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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 Olympia Fields, Illinois, with an average temperature fluctuating between 18.9°F (-7.3°C) and 29.7°F (-1.3°C). January is Olympia Fields's coldest month, registering average high temperatures of 29.7°F (-1.3°C) and lows of 18.9°F (-7.3°C). Weather in January »
Weather in February
February, the last month of the winter in Olympia Fields, is a cold month, with an average temperature varying between 21.2°F (-6°C) and 33.1°F (0.6°C). As Olympia Fields welcomes February, the average high-temperature stabilizes at a cold 33.1°F (0.6°C), showing little deviation from January's 29.7°F (-1.3°C). Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Olympia Fields, Illinois, with temperature in the range of an average high of 45.5°F (7.5°C) and an average low of 32.4°F (0.2°C). With the transition into March, Olympia Fields experiences an increase in average high-temperatures, moving up from an icy 33.1°F (0.6°C) in February to a chilly 45.5°F (7.5°C). Weather in March »
Weather in April
April is a mild spring month in Olympia Fields, Illinois, with an average temperature varying between 41.7°F (5.4°C) and 56.7°F (13.7°C). An upsurge in temperatures occurs as March gives way to April, with average highs shifting from a frosty 45.5°F (7.5°C) to a refreshing 56.7°F (13.7°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Olympia Fields, Illinois, with an average temperature varying between 52.3°F (11.3°C) and 68.7°F (20.4°C). May's onset is marked by a temperature increase, moving from a moderate 56.7°F (13.7°C) in April to a pleasant 68.7°F (20.4°C). Weather in May »
Weather in June
June, the first month of the summer in Olympia Fields, is a warm month, with temperature in the range of an average low of 61.7°F (16.5°C) and an average high of 77.7°F (25.4°C). Olympia Fields's transition into June sees a rise in the average high-temperature, advancing from an agreeable 68.7°F (20.4°C) in May to a warm 77.7°F (25.4°C). Weather in June »
Weather in July
July, like June, in Olympia Fields, Illinois, is a moderately hot summer month, with temperature in the range of an average high of 81.3°F (27.4°C) and an average low of 65.8°F (18.8°C). The warmest time of the year is July, with temperatures averaging a high of 81.3°F (27.4°C) and a low of 65.8°F (18.8°C). The average heat index in July is estimated at a tropical 87.8°F (31°C). Weather in July »
Weather in August
August, the last month of the summer in Olympia Fields, is another warm month, with an average temperature varying between 64.6°F (18.1°C) and 80.1°F (26.7°C). The commencement of August notes an average high-temperature of a still moderately hot 80.1°F (26.7°C), exhibiting little difference from the previous month. Weather in August »
Weather in September
September, the first month of the autumn in Olympia Fields, is also a moderately hot month, with an average temperature fluctuating between 58.3°F (14.6°C) and 73.9°F (23.3°C). As September arrives, Olympia Fields's weather displays a minor decrease in high-temperatures, transitioning from August's 80.1°F (26.7°C) to a still warm 73.9°F (23.3°C). Weather in September »
Weather in October
October, like September, in Olympia Fields, Illinois, is another enjoyable autumn month, with temperature in the range of an average low of 46.9°F (8.3°C) and an average high of 61.2°F (16.2°C). Olympia Fields experiences a temperature shift at the start of October, with average high-temperatures adjusting from a warm 73.9°F (23.3°C) in September to an enjoyable 61.2°F (16.2°C). Weather in October »
Weather in November
November, the last month of the autumn in Olympia Fields, is another chilly month, with an average temperature ranging between min 34.9°F (1.6°C) and max 46.9°F (8.3°C). November's arrival corresponds with a decrease in average high-temperatures, from October's enjoyable 61.2°F (16.2°C) to a frosty 46.9°F (8.3°C). Weather in November »
Weather in December
December, the first month of the winter in Olympia Fields, is also a wintry month, with an average temperature varying between 25.9°F (-3.4°C) and 35.6°F (2°C). Onset of December comes with a temperature decline, the average high falling from a frosty 46.9°F (8.3°C) in November to an icy 35.6°F (2°C). Weather in December »
Updated: Aug 23, 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 are the coldest months?
Olympia Fields's January weather, marked by an average high temperature of 29.7°F (-1.3°C) and an average low temperature of 18.9°F (-7.3°C), is the coldest in the year.
What is the most humid month?
