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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 another subzero cold winter month in Roseville, Illinois, with temperature in the range of an average high of 29.7°F (-1.3°C) and an average low of 17.6°F (-8°C). Temperature readings reach their annual highs in January, averaging 29.7°F (-1.3°C) and a minimum average of 17.6°F (-8°C). Weather in January »
Weather in February
The last month of the winter, February, is an icy month in Roseville, Illinois, with an average temperature ranging between min 21.6°F (-5.8°C) and max 34.9°F (1.6°C). February's advent presents an average high-temperature of a cold 34.9°F (1.6°C), indicating a slight variation from the conditions of the previous month. Weather in February »
Weather in March
March, the first month of the spring in Roseville, is a frosty month, with an average temperature fluctuating between 33.3°F (0.7°C) and 48°F (8.9°C). As Roseville welcomes March, the average high-temperature sees a rise, transitioning from a wintry 34.9°F (1.6°C) in February to a chilly 48°F (8.9°C). Weather in March »
Weather in April
April in Roseville, Illinois, is a moderate spring month, with an average temperature varying between 43.3°F (6.3°C) and 60.4°F (15.8°C). The shift into April is marked by a rise in the average high-temperature, moving from March's frosty 48°F (8.9°C) to a mild 60.4°F (15.8°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Roseville, Illinois, with an average temperature fluctuating between 70.9°F (21.6°C) and 54.1°F (12.3°C). The shift from April to May brings an increase in the average high-temperature, moving from a mild 60.4°F (15.8°C) to an agreeable 70.9°F (21.6°C). Weather in May »
Weather in June
June, the first month of the summer in Roseville, is a warm month, with an average temperature fluctuating between 63.1°F (17.3°C) and 79.5°F (26.4°C). Roseville experiences a minor temperature shift with the start of June, with average high-temperatures moving from an agreeable 70.9°F (21.6°C) in May to a moderately hot 79.5°F (26.4°C). Weather in June »
Weather in July
July, like June, in Roseville, Illinois, is a moderately hot summer month, with an average temperature fluctuating between 82°F (27.8°C) and 64.9°F (18.3°C). In Roseville, temperatures reach their average annual highs in July, measuring 82°F (27.8°C) and a minimum average of 64.9°F (18.3°C). July's average heat index is estimated at a hot 89.6°F (32°C). Weather in July »
Weather in August
August, the last month of the summer in Roseville, is also a moderately hot month, with an average temperature ranging between max 81.1°F (27.3°C) and min 63.3°F (17.4°C). Roseville's transition from July to August introduces an average high-temperature of a still moderately hot 81.1°F (27.3°C), marking an insignificant variation from the 82°F (27.8°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Roseville, Illinois, with an average temperature varying between 75.9°F (24.4°C) and 56.3°F (13.5°C). The start of September sees the average high-temperature at a still moderately hot 75.9°F (24.4°C), showing little difference from August's 81.1°F (27.3°C). Weather in September »
Weather in October
October, like September, in Roseville, Illinois, is another enjoyable autumn month, with an average temperature varying between 45.9°F (7.7°C) and 61.7°F (16.5°C). The onset of October introduces a moderate change in Roseville's weather, with average high-temperatures falling from September's warm 75.9°F (24.4°C) to an enjoyable 61.7°F (16.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Roseville, is also a frosty month, with an average temperature ranging between max 47.5°F (8.6°C) and min 34°F (1.1°C). The shift to November brings a decrease in the average high-temperature, falling from a comfortable 61.7°F (16.5°C) in October to a chilly 47.5°F (8.6°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Roseville, Illinois, with an average temperature varying between 24.6°F (-4.1°C) and 35.6°F (2°C). Arrival of December comes with a reduction in the average high-temperature, falling from a frosty 47.5°F (8.6°C) in November to a wintry 35.6°F (2°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest month in Roseville?
January, characterized by an average high temperature of 29.7°F (-1.3°C) and a low temperature of 17.6°F (-8°C), is generally the coldest month in Roseville.
What is the driest month in Roseville?
January is the month with the least rainfall in Roseville. Rain falls for 5.9 days and accumulates 1.46" (37mm) of precipitation.
How many days does it rain in Roseville?
