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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 a freezing cold winter month in Gillum, Illinois, with an average temperature fluctuating between 30.7°F (-0.7°C) and 18.9°F (-7.3°C). January, characterized by an average high temperature of 30.7°F (-0.7°C) and a low temperature of 18.9°F (-7.3°C), is generally the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Gillum, is a wintry month, with an average temperature ranging between max 35.6°F (2°C) and min 22.5°F (-5.3°C). Welcoming February, Gillum notes an average high-temperature of a wintry 35.6°F (2°C), nearly consistent with January's 30.7°F (-0.7°C). Weather in February »
Weather in March
March, the first month of the spring in Gillum, is a frosty month, with an average temperature varying between 48.6°F (9.2°C) and 34°F (1.1°C). Entering March, Gillum sees a temperature rise, with the average high-temperature advancing from February's cold 35.6°F (2°C) to a chilly 48.6°F (9.2°C). Weather in March »
Weather in April
April in Gillum, Illinois, is a moderate spring month, with temperature in the range of an average high of 60.4°F (15.8°C) and an average low of 44.2°F (6.8°C). April brings an increase in the average high-temperature, progressing from a frosty 48.6°F (9.2°C) in March to a refreshing 60.4°F (15.8°C). Weather in April »
Weather in May
May, the last month of the spring in Gillum, is a pleasant month, with an average temperature ranging between max 72°F (22.2°C) and min 55.4°F (13°C). With the arrival of May, the average high-temperature transitions from a refreshing 60.4°F (15.8°C) in April to a pleasant 72°F (22.2°C). Weather in May »
Weather in June
June, the first month of the summer in Gillum, is a moderately hot month, with an average temperature fluctuating between 63.1°F (17.3°C) and 79.3°F (26.3°C). In Gillum, the onset of June comes with a modest high-temperature shift, transitioning from May's agreeable 72°F (22.2°C) to a moderately hot 79.3°F (26.3°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Gillum, Illinois, with temperature in the range of an average low of 64.9°F (18.3°C) and an average high of 80.8°F (27.1°C). Gillum's July weather, marked by an average high temperature of 80.8°F (27.1°C) and an average low temperature of 64.9°F (18.3°C), is the warmest in the year. For July, the heat index is calculated to be a hot 87.8°F (31°C). Weather in July »
Weather in August
August, the last month of the summer in Gillum, is another warm month, with an average temperature varying between 79.9°F (26.6°C) and 63.1°F (17.3°C). The onset of August notes an average high-temperature of a still warm 79.9°F (26.6°C), subtly shifted from July's 80.8°F (27.1°C). Weather in August »
Weather in September
September, the first month of the autumn in Gillum, is also a moderately hot month, with temperature in the range of an average high of 75.6°F (24.2°C) and an average low of 57.4°F (14.1°C). Gillum experiences a recorded average high-temperature of a still warm 75.6°F (24.2°C) in September, closely aligned with August's 79.9°F (26.6°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Gillum, Illinois, with an average temperature varying between 62.1°F (16.7°C) and 46.6°F (8.1°C). As October begins, there is a decrease in the average high-temperature, falling from a warm 75.6°F (24.2°C) in September to a refreshing 62.1°F (16.7°C). Weather in October »
Weather in November
November, the last month of the autumn in Gillum, is also a frosty month, with an average temperature fluctuating between 47.7°F (8.7°C) and 34.7°F (1.5°C). November signals a clear temperature drop, with average high-temperatures decreasing from October's enjoyable 62.1°F (16.7°C) to a chilly 47.7°F (8.7°C). Weather in November »
Weather in December
December, the first month of the winter in Gillum, is also a wintry month, with an average temperature fluctuating between 36.5°F (2.5°C) and 26.1°F (-3.3°C). December brings a drop in Gillum's average high-temperature, falling from a chilly 47.7°F (8.7°C) in November to a cold 36.5°F (2.5°C). Weather in December »
[Resources]Frequently asked questions
What are the coldest months in Gillum?
January proves to be the coldest month, recording an average maximum temperature of 30.7°F (-0.7°C) and a minimum temperature of 18.9°F (-7.3°C).
How much does it rain in Gillum?
In Gillum, during the entire year, the rain falls for 163.1 days and collects up to 33.62" (854mm) of precipitation.
When does it snow in Gillum?
January through April, October through December are months with snowfall in Gillum.
When does it snow the most in Gillum?
January is the month with the most snowfall. Snow falls for 12.8 days and accumulates 5.04" (128mm) of snow.
