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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, like December, is a freezing cold winter month in Osco, Illinois, with an average temperature fluctuating between 28.2°F (-2.1°C) and 16.5°F (-8.6°C). In Osco, January records the lowest average temperatures, peaking at 28.2°F (-2.1°C) and reaching a low of 16.5°F (-8.6°C). Weather in January »
Weather in February
The last month of the winter, February, is a cold month in Osco, Illinois, with an average temperature varying between 33.3°F (0.7°C) and 20.3°F (-6.5°C). Shifting into February, Osco records an average high-temperature of a cold 33.3°F (0.7°C), presenting minor fluctuations compared to the previous month. Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Osco, Illinois, with an average temperature ranging between min 32.4°F (0.2°C) and max 47.1°F (8.4°C). March's onset witnesses a shift in the average high-temperature, moving from a wintry 33.3°F (0.7°C) in February to a frosty 47.1°F (8.4°C). Weather in March »
Weather in April
April in Osco, Illinois, is a mild spring month, with temperature in the range of an average high of 59.2°F (15.1°C) and an average low of 42.4°F (5.8°C). The start of April signals an increase in the average high-temperature, moving from a chilly 47.1°F (8.4°C) in March to a mild 59.2°F (15.1°C). Weather in April »
Weather in May
May, the last month of the spring in Osco, is a pleasant month, with temperature in the range of an average low of 53.4°F (11.9°C) and an average high of 70.7°F (21.5°C). As Osco, Illinois, transitions into May, the average high-temperature shows a change, moving from a mild 59.2°F (15.1°C) in April to an agreeable 70.7°F (21.5°C). Weather in May »
Weather in June
June, the first month of the summer in Osco, is a warm month, with temperature in the range of an average low of 62.2°F (16.8°C) and an average high of 78.8°F (26°C). Osco in June experiences a slight uptick in the average high-temperature, adjusting from May's pleasant 70.7°F (21.5°C) to a moderately hot 78.8°F (26°C). Weather in June »
Weather in July
July, like June, in Osco, Illinois, is a moderately hot summer month, with temperature in the range of an average low of 64.9°F (18.3°C) and an average high of 81.1°F (27.3°C). Temperature records mark July as the warmest month, with highs averaging 81.1°F (27.3°C) and lows at 64.9°F (18.3°C). The heat index value for July is appraised at a tropical 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 Osco, Illinois, with an average temperature varying between 80.2°F (26.8°C) and 63°F (17.2°C). Osco's transition from July to August introduces an average high-temperature of a still moderately hot 80.2°F (26.8°C), marking an insignificant variation from the 81.1°F (27.3°C). Weather in August »
Weather in September
September, the first month of the autumn in Osco, is also a moderately hot month, with an average temperature varying between 56.3°F (13.5°C) and 75.4°F (24.1°C). September's advent denotes a minor fluctuation in the average high-temperature to a still moderately hot 75.4°F (24.1°C) from August's 80.2°F (26.8°C). Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in Osco, Illinois, with an average temperature ranging between max 61.3°F (16.3°C) and min 45.5°F (7.5°C). The arrival of October corresponds with a shift in temperature, down from a warm 75.4°F (24.1°C) in September to a comfortable 61.3°F (16.3°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Osco, Illinois, with an average temperature fluctuating between 46.9°F (8.3°C) and 33.3°F (0.7°C). The onset of November witnesses a clear shift in the average high-temperature, dropping from a comfortable 61.3°F (16.3°C) in October to a chilly 46.9°F (8.3°C). Weather in November »
Weather in December
December, the first month of the winter in Osco, is still a cold month, with an average temperature ranging between min 24.1°F (-4.4°C) and max 34.7°F (1.5°C). With December's arrival, Osco sees a decrease in average high-temperatures, moving from a frosty 46.9°F (8.3°C) in November to a wintry 34.7°F (1.5°C). Weather in December »
Updated: Jul 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
What month is the coldest?
The month of January sees the average lowest temperatures, reaching 28.2°F (-2.1°C) at the peak and 16.5°F (-8.6°C) at the low.
How much does it rain?
Throughout the year, there are 127.7 rainfall days, and 17.8" (452mm) of precipitation is accumulated.
