June weather forecast
Rochester, IL

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Weather in June

June, the first month of the summer in Rochester, is a warm month, with an average temperature varying between 64.6°F (18.1°C) and 81.1°F (27.3°C).

Temperature

June's arrival brings a slight change in high-temperatures, adjusting from a pleasant 72.9°F (22.7°C) in May to a warm 81.1°F (27.3°C). In the month of June, Rochester's average low-temperature falls to an enjoyable 64.6°F (18.1°C).

Heat index

The heat index in June is calculated to be a hot 86°F (30°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.
Observations indicate that the heat index values are for shady locations with light wind. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

Humidity

The average relative humidity in June is 80%.

Rainfall

In Rochester, in June, it is raining for 15.6 days, with typically 2.56" (65mm) of accumulated precipitation. In Rochester, during the entire year, the rain falls for 141.7 days and collects up to 22.72" (577mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The month with the longest days is June, with an average of 14h and 54min of daylight.
On the first day of the month, sunrise is at 5:31 am and sunset at 8:20 pm. On the last day of June, sunrise is at 5:33 am and sunset at 8:30 pm CDT.

Sunshine

The month with the most sunshine is June, with an average of 10.4h of sunshine.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. 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: In June, the average maximum UV index of 6 translates into the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Updated: Jun 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are June temperatures?

Rochester in June has an average high-temperature of 81.1°F (27.3°C) and an average low-temperature of 64.6°F (18.1°C). In June, the average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, is calculated to be 86°F (30°C).

What is the average humidity in June?

In June, the average relative humidity is 80%.

How many days does it rain in June?

In Rochester, in June, during 15.6 rainfall days, 2.56" (65mm) of precipitation is typically accumulated.

When it does not snow?

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

When are the longest days?

June has the longest days of the year, with an average of 14h and 54min of daylight.

What is the average length of the day in June?

The average day length in June in Rochester is 14h and 56min.

What time are sunrise and sunset in June?

On the first day of June, sunrise is at 5:31 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:30 pm CDT.

What month has the most sunshine in Rochester?

The month with the most sunshine is June, with an average of 10.4h of sunshine.

How many hours of sunshine does Rochester have in June?

In Rochester, the average sunshine duration in June is 10.4h.

What is the month with the highest UV index in Rochester?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

How high is the UV index in June?

The average daily maximum UV index in June is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Rochester, IL

Average temperature in June - Rochester, IL
  • Average high temperature in June: 81.1°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 (33.4°F).

  • Average low temperature in June: 64.6°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).

Average pressure in June
Rochester, IL

Average pressure in June - Rochester, IL
  • Average pressure in June: 29.92"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in June
Rochester, IL

Average wind speed in June - Rochester, IL
  • Average wind speed in June: 7.3mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in June
Rochester, IL

Average humidity in June - Rochester, 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
Rochester, IL

Average rainfall in June - Rochester, IL
  • Average rainfall in June: 2.56"

The wettest month (with the highest rainfall) is April (2.64").
The driest month (with the least rainfall) is December (1.14").

Average rainfall days in June
Rochester, IL

Average rainfall days in June - Rochester, IL
  • Average rainfall days in June: 15.6 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (6.2 days).

Average snowfall in June
Rochester, IL

Average snowfall in June - Rochester, IL
  • Average snowfall in June: 0"

The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in June
Rochester, IL

Average snowfall days in June - Rochester, IL
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (8.3 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
Rochester, IL

Average daylight in June / Average sunshine in June - Rochester, IL
  • Average daylight in June: 14h and 5min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in June: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in June
Rochester, IL

Average sunshine days in June - Rochester, IL
  • Average sunshine days in June: 11.8 days

The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is July (11 days).

Average UV index in June
Rochester, IL

Average UV index in June - Rochester, 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
Rochester, IL

Average cloud cover in June - Rochester, IL
  • Average cloud cover in June: 29

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in June
Rochester, IL

Average visibility in June - Rochester, 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).

Rochester, Illinois, USA

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