June weather forecastRoswell, GA

June
Weather in June
Entering into June, Roswell shakes off the spring coolness and embraces the summer warmth. The city experiences its hottest average high temperatures at 87.4°F (30.8°C). Water parks and pools around the city bustle with joyous laughter and thrills. Though occasional summer showers with 3.82" (97mm) of rain provide respite from the heat occasionally. The afternoons start to become more muggy, but the evenings remain delightfully pleasant.Temperature
A minor escalation in the average high-temperature is seen in Roswell, Georgia, with the onset of June, moving from a warm 80.2°F (26.8°C) in May to a hot 87.4°F (30.8°C). June nights experience a consistent temperature drop to an enjoyable 67.6°F (19.8°C).Heat index
June's heat index is evaluated at a sweltering 98.6°F (37°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.One should consider that heat index numbers are for shaded settings and light wind. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', comes about by integrating the temperature readings with the humidity levels. 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. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
In June, the average relative humidity is 70%.Rainfall
In Roswell, during June, the rain falls for 19.1 days and regularly aggregates up to 3.82" (97mm) of precipitation. In Roswell, during the entire year, the rain falls for 183.1 days and collects up to 45.12" (1146mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
June has the longest days of the year, with an average of 14h and 24min of daylight.On the first day of June, sunrise is at 6:26 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 8:52 pm EDT.
Sunshine
The average sunshine in June in Roswell is 10.4h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.Note: The average daily UV index of 6 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 emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Roswell, GA
- Average high temperature in June: 87.4°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (49.3°F).
- Average low temperature in June: 67.6°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 (34.2°F).
Average pressure in June
Roswell, GA
- Average pressure in June: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in June
Roswell, GA
- Average wind speed in June: 5.1mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in June
Roswell, GA
- Average humidity in June: 70%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are July and August (68%).
Average rainfall in June
Roswell, GA
- Average rainfall in June: 3.82"
The wettest month (with the highest rainfall) is August (5.55").
The driest month (with the least rainfall) is October (2.36").
Average rainfall days in June
Roswell, GA
- Average rainfall days in June: 19.1 days
The month with the highest number of rainy days is July (20.8 days).
The months with the least rainy days are October and November (10.3 days).
Average snowfall in June
Roswell, GA
- Average snowfall in June: 0"
The month with the highest snowfall is January (1.18").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in June
Roswell, GA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (1.5 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
Roswell, GA
- Average daylight in June: 14h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in June: 10h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in June
Roswell, GA
- Average sunshine days in June: 8.9 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is July (8 days).
Average UV index in June
Roswell, GA
- Average UV index in June: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in June
Roswell, GA
- Average cloud cover in June: 31
The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in June
Roswell, GA
- 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).





