June weather forecast
Alton, FL

June, the first month of the summer in Alton, is also a hot month, with temperature in the range of an average low of 72.3°F (22.4°C) and an average high of 90.3°F (32.4°C).

Temperature

The transition into June marks the average high-temperature at a still tropical 90.3°F (32.4°C), differing minimally from May's 86.4°F (30.2°C). Throughout the month of June, Alton witnesses an average low-temperature of 72.3°F (22.4°C).

Heat index

In June, the heat index is evaluated at a blistering 111.2°F (44°C). Stay vigilant: Heat cramps along with heat exhaustion are expected. Heatstroke may follow prolonged exertion.
Heat index determinations are made taking into account the shade and light air movements. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

In June, the average relative humidity is 75%.

Rainfall

In Alton, during June, the rain falls for 22.1 days and regularly aggregates up to 4.53" (115mm) of precipitation. Throughout the year, there are 173.6 rainfall days, and 31.3" (795mm) of precipitation is accumulated.

Snowfall

January, March through December are months without snowfall.

Daylight

June has the longest days of the year, with an average of 14h and 6min of daylight.
On the first day of the month, sunrise is at 6:31 am and sunset at 8:29 pm. On the last day of June, sunrise is at 6:34 am and sunset at 8:37 pm EDT.

Sunshine

The average sunshine in June is 10.5h.

UV index

The months with the highest UV index in Alton are May through August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: A maximum UV index of 7 in June translates into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. 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. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.