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 Old Mill Creek, Illinois, is a freezing cold winter month, with an average temperature ranging between min 18.3°F (-7.6°C) and max 27.9°F (-2.3°C). January is the coldest month, with an average high-temperature of 27.9°F (-2.3°C) and an average low-temperature of 18.3°F (-7.6°C). Weather in January »
Weather in February
February, the last month of the winter in Old Mill Creek, is another freezing cold month, with an average temperature fluctuating between 20.7°F (-6.3°C) and 30.6°F (-0.8°C). In Old Mill Creek, Illinois, the average high-temperature in February is relatively the same as in January - a still subzero cold 30.6°F (-0.8°C). Weather in February »
Weather in March
March, the first month of the spring in Old Mill Creek, is a cold month, with an average temperature fluctuating between 41.2°F (5.1°C) and 30.6°F (-0.8°C). In March, the average high-temperature rises from a freezing cold 30.6°F (-0.8°C) in February to a cold 41.2°F (5.1°C). Weather in March »
Weather in April
April is a cool spring month in Old Mill Creek, Illinois, with an average temperature fluctuating between 50.7°F (10.4°C) and 38.8°F (3.8°C). In Old Mill Creek, the average high-temperature in April increases from a cold 41.2°F (5.1°C) in March to a fresh 50.7°F (10.4°C). Weather in April »
Weather in May
May, the last month of the spring in Old Mill Creek, is an enjoyable month, with temperature in the range of an average high of 61.3°F (16.3°C) and an average low of 48.6°F (9.2°C). In Old Mill Creek, the average high-temperature in May increases from a fresh 50.7°F (10.4°C) in April to a comfortable 61.3°F (16.3°C). Weather in May »
Weather in June
The first month of the summer, June, is an agreeable month in Old Mill Creek, Illinois, with an average temperature varying between 70.5°F (21.4°C) and 58.6°F (14.8°C). In June, the average high-temperature increases from a comfortable 61.3°F (16.3°C) in May to an agreeable 70.5°F (21.4°C). Weather in June »
Weather in July
July in Old Mill Creek, Illinois, is a moderately hot summer month, with an average temperature varying between 65.3°F (18.5°C) and 77.5°F (25.3°C). With an average high-temperature of 77.5°F (25.3°C) and an average low-temperature of 65.3°F (18.5°C), July is the warmest month. Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Old Mill Creek, Illinois, with an average temperature varying between 77°F (25°C) and 64.8°F (18.2°C). In Old Mill Creek, the average high-temperature in August is relatively the same as in July - a still moderately hot 77°F (25°C). Weather in August »
Weather in September
September, the first month of the autumn in Old Mill Creek, is still a pleasant month, with an average temperature fluctuating between 58.5°F (14.7°C) and 70.9°F (21.6°C). In Old Mill Creek, the average high-temperature in September marginally drops from a moderately hot 77°F (25°C) in August to an agreeable 70.9°F (21.6°C). Weather in September »
Weather in October
October, the same as September, in Old Mill Creek, Illinois, is another mild autumn month, with an average temperature ranging between max 58.3°F (14.6°C) and min 46.9°F (8.3°C). In Old Mill Creek, the average high-temperature in October drops from an agreeable 70.9°F (21.6°C) in September to a moderate 58.3°F (14.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Old Mill Creek, is another chilly month, with temperature in the range of an average low of 34.7°F (1.5°C) and an average high of 45.1°F (7.3°C). In Old Mill Creek, the average high-temperature in November decreases from a mild 58.3°F (14.6°C) in October to a chilly 45.1°F (7.3°C). Weather in November »
Weather in December
December, the first month of the winter in Old Mill Creek, is still a cold month, with an average temperature varying between 25.3°F (-3.7°C) and 34°F (1.1°C). In December, the average high-temperature drops from a chilly 45.1°F (7.3°C) in November to a cold 34°F (1.1°C). Weather in December »
[Resources]FAQ
What is the coldest month in Old Mill Creek?
With an average high-temperature of 27.9°F (-2.3°C) and an average low-temperature of 18.3°F (-7.6°C), January is the coldest month in Old Mill Creek.
What is the most humid month in Old Mill Creek?
The most humid month in Old Mill Creek is January, with an average relative humidity of 83%.
How many days does it rain in Old Mill Creek?
Throughout the year, in Old Mill Creek, there are 142.5 rainfall days, and 21.5" (546mm) of precipitation is accumulated.
