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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in Island Lake, Wisconsin, is a freezing cold winter month, with an average temperature varying between 6.1°F (-14.4°C) and 18.7°F (-7.4°C). January is the month when Island Lake sees the lowest average temperatures, with a high of 18.7°F (-7.4°C) and a low of 6.1°F (-14.4°C). Weather in January »
Weather in February
February, the last month of the winter in Island Lake, is also a subzero cold month, with an average temperature fluctuating between 22.5°F (-5.3°C) and 8.4°F (-13.1°C). Island Lake's average high-temperature in February is a still freezing cold 22.5°F (-5.3°C), marking an insignificant difference from the 18.7°F (-7.4°C) of January. Weather in February »
Weather in March
March, the first month of the spring in Island Lake, is an icy month, with an average temperature ranging between min 22.3°F (-5.4°C) and max 37.2°F (2.9°C). March witnesses a clear temperature increase, soaring from a freezing cold 22.5°F (-5.3°C) in February to a cold 37.2°F (2.9°C). Weather in March »
Weather in April
April in Island Lake, Wisconsin, is a fresh spring month, with an average temperature ranging between min 33.4°F (0.8°C) and max 50.2°F (10.1°C). April's arrival brings a change in high-temperatures, moving from an icy 37.2°F (2.9°C) in March to a cool 50.2°F (10.1°C). Weather in April »
Weather in May
May, the last month of the spring in Island Lake, is an enjoyable month, with an average temperature fluctuating between 64.6°F (18.1°C) and 45.1°F (7.3°C). May's arrival is marked by a notable elevation in high-temperatures, rising from a cool 50.2°F (10.1°C) in April to a comfortable 64.6°F (18.1°C). Weather in May »
Weather in June
June, the first month of the summer in Island Lake, is a moderately hot month, with an average temperature varying between 73.8°F (23.2°C) and 54.1°F (12.3°C). Island Lake's transition into June brings a rise in the average high-temperature, moving from a comfortable 64.6°F (18.1°C) in May to a warm 73.8°F (23.2°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Island Lake, Wisconsin, with an average temperature varying between 78.8°F (26°C) and 58.6°F (14.8°C). With average temperatures fluctuating between a high of 78.8°F (26°C) and a low of 58.6°F (14.8°C), July stands out as the warmest month. Weather in July »
Weather in August
August, the last month of the summer in Island Lake, is also a moderately hot month, with an average temperature varying between 76.6°F (24.8°C) and 56.7°F (13.7°C). The commencement of August notes an average high-temperature of a still warm 76.6°F (24.8°C), exhibiting little difference from the previous month. Weather in August »
Weather in September
September, the first month of the autumn in Island Lake, is still a pleasant month, with an average temperature varying between 68.9°F (20.5°C) and 49.5°F (9.7°C). September signals a slight drop in average high-temperature, sliding from August's moderately hot 76.6°F (24.8°C) to a pleasant 68.9°F (20.5°C). Weather in September »
Weather in October
October, like September, in Island Lake, Wisconsin, is a cool autumn month, with an average temperature varying between 53.1°F (11.7°C) and 38.3°F (3.5°C). The onset of October witnesses a clear shift in the average high-temperature, dropping from a pleasant 68.9°F (20.5°C) in September to a cool 53.1°F (11.7°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a wintry month in Island Lake, Wisconsin, with temperature in the range of an average high of 37.9°F (3.3°C) and an average low of 26.4°F (-3.1°C). November signals a considerable drop in Island Lake's average high-temperature, reducing from a cool 53.1°F (11.7°C) in October to a cold 37.9°F (3.3°C). Weather in November »
Weather in December
December, the first month of the winter in Island Lake, is also a subzero cold month, with temperature in the range of an average low of 13.8°F (-10.1°C) and an average high of 24.1°F (-4.4°C). A change in temperatures is noted as November gives way to December, with average highs reducing from a cold 37.9°F (3.3°C) to a freezing cold 24.1°F (-4.4°C). Weather in December »
Updated: Aug 27, 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
What part of the year is the coldest?
January proves to be the coldest month, recording an average maximum temperature of 18.7°F (-7.4°C) and a minimum temperature of 6.1°F (-14.4°C).
What are the most humid months?
The months with the highest humidity are January and February, with an average relative humidity of 92%.
What is the driest month?
January is the month with the least rainfall. Rain falls for 3.7 days and accumulates 0.94" (24mm) of precipitation.
How much does it rain?
In Island Lake, during the entire year, the rain falls for 137.4 days and collects up to 26.26" (667mm) of precipitation.
When does it snow?
Months with snowfall are January through May, October through December.
How many days does it snow?
Throughout the year, there are 84 snowfall days, and 33.46" (850mm) of snow is accumulated.
What are the months with the least sunshine?
The months with the least sunshine are January and February, with an average of 2.8h of sunshine.
When is the lowest UV index?
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index.
What is the snowiest month?
