Contents
- Weather in June
- Frequently asked questions
- Average temperature in June
- Average pressure in June
- Average wind speed in June
- Average humidity in June
- Average rainfall in June
- Average rainfall days in June
- Average snowfall in June
- Average snowfall days in June
- Average daylight in June
- Average sunshine in June
- Average sunshine days in June
- Average UV index in June
- Average cloud cover in June
- Average visibility in June
Weather in June
Temperature
As June begins, there is an increase in the average high-temperature, moving from a warm 79.3°F (26.3°C) in May to a tropical 92.3°F (33.5°C). Despite the stark contrast with daytime temperatures, Optima's June nights average at a pleasant 68.4°F (20.2°C).Heat index
June's heat index is calculated to be a sweltering 96.8°F (36°C). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.Understand that the heat index values take into account shaded locations and mild winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
The least humid month in Optima is June, 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
May through September are months without snowfall.Daylight
June has the longest days of the year, with an average of 14h and 36min of daylight.On the first day of June, 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 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 unprotected exposure to Sun's UV rays for average individuals.Note: In June, the UV index of 7 transforms into the following advice:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in June?
What is the least humid month?
What is the average humidity in June in Optima?
How many days does it rain in June?
When it does not snow?
When are the longest days?
How many hours of daylight does Optima have in June?
What time are sunrise and sunset in June in Optima?
What month has the most sunshine?
How many hours of sunshine does Optima have in June?
What are the months with the highest UV index?
How high is the UV index in June?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Optima, Oklahoma, USA
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