Expand
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 Gilson, Illinois, is another subzero cold winter month, with temperature in the range of an average high of 29.8°F (-1.2°C) and an average low of 17.8°F (-7.9°C). In Gilson, the month of January registers the lowest temperatures, averaging 29.8°F (-1.2°C) at the peak and 17.8°F (-7.9°C) at the lowest. Weather in January »
Weather in February
The last month of the winter, February, is an icy month in Gilson, Illinois, with temperature in the range of an average low of 21.7°F (-5.7°C) and an average high of 34.9°F (1.6°C). February's weather records an average high-temperature of a wintry 34.9°F (1.6°C), showing little deviation from January. Weather in February »
Weather in March
March, the first month of the spring in Gilson, is a frosty month, with temperature in the range of an average high of 48.2°F (9°C) and an average low of 33.3°F (0.7°C). Gilson sees an increase in the average high-temperature with the arrival of March, moving from February's icy 34.9°F (1.6°C) to a chilly 48.2°F (9°C). Weather in March »
Weather in April
April in Gilson, Illinois, is a refreshing spring month, with temperature in the range of an average low of 43.7°F (6.5°C) and an average high of 60.4°F (15.8°C). The shift from March to April brings an increase in the average high-temperature, moving from a chilly 48.2°F (9°C) to a moderate 60.4°F (15.8°C). Weather in April »
Weather in May
May, the last month of the spring in Gilson, is a pleasant month, with temperature in the range of an average low of 54.5°F (12.5°C) and an average high of 71.1°F (21.7°C). As May arrives, a rise in the average high-temperature is observed, moving from a moderate 60.4°F (15.8°C) in April to a pleasant 71.1°F (21.7°C). Weather in May »
Weather in June
June, the first month of the summer in Gilson, is a warm month, with temperature in the range of an average low of 63.1°F (17.3°C) and an average high of 79.5°F (26.4°C). With the onset of June, Gilson experiences a subtle temperature shift, with the average high-temperature moving from an agreeable 71.1°F (21.7°C) in May to a warm 79.5°F (26.4°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Gilson, Illinois, with an average temperature fluctuating between 64.9°F (18.3°C) and 82°F (27.8°C). The temperatures reach their highest averages in July, with highs of 82°F (27.8°C) and lows of 64.9°F (18.3°C). The heat index value during July is evaluated at a hot 89.6°F (32°C). Weather in July »
Weather in August
August, the last month of the summer in Gilson, is another warm month, with an average temperature varying between 81.1°F (27.3°C) and 63.3°F (17.4°C). The commencement of August brings an average high-temperature of a still moderately hot 81.1°F (27.3°C), marking an inconsequential divergence from July. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Gilson, Illinois, with an average temperature fluctuating between 76.1°F (24.5°C) and 56.7°F (13.7°C). The average high-temperature during September registers at a still moderately hot 76.1°F (24.5°C), maintaining a close resemblance to the previous month. Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in Gilson, Illinois, with temperature in the range of an average low of 45.7°F (7.6°C) and an average high of 61.7°F (16.5°C). October is characterized by a noticeable reduction in the average high-temperature, falling from a warm 76.1°F (24.5°C) in September to an enjoyable 61.7°F (16.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Gilson, is also a frosty month, with temperature in the range of an average low of 34°F (1.1°C) and an average high of 47.5°F (8.6°C). The decrease of average high-temperatures is mild in November, with a decline from a comfortable 61.7°F (16.5°C) in October to a frosty 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 Gilson, Illinois, with temperature in the range of an average low of 25°F (-3.9°C) and an average high of 35.8°F (2.1°C). The onset of December is marked by a decrease in temperature, transitioning from a frosty 47.5°F (8.6°C) in November to an icy 35.8°F (2.1°C). Weather in December »
Updated: Feb 12, 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 month is the coldest in Gilson?
January is Gilson's coldest month, registering average high temperatures of 29.8°F (-1.2°C) and lows of 17.8°F (-7.9°C).
What is the driest month in Gilson?
January and December are months with the least rain in Gilson when the rain falls for 4.7 days and typically aggregates up to 0.59" (15mm) of rain.
How many days does it rain in Gilson?
