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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
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Georgetown, Illinois, with an average temperature varying between 20.5°F (-6.4°C) and 31.6°F (-0.2°C). Georgetown notes the coldest temperatures in January, with a high average of 31.6°F (-0.2°C) and a low of 20.5°F (-6.4°C). Weather in January »
Weather in February
February, the last month of the winter in Georgetown, is an icy month, with an average temperature varying between 37°F (2.8°C) and 23.9°F (-4.5°C). The shift into February brings a slight increase in the average high-temperature, moving from a freezing cold 31.6°F (-0.2°C) in January to a wintry 37°F (2.8°C). Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Georgetown, Illinois, with an average temperature fluctuating between 49.1°F (9.5°C) and 34.9°F (1.6°C). March comes with an increase, with the average high-temperature moving from an icy 37°F (2.8°C) in February to a frosty 49.1°F (9.5°C). Weather in March »
Weather in April
April in Georgetown, Illinois, is a comfortable spring month, with temperature in the range of an average low of 45°F (7.2°C) and an average high of 61.2°F (16.2°C). April sees a rise in the average high-temperature, climbing from a frosty 49.1°F (9.5°C) in March to a refreshing 61.2°F (16.2°C). Weather in April »
Weather in May
May, the last month of the spring in Georgetown, is an agreeable month, with temperature in the range of an average low of 55°F (12.8°C) and an average high of 71.8°F (22.1°C). With the onset of May, Georgetown sees a temperature rise, with the average high-temperature moving from April's refreshing 61.2°F (16.2°C) to an agreeable 71.8°F (22.1°C). Weather in May »
Weather in June
June, the first month of the summer in Georgetown, is a warm month, with an average temperature varying between 79.9°F (26.6°C) and 63.3°F (17.4°C). The start of June is characterized by a subtle increase in the average high-temperature, transitioning from an agreeable 71.8°F (22.1°C) in May to a moderately hot 79.9°F (26.6°C). Weather in June »
Weather in July
July, like June, in Georgetown, Illinois, is a moderately hot summer month, with an average temperature varying between 81.3°F (27.4°C) and 64.9°F (18.3°C). July is the warmest month, with the temperature often reaching an average high of 81.3°F (27.4°C) and an average low of 64.9°F (18.3°C). The heat index in July is evaluated at a hot 87.8°F (31°C). Weather in July »
Weather in August
August, the last month of the summer in Georgetown, is also a moderately hot month, with temperature in the range of an average high of 80.6°F (27°C) and an average low of 63.3°F (17.4°C). The average high-temperature during August registers at a still warm 80.6°F (27°C), closely corresponding to the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Georgetown, is also a moderately hot month, with an average temperature fluctuating between 57.7°F (14.3°C) and 76.1°F (24.5°C). September begins with an average high-temperature of a still moderately hot 76.1°F (24.5°C), reflecting close similarity to the preceding month. Weather in September »
Weather in October
October, like September, in Georgetown, Illinois, is another comfortable autumn month, with an average temperature fluctuating between 63.1°F (17.3°C) and 47.1°F (8.4°C). October's arrival coincides with a drop in the average high-temperature, decreasing from September's warm 76.1°F (24.5°C) to an enjoyable 63.1°F (17.3°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Georgetown, Illinois, with an average temperature fluctuating between 35.6°F (2°C) and 48.9°F (9.4°C). A change in temperatures is noted as October gives way to November, with average highs reducing from an enjoyable 63.1°F (17.3°C) to a chilly 48.9°F (9.4°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Georgetown, Illinois, with an average temperature ranging between max 37.6°F (3.1°C) and min 27.5°F (-2.5°C). December's arrival correlates with a reduction in the average high-temperature, down from a frosty 48.9°F (9.4°C) in November to an icy 37.6°F (3.1°C). Weather in December »
Updated: Jul 30, 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 part of the year is the coldest?
In Georgetown, January is the month with the lowest recorded average temperatures, measuring a high of 31.6°F (-0.2°C) and a low of 20.5°F (-6.4°C).
How many days does it rain?
In Georgetown, during the entire year, the rain falls for 151.8 days and collects up to 25.63" (651mm) of precipitation.
When does it snow?
Months with snowfall are January through April, November and December.
