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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, in Rosiclare, Illinois, is an icy winter month, with temperature in the range of an average low of 27.5°F (-2.5°C) and an average high of 40.5°F (4.7°C). January, on average, is the coldest month, registering a high temperature of 40.5°F (4.7°C) and a low of 27.5°F (-2.5°C). Weather in January »
Weather in February
The last month of the winter, February, is a chilly month in Rosiclare, Illinois, with an average temperature varying between 31.3°F (-0.4°C) and 45.5°F (7.5°C). The transition into February shows a subtle variation to a chilly 45.5°F (7.5°C) from January's 40.5°F (4.7°C) in the average high-temperature. Weather in February »
Weather in March
The first month of the spring, March, is a refreshing month in Rosiclare, Illinois, with an average temperature fluctuating between 40.3°F (4.6°C) and 55.8°F (13.2°C). The start of March brings a rise in the average high-temperature, moving from a frosty 45.5°F (7.5°C) in February to a refreshing 55.8°F (13.2°C). Weather in March »
Weather in April
April in Rosiclare, Illinois, is an enjoyable spring month, with temperature in the range of an average high of 66.7°F (19.3°C) and an average low of 48.9°F (9.4°C). Rosiclare, Illinois, in April sees a temperature change, with average high-temperatures moving from a mild 55.8°F (13.2°C) in March to a comfortable 66.7°F (19.3°C). Weather in April »
Weather in May
May, the last month of the spring in Rosiclare, is a warm month, with temperature in the range of an average high of 75.6°F (24.2°C) and an average low of 58.5°F (14.7°C). Rosiclare's transition into May brings a slight rise in the average high-temperature, moving from a comfortable 66.7°F (19.3°C) in April to a warm 75.6°F (24.2°C). Weather in May »
Weather in June
The first month of the summer, June, is also a moderately hot month in Rosiclare, Illinois, with an average temperature varying between 83.8°F (28.8°C) and 66°F (18.9°C). The commencement of June sees a minor shift in the average high-temperature, moving from a moderately hot 75.6°F (24.2°C) in May to a still warm 83.8°F (28.8°C). Weather in June »
Weather in July
July is a hot summer month in Rosiclare, Illinois, with an average temperature ranging between min 68.5°F (20.3°C) and max 86.5°F (30.3°C). The month of July, characterized by an average high of 86.5°F (30.3°C) and a low of 68.5°F (20.3°C), is recognized as the warmest. Throughout July, the heat index is computed to be a fiery hot 100.4°F (38°C). Weather in July »
Weather in August
August, the last month of the summer in Rosiclare, is also a moderately hot month, with an average temperature varying between 66.7°F (19.3°C) and 85.3°F (29.6°C). The commencement of August records an average high-temperature of a moderately hot 85.3°F (29.6°C), barely varying from July's 86.5°F (30.3°C). Weather in August »
Weather in September
September, the first month of the autumn in Rosiclare, is still a warm month, with an average temperature varying between 61.3°F (16.3°C) and 80.4°F (26.9°C). September's weather displays an average high-temperature of a still moderately hot 80.4°F (26.9°C), slightly varied from August's 85.3°F (29.6°C). Weather in September »
Weather in October
October, like September, is an agreeable autumn month in Rosiclare, Illinois, with an average temperature fluctuating between 50°F (10°C) and 68°F (20°C). Onset of October comes with a temperature decline, the average high falling from a warm 80.4°F (26.9°C) in September to an agreeable 68°F (20°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Rosiclare, Illinois, with an average temperature varying between 54.5°F (12.5°C) and 39.7°F (4.3°C). In November, the average high-temperature goes from an agreeable 68°F (20°C) in October to a cool 54.5°F (12.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Rosiclare, Illinois, with temperature in the range of an average low of 33.4°F (0.8°C) and an average high of 45.5°F (7.5°C). December comes with a decrease in the average high-temperature, falling from a cool 54.5°F (12.5°C) in November to a frosty 45.5°F (7.5°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
What time of the year is the coldest in Rosiclare?
Rosiclare experiences its lowest temperatures in January, with an average peak of 40.5°F (4.7°C) and a low of 27.5°F (-2.5°C).
How many days does it rain in Rosiclare?
Throughout the year, in Rosiclare, Illinois, there are 148.8 rainfall days, and 27.05" (687mm) of precipitation is accumulated.
When does it snow in Rosiclare?
Months with snowfall are January through April, November and December.
How much does it snow in Rosiclare?
