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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, in Geneseo, Illinois, is a freezing cold winter month, with an average temperature varying between 28°F (-2.2°C) and 16°F (-8.9°C). January, having an average high-temperature of 28°F (-2.2°C) and an average low-temperature of 16°F (-8.9°C), is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Geneseo, is a cold month, with temperature in the range of an average low of 19.8°F (-6.8°C) and an average high of 32.9°F (0.5°C). The commencement of February records an average high-temperature of a wintry 32.9°F (0.5°C), barely varying from January's 28°F (-2.2°C). Weather in February »
Weather in March
March, the first month of the spring in Geneseo, is a frosty month, with an average temperature fluctuating between 46.9°F (8.3°C) and 32.4°F (0.2°C). Geneseo's weather shows a temperature rise with the arrival of March, moving from a cold 32.9°F (0.5°C) in February to a chilly 46.9°F (8.3°C). Weather in March »
Weather in April
April in Geneseo, Illinois, is a moderate 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). April's onset brings a temperature rise, moving from a chilly 46.9°F (8.3°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 Geneseo, is an agreeable 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). Geneseo experiences a temperature shift with the start of May, with average high-temperatures 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 Geneseo, is a moderately hot month, with an average temperature varying between 78.8°F (26°C) and 61.9°F (16.6°C). June's arrival coincides with a marginal rise in the average high-temperature, moving from May's agreeable 70.7°F (21.5°C) to a warm 78.8°F (26°C). Weather in June »
Weather in July
July, like June, in Geneseo, Illinois, is another warm summer month, with an average temperature ranging between max 81.1°F (27.3°C) and min 64.9°F (18.3°C). In Geneseo, the month of July registers the highest temperatures, averaging 81.1°F (27.3°C) at the peak and 64.9°F (18.3°C) at the lowest. In July, the average heat index is evaluated at a hot 87.8°F (31°C). Weather in July »
Weather in August
August, the last month of the summer in Geneseo, is another warm month, with an average temperature varying between 80.2°F (26.8°C) and 62.6°F (17°C). Geneseo observes a minor difference in average high-temperatures between July's 81.1°F (27.3°C) and August's 80.2°F (26.8°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Geneseo, Illinois, with an average temperature ranging between min 56.3°F (13.5°C) and max 75.4°F (24.1°C). The ushering in of September brings an average high-temperature of a still moderately hot 75.4°F (24.1°C), closely mirroring the 80.2°F (26.8°C) of August. Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in Geneseo, Illinois, with an average temperature fluctuating between 45.5°F (7.5°C) and 61.3°F (16.3°C). The arrival of October corresponds with a reduction in the average high-temperature, down from September's moderately hot 75.4°F (24.1°C) to a comfortable 61.3°F (16.3°C). Weather in October »
Weather in November
November, the last month of the autumn in Geneseo, is also a frosty month, with an average temperature fluctuating between 46.9°F (8.3°C) and 33.1°F (0.6°C). With the onset of November, Geneseo experiences a noticeable temperature shift, with the average high-temperature receding from a refreshing 61.3°F (16.3°C) in October to a frosty 46.9°F (8.3°C). Weather in November »
Weather in December
December, the first month of the winter in Geneseo, is still a cold month, with an average temperature varying between 24.1°F (-4.4°C) and 34.5°F (1.4°C). December is characterized by a reduction in the average high-temperature, from a chilly 46.9°F (8.3°C) in November to a wintry 34.5°F (1.4°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest month in Geneseo?
January, with average temperatures reaching a high of 28°F (-2.2°C) and a low of 16°F (-8.9°C), is the coldest month in Geneseo.
What are the most humid months in Geneseo?
The months with the highest humidity in Geneseo are January and July, with an average relative humidity of 84%.
What is the driest month in Geneseo?
The months with the least rainfall in Geneseo are January and December Rain falls for 4.1 days and accumulates 0.63" (16mm) of rain.
How many days does it rain in Geneseo?
Throughout the year, in Geneseo, Illinois, there are 118.8 rainfall days, and 15.04" (382mm) of precipitation is accumulated.
When does it snow in Geneseo?
January through April, October through December are months with snowfall in Geneseo, Illinois.
When does it snow the most in Geneseo?
