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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 Raleigh, Illinois, is another cold winter month, with temperature in the range of an average high of 39.7°F (4.3°C) and an average low of 26.8°F (-2.9°C). January is the coldest month of the year, registering average temperatures as high as 39.7°F (4.3°C) and as low as 26.8°F (-2.9°C). Weather in January »
Weather in February
The last month of the winter, February, is a frosty month in Raleigh, Illinois, with temperature in the range of an average low of 30.6°F (-0.8°C) and an average high of 44.6°F (7°C). Upon the beginning of February, Raleigh's high-temperatures register at a frosty 44.6°F (7°C), closely mirroring the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Raleigh, is a refreshing month, with temperature in the range of an average low of 39.6°F (4.2°C) and an average high of 55.4°F (13°C). The arrival of March signals an increase in the average high-temperature, moving from a chilly 44.6°F (7°C) in February to a refreshing 55.4°F (13°C). Weather in March »
Weather in April
April in Raleigh, Illinois, is a refreshing spring month, with an average temperature ranging between min 48.9°F (9.4°C) and max 66.4°F (19.1°C). Noticing a change, the average high-temperature during April moves from March's moderate 55.4°F (13°C) to a comfortable 66.4°F (19.1°C). Weather in April »
Weather in May
May, the last month of the spring in Raleigh, is a moderately hot month, with an average temperature fluctuating between 75.6°F (24.2°C) and 58.3°F (14.6°C). May's arrival coincides with a temperature rise, moving from April's refreshing 66.4°F (19.1°C) 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 Raleigh, Illinois, with an average temperature varying between 84°F (28.9°C) and 66.4°F (19.1°C). As May transitions into June, Raleigh notices a gentle rise in the average high-temperature, transitioning from 75.6°F (24.2°C) to a still warm 84°F (28.9°C). Weather in June »
Weather in July
July is a tropical summer month in Raleigh, Illinois, with an average temperature fluctuating between 86.2°F (30.1°C) and 68.4°F (20.2°C). July, with its average high-temperature of 86.2°F (30.1°C) and an average low-temperature of 68.4°F (20.2°C), holds the record as the warmest month. For July, the heat index is computed to be a very hot 98.6°F (37°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Raleigh, Illinois, with an average temperature ranging between max 84.9°F (29.4°C) and min 66.2°F (19°C). At the start of August, Raleigh's average high-temperature reaches a warm 84.9°F (29.4°C), subtly different from the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Raleigh, is still a warm month, with temperature in the range of an average high of 79.9°F (26.6°C) and an average low of 60.8°F (16°C). The transition into September notes an average high-temperature of a still moderately hot 79.9°F (26.6°C), revealing a mild distinction from the 84.9°F (29.4°C) in August. Weather in September »
Weather in October
October, like September, in Raleigh, Illinois, is another comfortable autumn month, with an average temperature ranging between max 67.8°F (19.9°C) and min 49.6°F (9.8°C). The onset of October entails a temperature shift, as the average high-temperature decreases from a warm 79.9°F (26.6°C) in September to a comfortable 67.8°F (19.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Raleigh, is also a fresh month, with an average temperature ranging between min 38.8°F (3.8°C) and max 54.1°F (12.3°C). With November's onset, the weather shows a temperature decrease, transitioning from a comfortable 67.8°F (19.9°C) in October to a fresh 54.1°F (12.3°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Raleigh, Illinois, with an average temperature fluctuating between 32.9°F (0.5°C) and 44.6°F (7°C). Raleigh's weather in December involves a decrease in the average high-temperature, moving down from November's cool 54.1°F (12.3°C) to a chilly 44.6°F (7°C). Weather in December »
[Resources]Frequently asked questions
What time of the year is the coldest in Raleigh?
Raleigh's coldest weather arrives in January, when temperatures average a high of 39.7°F (4.3°C) and a low of 26.8°F (-2.9°C).
How many days does it rain in Raleigh?
Throughout the year, in Raleigh, there are 146.3 rainfall days, and 24.96" (634mm) of precipitation is accumulated.
When does it snow in Raleigh?
January through April, November and December are months with snowfall in Raleigh.
How much does it snow in Raleigh?
Throughout the year, in Raleigh, Illinois, there are 15.9 snowfall days, and 3.58" (91mm) of snow is accumulated.
What is the month with the least sunshine in Raleigh?
