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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, in River Forest, Indiana, is an icy winter month, with an average temperature ranging between min 20.5°F (-6.4°C) and max 32.2°F (0.1°C). During the coldest month, January, temperatures average a high of 32.2°F (0.1°C) and a low of 20.5°F (-6.4°C). Weather in January »
Weather in February
The last month of the winter, February, is also an icy month in River Forest, Indiana, with temperature in the range of an average high of 36.9°F (2.7°C) and an average low of 23.7°F (-4.6°C). The transition from January to February brings an average high-temperature of a still wintry 36.9°F (2.7°C), barely different from January's 32.2°F (0.1°C). Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in River Forest, Indiana, with an average temperature ranging between min 33.8°F (1°C) and max 48.6°F (9.2°C). March's arrival sees a rise in the average high-temperature, jumping from February's wintry 36.9°F (2.7°C) to a chilly 48.6°F (9.2°C). Weather in March »
Weather in April
April is a moderate spring month in River Forest, Indiana, with an average temperature fluctuating between 44.1°F (6.7°C) and 60.4°F (15.8°C). As River Forest enters April, the average high-temperature increases from the a frosty 48.6°F (9.2°C) of March to a mild 60.4°F (15.8°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in River Forest, Indiana, with an average temperature fluctuating between 55°F (12.8°C) and 71.4°F (21.9°C). River Forest's transition into May sees a rise in the average high-temperature, advancing from a moderate 60.4°F (15.8°C) in April to an agreeable 71.4°F (21.9°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in River Forest, Indiana, with an average temperature fluctuating between 79.3°F (26.3°C) and 62.2°F (16.8°C). As May transitions into June, River Forest notices a gentle rise in the average high-temperature, transitioning from an agreeable 71.4°F (21.9°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 River Forest, Indiana, with temperature in the range of an average high of 81.3°F (27.4°C) and an average low of 64.8°F (18.2°C). River Forest's warmest month, July, generally records average temperatures ranging from a high of 81.3°F (27.4°C) to a low of 64.8°F (18.2°C). The heat index value during July is calculated to be a tropical 87.8°F (31°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in River Forest, Indiana, with an average temperature ranging between min 62.4°F (16.9°C) and max 80.1°F (26.7°C). With the onset of August, the average high-temperature stands at a still warm 80.1°F (26.7°C), closely aligned with July's 81.3°F (27.4°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in River Forest, Indiana, with an average temperature fluctuating between 57.4°F (14.1°C) and 74.5°F (23.6°C). The onset of September results in a small decrease in the average high-temperature, moderately receding from 80.1°F (26.7°C) in August to a still moderately hot 74.5°F (23.6°C). Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in River Forest, Indiana, with an average temperature varying between 62.2°F (16.8°C) and 46.6°F (8.1°C). In River Forest, the average high-temperature in October decreases from a warm 74.5°F (23.6°C) in September to an enjoyable 62.2°F (16.8°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in River Forest, Indiana, with temperature in the range of an average low of 35.4°F (1.9°C) and an average high of 48.6°F (9.2°C). November brings a decrease in the average high-temperature, falling from October's enjoyable 62.2°F (16.8°C) to a chilly 48.6°F (9.2°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in River Forest, Indiana, with temperature in the range of an average high of 38.1°F (3.4°C) and an average low of 27.5°F (-2.5°C). River Forest's weather in December involves a decrease in the average high-temperature, moving down from November's chilly 48.6°F (9.2°C) to a wintry 38.1°F (3.4°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest month in River Forest?
With average temperatures fluctuating between a high of 32.2°F (0.1°C) and a low of 20.5°F (-6.4°C), January stands out as the coldest month.
What are the most humid months in River Forest?
The months with the highest humidity are January and December, with an average relative humidity of 83%.
How much does it rain in River Forest?
Throughout the year, in River Forest, there are 142.1 rainfall days, and 20.91" (531mm) of precipitation is accumulated.
When does it snow in River Forest?
Months with snowfall are January through April, October through December.
How much does it snow in River Forest?
In River Forest, Indiana, during the entire year, snow falls for 34.7 days and aggregates up to 8.74" (222mm) of snow.
What is the month with the least sunshine in River Forest?
The month with the least sunshine is January, with an average of 3.7h of sunshine.
What is the month with the lowest UV index in River Forest?
