Climate and monthly weather forecastMazon, IL
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Mazon, Illinois, with an average temperature fluctuating between 18°F (-7.8°C) and 29.8°F (-1.2°C). With its high average temperature of 29.8°F (-1.2°C) and a low of 18°F (-7.8°C), January is regarded as the coldest month. Weather in January »Weather in February
February, the last month of the winter in Mazon, is a cold month, with an average temperature fluctuating between 33.6°F (0.9°C) and 20.8°F (-6.2°C). February's average high-temperature is a wintry 33.6°F (0.9°C), maintaining a close comparison with January's 29.8°F (-1.2°C). Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Mazon, Illinois, with an average temperature ranging between min 32.9°F (0.5°C) and max 47.5°F (8.6°C). Mazon experiences a temperature shift with the start of March, with average high-temperatures moving from an icy 33.6°F (0.9°C) in February to a chilly 47.5°F (8.6°C). Weather in March »Weather in April
April is a mild spring month in Mazon, Illinois, with an average temperature varying between 58.8°F (14.9°C) and 42.6°F (5.9°C). In Mazon, the onset of April comes with an increased average high-temperature, moving from March's frosty 47.5°F (8.6°C) to a moderate 58.8°F (14.9°C). Weather in April »Weather in May
May, the last month of the spring in Mazon, is a pleasant month, with an average temperature varying between 70.9°F (21.6°C) and 54.1°F (12.3°C). Mazon sees a rise in temperature during May, with average high-temperatures transitioning from a refreshing 58.8°F (14.9°C) in April to a pleasant 70.9°F (21.6°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Mazon, Illinois, with an average temperature varying between 79.3°F (26.3°C) and 62.2°F (16.8°C). Mazon observes a slight ascent in average high-temperatures during June, adjusting from an agreeable 70.9°F (21.6°C) in May to a moderately hot 79.3°F (26.3°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Mazon, Illinois, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 64.4°F (18°C). July is Mazon's warmest month, registering average high temperatures of 81.1°F (27.3°C) and lows of 64.4°F (18°C). For most parts of July, the heat index is estimated at a hot 87.8°F (31°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Mazon, Illinois, with an average temperature fluctuating between 79.7°F (26.5°C) and 62.2°F (16.8°C). In August, the average high-temperature registers at a still warm 79.7°F (26.5°C), nearly identical to July's 81.1°F (27.3°C). Weather in August »Weather in September
September, the first month of the autumn in Mazon, is also a moderately hot month, with an average temperature ranging between min 56.8°F (13.8°C) and max 74.8°F (23.8°C). With the advent of September, Mazon experiences an average high-temperature of a still moderately hot 74.8°F (23.8°C), mirroring a close resemblance to the previous month. Weather in September »Weather in October
October, the same as September, is another refreshing autumn month in Mazon, Illinois, with an average temperature ranging between min 46.2°F (7.9°C) and max 62.1°F (16.7°C). The start of October signals a decrease in the average high-temperature, transitioning from a warm 74.8°F (23.8°C) in September to a comfortable 62.1°F (16.7°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Mazon, Illinois, with an average temperature varying between 34.2°F (1.2°C) and 47.3°F (8.5°C). The drop of average high-temperatures is noticeable in November, with a decrease from an enjoyable 62.1°F (16.7°C) in October to a frosty 47.3°F (8.5°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Mazon, Illinois, with temperature in the range of an average high of 35.6°F (2°C) and an average low of 25.7°F (-3.5°C). As December begins, there is a decrease in the average high-temperature, falling from a frosty 47.3°F (8.5°C) in November to a wintry 35.6°F (2°C). Weather in December »Updated: Feb 12, 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
Mazon, Illinois, experiences its lowest temperatures in January, with an average peak of 29.8°F (-1.2°C) and a low of 18°F (-7.8°C).
Throughout the year, in Mazon, Illinois, there are 140.4 rainfall days, and 21.5" (546mm) of precipitation is accumulated.
January through April, October through December are months with snowfall in Mazon, Illinois.
