Climate and monthly weather forecastLake Summerset, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, in Lake Summerset, Illinois, is another subzero cold winter month, with temperature in the range of an average low of 12.7°F (-10.7°C) and an average high of 24.8°F (-4°C). In Lake Summerset, the lowest average temperatures are observed in January, with a high of 24.8°F (-4°C) and a low of 12.7°F (-10.7°C). Weather in January »Weather in February
The last month of the winter, February, is another freezing cold month in Lake Summerset, Illinois, with an average temperature ranging between max 28.4°F (-2°C) and min 15.6°F (-9.1°C). Lake Summerset records an average high-temperature of a still freezing cold 28.4°F (-2°C) as February arrives, nearly mirroring the previous month's climate. Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Lake Summerset, Illinois, with an average temperature ranging between max 43°F (6.1°C) and min 28.2°F (-2.1°C). As March sets, the average high-temperature displays a significant increase, moving up from a subzero cold 28.4°F (-2°C) in February to a chilly 43°F (6.1°C). Weather in March »Weather in April
April in Lake Summerset, Illinois, is a cool spring month, with an average temperature ranging between min 38.1°F (3.4°C) and max 54.9°F (12.7°C). April indicates a change in the average high-temperature, moving up from a chilly 43°F (6.1°C) in March to a cool 54.9°F (12.7°C). Weather in April »Weather in May
The last month of the spring, May, is an enjoyable month in Lake Summerset, Illinois, with an average temperature varying between 49.6°F (9.8°C) and 66.7°F (19.3°C). May's arrival signals an increase in average high-temperatures, moving from April's fresh 54.9°F (12.7°C) to a comfortable 66.7°F (19.3°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Lake Summerset, Illinois, with temperature in the range of an average low of 58.5°F (14.7°C) and an average high of 75.7°F (24.3°C). June brings a rise in Lake Summerset's average high-temperature, moving from an enjoyable 66.7°F (19.3°C) in May to a warm 75.7°F (24.3°C). Weather in June »Weather in July
July, like June, in Lake Summerset, Illinois, is another warm summer month, with temperature in the range of an average high of 79.3°F (26.3°C) and an average low of 62.2°F (16.8°C). The month of July sees the highest average temperatures, reaching 79.3°F (26.3°C) at the peak and 62.2°F (16.8°C) at the low. Weather in July »Weather in August
August, the last month of the summer in Lake Summerset, is also a moderately hot month, with an average temperature varying between 77.7°F (25.4°C) and 59.9°F (15.5°C). As Lake Summerset steps into August, the average high-temperature is measured at a still warm 77.7°F (25.4°C), displaying minor differences from July's 79.3°F (26.3°C). Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Lake Summerset, Illinois, with an average temperature fluctuating between 72°F (22.2°C) and 52.9°F (11.6°C). As August transitions into September, Lake Summerset sees a gentle drop in the average high-temperature, transitioning from a moderately hot 77.7°F (25.4°C) to a pleasant 72°F (22.2°C). Weather in September »Weather in October
October, like September, is another refreshing autumn month in Lake Summerset, Illinois, with an average temperature varying between 58.1°F (14.5°C) and 42.1°F (5.6°C). As September shifts into October, a slight alteration in temperatures is observed, with average highs reducing from a pleasant 72°F (22.2°C) to a refreshing 58.1°F (14.5°C). Weather in October »Weather in November
November, the last month of the autumn in Lake Summerset, is another chilly month, with temperature in the range of an average low of 30.6°F (-0.8°C) and an average high of 43.7°F (6.5°C). November is marked by a significant decrease, with the average high-temperature retreating from a moderate 58.1°F (14.5°C) in October to a frosty 43.7°F (6.5°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in Lake Summerset, Illinois, with an average temperature fluctuating between 21.4°F (-5.9°C) and 31.5°F (-0.3°C). December shows a mild decline in the average high-temperature, falling from November's chilly 43.7°F (6.5°C) to a freezing cold 31.5°F (-0.3°C). Weather in December »Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Lake Summerset experiences its average lowest temperatures in January, reaching a peak of 24.8°F (-4°C) and a minimum of 12.7°F (-10.7°C).
With an average relative humidity of 88%, January is the most humid month.
The month with the least rainfall is January, when the rain falls for 2.4 days and typically collects 0.31" (8mm) of precipitation.
Throughout the year, there are 90.4 rainfall days, and 7.09" (180mm) of precipitation is accumulated.
January through April, October through December are months with snowfall.
January is the month with the most snowfall in Lake Summerset. Snow falls for 9.3 days and accumulates 1.22" (31mm) of snow.