How much does it snow in Gillum?
In Gillum, Illinois, during the entire year, snow falls for 40.7 days and aggregates up to 17.01" (432mm) of snow.
What is the month with the least sunshine in Gillum?
With an average of 3.7h of sunshine, January has the least sunshine of the year in Gillum, Illinois.
What is the month with the lowest UV index in Gillum?
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index.
When is Daylight Saving Time (DST) in Gillum?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Gillum, 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 Gillum?
The month with the most rainfall in Gillum, Illinois, is May, when the rain falls for 20.1 days and typically aggregates up to 4.57" (116mm) of precipitation.
When it does not snow in Gillum?
May through September are months without snowfall.
When are the longest days in Gillum?
June has the longest days of the year, with an average of 15h and 0min of daylight.
What month has the most sunshine in Gillum?
With an average of 9.8h of sunshine, June has the most sunshine of the year.
What are the months with the highest UV index in Gillum?
The months with the highest UV index in Gillum are June through August, with an average maximum UV index of 6.
What are the warmest months in Gillum?
In Gillum, July is the month with the highest recorded average temperatures, measuring a high of 80.8°F (27.1°C) and a low of 64.9°F (18.3°C).
What is the most humid month in Gillum?
The most humid month is July, with an average relative humidity of 86%.
What is the least humid month in Gillum?
The least humid month is October, with an average relative humidity of 71%.
What is the driest month in Gillum?
December is the month with the least rainfall. Rain falls for 9 days and accumulates 1.93" (49mm) of precipitation.
What is the month with the shortest days in Gillum?
With an average of 9h and 18min of daylight, December has the shortest days of the year in Gillum.
Average temperature
Gillum, IL
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.7°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 (18.9°F).
Average pressure
Gillum, 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:
29.94"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.92"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:
30.02"Hg - Average pressure in November:
30.11"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 (29.92"Hg).
Average wind speed
Gillum, IL
- Average wind speed in January:
11.1mph - Average wind speed in February:
11mph - Average wind speed in March:
10.6mph - Average wind speed in April:
10.9mph - Average wind speed in May:
9.3mph - Average wind speed in June:
8mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.7mph - Average wind speed in October:
9.9mph - Average wind speed in November:
10.6mph - Average wind speed in December:
10.6mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity
Gillum, IL
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Gillum, IL
- Average rainfall in January:
1.97" - Average rainfall in February:
2.01" - Average rainfall in March:
2.56" - Average rainfall in April:
3.7" - Average rainfall in May:
4.57" - Average rainfall in June:
4.02"
- Average rainfall in July:
3.15" - Average rainfall in August:
2.68" - Average rainfall in September:
2.2" - Average rainfall in October:
2.76" - Average rainfall in November:
2.09" - Average rainfall in December:
1.93"
The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is December (1.93").
Average rainfall days
Gillum, IL
- Average rainfall days in January:
7.2 days - Average rainfall days in February:
6.9 days - Average rainfall days in March:
13.8 days - Average rainfall days in April:
17.4 days - Average rainfall days in May:
20.1 days - Average rainfall days in June:
18.5 days
- Average rainfall days in July:
19.2 days - Average rainfall days in August:
15.9 days - Average rainfall days in September:
13.2 days - Average rainfall days in October:
12.2 days - Average rainfall days in November:
9.7 days - Average rainfall days in December:
9 days
The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is February (6.9 days).
Average snowfall
Gillum, IL
The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Gillum, IL
- Average snowfall days in January:
12.8 days - Average snowfall days in February:
10.1 days - Average snowfall days in March:
4.8 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:
0.4 days - Average snowfall days in November:
3.3 days - Average snowfall days in December:
8.2 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Gillum, 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:
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:
3h and 4min - Average sunshine in February:
4h and 0min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
9h and 2min - Average sunshine in August:
9h and 4min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 1min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Gillum, IL
- Average sunshine days in January:
13 days - Average sunshine days in February:
12.6 days - Average sunshine days in March:
12.7 days - Average sunshine days in April:
10.6 days - Average sunshine days in May:
8.4 days - Average sunshine days in June:
8.8 days
- Average sunshine days in July:
8.8 days - Average sunshine days in August:
11.8 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
16.4 days - Average sunshine days in November:
17.4 days - Average sunshine days in December:
15 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is May (8.4 days).
Average UV index
Gillum, 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, October, November and December (UV index 2).
Average cloud cover
Gillum, IL
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility
Gillum, IL
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Gillum, Illinois, USA
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