The months with the highest humidity are January and February, with an average relative humidity of 82%.
How many days does it rain?
Throughout the year, there are 155.6 rainfall days, and 31.3" (795mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through April, October through December.
When does it snow the most in Olympia Fields?
January is the month with the most snowfall. Snow falls for 12.6 days and accumulates 4.53" (115mm) of snow.
How much does it snow in Olympia Fields?
In Olympia Fields, during the entire year, snow falls for 44.6 days and aggregates up to 16.46" (418mm) of snow.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 3.6h of sunshine.
When is Daylight Saving Time (DST) in Olympia Fields?
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 Olympia Fields?
The month with the most rainfall is May, when the rain falls for 17.4 days and typically aggregates up to 4.17" (106mm) of precipitation.
When it does not snow?
May through September are months without snowfall.
When are the longest days?
June has the longest days of the year, with an average of 15h and 6min of daylight.
When is the highest UV index?
June and July, with an average maximum UV index of 6, are months with the highest UV index.
What time of the year is the hottest?
In Olympia Fields, the peak temperatures are generally noted in July, averaging a high of 81.3°F (27.4°C) and a low of 65.8°F (18.8°C).
What month has the most sunshine?
With an average of 10.1h of sunshine, August has the most sunshine of the year.
What is the least humid month?
October is the least humid month, with an average relative humidity of 73%.
What is the driest month?
December is the month with the least rainfall. Rain falls for 7.9 days and accumulates 1.54" (39mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 12min of daylight.
What is the month with the lowest UV index?
December is the month with the lowest UV index, with an average maximum UV index of 1.
Average temperature
Olympia Fields, 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 (29.7°F).
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure
Olympia Fields, IL
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.95"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:
30.01"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Olympia Fields, IL
- Average wind speed in January:
10.2mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.5mph - Average wind speed in April:
9.8mph - Average wind speed in May:
8.3mph - Average wind speed in June:
7.4mph
- Average wind speed in July:
6.4mph - Average wind speed in August:
6.3mph - Average wind speed in September:
7.3mph - Average wind speed in October:
9.1mph - Average wind speed in November:
9.8mph - Average wind speed in December:
9.5mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity
Olympia Fields, IL
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Olympia Fields, IL
- Average rainfall in January:
1.77" - Average rainfall in February:
1.69" - Average rainfall in March:
2.09" - Average rainfall in April:
3.43" - Average rainfall in May:
4.17" - Average rainfall in June:
3.82"
- Average rainfall in July:
3.31" - Average rainfall in August:
2.56" - Average rainfall in September:
2.48" - Average rainfall in October:
2.76" - Average rainfall in November:
1.69" - Average rainfall in December:
1.54"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is December (1.54").
Average rainfall days
Olympia Fields, IL
- Average rainfall days in January:
6.8 days - Average rainfall days in February:
6.1 days - Average rainfall days in March:
12.7 days - Average rainfall days in April:
16.8 days - Average rainfall days in May:
17.4 days - Average rainfall days in June:
17.4 days
- Average rainfall days in July:
17.6 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
13.4 days - Average rainfall days in October:
14.3 days - Average rainfall days in November:
10.4 days - Average rainfall days in December:
7.9 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (6.1 days).
Average snowfall
Olympia Fields, IL
The month with the highest snowfall is January (4.53").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Olympia Fields, IL
- Average snowfall days in January:
12.6 days - Average snowfall days in February:
10.5 days - Average snowfall days in March:
6.1 days - Average snowfall days in April:
1.9 days - Average snowfall days in May:
0.1 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:
4 days - Average snowfall days in December:
9.1 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Olympia Fields, 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 1min
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 12min).
- Average sunshine in January:
3h and 4min - Average sunshine in February:
3h and 5min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
10h and 1min - 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 0min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days
Olympia Fields, IL
- Average sunshine days in January:
13 days - Average sunshine days in February:
11.8 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
10.2 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
10.4 days
- Average sunshine days in July:
11.1 days - Average sunshine days in August:
13.3 days - Average sunshine days in September:
14 days - Average sunshine days in October:
14.4 days - Average sunshine days in November:
16.4 days - Average sunshine days in December:
15 days
The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is April (10.2 days).
Average UV index
Olympia Fields, IL
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Olympia Fields, IL
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility
Olympia Fields, IL
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Olympia Fields, Illinois, USA
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