How many days does it snow?
Throughout the year, there are 35.2 snowfall days, and 8.82" (224mm) of snow is accumulated.
What is the month with the least sunshine?
With an average of 4h of sunshine, January has the least sunshine of the year.
What is the month with the lowest UV index?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the driest month?
The months with the least rainfall are February and September Rain falls for 6.6 days and accumulates 1.38" (35mm) of rain.
What is the snowiest month?
The month with the most snowfall in Georgetown is February, when snow falls for 8.9 days and typically aggregates up to 2.64" (67mm) 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.
What is the rainiest month?
April is the month with the most rainfall. Rain falls for 15.3 days and accumulates 3.23" (82mm) of precipitation.
When it does not snow in Georgetown?
In Georgetown, snow does not fall in May through October.
When are the longest days?
The month with the longest days in Georgetown, Illinois, is June, with an average of 15h and 0min of daylight.
What month has the most sunshine?
June has the most sunshine of the year, with an average of 10.1h of sunshine.
When is the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What is the hottest time of year?
July, characterized by an average high temperature of 81.3°F (27.4°C) and a low temperature of 64.9°F (18.3°C), is generally the warmest month.
What is the most humid month in Georgetown?
With an average relative humidity of 84%, July is the most humid month.
What is the least humid month?
The least humid month in Georgetown is October, with an average relative humidity of 72%.
What is the month with the shortest days?
With an average of 9h and 24min of daylight, December has the shortest days of the year in Georgetown.
Average temperature
Georgetown, IL
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.6°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 (20.5°F).
Average pressure
Georgetown, IL
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.11"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:
29.98"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Georgetown, IL
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.3mph - Average wind speed in March:
9.9mph - Average wind speed in April:
10.2mph - Average wind speed in May:
8.6mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7.1mph - Average wind speed in October:
9.1mph - Average wind speed in November:
9.8mph - Average wind speed in December:
9.7mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity
Georgetown, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Georgetown, IL
- Average rainfall in January:
1.61" - Average rainfall in February:
1.38" - Average rainfall in March:
2.32" - Average rainfall in April:
3.23" - Average rainfall in May:
3.15" - Average rainfall in June:
2.91"
- Average rainfall in July:
2.44" - Average rainfall in August:
2.24" - Average rainfall in September:
1.38" - Average rainfall in October:
2.05" - Average rainfall in November:
1.46" - Average rainfall in December:
1.46"
The wettest month (with the highest rainfall) is April (3.23").
The driest months (with the least rainfall) are February and September (1.38").
Average rainfall days
Georgetown, IL
- Average rainfall days in January:
7.3 days - Average rainfall days in February:
6.6 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
15.3 days - Average rainfall days in May:
18 days - Average rainfall days in June:
17.3 days
- Average rainfall days in July:
17.8 days - Average rainfall days in August:
14.6 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
12.4 days - Average rainfall days in November:
8.9 days - Average rainfall days in December:
8.8 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (6.6 days).
Average snowfall
Georgetown, IL
The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Georgetown, IL
- Average snowfall days in January:
10.6 days - Average snowfall days in February:
8.9 days - Average snowfall days in March:
4.3 days - Average snowfall days in April:
0.9 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:
2.5 days - Average snowfall days in December:
7.9 days
The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Georgetown, 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 2min - Average daylight in June:
15h and 0min
- 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 0min - 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 24min).
- Average sunshine in January:
4h and 0min - Average sunshine in February:
4h and 1min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 5min - Average sunshine in October:
6h and 2min - 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 0min).
Average sunshine days
Georgetown, IL
- Average sunshine days in January:
15 days - Average sunshine days in February:
13.1 days - Average sunshine days in March:
14.6 days - Average sunshine days in April:
11.6 days - Average sunshine days in May:
10 days - Average sunshine days in June:
10.2 days
- Average sunshine days in July:
9.5 days - Average sunshine days in August:
11.9 days - Average sunshine days in September:
15.2 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
18 days - Average sunshine days in December:
15.6 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (9.5 days).
Average UV index
Georgetown, IL
The months with the highest UV index are 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
Georgetown, IL
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are June, August and September (Cloud cover 32).
Average visibility
Georgetown, 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).