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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 Fairview Heights, Illinois, with an average temperature fluctuating between 24.8°F (-4°C) and 37.8°F (3.2°C). The coldest period is January, when temperatures fluctuate between an average high of 37.8°F (3.2°C) and a low of 24.8°F (-4°C). Weather in January »
Weather in February
The last month of the winter, February, is also an icy month in Fairview Heights, Illinois, with an average temperature fluctuating between 42.4°F (5.8°C) and 27.9°F (-2.3°C). Fairview Heights's transition from January to February introduces an average high-temperature of a still cold 42.4°F (5.8°C), marking an insignificant variation from the 37.8°F (3.2°C). Weather in February »
Weather in March
March, the first month of the spring in Fairview Heights, is a fresh month, with temperature in the range of an average high of 54.5°F (12.5°C) and an average low of 37.9°F (3.3°C). The arrival of March brings a change in Fairview Heights's weather, with average high-temperatures moving from February's icy 42.4°F (5.8°C) to a cool 54.5°F (12.5°C). Weather in March »
Weather in April
April is a refreshing spring month in Fairview Heights, Illinois, with an average temperature varying between 47.8°F (8.8°C) and 65.5°F (18.6°C). April shows a rise in the average high-temperature, moving from March's fresh 54.5°F (12.5°C) to an enjoyable 65.5°F (18.6°C). Weather in April »
Weather in May
The last month of the spring, May, is a moderately hot month in Fairview Heights, Illinois, with an average temperature fluctuating between 74.8°F (23.8°C) and 57.9°F (14.4°C). The arrival of May sees a shift in the average high-temperature, moving from a refreshing 65.5°F (18.6°C) in April to a warm 74.8°F (23.8°C). Weather in May »
Weather in June
June, the first month of the summer in Fairview Heights, is also a moderately hot month, with an average temperature varying between 83.7°F (28.7°C) and 66.6°F (19.2°C). The average high-temperature mildly increases in June, edging from a warm 74.8°F (23.8°C) in May to a still moderately hot 83.7°F (28.7°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Fairview Heights, Illinois, with an average temperature ranging between max 85.8°F (29.9°C) and min 68.4°F (20.2°C). July registers as the month with the highest average temperatures, reaching 85.8°F (29.9°C) at its peak and 68.4°F (20.2°C) at the lowest. The heat index for July is calculated to be a torrid 98.6°F (37°C). Weather in July »
Weather in August
August, the last month of the summer in Fairview Heights, is another warm month, with an average temperature fluctuating between 84.6°F (29.2°C) and 66°F (18.9°C). A minimal variation is noted in Fairview Heights's average high-temperature at the onset of August, reaching a still warm 84.6°F (29.2°C) from July's 85.8°F (29.9°C). Weather in August »
Weather in September
September, the first month of the autumn in Fairview Heights, is also a moderately hot month, with an average temperature varying between 59.9°F (15.5°C) and 79.3°F (26.3°C). September begins with an average high-temperature of a still warm 79.3°F (26.3°C), reflecting close similarity to the preceding month. Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Fairview Heights, Illinois, with an average temperature ranging between max 66.7°F (19.3°C) and min 48.9°F (9.4°C). October's arrival comes with a decrease in the average high-temperature, moving from a warm 79.3°F (26.3°C) in September to a comfortable 66.7°F (19.3°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Fairview Heights, Illinois, with an average temperature varying between 37.8°F (3.2°C) and 53.4°F (11.9°C). November brings a decrease in the average high-temperature, shifting from an enjoyable 66.7°F (19.3°C) in October to a fresh 53.4°F (11.9°C). Weather in November »
Weather in December
December, the first month of the winter in Fairview Heights, is also a wintry month, with an average temperature ranging between min 30.6°F (-0.8°C) and max 42.6°F (5.9°C). The arrival of December corresponds with a temperature reduction, down from November's cool 53.4°F (11.9°C) to a wintry 42.6°F (5.9°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest time of year in Fairview Heights?
January proves to be the coldest month in Fairview Heights, recording an average maximum temperature of 37.8°F (3.2°C) and a minimum temperature of 24.8°F (-4°C).
How many days does it rain in Fairview Heights?
Throughout the year, there are 147.1 rainfall days, and 35.43" (900mm) of precipitation is accumulated.
When does it snow in Fairview Heights?
January through March, November and December are months with snowfall.
What is the snowiest month in Fairview Heights?
January is the month with the most snowfall in Fairview Heights. Snow falls for 7.3 days and accumulates 2.4" (61mm) of snow.
How much does it snow in Fairview Heights?
