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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, is an icy winter month in Keyesport, Illinois, with an average temperature varying between 37°F (2.8°C) and 24.4°F (-4.2°C). Keyesport's coldest month, January, registers temperatures that range from a high of 37°F (2.8°C) to a low of 24.4°F (-4.2°C). Weather in January »
Weather in February
February, the last month of the winter in Keyesport, is also an icy month, with an average temperature fluctuating between 41.9°F (5.5°C) and 27.9°F (-2.3°C). Keyesport's average high-temperature in February is a still icy 41.9°F (5.5°C), indicating a subtle variation from January. Weather in February »
Weather in March
March, the first month of the spring in Keyesport, is a cool month, with an average temperature fluctuating between 53.8°F (12.1°C) and 37.8°F (3.2°C). The shift into March is characterized by a rise in the average high-temperature, transitioning from February's icy 41.9°F (5.5°C) to a cool 53.8°F (12.1°C). Weather in March »
Weather in April
April is a comfortable spring month in Keyesport, Illinois, with an average temperature varying between 64.6°F (18.1°C) and 47.5°F (8.6°C). The average high-temperature increases in April, moving from a cool 53.8°F (12.1°C) in March to an enjoyable 64.6°F (18.1°C). Weather in April »
Weather in May
The last month of the spring, May, is a moderately hot month in Keyesport, Illinois, with temperature in the range of an average low of 57.7°F (14.3°C) and an average high of 74.5°F (23.6°C). May shows a rise in the average high-temperature, moving from April's enjoyable 64.6°F (18.1°C) to a moderately hot 74.5°F (23.6°C). Weather in May »
Weather in June
June, the first month of the summer in Keyesport, is still a warm month, with temperature in the range of an average low of 66.4°F (19.1°C) and an average high of 83.3°F (28.5°C). Keyesport's weather shows a minor temperature rise with the arrival of June, moving from a warm 74.5°F (23.6°C) in May to a still moderately hot 83.3°F (28.5°C). Weather in June »
Weather in July
July, like June, in Keyesport, Illinois, is a moderately hot summer month, with an average temperature varying between 67.6°F (19.8°C) and 84.9°F (29.4°C). In Keyesport, the average temperatures in July are the highest, with a peak at 84.9°F (29.4°C) and a low of 67.6°F (19.8°C). July's heat index is appraised at a torrid 96.8°F (36°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Keyesport, Illinois, with temperature in the range of an average high of 83.8°F (28.8°C) and an average low of 65.8°F (18.8°C). The start of August marks an average high-temperature of a still warm 83.8°F (28.8°C), hardly distinguishable from the conditions in July. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Keyesport, Illinois, with an average temperature varying between 78.1°F (25.6°C) and 59.9°F (15.5°C). With the onset of September, Keyesport's climate undergoes a slight change as the average high-temperature moves from a moderately hot 83.8°F (28.8°C) in August to a still warm 78.1°F (25.6°C). Weather in September »
Weather in October
October, like September, in Keyesport, Illinois, is another refreshing autumn month, with an average temperature varying between 49.1°F (9.5°C) and 66°F (18.9°C). October comes with a decrease in the average high-temperature, falling from a moderately hot 78.1°F (25.6°C) in September to an enjoyable 66°F (18.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Keyesport, is also a fresh month, with an average temperature fluctuating between 52.5°F (11.4°C) and 37.8°F (3.2°C). With the beginning of November, the average high-temperature shows a decrease, transitioning from a refreshing 66°F (18.9°C) in October to a cool 52.5°F (11.4°C). Weather in November »
Weather in December
December, the first month of the winter in Keyesport, is still a cold month, with an average temperature fluctuating between 30.4°F (-0.9°C) and 41.9°F (5.5°C). Keyesport in December experiences a subtle temperature decline, with average high-temperatures reducing from a fresh 52.5°F (11.4°C) in November to a wintry 41.9°F (5.5°C). Weather in December »
Updated: Aug 14, 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 is the coldest month?
Keyesport notes the coldest temperatures in January, with a average high of 37°F (2.8°C) and a low of 24.4°F (-4.2°C).
How many days does it rain in Keyesport?
In Keyesport, Illinois, during the entire year, the rain falls for 120.1 days and collects up to 15.55" (395mm) of precipitation.
When does it snow?
Months with snowfall are January through March, November and December.
How much does it snow?
In Keyesport, during the entire year, snow falls for 16.4 days and aggregates up to 2.24" (57mm) of snow.
What is the month with the least sunshine in Keyesport?