In Lake Summerset, during the entire year, snow falls for 32.7 days and aggregates up to 3.9" (99mm) of snow.
The months with the least sunshine are January and February, with an average of 3.5h of sunshine.
January and December, with an average maximum UV index of 1, are months with the lowest UV index.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
May through September are months without snowfall.
June is the month with the most rainfall. Rain falls for 12.6 days and accumulates 0.98" (25mm) of precipitation.
June has the longest days of the year, with an average of 15h and 12min of daylight.
June is the month with the highest UV index in Lake Summerset, with an average maximum UV index of 6.
In Lake Summerset, the peak average temperatures are observed in July, with a high of 79.3°F (26.3°C) and a low of 62.2°F (16.8°C).
With an average of 9.8h of sunshine, July has the most sunshine of the year.
The least humid month is October, with an average relative humidity of 76%.
The month with the shortest days is December, with an average of 9h and 6min of daylight.
Average temperature
Lake Summerset, IL
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (24.8°F).
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure
Lake Summerset, IL
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.09"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Lake Summerset, IL
- Average wind speed in January:
9.8mph - Average wind speed in February:
9.8mph - Average wind speed in March:
9.6mph - Average wind speed in April:
10.1mph - Average wind speed in May:
8.6mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.5mph - Average wind speed in October:
9mph - Average wind speed in November:
9.8mph - Average wind speed in December:
9.4mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity
Lake Summerset, IL
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (76%).
Average rainfall
Lake Summerset, IL
- Average rainfall in January:
0.31" - Average rainfall in February:
0.35" - Average rainfall in March:
0.35" - Average rainfall in April:
0.71" - Average rainfall in May:
0.91" - Average rainfall in June:
0.98"
- Average rainfall in July:
0.83" - Average rainfall in August:
0.51" - Average rainfall in September:
0.71" - Average rainfall in October:
0.67" - Average rainfall in November:
0.39" - Average rainfall in December:
0.35"
The wettest month (with the highest rainfall) is June (0.98").
The driest month (with the least rainfall) is January (0.31").
Average rainfall days
Lake Summerset, IL
- Average rainfall days in January:
2.4 days - Average rainfall days in February:
2.4 days - Average rainfall days in March:
7.5 days - Average rainfall days in April:
10.1 days - Average rainfall days in May:
12.8 days - Average rainfall days in June:
12.6 days
- Average rainfall days in July:
10.1 days - Average rainfall days in August:
9.4 days - Average rainfall days in September:
8.1 days - Average rainfall days in October:
7.2 days - Average rainfall days in November:
4.3 days - Average rainfall days in December:
3.5 days
The month with the highest number of rainy days is May (12.8 days).
The months with the least rainy days are January and February (2.4 days).
Average snowfall
Lake Summerset, IL
The month with the highest snowfall is January (1.22").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Lake Summerset, IL
- Average snowfall days in January:
9.3 days - Average snowfall days in February:
7.7 days - Average snowfall days in March:
4.5 days - Average snowfall days in April:
1.3 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.6 days - Average snowfall days in November:
2.2 days - Average snowfall days in December:
7.1 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Lake Summerset, IL
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 6min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
3h and 30min - Average sunshine in February:
3h and 30min - Average sunshine in March:
5h and 54min - Average sunshine in April:
7h and 12min - Average sunshine in May:
8h and 18min - Average sunshine in June:
9h and 18min
- Average sunshine in July:
9h and 48min - Average sunshine in August:
9h and 42min - Average sunshine in September:
8h and 36min - Average sunshine in October:
5h and 12min - Average sunshine in November:
5h and 0min - Average sunshine in December:
3h and 54min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are January and February (Average sunshine: 3h and 30min).
Average sunshine days
Lake Summerset, IL
- Average sunshine days in January:
22.5 days - Average sunshine days in February:
20.3 days - Average sunshine days in March:
20.4 days - Average sunshine days in April:
16.8 days - Average sunshine days in May:
15.1 days - Average sunshine days in June:
13.4 days
- Average sunshine days in July:
16.6 days - Average sunshine days in August:
18.1 days - Average sunshine days in September:
19.8 days - Average sunshine days in October:
21.9 days - Average sunshine days in November:
22.9 days - Average sunshine days in December:
22.9 days
The months with the most sunshine days are November and December (22.9 days).
The month with the least sunshine days is June (13.4 days).
Average UV index
Lake Summerset, IL
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Lake Summerset, IL
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility
Lake Summerset, IL
The months with the highest visibility are February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, July, August and September (5mi).