The months with the lowest UV index in River Forest are January, February, October through December, with an average maximum UV index of 2.
What is the driest month in River Forest?
The months with the least rainfall are February and November Rain falls for 6.1 days and accumulates 1.14" (29mm) of rain.
What is the snowiest month in River Forest?
The months with the most snowfall are February and December, with an average 2.17" (55mm) of accumulated snow.
When is Daylight Saving Time (DST) in River Forest?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in River Forest, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
What is the rainiest month in River Forest?
The month with the most rainfall is May, when the rain falls for 17.6 days and typically aggregates up to 2.68" (68mm) of precipitation.
When it does not snow in River Forest?
May through September are months without snowfall in River Forest, Indiana.
When are the longest days in River Forest?
June has the longest days of the year in River Forest, with an average of 15h and 0min of daylight.
What month has the most sunshine in River Forest?
With an average of 10.2h of sunshine, June has the most sunshine of the year.
When is the highest UV index in River Forest?
June through August, with an average maximum UV index of 6, are months with the highest UV index in River Forest.
What part of the year is the hottest in River Forest?
River Forest's temperatures tend to reach their peak averages in July, with a high of 81.3°F (27.4°C) and a low of 64.8°F (18.2°C).
What is the least humid month in River Forest?
The least humid month is October, with an average relative humidity of 74%.
What is the month with the shortest days in River Forest?
The month with the shortest days is December, with an average of 9h and 24min of daylight.
Average temperature
River Forest, IN
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (32.2°F).
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure
River Forest, IN
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.93"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:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
River Forest, IN
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.1mph - Average wind speed in March:
9.8mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8.2mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6mph - Average wind speed in August:
5.9mph - Average wind speed in September:
6.7mph - Average wind speed in October:
8.6mph - Average wind speed in November:
9.3mph - Average wind speed in December:
9.5mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity
River Forest, IN
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall
River Forest, IN
- Average rainfall in January:
1.26" - Average rainfall in February:
1.14" - Average rainfall in March:
1.93" - Average rainfall in April:
2.2" - Average rainfall in May:
2.68" - Average rainfall in June:
2.48"
- Average rainfall in July:
1.97" - Average rainfall in August:
1.97" - Average rainfall in September:
1.38" - Average rainfall in October:
1.3" - Average rainfall in November:
1.14" - Average rainfall in December:
1.46"
The wettest month (with the highest rainfall) is May (2.68").
The driest months (with the least rainfall) are February and November (1.14").
Average rainfall days
River Forest, IN
- Average rainfall days in January:
6.3 days - Average rainfall days in February:
6.1 days - Average rainfall days in March:
12.6 days - Average rainfall days in April:
14.1 days - Average rainfall days in May:
17.6 days - Average rainfall days in June:
15.7 days
- Average rainfall days in July:
15.3 days - Average rainfall days in August:
14.6 days - Average rainfall days in September:
12.4 days - Average rainfall days in October:
11 days - Average rainfall days in November:
8.1 days - Average rainfall days in December:
8.3 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (6.1 days).
Average snowfall
River Forest, IN
The months with the highest snowfall are February and December (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
River Forest, IN
- Average snowfall days in January:
10.4 days - Average snowfall days in February:
7.7 days - Average snowfall days in March:
4.3 days - Average snowfall days in April:
1 days - Average snowfall days in May:
0.2 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:
0.5 days - Average snowfall days in November:
2.9 days - Average snowfall days in December:
7.7 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
River Forest, IN
- 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:
10h and 0min - 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 24min).
- Average sunshine in January:
3h and 4min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 0min - Average sunshine in May:
8h and 4min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 3min - Average sunshine in September:
8h and 1min - Average sunshine in October:
6h and 4min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
River Forest, IN
- Average sunshine days in January:
15.7 days - Average sunshine days in February:
15.1 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
10.7 days - Average sunshine days in June:
11.4 days
- Average sunshine days in July:
12 days - Average sunshine days in August:
13.2 days - Average sunshine days in September:
15 days - Average sunshine days in October:
18.2 days - Average sunshine days in November:
18.5 days - Average sunshine days in December:
15.9 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.7 days).
Average UV index
River Forest, IN
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
River Forest, IN
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are June, July and August (Cloud cover 32).
Average visibility
River Forest, IN
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
River Forest, Indiana, USA
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