Climate and monthly weather forecastMacon, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, is an icy winter month in Macon, Illinois, with an average temperature varying between 33.6°F (0.9°C) and 21.6°F (-5.8°C). January is the coldest month, exhibiting average temperatures of 33.6°F (0.9°C) at the peak and 21.6°F (-5.8°C) at the base. Weather in January »Weather in February
The last month of the winter, February, is also a wintry month in Macon, Illinois, with an average temperature varying between 25.5°F (-3.6°C) and 38.8°F (3.8°C). With the advent of February, Macon's high-temperatures adjust to a still wintry 38.8°F (3.8°C), closely aligning with the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a fresh month in Macon, Illinois, with an average temperature varying between 50.9°F (10.5°C) and 36°F (2.2°C). As February transitions into March, a change in temperatures is observed, with average highs moving from a cold 38.8°F (3.8°C) to a cool 50.9°F (10.5°C). Weather in March »Weather in April
April in Macon, Illinois, is an enjoyable spring month, with an average temperature ranging between max 62.4°F (16.9°C) and min 46.2°F (7.9°C). An upsurge in temperatures occurs as March gives way to April, with average highs shifting from a fresh 50.9°F (10.5°C) to an enjoyable 62.4°F (16.9°C). Weather in April »Weather in May
May, the last month of the spring in Macon, is an agreeable month, with an average temperature fluctuating between 56.7°F (13.7°C) and 72.9°F (22.7°C). May's onset brings a rise in the average high-temperature, moving from a comfortable 62.4°F (16.9°C) in April to an agreeable 72.9°F (22.7°C). Weather in May »Weather in June
June, the first month of the summer in Macon, is a warm month, with an average temperature fluctuating between 64.4°F (18°C) and 81.1°F (27.3°C). The average high-temperature mildly increases in June, edging from a pleasant 72.9°F (22.7°C) in May to a moderately hot 81.1°F (27.3°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Macon, Illinois, with an average temperature varying between 82.4°F (28°C) and 66°F (18.9°C). The warmest month is July, with an average high-temperature of 82.4°F (28°C) and an average low-temperature of 66°F (18.9°C). The heat index for July is estimated at a tropical 91.4°F (33°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Macon, Illinois, with an average temperature ranging between max 81.5°F (27.5°C) and min 64°F (17.8°C). August's advent denotes a minor fluctuation in the average high-temperature to a still moderately hot 81.5°F (27.5°C) from July's 82.4°F (28°C). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Macon, Illinois, with an average temperature fluctuating between 58.5°F (14.7°C) and 77.2°F (25.1°C). The initiation of September records an average high-temperature of a still warm 77.2°F (25.1°C), displaying a near consistency with the previous month. Weather in September »Weather in October
October, the same as September, is another comfortable autumn month in Macon, Illinois, with an average temperature ranging between min 48.2°F (9°C) and max 64°F (17.8°C). In Macon, the average high-temperature in October drops from a moderately hot 77.2°F (25.1°C) in September to a comfortable 64°F (17.8°C). Weather in October »Weather in November
The last month of the autumn, November, is also a fresh month in Macon, Illinois, with temperature in the range of an average high of 50.2°F (10.1°C) and an average low of 36.3°F (2.4°C). November ushers in a slight temperature change, with average high-temperatures reducing from October's comfortable 64°F (17.8°C) to a cool 50.2°F (10.1°C). Weather in November »Weather in December
December, the first month of the winter in Macon, is also a wintry month, with an average temperature varying between 38.8°F (3.8°C) and 28.2°F (-2.1°C). Macon in December undergoes a mild reduction in the average high-temperature, shifting from November's fresh 50.2°F (10.1°C) to an icy 38.8°F (3.8°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
January, with average temperatures reaching a high of 33.6°F (0.9°C) and a low of 21.6°F (-5.8°C), is the coldest month in Macon.
In Macon, during the entire year, the rain falls for 139.6 days and collects up to 24.25" (616mm) of precipitation.
