Climate and monthly weather forecastNew Athens, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, is an icy winter month in New Athens, Illinois, with an average temperature ranging between max 38.3°F (3.5°C) and min 25.2°F (-3.8°C). January stands out as New Athens's coldest month, with temperatures ranging between an average high of 38.3°F (3.5°C) and a low of 25.2°F (-3.8°C). Weather in January »Weather in February
The last month of the winter, February, is a chilly month in New Athens, Illinois, with temperature in the range of an average high of 43.2°F (6.2°C) and an average low of 28.8°F (-1.8°C). Transitioning into February, New Athens records an average high-temperature of a chilly 43.2°F (6.2°C), almost identical to January's 38.3°F (3.5°C). Weather in February »Weather in March
March, the first month of the spring in New Athens, is a cool month, with an average temperature fluctuating between 38.1°F (3.4°C) and 54.5°F (12.5°C). As New Athens welcomes March, the average high-temperature sees a rise, transitioning from a frosty 43.2°F (6.2°C) in February to a cool 54.5°F (12.5°C). Weather in March »Weather in April
April in New Athens, Illinois, is a refreshing spring month, with an average temperature varying between 65.7°F (18.7°C) and 47.8°F (8.8°C). In April, the average high-temperature increases from a cool 54.5°F (12.5°C) in March to a refreshing 65.7°F (18.7°C). Weather in April »Weather in May
May, the last month of the spring in New Athens, is a moderately hot month, with an average temperature varying between 75°F (23.9°C) and 57.7°F (14.3°C). Noticing a change, the average high-temperature during May moves from April's comfortable 65.7°F (18.7°C) to a warm 75°F (23.9°C). Weather in May »Weather in June
The first month of the summer, June, is still a warm month in New Athens, Illinois, with an average temperature fluctuating between 66.6°F (19.2°C) and 84.7°F (29.3°C). New Athens's transition into June sees a rise in the average high-temperature, advancing from a moderately hot 75°F (23.9°C) in May to a still warm 84.7°F (29.3°C). Weather in June »Weather in July
July in New Athens, Illinois, is a hot summer month, with an average temperature ranging between max 86.5°F (30.3°C) and min 68.5°F (20.3°C). Temperature readings reach their annual highs in July, averaging 86.5°F (30.3°C) and a minimum average of 68.5°F (20.3°C). During July, the heat index is computed to be a torrid 100.4°F (38°C). Weather in July »Weather in August
August, the last month of the summer in New Athens, is another warm month, with an average temperature fluctuating between 66°F (18.9°C) and 84.7°F (29.3°C). New Athens experiences a transition to a moderately hot 84.7°F (29.3°C) in average high-temperatures with the arrival of August, not greatly differing from July's 86.5°F (30.3°C). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in New Athens, Illinois, with temperature in the range of an average low of 60.3°F (15.7°C) and an average high of 79.7°F (26.5°C). The onset of September notes an average high-temperature of a still warm 79.7°F (26.5°C), subtly shifted from August's 84.7°F (29.3°C). Weather in September »Weather in October
October, the same as September, is another refreshing autumn month in New Athens, Illinois, with temperature in the range of an average low of 49.1°F (9.5°C) and an average high of 66.7°F (19.3°C). October brings a minor decrease, with the average high-temperature reducing from a warm 79.7°F (26.5°C) in September to an enjoyable 66.7°F (19.3°C). Weather in October »Weather in November
The last month of the autumn, November, is also a fresh month in New Athens, Illinois, with an average temperature fluctuating between 37.9°F (3.3°C) and 53.6°F (12°C). A subtle decrease in the average high-temperature marks November, falling from October's enjoyable 66.7°F (19.3°C) to a cool 53.6°F (12°C). Weather in November »Weather in December
The first month of the winter, December, is also a frosty month in New Athens, Illinois, with an average temperature fluctuating between 43.3°F (6.3°C) and 31.1°F (-0.5°C). As December arrives, New Athens's weather displays a decrease in high-temperatures, transitioning from November's cool 53.6°F (12°C) to a frosty 43.3°F (6.3°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
New Athens, IL
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.3°F).
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure
New Athens, IL
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
New Athens, IL
- Average wind speed in January:
9.4mph - Average wind speed in February:
9.3mph - Average wind speed in March:
9.1mph - Average wind speed in April:
8.9mph - Average wind speed in May:
7.4mph - Average wind speed in June:
6.5mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.6mph - Average wind speed in September:
6mph - Average wind speed in October:
7.8mph - Average wind speed in November:
8.5mph - Average wind speed in December:
8.7mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).
Average humidity
New Athens, IL
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall
New Athens, IL
- Average rainfall in January:
2.4" - Average rainfall in February:
1.85" - Average rainfall in March:
2.83" - Average rainfall in April:
4.02" - Average rainfall in May:
4.37" - Average rainfall in June:
3.9"
- Average rainfall in July:
3.23" - Average rainfall in August:
3.03" - Average rainfall in September:
2.01" - Average rainfall in October:
2.99" - Average rainfall in November:
2.2" - Average rainfall in December:
2.44"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is February (1.85").
Average rainfall days
New Athens, IL
- Average rainfall days in January:
8.3 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
15.5 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
16.9 days - Average rainfall days in June:
15.5 days
- Average rainfall days in July:
16.6 days - Average rainfall days in August:
13.6 days - Average rainfall days in September:
12.2 days - Average rainfall days in October:
11.1 days - Average rainfall days in November:
10.4 days - Average rainfall days in December:
8.9 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (8.3 days).
Average snowfall
New Athens, IL
The month with the highest snowfall is January (2.24").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
New Athens, IL
- Average snowfall days in January:
6.7 days - Average snowfall days in February:
5.5 days - Average snowfall days in March:
1.4 days - Average snowfall days in April:
0.2 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:
0.1 days - Average snowfall days in October:
0 days - Average snowfall days in November:
1 days - Average snowfall days in December:
3.3 days
The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight / Average sunshine
New Athens, IL
- Average daylight in January:
9h and 54min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 48min
- Average daylight in July:
14h and 30min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - Average daylight in December:
9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
4h and 36min - Average sunshine in February:
4h and 48min - Average sunshine in March:
6h and 30min - Average sunshine in April:
8h and 36min - Average sunshine in May:
9h and 24min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
10h and 18min - Average sunshine in September:
9h and 24min - Average sunshine in October:
6h and 18min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 54min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days
New Athens, IL
- Average sunshine days in January:
16.9 days - Average sunshine days in February:
13.7 days - Average sunshine days in March:
13.7 days - Average sunshine days in April:
13 days - Average sunshine days in May:
11.9 days - Average sunshine days in June:
13.3 days
- Average sunshine days in July:
12.3 days - Average sunshine days in August:
15.5 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
18.6 days - Average sunshine days in November:
18.3 days - Average sunshine days in December:
18.4 days
The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is May (11.9 days).
Average UV index
New Athens, 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
New Athens, IL
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are June and August (Cloud cover 27).
Average visibility
New Athens, IL
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





