June weather forecast
Grayson, OK

June, the first month of the summer in Grayson, is a tropical month, with temperature in the range of an average low of 69.4°F (20.8°C) and an average high of 86.9°F (30.5°C).

Temperature

As May transitions into June, Grayson sees a rise in the average high-temperature, moving from a warm 76.5°F (24.7°C) to a tropical 86.9°F (30.5°C). In Grayson, the average temperature during the nights of June drops to a pleasant 69.4°F (20.8°C).

Heat index

The average heat index in June is calculated to be a sweltering 100.4°F (38°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical to babies and toddlers. 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. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

The average relative humidity in June is 76%.

Rainfall

In June, the rain falls for 12.3 days. Throughout June, 2.24" (57mm) of precipitation is accumulated. Throughout the year, there are 136.7 rainfall days, and 30.67" (779mm) of precipitation is accumulated.

Snowfall

In Grayson, snow does not fall in May through October.

Daylight

June has the longest days of the year, with an average of 14h and 30min of daylight.
On the first day of June, sunrise is at 6:09 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 8:42 pm CDT.

Sunshine

In Grayson, the average sunshine in June is 10.5h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 7 in June transforms into the following instructions:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.