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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, is a wintry winter month in Oconee, Illinois, with temperature in the range of an average high of 34.3°F (1.3°C) and an average low of 22.1°F (-5.5°C). In Oconee, the lowest temperatures are generally noted in January, averaging a high of 34.3°F (1.3°C) and a low of 22.1°F (-5.5°C). Weather in January »
Weather in February
The last month of the winter, February, is another cold month in Oconee, Illinois, with an average temperature varying between 25.9°F (-3.4°C) and 39.2°F (4°C). Oconee, Illinois, starts February with an average high-temperature of a still cold 39.2°F (4°C), a minor shift from January's 34.3°F (1.3°C). Weather in February »
Weather in March
March, the first month of the spring in Oconee, is a cool month, with an average temperature fluctuating between 36.1°F (2.3°C) and 51.4°F (10.8°C). March brings a temperature increase, with average high-temperatures moving from February's cold 39.2°F (4°C) to a fresh 51.4°F (10.8°C). Weather in March »
Weather in April
April is a comfortable spring month in Oconee, Illinois, with an average temperature varying between 63.1°F (17.3°C) and 46.6°F (8.1°C). As Oconee, Illinois, transitions into April, the average high-temperature is observed to rise from a cool 51.4°F (10.8°C) in March to an enjoyable 63.1°F (17.3°C). Weather in April »
Weather in May
May, the last month of the spring in Oconee, is a pleasant month, with an average temperature fluctuating between 57°F (13.9°C) and 73°F (22.8°C). The arrival of May brings a temperature shift, with the average high-temperature escalating from a comfortable 63.1°F (17.3°C) in April to a pleasant 73°F (22.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Oconee, Illinois, with an average temperature varying between 64.9°F (18.3°C) and 81.1°F (27.3°C). The beginning of June signals a minor rise in the average high-temperature, moving from a pleasant 73°F (22.8°C) in May to a warm 81.1°F (27.3°C). Weather in June »
Weather in July
July, like June, in Oconee, Illinois, is another warm summer month, with an average temperature fluctuating between 83.1°F (28.4°C) and 66.6°F (19.2°C). The warmest time of the year is July, with temperatures averaging a high of 83.1°F (28.4°C) and a low of 66.6°F (19.2°C). For July, the heat index is evaluated at a tropical 93.2°F (34°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Oconee, Illinois, with an average temperature ranging between max 81.9°F (27.7°C) and min 64.9°F (18.3°C). The arrival of August brings an average high-temperature of a still moderately hot 81.9°F (27.7°C), subtly diverging from July's 83.1°F (28.4°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Oconee, Illinois, with temperature in the range of an average low of 58.8°F (14.9°C) and an average high of 77.4°F (25.2°C). As September takes hold, the average high-temperature is a still warm 77.4°F (25.2°C), nearly mirroring that of the previous month. Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Oconee, Illinois, with an average temperature fluctuating between 48.2°F (9°C) and 64.2°F (17.9°C). Oconee's October weather comes with a decrease in average high-temperatures, moving from a moderately hot 77.4°F (25.2°C) in September to a refreshing 64.2°F (17.9°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Oconee, Illinois, with an average temperature ranging between max 50.7°F (10.4°C) and min 36.5°F (2.5°C). November brings a drop in Oconee's average high-temperature, falling from a refreshing 64.2°F (17.9°C) in October to a cool 50.7°F (10.4°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Oconee, Illinois, with temperature in the range of an average high of 39.6°F (4.2°C) and an average low of 28.4°F (-2°C). As November shifts into December, a slight alteration in temperatures is observed, with average highs reducing from a cool 50.7°F (10.4°C) to a wintry 39.6°F (4.2°C). Weather in December »
[Resources]Frequently asked questions
What month is the coldest in Oconee?
January, having an average high-temperature of 34.3°F (1.3°C) and an average low-temperature of 22.1°F (-5.5°C), is the coldest month.
How many days does it rain in Oconee?
In Oconee, Illinois, during the entire year, the rain falls for 129.9 days and collects up to 17.6" (447mm) of precipitation.
When does it snow in Oconee?
January through April, November and December are months with snowfall in Oconee.
How many days does it snow in Oconee?
In Oconee, during the entire year, snow falls for 21.4 days and aggregates up to 5.2" (132mm) of snow.
What is the month with the least sunshine in Oconee?
With an average of 4.2h of sunshine, January has the least sunshine of the year.