When does it snow?
January through April, October through December are months with snowfall in Osco.
When does it snow the most?
The month with the most snowfall is January, when snow falls for 10.5 days and typically aggregates up to 2.17" (55mm) of snow.
How many days does it snow?
In Osco, during the entire year, snow falls for 35.5 days and aggregates up to 7.95" (202mm) of snow.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 4h of sunshine.
What is the month with the lowest UV index?
The month with the lowest UV index in Osco is January, with an average maximum UV index of 1.
When is Daylight Saving Time (DST)?
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.
What is the wettest month?
The month with the most rainfall in Osco is May, when the rain falls for 16.5 days and typically aggregates up to 2.76" (70mm) of precipitation.
When it does not snow?
In Osco, snow does not fall in May through September.
When are the longest days?
The month with the longest days is June, with an average of 15h and 6min of daylight.
What is the month with the most sunshine?
June and July, with an average of 10.1h of sunshine, are months with the most sunshine.
What is the month with the highest UV index?
The months with the highest UV index in Osco are June and July, with an average maximum UV index of 6.
What is the hottest time of year?
Osco's warmest month, July, generally records average temperatures ranging from a high of 81.1°F (27.3°C) to a low of 64.9°F (18.3°C).
What is the most humid month?
July is the most humid month in Osco, with an average relative humidity of 84%.
What is the least humid month in Osco?
The least humid month is October, with an average relative humidity of 72%.
What is the driest month?
December is the month with the least rainfall in Osco. Rain falls for 6.5 days and accumulates 0.71" (18mm) of precipitation.
What is the month with the shortest days?
With an average of 9h and 12min of daylight, December has the shortest days of the year.
Average temperature
Osco, 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 (28.2°F).
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).
Average pressure
Osco, IL
- Average pressure in January:
30.13"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:
29.95"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Osco, IL
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.6mph - Average wind speed in May:
9.1mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
6.8mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.8mph - Average wind speed in October:
9.5mph - Average wind speed in November:
10.3mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity
Osco, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Osco, IL
- Average rainfall in January:
0.75" - Average rainfall in February:
0.94" - Average rainfall in March:
1.14" - Average rainfall in April:
2.2" - Average rainfall in May:
2.76" - Average rainfall in June:
2.01"
- Average rainfall in July:
1.89" - Average rainfall in August:
1.42" - Average rainfall in September:
1.26" - Average rainfall in October:
1.69" - Average rainfall in November:
1.02" - Average rainfall in December:
0.71"
The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is December (0.71").
Average rainfall days
Osco, IL
- Average rainfall days in January:
4 days - Average rainfall days in February:
4.7 days - Average rainfall days in March:
10.6 days - Average rainfall days in April:
14.1 days - Average rainfall days in May:
16.5 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
14.7 days - Average rainfall days in August:
13.2 days - Average rainfall days in September:
9.9 days - Average rainfall days in October:
11 days - Average rainfall days in November:
7.7 days - Average rainfall days in December:
6.5 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (4 days).
Average snowfall
Osco, IL
The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Osco, IL
- Average snowfall days in January:
10.5 days - Average snowfall days in February:
8.7 days - Average snowfall days in March:
4.4 days - Average snowfall days in April:
1.5 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:
0.6 days - Average snowfall days in November:
2.4 days - Average snowfall days in December:
7.4 days
The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Osco, IL
- Average daylight in January:
9h and 4min - 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 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
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 12min).
- Average sunshine in January:
4h and 0min - Average sunshine in February:
4h and 1min - Average sunshine in March:
6h and 4min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days
Osco, IL
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
15.5 days - Average sunshine days in March:
16 days - Average sunshine days in April:
13.2 days - Average sunshine days in May:
11.6 days - Average sunshine days in June:
11.7 days
- Average sunshine days in July:
11.2 days - Average sunshine days in August:
13.5 days - Average sunshine days in September:
18 days - Average sunshine days in October:
17.6 days - Average sunshine days in November:
19.7 days - Average sunshine days in December:
19.2 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.2 days).
Average UV index
Osco, IL
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Osco, IL
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility
Osco, IL
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Osco, Illinois, USA
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