The month with the most snowfall in Geneseo, Illinois, is January, when snow falls for 9 days and typically aggregates up to 2.13" (54mm) of snow.
How much does it snow in Geneseo?
Throughout the year, in Geneseo, there are 29.3 snowfall days, and 6.54" (166mm) of snow is accumulated.
What is the month with the least sunshine in Geneseo?
January has the least sunshine of the year, with an average of 4h of sunshine.
When is the lowest UV index in Geneseo?
The months with the lowest UV index in Geneseo, Illinois, are January and December, with an average maximum UV index of 1.
When is Daylight Saving Time (DST) in Geneseo?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Geneseo, 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 rainiest month in Geneseo?
May is the month with the most rainfall in Geneseo. Rain falls for 16.5 days and accumulates 2.48" (63mm) of precipitation.
When it does not snow in Geneseo?
In Geneseo, snow does not fall in May through September.
When are the longest days in Geneseo?
With an average of 15h and 6min of daylight, June has the longest days of the year.
What time of the year is the hottest in Geneseo?
Geneseo's warmest weather arrives in July, when temperatures average a high of 81.1°F (27.3°C) and a low of 64.9°F (18.3°C).
What month has the most sunshine in Geneseo?
July has the most sunshine of the year in Geneseo, Illinois, with an average of 10h of sunshine.
What is the month with the highest UV index in Geneseo?
July is the month with the highest UV index, with an average maximum UV index of 6.
What is the least humid month in Geneseo?
October is the least humid month, with an average relative humidity of 72%.
What is the month with the shortest days in Geneseo?
December has the shortest days of the year, with an average of 9h and 12min of daylight.
Average temperature
Geneseo, 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°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°F).
Average pressure
Geneseo, IL
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.11"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:
30.03"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
Geneseo, IL
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.6mph - Average wind speed in May:
9mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.8mph - Average wind speed in October:
9.4mph - Average wind speed in November:
10.2mph - Average wind speed in December:
9.8mph
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
Geneseo, IL
The months with the highest relative humidity are January and July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Geneseo, IL
- Average rainfall in January:
0.63" - Average rainfall in February:
0.67" - Average rainfall in March:
1.02" - Average rainfall in April:
1.61" - Average rainfall in May:
2.48" - Average rainfall in June:
1.89"
The wettest month (with the highest rainfall) is May (2.48").
The driest months (with the least rainfall) are January and December (0.63").
Average rainfall days
Geneseo, IL
- Average rainfall days in January:
4.1 days - Average rainfall days in February:
3.9 days - Average rainfall days in March:
9.8 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
16.5 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
13 days - Average rainfall days in August:
11.1 days - Average rainfall days in September:
9.7 days - Average rainfall days in October:
10.1 days - Average rainfall days in November:
6.5 days - Average rainfall days in December:
5.5 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is February (3.9 days).
Average snowfall
Geneseo, IL
The month with the highest snowfall is January (2.13").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Geneseo, IL
- Average snowfall days in January:
9 days - Average snowfall days in February:
7.9 days - Average snowfall days in March:
3.8 days - Average snowfall days in April:
0.7 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:
0.5 days - Average snowfall days in November:
1.7 days - Average snowfall days in December:
5.7 days
The month with the highest number of snowfall days is January (9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Geneseo, 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 - 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:
9h and 5min
- Average sunshine in July:
10h - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 2min
The month with the most sunshine is July (Average sunshine: 10h).
The month with the least sunshine is January (Average sunshine: 4h).
Average sunshine days
Geneseo, IL
- Average sunshine days in January:
19.6 days - Average sunshine days in February:
17.7 days - Average sunshine days in March:
18.3 days - Average sunshine days in April:
14.7 days - Average sunshine days in May:
12.8 days - Average sunshine days in June:
12 days
- Average sunshine days in July:
15.5 days - Average sunshine days in August:
17.9 days - Average sunshine days in September:
19 days - Average sunshine days in October:
20 days - Average sunshine days in November:
20.7 days - Average sunshine days in December:
20.9 days
The month with the most sunshine days is December (20.9 days).
The month with the least sunshine days is June (12 days).
Average UV index
Geneseo, IL
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Geneseo, IL
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility
Geneseo, IL
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Geneseo, Illinois, USA
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