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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, in Richton Park, Illinois, is a freezing cold winter month, with an average temperature ranging between max 29.7°F (-1.3°C) and min 18.9°F (-7.3°C). January, on average, is the coldest month, registering a high temperature of 29.7°F (-1.3°C) and a low of 18.9°F (-7.3°C). Weather in January »
Weather in February
The last month of the winter, February, is a cold month in Richton Park, Illinois, with an average temperature fluctuating between 21.2°F (-6°C) and 33.1°F (0.6°C). A minor adjustment in Richton Park's average high-temperature is noted with the start of February, touching an icy 33.1°F (0.6°C) from January's 29.7°F (-1.3°C). Weather in February »
Weather in March
March, the first month of the spring in Richton Park, is a chilly month, with temperature in the range of an average low of 32.4°F (0.2°C) and an average high of 45.5°F (7.5°C). As Richton Park enters March, the average high-temperature increases from the a cold 33.1°F (0.6°C) of February to a chilly 45.5°F (7.5°C). Weather in March »
Weather in April
April is a moderate spring month in Richton Park, Illinois, with temperature in the range of an average low of 41.7°F (5.4°C) and an average high of 56.7°F (13.7°C). The shift from March to April sees an increase in the average high-temperature, transitioning from a frosty 45.5°F (7.5°C) to a mild 56.7°F (13.7°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Richton Park, Illinois, with an average temperature ranging between max 68.7°F (20.4°C) and min 52.3°F (11.3°C). The arrival of May brings an increase in high-temperatures, moving from a refreshing 56.7°F (13.7°C) in April to an agreeable 68.7°F (20.4°C). Weather in May »
Weather in June
June, the first month of the summer in Richton Park, is a moderately hot month, with temperature in the range of an average high of 77.7°F (25.4°C) and an average low of 61.7°F (16.5°C). As Richton Park transitions into June, the average high-temperature shows a change, moving from a pleasant 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 Richton Park, Illinois, is a moderately hot summer month, with an average temperature fluctuating between 65.8°F (18.8°C) and 81.3°F (27.4°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). For July, the heat index is estimated at a tropical 87.8°F (31°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Richton Park, Illinois, with an average temperature varying between 64.6°F (18.1°C) and 80.1°F (26.7°C). Richton Park indicates an average high-temperature of a still warm 80.1°F (26.7°C) in August, showing minor variation from July's 81.3°F (27.4°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Richton Park, Illinois, with temperature in the range of an average low of 58.3°F (14.6°C) and an average high of 73.9°F (23.3°C). September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's 80.1°F (26.7°C) to a still moderately hot 73.9°F (23.3°C). Weather in September »
Weather in October
October, like September, in Richton Park, Illinois, is another comfortable autumn month, with an average temperature fluctuating between 61.2°F (16.2°C) and 46.9°F (8.3°C). October's onset brings a reduction in the average high-temperature, from a warm 73.9°F (23.3°C) in September to a comfortable 61.2°F (16.2°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Richton Park, Illinois, with temperature in the range of an average high of 46.9°F (8.3°C) and an average low of 34.9°F (1.6°C). The onset of November coincides with a reduction in the average high-temperature, falling from a refreshing 61.2°F (16.2°C) in October to a chilly 46.9°F (8.3°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Richton Park, Illinois, with temperature in the range of an average low of 25.9°F (-3.4°C) and an average high of 35.6°F (2°C). December shows a mild decline in the average high-temperature, falling from November's frosty 46.9°F (8.3°C) to a cold 35.6°F (2°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 part of the year is the coldest in Richton Park?
In Richton Park, the average lowest temperatures are observed in January, with a high of 29.7°F (-1.3°C) and a low of 18.9°F (-7.3°C).
What is the most humid month in Richton Park?
January and February, with an average relative humidity of 82%, are most humid months in Richton Park, Illinois.
How many days does it rain in Richton Park?
In Richton Park, during the entire year, the rain falls for 155.6 days and collects up to 31.3" (795mm) of precipitation.
When does it snow in Richton Park?
Months with snowfall are January through April, October through December.
What is the snowiest month in Richton Park?
The month with the most snowfall in Richton Park is January, when snow falls for 12.6 days and typically aggregates up to 4.53" (115mm) of snow.
How much does it snow in Richton Park?
Throughout the year, there are 44.6 snowfall days, and 16.46" (418mm) of snow is accumulated.
What is the month with the least sunshine in Richton Park?
January has the least sunshine of the year in Richton Park, with an average of 3.6h of sunshine.
When is Daylight Saving Time (DST) in Richton Park?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Richton Park, 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 Richton Park?
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 in Richton Park?
In Richton Park, Illinois, snow does not fall in May through September.
When are the longest days in Richton Park?
June has the longest days of the year in Richton Park, Illinois, with an average of 15h and 6min of daylight.
What are the months with the highest UV index in Richton Park?
The months with the highest UV index in Richton Park, Illinois, are June and July, with an average maximum UV index of 6.
What month is the hottest in Richton Park?
Richton Park's temperature records reveal July as the warmest month, marked by average highs of 81.3°F (27.4°C) and lows of 65.8°F (18.8°C).
What month has the most sunshine in Richton Park?
With an average of 10.1h of sunshine, August has the most sunshine of the year.
What is the least humid month in Richton Park?
October is the least humid month in Richton Park, Illinois, with an average relative humidity of 73%.
What is the driest month in Richton Park?
December is the month with the least rainfall in Richton Park. Rain falls for 7.9 days and accumulates 1.54" (39mm) of precipitation.
What is the month with the shortest days in Richton Park?
December has the shortest days of the year in Richton Park, Illinois, with an average of 9h and 12min of daylight.
What is the month with the lowest UV index in Richton Park?
December is the month with the lowest UV index in Richton Park, with an average maximum UV index of 1.
Average temperature
Richton Park, 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
Richton Park, 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
Richton Park, 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
Richton Park, 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
Richton Park, 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
Richton Park, 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
Richton Park, 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
Richton Park, 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
Richton Park, 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
Richton Park, 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
Richton Park, 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
Richton Park, 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
Richton Park, 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).
Richton Park, Illinois, USA
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