With an average of 4.5h of sunshine, January has the least sunshine of the year.
When is the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
What is the driest month?
The month with the least rainfall is February, when the rain falls for 6.2 days and typically collects 0.71" (18mm) of precipitation.
When does it snow the most?
February is the month with the most snowfall. Snow falls for 4.9 days and accumulates 0.71" (18mm) of snow.
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.
When it does not snow?
In Keyesport, snow does not fall in April through October.
What is the most humid month?
The months with the highest humidity are May, July and August, with an average relative humidity of 80%.
What is the month with the highest UV index?
The months with the highest UV index are May through August, with an average maximum UV index of 6.
What is the wettest month?
The month with the most rainfall is June, when the rain falls for 13.3 days and typically aggregates up to 2.01" (51mm) of precipitation.
When are the longest days?
The month with the longest days is June, with an average of 14h and 48min of daylight.
What month has the most sunshine?
With an average of 10.5h of sunshine, June has the most sunshine of the year.
What is the hottest time of year?
The month of July, characterized by an average high of 84.9°F (29.4°C) and a low of 67.6°F (19.8°C), is recognized as the warmest.
What is the least humid month?
The least humid month is October, with an average relative humidity of 71%.
What is the month with the shortest days?
With an average of 9h and 30min of daylight, December has the shortest days of the year.
Average temperature
Keyesport, IL
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37°F).
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure
Keyesport, IL
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Keyesport, IL
- Average wind speed in January:
9.8mph - Average wind speed in February:
9.8mph - Average wind speed in March:
9.6mph - Average wind speed in April:
9.4mph - Average wind speed in May:
7.8mph - Average wind speed in June:
6.8mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.8mph - Average wind speed in September:
6.3mph - Average wind speed in October:
8.3mph - Average wind speed in November:
8.9mph - Average wind speed in December:
9mph
The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).
Average humidity
Keyesport, IL
The months with the highest relative humidity are May, July and August (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Keyesport, IL
- Average rainfall in January:
0.94" - Average rainfall in February:
0.71" - Average rainfall in March:
1.06" - Average rainfall in April:
1.65" - Average rainfall in May:
1.85" - Average rainfall in June:
2.01"
- Average rainfall in July:
1.81" - Average rainfall in August:
1.69" - Average rainfall in September:
0.79" - Average rainfall in October:
1.26" - Average rainfall in November:
0.83" - Average rainfall in December:
0.94"
The wettest month (with the highest rainfall) is June (2.01").
The driest month (with the least rainfall) is February (0.71").
Average rainfall days
Keyesport, IL
- Average rainfall days in January:
5.8 days - Average rainfall days in February:
6.2 days - Average rainfall days in March:
10.8 days - Average rainfall days in April:
11.4 days - Average rainfall days in May:
14.5 days - Average rainfall days in June:
13.3 days
- Average rainfall days in July:
13.7 days - Average rainfall days in August:
11.3 days - Average rainfall days in September:
9.8 days - Average rainfall days in October:
9.1 days - Average rainfall days in November:
8.1 days - Average rainfall days in December:
6.1 days
The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is January (5.8 days).
Average snowfall
Keyesport, IL
The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Keyesport, IL
- Average snowfall days in January:
5.3 days - Average snowfall days in February:
4.9 days - Average snowfall days in March:
1.8 days - Average snowfall days in April:
0.2 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 days - Average snowfall days in November:
0.8 days - Average snowfall days in December:
3.4 days
The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Keyesport, 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 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - 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 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
4h and 3min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 2min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 1min - Average sunshine in September:
9h and 2min - Average sunshine in October:
6h and 2min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days
Keyesport, IL
- Average sunshine days in January:
21.3 days - Average sunshine days in February:
17.8 days - Average sunshine days in March:
17.8 days - Average sunshine days in April:
16.6 days - Average sunshine days in May:
14.1 days - Average sunshine days in June:
13.8 days
- Average sunshine days in July:
14.3 days - Average sunshine days in August:
16.5 days - Average sunshine days in September:
17.5 days - Average sunshine days in October:
20.7 days - Average sunshine days in November:
20.5 days - Average sunshine days in December:
22.5 days
The month with the most sunshine days is December (22.5 days).
The month with the least sunshine days is June (13.8 days).
Average UV index
Keyesport, 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, November and December (UV index 2).
Average cloud cover
Keyesport, IL
The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are June, July and August (Cloud cover 28).
Average visibility
Keyesport, 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).
Keyesport, Illinois, USA
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