June weather forecast
Rolla, MO

Rolla embraces summer in June, with longer days favored by an increasing number of sunshine hours. June weather paints a picture of warm, sunny days perfect for outdoor activities like swimming, hiking, or barbecues in the park. Occasionally, the clouds form and showers grace the city, but they are few and far between. Humidity is in the moderate range and provides the perfect environment for maturing flora. The temperature scales greater heights in this month, with a maximum record of 86.5°F (30.3°C).

Temperature

Rolla sees an increase in the average high-temperature with the arrival of June, moving from May's moderately hot 76.3°F (24.6°C) to a hot 86.5°F (30.3°C). Nighttime temperatures in June average to a refreshing 65.3°F (18.5°C).

Heat index

June's mean heat index is estimated at a sweltering 98.6°F (37°C). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. 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 hold great significance to children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

In June, the average relative humidity in Rolla is 74%.

Rainfall

In Rolla, Missouri, in June, it is raining for 15.8 days, with typically 3.43" (87mm) of accumulated precipitation. In Rolla, during the entire year, the rain falls for 147.2 days and collects up to 31.02" (788mm) of precipitation.

Snowfall

In Rolla, snow does not fall in May through September.

Daylight

With an average of 14h and 48min of daylight, June has the longest days of the year.
On the first day of June in Rolla, sunrise is at 5:45 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:33 pm CDT.

Sunshine

With an average of 10.6h of sunshine, June has the most sunshine of the year in Rolla.

UV index

The months with the highest UV index in Rolla are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 6 in June interprets into the following advice:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. 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. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.