Months with snowfall in Macon are January through March, November and December.
Throughout the year, there are 23.6 snowfall days, and 8.54" (217mm) of snow is accumulated.
January has the least sunshine of the year, with an average of 4.1h of sunshine.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
The months with the least rainfall in Macon are February and December Rain falls for 6.9 days and accumulates 1.38" (35mm) of rain.
February is the month with the most snowfall in Macon. Snow falls for 6.3 days and accumulates 2.8" (71mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Macon, Illinois, 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 months with the most rainfall are April and May, with an average 2.91" (74mm) of precipitation.
April through October are months without snowfall in Macon, Illinois.
The month with the longest days in Macon, Illinois, is June, with an average of 14h and 54min of daylight.
June has the most sunshine of the year, with an average of 10.4h of sunshine.
The months with the highest UV index in Macon are June through August, with an average maximum UV index of 6.
Macon's warmest weather arrives in July, when temperatures average a high of 82.4°F (28°C) and a low of 66°F (18.9°C).
With an average relative humidity of 84%, July is the most humid month.
October is the least humid month in Macon, Illinois, with an average relative humidity of 70%.
December has the shortest days of the year in Macon, Illinois, with an average of 9h and 24min of daylight.
Average temperature
Macon, IL
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.6°F).
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure
Macon, IL
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"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:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.13"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
Macon, IL
- Average wind speed in January:
10.7mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.6mph - Average wind speed in June:
7.4mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.3mph - Average wind speed in September:
7.1mph - Average wind speed in October:
9.3mph - Average wind speed in November:
9.9mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity
Macon, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Macon, IL
- Average rainfall in January:
1.5" - Average rainfall in February:
1.38" - Average rainfall in March:
2.01" - Average rainfall in April:
2.91" - Average rainfall in May:
2.91" - Average rainfall in June:
2.83"
The wettest months (with the highest rainfall) are April and May (2.91").
The driest months (with the least rainfall) are February and December (1.38").
Average rainfall days
Macon, IL
- Average rainfall days in January:
7.3 days - Average rainfall days in February:
6.9 days - Average rainfall days in March:
12.6 days - Average rainfall days in April:
13.9 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
14.8 days - Average rainfall days in August:
13.3 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
10.3 days - Average rainfall days in November:
8.7 days - Average rainfall days in December:
7.7 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (6.9 days).
Average snowfall
Macon, IL
The month with the highest snowfall is February (2.8").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Macon, IL
- Average snowfall days in January:
7.6 days - Average snowfall days in February:
6.3 days - Average snowfall days in March:
2.8 days - Average snowfall days in April:
0.3 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 days - Average snowfall days in November:
1.7 days - Average snowfall days in December:
4.9 days
The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Macon, IL
- Average daylight in January:
9h and 42min - 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 24min - Average daylight in June:
14h and 54min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 24min
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 January:
4h and 6min - Average sunshine in February:
4h and 18min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 6min - Average sunshine in May:
9h and 12min - Average sunshine in June:
10h and 24min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
9h and 48min - Average sunshine in September:
9h and 6min - Average sunshine in October:
6h and 12min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 36min
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 6min).
Average sunshine days
Macon, IL
- Average sunshine days in January:
17.8 days - Average sunshine days in February:
15.7 days - Average sunshine days in March:
15.4 days - Average sunshine days in April:
14.7 days - Average sunshine days in May:
11.6 days - Average sunshine days in June:
12.1 days
- Average sunshine days in July:
12.3 days - Average sunshine days in August:
15.2 days - Average sunshine days in September:
17.4 days - Average sunshine days in October:
19.7 days - Average sunshine days in November:
18.9 days - Average sunshine days in December:
18.3 days
The month with the most sunshine days is October (19.7 days).
The month with the least sunshine days is May (11.6 days).
Average UV index
Macon, IL
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
Macon, IL
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are June and September (Cloud cover 30).
Average visibility
Macon, 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).
