Climate and monthly weather forecastCrestwood, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, in Crestwood, Illinois, is another subzero cold winter month, with an average temperature varying between 29.5°F (-1.4°C) and 18.9°F (-7.3°C). With an average high-temperature of 29.5°F (-1.4°C) and an average low-temperature of 18.9°F (-7.3°C), January is the coldest month. Weather in January »Weather in February
February, the last month of the winter in Crestwood, is a wintry month, with an average temperature ranging between min 21.6°F (-5.8°C) and max 32.5°F (0.3°C). The transition from January to February sees an average high-temperature of a cold 32.5°F (0.3°C), indicating a minor variance from the prior month. Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Crestwood, Illinois, with temperature in the range of an average low of 32.4°F (0.2°C) and an average high of 44.2°F (6.8°C). As Crestwood enters March, the average high-temperature increases from the an icy 32.5°F (0.3°C) of February to a chilly 44.2°F (6.8°C). Weather in March »Weather in April
April is a fresh spring month in Crestwood, Illinois, with an average temperature varying between 41.2°F (5.1°C) and 55.2°F (12.9°C). Crestwood, Illinois, in April experiences an increase in the average high-temperature, moving from March's frosty 44.2°F (6.8°C) to a fresh 55.2°F (12.9°C). Weather in April »Weather in May
May, the last month of the spring in Crestwood, is a refreshing month, with temperature in the range of an average high of 66.4°F (19.1°C) and an average low of 51.8°F (11°C). A rise in the average high-temperature is observed during May, moving from a fresh 55.2°F (12.9°C) in April to an enjoyable 66.4°F (19.1°C). Weather in May »Weather in June
June, the first month of the summer in Crestwood, is a warm month, with temperature in the range of an average high of 76.3°F (24.6°C) and an average low of 61.5°F (16.4°C). Crestwood's June weather shows an increase in high-temperatures, moving from May's enjoyable 66.4°F (19.1°C) to a moderately hot 76.3°F (24.6°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Crestwood, Illinois, with an average temperature fluctuating between 81°F (27.2°C) and 66.6°F (19.2°C). Crestwood's temperature records reveal July as the warmest month, marked by average highs of 81°F (27.2°C) and lows of 66.6°F (19.2°C). July's average heat index is estimated at a hot 86°F (30°C). Weather in July »Weather in August
August, the last month of the summer in Crestwood, is another warm month, with an average temperature ranging between max 79.9°F (26.6°C) and min 65.8°F (18.8°C). August's arrival registers an average high-temperature of a still warm 79.9°F (26.6°C), closely aligning with the temperature of the previous month. Weather in August »Weather in September
September, the first month of the autumn in Crestwood, is also a moderately hot month, with an average temperature fluctuating between 73.6°F (23.1°C) and 59.2°F (15.1°C). September indicates a minor shift in the average high-temperature, from August's moderately hot 79.9°F (26.6°C) to a still warm 73.6°F (23.1°C). Weather in September »Weather in October
October, the same as September, in Crestwood, Illinois, is a moderate autumn month, with temperature in the range of an average high of 60.6°F (15.9°C) and an average low of 47.1°F (8.4°C). October's arrival comes with a decrease in the average high-temperature, moving from a moderately hot 73.6°F (23.1°C) in September to a moderate 60.6°F (15.9°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Crestwood, Illinois, with temperature in the range of an average low of 35.1°F (1.7°C) and an average high of 46.2°F (7.9°C). Witnessing a clear drop in November, the average high-temperature declines from October's moderate 60.6°F (15.9°C) to a frosty 46.2°F (7.9°C). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Crestwood, Illinois, with temperature in the range of an average high of 35.2°F (1.8°C) and an average low of 26.4°F (-3.1°C). The commencement of December involves a temperature shift, with the average high-temperature dropping from a chilly 46.2°F (7.9°C) in November to an icy 35.2°F (1.8°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
In Crestwood, January is the coldest month, with temperatures averaging a high of 29.5°F (-1.4°C) and a low of 18.9°F (-7.3°C).