Throughout the year, in Fairview Heights, Illinois, there are 21.1 snowfall days, and 8.11" (206mm) of snow is accumulated.
What is the month with the least sunshine in Fairview Heights?
With an average of 4.5h of sunshine, January has the least sunshine of the year.
When is the lowest UV index in Fairview Heights?
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Fairview Heights.
What is the driest month in Fairview Heights?
February is the month with the least rainfall. Rain falls for 7.8 days and accumulates 1.93" (49mm) of precipitation.
When is Daylight Saving Time (DST) in Fairview Heights?
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 Fairview Heights?
April through October are months without snowfall.
What are the most humid months in Fairview Heights?
The months with the highest humidity in Fairview Heights, Illinois, are May and July, with an average relative humidity of 79%.
What is the rainiest month in Fairview Heights?
The month with the most rainfall is May, when the rain falls for 16.4 days and typically aggregates up to 4.37" (111mm) of precipitation.
What is the month with the highest UV index in Fairview Heights?
The months with the highest UV index are May through August, with an average maximum UV index of 6.
When are the longest days in Fairview Heights?
The month with the longest days in Fairview Heights, Illinois, is June, with an average of 14h and 48min of daylight.
What month has the most sunshine in Fairview Heights?
With an average of 10.3h of sunshine, June has the most sunshine of the year.
What are the warmest months in Fairview Heights?
During the warmest month in Fairview Heights, July, temperatures average a high of 85.8°F (29.9°C) and a low of 68.4°F (20.2°C).
What is the least humid month in Fairview Heights?
The least humid month is October, with an average relative humidity of 71%.
What is the month with the shortest days in Fairview Heights?
With an average of 9h and 30min of daylight, December has the shortest days of the year in Fairview Heights.
Average temperature
Fairview Heights, IL
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (37.8°F).
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure
Fairview Heights, IL
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"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:
30.02"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 (29.92"Hg).
Average wind speed
Fairview Heights, IL
- Average wind speed in January:
9.4mph - Average wind speed in February:
9.3mph - Average wind speed in March:
9.1mph - Average wind speed in April:
9.1mph - Average wind speed in May:
7.5mph - Average wind speed in June:
6.6mph
- Average wind speed in July:
5.6mph - Average wind speed in August:
5.7mph - Average wind speed in September:
6.1mph - Average wind speed in October:
7.9mph - Average wind speed in November:
8.5mph - Average wind speed in December:
8.7mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).
Average humidity
Fairview Heights, IL
The months with the highest relative humidity are May and July (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Fairview Heights, IL
- Average rainfall in January:
2.32" - Average rainfall in February:
1.93" - Average rainfall in March:
2.72" - Average rainfall in April:
3.78" - Average rainfall in May:
4.37" - Average rainfall in June:
3.98"
- Average rainfall in July:
3.43" - Average rainfall in August:
3.31" - Average rainfall in September:
2.2" - Average rainfall in October:
2.95" - Average rainfall in November:
2.17" - Average rainfall in December:
2.28"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is February (1.93").
Average rainfall days
Fairview Heights, IL
- Average rainfall days in January:
6.8 days - Average rainfall days in February:
7.8 days - Average rainfall days in March:
14.3 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
16.4 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
12.9 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
10.6 days - Average rainfall days in November:
10.5 days - Average rainfall days in December:
8.4 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is January (6.8 days).
Average snowfall
Fairview Heights, IL
The month with the highest snowfall is January (2.4").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Fairview Heights, IL
- Average snowfall days in January:
7.3 days - Average snowfall days in February:
6 days - Average snowfall days in March:
2.1 days - Average snowfall days in April:
0.3 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:
0.1 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
1.2 days - Average snowfall days in December:
4 days
The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight / Average sunshine
Fairview Heights, 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 3min - 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 1min - Average sunshine in April:
8h and 2min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 0min - Average sunshine in September:
9h and 1min - Average sunshine in October:
6h and 1min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days
Fairview Heights, IL
- Average sunshine days in January:
17.5 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
13.7 days - Average sunshine days in April:
13.1 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
13.3 days
- Average sunshine days in July:
12.8 days - Average sunshine days in August:
16.2 days - Average sunshine days in September:
16.1 days - Average sunshine days in October:
18.3 days - Average sunshine days in November:
17.3 days - Average sunshine days in December:
18.2 days
The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is May (12.3 days).
Average UV index
Fairview Heights, 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 and December (UV index 2).
Average cloud cover
Fairview Heights, IL
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility
Fairview Heights, 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).
Fairview Heights, Illinois, USA
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