February is the month with the most snowfall. Snow falls for 17.2 days and accumulates 7.44" (189mm) of snow.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Island Lake, 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.
What is the least humid month?
May is the least humid month, with an average relative humidity of 76%.
When is the highest UV index?
The months with the highest UV index are May through August, with an average maximum UV index of 5.
What is the wettest month?
The month with the most rainfall is June, when the rain falls for 17.9 days and typically aggregates up to 4.06" (103mm) of precipitation.
When it does not snow?
June through September are months without snowfall.
When are the longest days?
With an average of 15h and 36min of daylight, June has the longest days of the year.
What month is the hottest?
July, marked by an average high-temperature of 78.8°F (26°C) and a low-temperature of 58.6°F (14.8°C), is the warmest month.
What month has the most sunshine?
With an average of 9.7h of sunshine, July has the most sunshine of the year.
What is the month with the shortest days?
With an average of 8h and 48min of daylight, December has the shortest days of the year.
Average temperature
Island Lake, WI
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (18.7°F).
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (6.1°F).
Average pressure
Island Lake, WI
- 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:
29.96"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
29.97"Hg - Average pressure in November:
30.06"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 (29.89"Hg).
Average wind speed
Island Lake, WI
- Average wind speed in January:
8.7mph - Average wind speed in February:
8.6mph - Average wind speed in March:
8.4mph - Average wind speed in April:
8.9mph - Average wind speed in May:
8mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.5mph - Average wind speed in October:
8.5mph - Average wind speed in November:
8.8mph - Average wind speed in December:
8.5mph
The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity
Island Lake, WI
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (76%).
Average rainfall
Island Lake, WI
- Average rainfall in January:
0.94" - Average rainfall in February:
1.14" - Average rainfall in March:
1.54" - Average rainfall in April:
2.95" - Average rainfall in May:
3.46" - Average rainfall in June:
4.06"
- Average rainfall in July:
2.48" - Average rainfall in August:
2.48" - Average rainfall in September:
1.85" - Average rainfall in October:
2.4" - Average rainfall in November:
1.34" - Average rainfall in December:
1.61"
The wettest month (with the highest rainfall) is June (4.06").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days
Island Lake, WI
- Average rainfall days in January:
3.7 days - Average rainfall days in February:
3.7 days - Average rainfall days in March:
9.8 days - Average rainfall days in April:
15 days - Average rainfall days in May:
18.3 days - Average rainfall days in June:
17.9 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
15.2 days - Average rainfall days in September:
13.2 days - Average rainfall days in October:
12 days - Average rainfall days in November:
7.9 days - Average rainfall days in December:
4.4 days
The month with the highest number of rainy days is May (18.3 days).
The months with the least rainy days are January and February (3.7 days).
Average snowfall
Island Lake, WI
- Average snowfall in January:
5.43" - Average snowfall in February:
7.44" - Average snowfall in March:
4.8" - Average snowfall in April:
3.82" - Average snowfall in May:
0.59" - Average snowfall in June:
0"
The month with the highest snowfall is February (7.44").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Island Lake, WI
- Average snowfall days in January:
17.8 days - Average snowfall days in February:
17.2 days - Average snowfall days in March:
11.8 days - Average snowfall days in April:
6.8 days - Average snowfall days in May:
0.8 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:
3.1 days - Average snowfall days in November:
10 days - Average snowfall days in December:
16.5 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Island Lake, WI
- Average daylight in January:
9h and 1min - Average daylight in February:
10h and 2min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 3min - Average daylight in May:
14h and 5min - Average daylight in June:
15h and 4min
- Average daylight in July:
15h and 1min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 3min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 3min - Average daylight in December:
8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January:
2h and 5min - Average sunshine in February:
2h and 5min - Average sunshine in March:
5h and 0min - Average sunshine in April:
7h and 0min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 1min
- Average sunshine in July:
9h and 4min - Average sunshine in August:
9h and 2min - Average sunshine in September:
8h and 2min - Average sunshine in October:
4h and 5min - Average sunshine in November:
4h and 2min - Average sunshine in December:
2h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and February (Average sunshine: 2h and 48min).
Average sunshine days
Island Lake, WI
- Average sunshine days in January:
12.4 days - Average sunshine days in February:
11 days - Average sunshine days in March:
12.6 days - Average sunshine days in April:
9.7 days - Average sunshine days in May:
9.8 days - Average sunshine days in June:
9.3 days
- Average sunshine days in July:
10.6 days - Average sunshine days in August:
13 days - Average sunshine days in September:
14.1 days - Average sunshine days in October:
15.6 days - Average sunshine days in November:
14.3 days - Average sunshine days in December:
13.5 days
The month with the most sunshine days is October (15.6 days).
The month with the least sunshine days is June (9.3 days).
Average UV index
Island Lake, WI
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover
Island Lake, WI
The months with the most cloud cover are January and February (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility
Island Lake, WI
The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
Island Lake, Wisconsin, USA
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