June weather forecast
Sumner, OK

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Weather in June

The first month of the summer, June, is a tropical month in Sumner, Oklahoma, with an average temperature varying between 70°F (21.1°C) and 89.2°F (31.8°C).

Temperature

The shift into June is accompanied by a temperature increase, with the average high-temperature rising from a moderately hot 77.5°F (25.3°C) in May to a hot 89.2°F (31.8°C). Throughout the month of June, Sumner reports a steady low-temperature average of 70°F (21.1°C).

Heat index

June's heat index is computed to be a very hot 102.2°F (39°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Heat index values are typically calculated for conditions of shade and a light breeze. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

The average relative humidity in June in Sumner is 68%.

Rainfall

In June, the rain falls for 10.8 days. Throughout June, 1.77" (45mm) of precipitation is accumulated. In Sumner, during the entire year, the rain falls for 119.3 days and collects up to 23.27" (591mm) of precipitation.

Snowfall

April through October are months without snowfall in Sumner.

Daylight

The month with the longest days in Sumner, Oklahoma, is June, with an average of 14h and 36min of daylight.
On the first day of June, sunrise is at 6:11 am and sunset at 8:41 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 8:50 pm CDT.

Sunshine

The average sunshine in June in Sumner is 11.2h.

UV index

The months with the highest UV index in Sumner are June through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: In June, the maximum UV index of 7 suggests this advice:
Shield from overexposure. Defense against sun-related harm is required. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
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Frequently asked questions

How hot is it in Sumner in June?

The high-temperature, in June, in Sumner, is 89.2°F (31.8°C), while the low-temperature averages to 70°F (21.1°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in June is computed to be 102.2°F (39°C).

What is the average humidity in June in Sumner?

In June, the average relative humidity in Sumner is 68%.

How much does it rain in Sumner in June?

In Sumner, in June, it is raining for 10.8 days, with typically 1.77" (45mm) of accumulated precipitation.

When it does not snow in Sumner?

April through October are months without snowfall.

When are the longest days in Sumner?

With an average of 14h and 36min of daylight, June has the longest days of the year.

How many hours of daylight does Sumner have in June?

In Sumner, Oklahoma, the average day length in June is 14h and 36min.

When is the sunrise / sunset in June in Sumner?

In June, on the first day of the month, sunrise is at 6:11 am and sunset at 8:41 pm. On the last day of the month, in Sumner, sunrise is at 6:14 am and sunset at 8:50 pm CDT.

How long on average sun shines in June in Sumner?

The average sunshine duration in June in Sumner, Oklahoma, is 11.2h.

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

The months with the highest UV index in Sumner, Oklahoma, are June through August, with an average maximum UV index of 7.

How high is the UV index in June in Sumner?

In June, the average daily maximum UV index in Sumner is 7. A UV Index estimate of 6 to 7 represents a high health threat 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
Sumner, OK

Average temperature in June - Sumner, OK
  • Average high temperature in June: 89.2°F

The warmest month (with the highest average high temperature) is July (93.9°F).
The month with the lowest average high temperature is January (46.9°F).

  • Average low temperature in June: 70°F

The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

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Average pressure in June
Sumner, OK

Average pressure in June - Sumner, OK
  • Average pressure in June: 29.87"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in June
Sumner, OK

Average wind speed in June - Sumner, OK
  • Average wind speed in June: 9.9mph

The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).

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Average humidity in June
Sumner, OK

Average humidity in June - Sumner, OK
  • Average humidity in June: 68%

The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (61%).

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Average rainfall in June
Sumner, OK

Average rainfall in June - Sumner, OK
  • Average rainfall in June: 1.77"

The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is December (0.83").

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Average rainfall days in June
Sumner, OK

Average rainfall days in June - Sumner, OK
  • Average rainfall days in June: 10.8 days

The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is January (4.2 days).

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Average snowfall in June
Sumner, OK

Average snowfall in June - Sumner, OK
  • Average snowfall in June: 0"

The month with the highest snowfall is February (1.38").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in June
Sumner, OK

Average snowfall days in June - Sumner, OK
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in June /
Average sunshine in June
Sumner, OK

Average daylight in June / Average sunshine in June - Sumner, OK
  • Average daylight in June: 14h and 4min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in June: 11h and 1min

The month with the most sunshine is August (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).

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Average sunshine days in June
Sumner, OK

Average sunshine days in June - Sumner, OK
  • Average sunshine days in June: 16.7 days

The month with the most sunshine days is December (23.4 days).
The month with the least sunshine days is May (13.9 days).

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Average UV index in June
Sumner, OK

Average UV index in June - Sumner, OK
  • Average UV index in June: 7

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in June
Sumner, OK

Average cloud cover in June - Sumner, OK
  • Average cloud cover in June: 19

The month with the most cloud cover is March (Cloud cover 37).
The months with the least cloud cover are June and August (Cloud cover 19).

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Average visibility in June
Sumner, OK

Average visibility in June - Sumner, OK
  • 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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Sumner, Oklahoma, USA

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