June weather forecast
Optima, OK

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Weather in June

June, the first month of the summer in Optima, is a hot month, with temperature in the range of an average low of 68.4°F (20.2°C) and an average high of 92.3°F (33.5°C).

Temperature

The arrival of June brings a temperature shift, with the average high-temperature escalating from a moderately hot 79.3°F (26.3°C) in May to a tropical 92.3°F (33.5°C). During June, Optima perceives a consistent contrast from the daytime highs, with an average low-temperature of 68.4°F (20.2°C).

Heat index

June's average heat index is evaluated at a very hot 96.8°F (36°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

June is the least humid month, with an average relative humidity of 44%.

Rainfall

In Optima, in June, it is raining for 10.3 days, with typically 1.81" (46mm) of accumulated precipitation. In Optima, during the entire year, the rain falls for 88.2 days and collects up to 13.39" (340mm) of precipitation.

Snowfall

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

Daylight

With an average of 14h and 36min of daylight, June has the longest days of the year.
On the first day of June in Optima, Oklahoma, sunrise is at 6:27 am and sunset at 8:59 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 9:08 pm CDT.

Sunshine

The month with the most sunshine in Optima is June, with an average of 11.7h of sunshine.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: A typical high UV index of 7 in June suggests the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
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Frequently asked questions

How hot does it get in Optima in June?

In Optima, 92.3°F (33.5°C) is the average high-temperature and 68.4°F (20.2°C) is the average low-temperature during June. In June, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 96.8°F (36°C).

What is the least humid month in Optima?

The least humid month in Optima is June, with an average relative humidity of 44%.

What is the average humidity in June in Optima?

In June, the average relative humidity is 44%.

How many days does it rain in June in Optima?

In June, in Optima, Oklahoma, the rain falls for 10.3 days. Throughout June, 1.81" (46mm) of precipitation is accumulated.

When it does not snow in Optima?

May through September are months without snowfall in Optima, Oklahoma.

When are the longest days in Optima?

The month with the longest days is June, with an average of 14h and 36min of daylight.

How many hours of daylight does Optima have in June?

The average day length in June is 14h and 38min.

What time are sunrise and sunset in June in Optima?

On the first day of June in Optima, Oklahoma, sunrise is at 6:27 am and sunset at 8:59 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 9:08 pm CDT.

What month has the most sunshine in Optima?

June has the most sunshine of the year, with an average of 11.7h of sunshine.

How long on average sun shines in June in Optima?

The average sunshine duration in June is 11.7h.

What is the month with the highest UV index in Optima?

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

What is the UV index reading in June in Optima?

The average daily maximum UV index in June in Optima is 7. A UV Index value of 6 to 7 symbolizes 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
Optima, OK

Average temperature in June - Optima, OK
  • Average high temperature in June: 92.3°F

The warmest month (with the highest average high temperature) is July (94.5°F).
The month with the lowest average high temperature is December (47.7°F).

  • Average low temperature in June: 68.4°F

The month with the highest average low temperature is July (72.1°F).
The coldest months (with the lowest average low temperature) are January and December (28.9°F).

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Average pressure in June
Optima, OK

Average pressure in June - Optima, OK
  • Average pressure in June: 29.81"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.81"Hg).

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Average wind speed in June
Optima, OK

Average wind speed in June - Optima, OK
  • Average wind speed in June: 13.4mph

The windiest month (with the highest average wind speed) is June (13.4mph).
The calmest month (with the lowest average wind speed) is January (10.6mph).

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Average humidity in June
Optima, OK

Average humidity in June - Optima, OK
  • Average humidity in June: 44%

The month with the highest relative humidity is December (56%).
The month with the lowest relative humidity is June (44%).

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Average rainfall in June
Optima, OK

Average rainfall in June - Optima, OK
  • Average rainfall in June: 1.81"

The wettest month (with the highest rainfall) is July (2.01").
The driest month (with the least rainfall) is November (0.35").

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Average rainfall days in June
Optima, OK

Average rainfall days in June - Optima, OK
  • Average rainfall days in June: 10.3 days

The month with the highest number of rainy days is July (13.5 days).
The month with the least rainy days is November (2.5 days).

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Average snowfall in June
Optima, OK

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

The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in June
Optima, OK

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

The month with the highest number of snowfall days is February (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in June / Average sunshine in June - Optima, 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 4min

The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

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Average sunshine days in June
Optima, OK

Average sunshine days in June - Optima, OK
  • Average sunshine days in June: 16.6 days

The month with the most sunshine days is January (25.5 days).
The month with the least sunshine days is July (12.7 days).

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Average UV index in June
Optima, OK

Average UV index in June - Optima, 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
Optima, OK

Average cloud cover in June - Optima, OK
  • Average cloud cover in June: 15

The month with the most cloud cover is February (Cloud cover 26).
The month with the least cloud cover is June (Cloud cover 15).

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Average visibility in June
Optima, OK

Average visibility in June - Optima, 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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Optima, Oklahoma, USA

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