The months with the highest humidity in Crestwood are January and February, with an average relative humidity of 82%.
In Crestwood, Illinois, during the entire year, the rain falls for 147.7 days and collects up to 23.62" (600mm) of precipitation.
January through April, October through December are months with snowfall.
In Crestwood, during the entire year, snow falls for 42.4 days and aggregates up to 11.61" (295mm) of snow.
The month with the least sunshine is January, with an average of 3.7h of sunshine.
February is the month with the most snowfall in Crestwood, Illinois. Snow falls for 9.5 days and accumulates 3.07" (78mm) of snow.
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.
The month with the most rainfall in Crestwood is May, when the rain falls for 17.7 days and typically aggregates up to 3.07" (78mm) of precipitation.
May through September are months without snowfall.
With an average of 15h and 12min of daylight, June has the longest days of the year in Crestwood, Illinois.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
In Crestwood, July is the warmest month, with temperatures averaging a high of 81°F (27.2°C) and a low of 66.6°F (19.2°C).
August has the most sunshine of the year in Crestwood, with an average of 10.5h of sunshine.
October is the least humid month in Crestwood, with an average relative humidity of 72%.
December is the month with the least rainfall in Crestwood, Illinois. Rain falls for 7.4 days and accumulates 1.02" (26mm) of precipitation.
With an average of 9h and 12min of daylight, December has the shortest days of the year in Crestwood, Illinois.
The month with the lowest UV index is December, with an average maximum UV index of 1.
Average temperature
Crestwood, IL
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.5°F).
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure
Crestwood, 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:
30.09"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
Crestwood, IL
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.3mph - Average wind speed in March:
9.6mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8.4mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.7mph - Average wind speed in October:
9.5mph - Average wind speed in November:
10.1mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity
Crestwood, IL
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Crestwood, IL
- Average rainfall in January:
1.18" - Average rainfall in February:
1.18" - Average rainfall in March:
1.3" - Average rainfall in April:
2.32" - Average rainfall in May:
3.07" - Average rainfall in June:
2.95"
- Average rainfall in July:
2.8" - Average rainfall in August:
2.72" - Average rainfall in September:
1.97" - Average rainfall in October:
1.93" - Average rainfall in November:
1.18" - Average rainfall in December:
1.02"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (1.02").
Average rainfall days
Crestwood, IL
- Average rainfall days in January:
6.2 days - Average rainfall days in February:
4.9 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
15.1 days - Average rainfall days in May:
17.7 days - Average rainfall days in June:
16.1 days
- Average rainfall days in July:
18 days - Average rainfall days in August:
16.3 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
12.8 days - Average rainfall days in November:
9.2 days - Average rainfall days in December:
7.4 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (4.9 days).
Average snowfall
Crestwood, IL
The month with the highest snowfall is February (3.07").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Crestwood, IL
- Average snowfall days in January:
11.8 days - Average snowfall days in February:
9.5 days - Average snowfall days in March:
6.1 days - Average snowfall days in April:
2.3 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 days - Average snowfall days in October:
0.4 days - Average snowfall days in November:
2.9 days - Average snowfall days in December:
9.4 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Crestwood, IL
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
3h and 42min - Average sunshine in February:
3h and 54min - Average sunshine in March:
6h and 12min - Average sunshine in April:
7h and 48min - Average sunshine in May:
8h and 54min - Average sunshine in June:
9h and 54min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 30min - Average sunshine in September:
9h and 6min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 6min - Average sunshine in December:
4h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Crestwood, IL
- Average sunshine days in January:
13.9 days - Average sunshine days in February:
13.1 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
11.8 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
10.7 days
- Average sunshine days in July:
9.8 days - Average sunshine days in August:
10 days - Average sunshine days in September:
13 days - Average sunshine days in October:
14.9 days - Average sunshine days in November:
17.5 days - Average sunshine days in December:
15.5 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (9.8 days).
Average UV index
Crestwood, IL
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Crestwood, IL
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility
Crestwood, 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).
