Average rainfall in June: 4.29"

The wettest month (with the highest rainfall) is June (4.29").
The driest months (with the least rainfall) are January and February (1.02").

Average rainfall days in June
Dewar, IA

Average rainfall days in June - Dewar, IA
  • Average rainfall days in June: 18.1 days

The month with the highest number of rainy days is June (18.1 days).
The month with the least rainy days is February (4 days).

Average snowfall in June
Dewar, IA

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

The month with the highest snowfall is January (4.21").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in June
Dewar, IA

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

The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in June / Average sunshine in June - Dewar, 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 3min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in June
Dewar, IA

Average sunshine days in June - Dewar, IA
  • Average sunshine days in June: 10 days

The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is June (10 days).

Average UV index in June
Dewar, IA

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

The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in June
Dewar, IA

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

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in June
Dewar, IA

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

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

Dewar, Iowa, USA

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