June weather forecastHeavener, OK
June
Weather in June
The first month of the summer, June, is a hot month in Heavener, Oklahoma, with an average temperature varying between 68.2°F (20.1°C) and 89.8°F (32.1°C).Temperature
With the onset of June, Heavener sees a temperature rise, with the average high-temperature moving from May's moderately hot 80.1°F (26.7°C) to a hot 89.8°F (32.1°C). The average low-temperature of 68.2°F (20.1°C) in June represents a significant drop from the daily high.Heat index
The heat index in June is calculated to be an extremely hot 105.8°F (41°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.Know that the heat index computations account for shaded terrains and slight winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.
Humidity
The average relative humidity in June is 72%.Rainfall
In June, the rain falls for 12.3 days. Throughout June, 2.56" (65mm) of precipitation is accumulated. In Heavener, during the entire year, the rain falls for 146.2 days and collects up to 33.62" (854mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
The month with the longest days is June, with an average of 14h and 30min of daylight.On the first day of the month, sunrise is at 6:05 am and sunset at 8:27 pm. On the last day of June, sunrise is at 6:08 am and sunset at 8:36 pm CDT.
Sunshine
In Heavener, the average sunshine in June is 10.5h.UV index
June and July, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: A daily high UV index of 7 in June leads to these guidelines:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Heavener, OK
- Average high temperature in June: 89.8°F
The warmest month (with the highest average high temperature) is July (93.2°F).
The month with the lowest average high temperature is January (49.1°F).
- Average low temperature in June: 68.2°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).
Average pressure in June
Heavener, OK
- Average pressure in June: 29.93"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in June
Heavener, OK
- Average wind speed in June: 6.1mph
The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in June
Heavener, OK
- Average humidity in June: 72%
The months with the highest relative humidity are February, March and May (76%).
The month with the lowest relative humidity is August (69%).
Average rainfall in June
Heavener, OK
- Average rainfall in June: 2.56"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is January (1.97").
Average rainfall days in June
Heavener, OK
- Average rainfall days in June: 12.3 days
The month with the highest number of rainy days is August (14.9 days).
The month with the least rainy days is November (9 days).
Average snowfall in June
Heavener, OK
- Average snowfall in June: 0"
The month with the highest snowfall is February (1.14").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in June
Heavener, OK
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in June /
Average sunshine in June
Heavener, OK
- Average daylight in June: 14h and 30min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in June: 10h and 30min
The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in June
Heavener, OK
- Average sunshine days in June: 14.8 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (13.2 days).
Average UV index in June
Heavener, OK
- Average UV index in June: 7
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in June
Heavener, OK
- Average cloud cover in June: 25
The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are June and August (Cloud cover 25).
Average visibility in June
Heavener, 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).