In Gilson, during the entire year, the rain falls for 126 days and collects up to 14.45" (367mm) of precipitation.
When does it snow in Gilson?
Months with snowfall are January through April, October through December.
When does it snow the most in Gilson?
January is the month with the most snowfall in Gilson, Illinois. Snow falls for 10.3 days and accumulates 1.26" (32mm) of snow.
How many days does it snow in Gilson?
In Gilson, during the entire year, snow falls for 32.2 days and aggregates up to 4.8" (122mm) of snow.
What is the month with the least sunshine in Gilson?
January has the least sunshine of the year, with an average of 4.1h of sunshine.
When is the lowest UV index in Gilson?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Gilson, Illinois.
When is Daylight Saving Time (DST) in Gilson?
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 Gilson?
May is the month with the most rainfall in Gilson. Rain falls for 16.3 days and accumulates 2.2" (56mm) of precipitation.
When it does not snow in Gilson?
In Gilson, Illinois, snow does not fall in May through September.
When are the longest days in Gilson?
With an average of 15h and 6min of daylight, June has the longest days of the year.
What is the month with the most sunshine in Gilson?
June and July, with an average of 10.1h of sunshine, are months with the most sunshine.
What are the months with the highest UV index in Gilson?
The months with the highest UV index in Gilson, Illinois, are June through August, with an average maximum UV index of 6.
What month is the hottest in Gilson?
Gilson's warmest month, July, registers temperatures that range from a high of 82°F (27.8°C) to a low of 64.9°F (18.3°C).
What is the most humid month in Gilson?
The most humid month is July, with an average relative humidity of 84%.
What is the least humid month in Gilson?
The least humid month is October, with an average relative humidity of 72%.
What is the month with the shortest days in Gilson?
The month with the shortest days in Gilson is December, with an average of 9h and 18min of daylight.
Average temperature
Gilson, IL
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (29.8°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 (17.8°F).
Average pressure
Gilson, IL
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.93"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:
30.02"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 (29.91"Hg).
Average wind speed
Gilson, IL
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.5mph - Average wind speed in March:
10.5mph - Average wind speed in April:
10.7mph - Average wind speed in May:
8.9mph - 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:
10.3mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity
Gilson, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Gilson, IL
- Average rainfall in January:
0.59" - Average rainfall in February:
0.67" - Average rainfall in March:
0.98" - Average rainfall in April:
1.61" - Average rainfall in May:
2.2" - Average rainfall in June:
1.69"
- Average rainfall in July:
1.54" - Average rainfall in August:
1.18" - Average rainfall in September:
1.22" - Average rainfall in October:
1.34" - Average rainfall in November:
0.83" - Average rainfall in December:
0.59"
The wettest month (with the highest rainfall) is May (2.2").
The driest months (with the least rainfall) are January and December (0.59").
Average rainfall days
Gilson, IL
- Average rainfall days in January:
4.7 days - Average rainfall days in February:
4.4 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
16.3 days - Average rainfall days in June:
16.1 days
- Average rainfall days in July:
14.4 days - Average rainfall days in August:
12.1 days - Average rainfall days in September:
9.5 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
6.9 days - Average rainfall days in December:
6.8 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4.4 days).
Average snowfall
Gilson, IL
The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Gilson, IL
- Average snowfall days in January:
10.3 days - Average snowfall days in February:
7.4 days - Average snowfall days in March:
3.7 days - Average snowfall days in April:
1.1 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:
0.3 days - Average snowfall days in November:
2.3 days - Average snowfall days in December:
7.1 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Gilson, 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 2min
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 18min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 1min - 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 months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
Gilson, IL
- Average sunshine days in January:
17.3 days - Average sunshine days in February:
16.8 days - Average sunshine days in March:
16.5 days - Average sunshine days in April:
12.6 days - Average sunshine days in May:
11.9 days - Average sunshine days in June:
11.4 days
- Average sunshine days in July:
11.2 days - Average sunshine days in August:
14.8 days - Average sunshine days in September:
18.5 days - Average sunshine days in October:
17.5 days - Average sunshine days in November:
19.6 days - Average sunshine days in December:
18.1 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.2 days).
Average UV index
Gilson, 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
Gilson, IL
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility
Gilson, 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).
Gilson, Illinois, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location