January has the least sunshine of the year in Raleigh, Illinois, with an average of 4.5h of sunshine.
When is the lowest UV index in Raleigh?
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the snowiest month in Raleigh?
The month with the most snowfall is February, when snow falls for 4.3 days and typically aggregates up to 0.87" (22mm) of snow.
When is Daylight Saving Time (DST) in Raleigh?
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 in Raleigh?
April is the month with the most rainfall in Raleigh, Illinois. Rain falls for 14.7 days and accumulates 3.27" (83mm) of precipitation.
What is the most humid month in Raleigh?
With an average relative humidity of 80%, May is the most humid month.
When it does not snow in Raleigh?
May through October are months without snowfall.
When is the highest UV index in Raleigh?
The months with the highest UV index in Raleigh, Illinois, are May through August, with an average maximum UV index of 6.
When are the longest days in Raleigh?
With an average of 14h and 42min of daylight, June has the longest days of the year in Raleigh, Illinois.
What month is the hottest in Raleigh?
The month of July, characterized by an average high of 86.2°F (30.1°C) and a low of 68.4°F (20.2°C), is recognized as the warmest.
What month has the most sunshine in Raleigh?
With an average of 10.6h of sunshine, July has the most sunshine of the year in Raleigh.
What is the driest month in Raleigh?
September is the month with the least rainfall. Rain falls for 10.8 days and accumulates 1.14" (29mm) of precipitation.
What is the least humid month in Raleigh?
With an average relative humidity of 70%, October is the least humid month in Raleigh, Illinois.
What is the month with the shortest days in Raleigh?
The month with the shortest days is December, with an average of 9h and 36min of daylight.
Average temperature
Raleigh, IL
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (39.7°F).
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure
Raleigh, 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:
29.96"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:
30.14"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
Raleigh, IL
- Average wind speed in January:
9.7mph - Average wind speed in February:
9.8mph - Average wind speed in March:
9.6mph - Average wind speed in April:
9.6mph - Average wind speed in May:
8mph - Average wind speed in June:
6.7mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.8mph - Average wind speed in September:
6.5mph - Average wind speed in October:
8.2mph - Average wind speed in November:
8.8mph - Average wind speed in December:
9.1mph
The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity
Raleigh, IL
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Raleigh, IL
- Average rainfall in January:
1.97" - Average rainfall in February:
2.17" - Average rainfall in March:
2.28" - Average rainfall in April:
3.27" - Average rainfall in May:
2.4" - Average rainfall in June:
2.24"
- Average rainfall in July:
2.05" - Average rainfall in August:
1.77" - Average rainfall in September:
1.14" - Average rainfall in October:
1.77" - Average rainfall in November:
1.85" - Average rainfall in December:
2.05"
The wettest month (with the highest rainfall) is April (3.27").
The driest month (with the least rainfall) is September (1.14").
Average rainfall days
Raleigh, IL
- Average rainfall days in January:
9.3 days - Average rainfall days in February:
9.8 days - Average rainfall days in March:
13.5 days - Average rainfall days in April:
14.7 days - Average rainfall days in May:
16.7 days - Average rainfall days in June:
14.3 days
- Average rainfall days in July:
15 days - Average rainfall days in August:
13.3 days - Average rainfall days in September:
10.8 days - Average rainfall days in October:
9.5 days - Average rainfall days in November:
9 days - Average rainfall days in December:
10.4 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is November (9 days).
Average snowfall
Raleigh, IL
The month with the highest snowfall is February (0.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Raleigh, IL
- Average snowfall days in January:
4.8 days - Average snowfall days in February:
4.3 days - Average snowfall days in March:
1.8 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:
0.1 days - Average snowfall days in November:
1.1 days - Average snowfall days in December:
3.5 days
The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Raleigh, 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 3min - 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 3min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 5min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
10h and 4min - 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days
Raleigh, IL
- Average sunshine days in January:
17 days - Average sunshine days in February:
14.6 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
11.2 days - Average sunshine days in June:
12.1 days
- Average sunshine days in July:
12.3 days - Average sunshine days in August:
15.3 days - Average sunshine days in September:
17 days - Average sunshine days in October:
20.5 days - Average sunshine days in November:
19.3 days - Average sunshine days in December:
17.2 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is May (11.2 days).
Average UV index
Raleigh, 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
Raleigh, IL
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility
Raleigh, 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).
Raleigh, Illinois, USA
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