June weather forecastPetersburg, IL
June
Weather in June
June, the first month of the summer in Petersburg, is a warm month, with an average temperature fluctuating between 64.2°F (17.9°C) and 81°F (27.2°C).Temperature
As June arrives, a slight rise in the average high-temperature is observed, moving from an agreeable 72.9°F (22.7°C) in May to a moderately hot 81°F (27.2°C). The temperature in Petersburg lowers to an average of 64.2°F (17.9°C) during June nights.Heat index
The heat index value during June is computed to be a tropical 86°F (30°C). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.Understand that the heat index values take into account shaded locations and mild winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Humidity
In June, the average relative humidity is 80%.Rainfall
In June, the rain falls for 16.3 days. Throughout June, 3.5" (89mm) of precipitation is accumulated. In Petersburg, Illinois, during the entire year, the rain falls for 146.4 days and collects up to 30.67" (779mm) of precipitation.Snowfall
In Petersburg, snow does not fall in May through September.Daylight
June has the longest days of the year in Petersburg, with an average of 15h and 0min of daylight.On the first day of June, sunrise is at 5:32 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:32 pm CDT.
Sunshine
With an average of 10.2h of sunshine, June has the most sunshine of the year in Petersburg, Illinois.UV index
The months with the highest UV index in Petersburg are June 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 exposure to the Sun's UV rays for ordinary individuals.Note: In June, the average maximum UV index of 6 translates into the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Petersburg, IL
- Average high temperature in June: 81°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in June: 64.2°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in June
Petersburg, IL
- Average pressure in June: 29.91"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in June
Petersburg, IL
- Average wind speed in June: 7.5mph
The windiest months (with the highest average wind speed) are January, February and April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in June
Petersburg, IL
- Average humidity in June: 80%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall in June
Petersburg, IL
- Average rainfall in June: 3.5"
The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is December (1.5").
Average rainfall days in June
Petersburg, IL
- Average rainfall days in June: 16.3 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in June
Petersburg, IL
- Average snowfall in June: 0"
The month with the highest snowfall is January (4.02").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in June
Petersburg, IL
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Petersburg, IL
- Average daylight in June: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in June: 10h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in June
Petersburg, IL
- Average sunshine days in June: 11.9 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in June
Petersburg, IL
- Average UV index in June: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in June
Petersburg, IL
- Average cloud cover in June: 31
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in June
Petersburg, IL
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