Throughout the year, in Mazon, there are 38.1 snowfall days, and 9.13" (232mm) of snow is accumulated.
January has the least sunshine of the year in Mazon, Illinois, with an average of 3.9h of sunshine.
The months with the lowest UV index in Mazon, Illinois, are January and December, with an average maximum UV index of 1.
The month with the least rainfall is February, when the rain falls for 5.1 days and typically collects 0.98" (25mm) of precipitation.
February is the month with the most snowfall in Mazon, Illinois. Snow falls for 8.9 days and accumulates 2.52" (64mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Mazon, 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.
The month with the most rainfall is May, when the rain falls for 17.1 days and typically aggregates up to 2.91" (74mm) of precipitation.
May through September are months without snowfall in Mazon, Illinois.
With an average of 15h and 6min of daylight, June has the longest days of the year.
The month with the most sunshine in Mazon, Illinois, is June, with an average of 9.9h of sunshine.
June and July, with an average maximum UV index of 6, are months with the highest UV index in Mazon, Illinois.
July, characterized by an average high temperature of 81.1°F (27.3°C) and a low temperature of 64.4°F (18°C), is generally the warmest month.
July is the most humid month, with an average relative humidity of 84%.
With an average relative humidity of 72%, October is the least humid month in Mazon.
With an average of 9h and 18min of daylight, December has the shortest days of the year in Mazon.
Average temperature
Mazon, IL
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.8°F).
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure
Mazon, IL
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Mazon, IL
- Average wind speed in January:
10.1mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.8mph - 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:
6.2mph - Average wind speed in August:
6mph - Average wind speed in September:
7.1mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.6mph - Average wind speed in December:
9.4mph
The windiest months (with the highest average wind speed) are January and April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity
Mazon, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Mazon, IL
- Average rainfall in January:
1.06" - Average rainfall in February:
0.98" - Average rainfall in March:
1.34" - Average rainfall in April:
2.28" - Average rainfall in May:
2.91" - Average rainfall in June:
2.64"
- Average rainfall in July:
2.4" - Average rainfall in August:
2.13" - Average rainfall in September:
1.65" - Average rainfall in October:
1.97" - Average rainfall in November:
1.06" - Average rainfall in December:
1.06"
The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days
Mazon, IL
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
5.1 days - Average rainfall days in March:
11 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
16.9 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
12.2 days - Average rainfall days in October:
11.2 days - Average rainfall days in November:
8 days - Average rainfall days in December:
7.2 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (5.1 days).
Average snowfall
Mazon, IL
The month with the highest snowfall is February (2.52").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Mazon, IL
- Average snowfall days in January:
11.5 days - Average snowfall days in February:
8.9 days - Average snowfall days in March:
5.5 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:
0.3 days - Average snowfall days in November:
2.1 days - Average snowfall days in December:
8.5 days
The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Mazon, IL
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
3h and 54min - Average sunshine in February:
4h and 0min - Average sunshine in March:
6h and 12min - Average sunshine in April:
7h and 48min - Average sunshine in May:
8h and 54min - Average sunshine in June:
9h and 54min
- Average sunshine in July:
9h and 48min - Average sunshine in August:
9h and 48min - Average sunshine in September:
8h and 48min - Average sunshine in October:
6h and 0min - Average sunshine in November:
5h and 12min - Average sunshine in December:
4h and 18min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Mazon, IL
- Average sunshine days in January:
15.5 days - Average sunshine days in February:
14.3 days - Average sunshine days in March:
14.5 days - Average sunshine days in April:
12.2 days - Average sunshine days in May:
11 days - Average sunshine days in June:
10 days
- Average sunshine days in July:
9.5 days - Average sunshine days in August:
10.9 days - Average sunshine days in September:
14.9 days - Average sunshine days in October:
17.2 days - Average sunshine days in November:
19.3 days - Average sunshine days in December:
17.3 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is July (9.5 days).
Average UV index
Mazon, IL
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Mazon, IL
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility
Mazon, IL
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).