When is the lowest UV index in Oconee?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Oconee.
What is the driest month in Oconee?
February and December are months with the least rain when the rain falls for 6.7 days and typically aggregates up to 0.98" (25mm) of rain.
What is the snowiest month in Oconee?
The month with the most snowfall in Oconee, Illinois, is February, when snow falls for 6.3 days and typically aggregates up to 1.93" (49mm) of snow.
When is Daylight Saving Time (DST) in Oconee?
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.
When it does not snow in Oconee?
In Oconee, snow does not fall in May through October.
What is the wettest month in Oconee?
The month with the most rainfall is June, when the rain falls for 13.5 days and typically aggregates up to 2.2" (56mm) of precipitation.
When are the longest days in Oconee?
The month with the longest days is June, with an average of 14h and 54min of daylight.
What month has the most sunshine in Oconee?
The month with the most sunshine is June, with an average of 10.4h of sunshine.
What is the month with the highest UV index in Oconee?
The months with the highest UV index in Oconee are June through August, with an average maximum UV index of 6.
What is the hottest time of year in Oconee?
Oconee, Illinois, registers the average highest temperatures during July, with peaks of 83.1°F (28.4°C) and lows of 66.6°F (19.2°C).
What is the most humid month in Oconee?
The most humid month in Oconee, Illinois, is July, with an average relative humidity of 83%.
What is the least humid month in Oconee?
With an average relative humidity of 70%, October is the least humid month in Oconee.
What is the month with the shortest days in Oconee?
With an average of 9h and 30min of daylight, December has the shortest days of the year in Oconee, Illinois.
Average temperature
Oconee, IL
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34.3°F).
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure
Oconee, 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
Oconee, IL
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.1mph - Average wind speed in April:
10.3mph - Average wind speed in May:
8.5mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6.1mph - Average wind speed in August:
6.2mph - Average wind speed in September:
6.9mph - Average wind speed in October:
9mph - Average wind speed in November:
9.8mph - Average wind speed in December:
9.8mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity
Oconee, IL
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Oconee, IL
- Average rainfall in January:
1.14" - Average rainfall in February:
0.98" - Average rainfall in March:
1.38" - Average rainfall in April:
2.13" - Average rainfall in May:
1.93" - Average rainfall in June:
2.2"
- Average rainfall in July:
1.77" - Average rainfall in August:
1.61" - Average rainfall in September:
1.06" - Average rainfall in October:
1.38" - Average rainfall in November:
1.02" - Average rainfall in December:
0.98"
The wettest month (with the highest rainfall) is June (2.2").
The driest months (with the least rainfall) are February and December (0.98").
Average rainfall days
Oconee, IL
- Average rainfall days in January:
5.9 days - Average rainfall days in February:
6.7 days - Average rainfall days in March:
11.5 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
15.2 days - Average rainfall days in June:
13.5 days
- Average rainfall days in July:
14.2 days - Average rainfall days in August:
12.6 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
9.3 days - Average rainfall days in November:
8.2 days - Average rainfall days in December:
7.5 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (5.9 days).
Average snowfall
Oconee, IL
The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Oconee, IL
- Average snowfall days in January:
6.3 days - Average snowfall days in February:
6.3 days - Average snowfall days in March:
2.7 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:
0.1 days - Average snowfall days in November:
1.4 days - Average snowfall days in December:
4.3 days
The months with the highest number of snowfall days are January and February (6.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Oconee, IL
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 3min
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 30min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 1min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 1min - Average sunshine in October:
6h and 1min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 4min
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 12min).
Average sunshine days
Oconee, IL
- Average sunshine days in January:
20.2 days - Average sunshine days in February:
16 days - Average sunshine days in March:
16.3 days - Average sunshine days in April:
14.2 days - Average sunshine days in May:
13.1 days - Average sunshine days in June:
13.3 days
- Average sunshine days in July:
13.9 days - Average sunshine days in August:
15.4 days - Average sunshine days in September:
17.2 days - Average sunshine days in October:
19.8 days - Average sunshine days in November:
20.1 days - Average sunshine days in December:
19.7 days
The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is May (13.1 days).
Average UV index
Oconee, 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
Oconee, IL
The months with the most cloud cover are January and February (Cloud cover 54).
The months with the least cloud cover are June and September (Cloud cover 29).
Average visibility
Oconee, IL
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Oconee, Illinois, USA
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