Throughout the year, there are 149.4 rainfall days, and 30.16" (766mm) of precipitation is accumulated.
When does it snow in Roseville?
January through April, October through December are months with snowfall in Roseville.
When does it snow the most in Roseville?
The month with the most snowfall in Roseville, Illinois, is January, when snow falls for 10.9 days and typically aggregates up to 4.61" (117mm) of snow.
How many days does it snow in Roseville?
Throughout the year, in Roseville, Illinois, there are 36.7 snowfall days, and 15.31" (389mm) of snow is accumulated.
What is the month with the least sunshine in Roseville?
The month with the least sunshine in Roseville, Illinois, is January, with an average of 4.1h of sunshine.
What is the month with the lowest UV index in Roseville?
January is the month with the lowest UV index, with an average maximum UV index of 1.
When is Daylight Saving Time (DST) in Roseville?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Roseville, Illinois, 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 Roseville?
May is the month with the most rainfall. Rain falls for 19 days and accumulates 4.25" (108mm) of precipitation.
When it does not snow in Roseville?
May through September are months without snowfall.
When are the longest days in Roseville?
The month with the longest days in Roseville, Illinois, is June, with an average of 15h and 0min of daylight.
What month has the most sunshine in Roseville?
With an average of 10.1h of sunshine, June has the most sunshine of the year in Roseville.
What is the month with the highest UV index in Roseville?
June and July, with an average maximum UV index of 6, are months with the highest UV index.
What month is the hottest in Roseville?
The highest temperatures in Roseville, Illinois, are recorded in July, with averages reaching a high of 82°F (27.8°C) and a low of 64.9°F (18.3°C).
What is the most humid month in Roseville?
With an average relative humidity of 84%, July is the most humid month in Roseville, Illinois.
What is the least humid month in Roseville?
The least humid month in Roseville is October, with an average relative humidity of 71%.
What is the month with the shortest days in Roseville?
December has the shortest days of the year in Roseville, with an average of 9h and 18min of daylight.
Average temperature
Roseville, IL
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (29.7°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 (17.6°F).
Average pressure
Roseville, IL
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.9"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 (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed
Roseville, IL
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.6mph - Average wind speed in April:
10.7mph - Average wind speed in May:
9mph - Average wind speed in June:
7.9mph
- Average wind speed in July:
6.8mph - Average wind speed in August:
6.8mph - 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:
10mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity
Roseville, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Roseville, IL
- Average rainfall in January:
1.46" - Average rainfall in February:
1.73" - Average rainfall in March:
2.2" - Average rainfall in April:
3.35" - Average rainfall in May:
4.25" - Average rainfall in June:
3.58"
The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is January (1.46").
Average rainfall days
Roseville, IL
- Average rainfall days in January:
5.9 days - Average rainfall days in February:
5.8 days - Average rainfall days in March:
13 days - Average rainfall days in April:
15.5 days - Average rainfall days in May:
19 days - Average rainfall days in June:
18.7 days
- Average rainfall days in July:
17 days - Average rainfall days in August:
14 days - Average rainfall days in September:
11.6 days - Average rainfall days in October:
11.9 days - Average rainfall days in November:
9.5 days - Average rainfall days in December:
7.5 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is February (5.8 days).
Average snowfall
Roseville, IL
The month with the highest snowfall is January (4.61").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Roseville, IL
- Average snowfall days in January:
10.9 days - Average snowfall days in February:
9.4 days - Average snowfall days in March:
4.3 days - Average snowfall days in April:
1 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:
0.4 days - Average snowfall days in November:
2.5 days - Average snowfall days in December:
8.2 days
The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Roseville, 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 0min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 4min - 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 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 1min - Average sunshine in March:
6h and 3min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 0min - 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 3min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
Roseville, IL
- Average sunshine days in January:
15.8 days - Average sunshine days in February:
14.4 days - Average sunshine days in March:
14.5 days - Average sunshine days in April:
12 days - Average sunshine days in May:
9.9 days - Average sunshine days in June:
9.2 days
- Average sunshine days in July:
9.9 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
17.6 days - Average sunshine days in November:
18 days - Average sunshine days in December:
16.6 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (9.2 days).
Average UV index
Roseville, 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
Roseville, IL
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility
Roseville, 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).
Roseville, Illinois, USA
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