Throughout the year, in Rosiclare, there are 15 snowfall days, and 4.8" (122mm) of snow is accumulated.
What is the month with the least sunshine in Rosiclare?
January and February, with an average of 4.6h of sunshine, are months with the least sunshine.
When is the lowest UV index in Rosiclare?
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the wettest month in Rosiclare?
The month with the most rainfall is February, when the rain falls for 9.9 days and typically aggregates up to 3.03" (77mm) of precipitation.
When does it snow the most in Rosiclare?
February is the month with the most snowfall. Snow falls for 4.1 days and accumulates 1.57" (40mm) of snow.
When is Daylight Saving Time (DST) in Rosiclare?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Rosiclare, 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 most humid month in Rosiclare?
The most humid month is May, with an average relative humidity of 80%.
When it does not snow in Rosiclare?
In Rosiclare, Illinois, snow does not fall in May through October.
What are the months with the highest UV index in Rosiclare?
The months with the highest UV index are May through August, with an average maximum UV index of 6.
When are the longest days in Rosiclare?
June has the longest days of the year in Rosiclare, with an average of 14h and 42min of daylight.
What are the months with the most sunshine in Rosiclare?
June and July, with an average of 10.5h of sunshine, are months with the most sunshine in Rosiclare, Illinois.
What is the hottest time of year in Rosiclare?
July is the warmest month, with the temperature often reaching an average high of 86.5°F (30.3°C) and an average low of 68.5°F (20.3°C).
What is the driest month in Rosiclare?
The month with the least rainfall in Rosiclare is September, when the rain falls for 11.7 days and typically collects 1.3" (33mm) of precipitation.
What is the least humid month in Rosiclare?
The least humid month is October, with an average relative humidity of 71%.
What is the month with the shortest days in Rosiclare?
The month with the shortest days in Rosiclare, Illinois, is December, with an average of 9h and 36min of daylight.
Average temperature
Rosiclare, 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 (40.5°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 (27.5°F).
Average pressure
Rosiclare, IL
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.15"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
Rosiclare, IL
- Average wind speed in January:
9.4mph - Average wind speed in February:
9.5mph - Average wind speed in March:
9.4mph - Average wind speed in April:
9.4mph - Average wind speed in May:
7.7mph - Average wind speed in June:
6.5mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.7mph - Average wind speed in September:
6.4mph - Average wind speed in October:
8mph - Average wind speed in November:
8.6mph - Average wind speed in December:
8.8mph
The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity
Rosiclare, IL
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Rosiclare, IL
- Average rainfall in January:
1.57" - Average rainfall in February:
3.03" - Average rainfall in March:
2.6" - Average rainfall in April:
2.91" - Average rainfall in May:
2.56" - Average rainfall in June:
2.52"
- Average rainfall in July:
2.32" - Average rainfall in August:
2.24" - Average rainfall in September:
1.3" - Average rainfall in October:
1.81" - Average rainfall in November:
2.13" - Average rainfall in December:
2.05"
The wettest month (with the highest rainfall) is February (3.03").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days
Rosiclare, IL
- Average rainfall days in January:
9.1 days - Average rainfall days in February:
9.9 days - Average rainfall days in March:
14.4 days - Average rainfall days in April:
13.6 days - Average rainfall days in May:
16.3 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
14.2 days - Average rainfall days in September:
11.7 days - Average rainfall days in October:
8.9 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
10.8 days
The months with the highest number of rainy days are May and July (16.3 days).
The month with the least rainy days is November (8.8 days).
Average snowfall
Rosiclare, IL
The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Rosiclare, IL
- Average snowfall days in January:
4.5 days - Average snowfall days in February:
4.1 days - Average snowfall days in March:
1.7 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:
1.1 days - Average snowfall days in December:
3.2 days
The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Rosiclare, IL
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 2min - 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 1min - Average daylight in December:
9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
4h and 4min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 4min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 1min - Average sunshine in October:
6h and 5min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days
Rosiclare, IL
- Average sunshine days in January:
17.7 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
15 days - Average sunshine days in May:
12.8 days - Average sunshine days in June:
12.9 days
- Average sunshine days in July:
12.1 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
17.2 days - Average sunshine days in October:
20.3 days - Average sunshine days in November:
19.4 days - Average sunshine days in December:
18.2 days
The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is July (12.1 days).
Average UV index
Rosiclare, IL
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover
Rosiclare, IL
The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June, August and September (Cloud cover 28).
Average visibility
Rosiclare, 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).
Rosiclare, Illinois, USA
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