When does it snow in Old Mill Creek?
Months with snowfall in Old Mill Creek, Illinois, are January through April, October through December.
How much does it snow in Old Mill Creek?
In Old Mill Creek, Illinois, during the entire year, snow falls for 45.5 days and aggregates up to 9.37" (238mm) of snow.
What is the month with the least sunshine in Old Mill Creek?
January has the least sunshine of the year, with an average of 3.7h of sunshine.
When is the lowest UV index in Old Mill Creek?
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Old Mill Creek.
What is the snowiest month in Old Mill Creek?
February is the month with the most snowfall. Snow falls for 9.8 days and accumulates 2.6" (66mm) of snow.
When is Daylight Saving Time (DST) in Old Mill Creek?
On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in Old Mill Creek, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from CDT to CST.
When it does not snow in Old Mill Creek?
In Old Mill Creek, snow does not fall in May through September.
What is the wettest month in Old Mill Creek?
The wettest months are June and August, with an average 2.68" (68mm) of rainfall.
When are the longest days in Old Mill Creek?
The month with the longest days is June, with an average of 15h and 14min of daylight.
What is the warmest month in Old Mill Creek?
July is the warmest month, with an average high-temperature of 77.5°F (25.3°C) and an average low-temperature of 65.3°F (18.5°C).
What are the months with the most sunshine in Old Mill Creek?
The months with the most sunshine are July and August, with an average of 10.5h of sunshine.
When is the highest UV index in Old Mill Creek?
The months with the highest UV index in Old Mill Creek, Illinois, are July and August, with an average maximum UV index of 6.
What are the least humid months in Old Mill Creek?
October and November, with an average relative humidity of 75%, are the least humid months.
What is the driest month in Old Mill Creek?
The month with the least rainfall in Old Mill Creek is December, when the rain falls for 8.1 days and typically collects 0.91" (23mm) of precipitation.
What is the month with the shortest days in Old Mill Creek?
December has the shortest days of the year in Old Mill Creek, with an average of 9h and 8min of daylight.
Average temperature
Old Mill Creek, IL
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (27.9°F).
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure
Old Mill Creek, IL
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Old Mill Creek, IL
- Average wind speed in January:
11.9mph - Average wind speed in February:
11.6mph - Average wind speed in March:
10.7mph - Average wind speed in April:
10.9mph - Average wind speed in May:
9.2mph - Average wind speed in June:
8.1mph
- Average wind speed in July:
7.4mph - Average wind speed in August:
7.3mph - Average wind speed in September:
8.8mph - Average wind speed in October:
10.5mph - Average wind speed in November:
11.3mph - Average wind speed in December:
11.1mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).
Average humidity
Old Mill Creek, IL
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall
Old Mill Creek, IL
- Average rainfall in January:
1.06" - Average rainfall in February:
1.06" - Average rainfall in March:
1.1" - Average rainfall in April:
2.44" - Average rainfall in May:
2.48" - Average rainfall in June:
2.68"
- Average rainfall in July:
2.44" - Average rainfall in August:
2.68" - Average rainfall in September:
1.73" - Average rainfall in October:
1.89" - Average rainfall in November:
1.02" - Average rainfall in December:
0.91"
The wettest months (with the highest rainfall) are June and August (2.68").
The driest month (with the least rainfall) is December (0.91").
Average rainfall days
Old Mill Creek, IL
- Average rainfall days in January:
6.4 days - Average rainfall days in February:
5.2 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
16 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
17 days - Average rainfall days in August:
15.7 days - Average rainfall days in September:
12.7 days - Average rainfall days in October:
12.9 days - Average rainfall days in November:
8.9 days - Average rainfall days in December:
8.1 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is February (5.2 days).
Average snowfall
Old Mill Creek, IL
The month with the highest snowfall is February (2.6").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Old Mill Creek, IL
- Average snowfall days in January:
12.4 days - Average snowfall days in February:
9.8 days - Average snowfall days in March:
6.2 days - Average snowfall days in April:
2.4 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:
0.7 days - Average snowfall days in November:
4.2 days - Average snowfall days in December:
9.7 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Old Mill Creek, IL
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 35min - Average daylight in March:
11h and 58min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 37min - Average daylight in June:
15h and 14min
- Average daylight in July:
14h and 55min - Average daylight in August:
13h and 51min - Average daylight in September:
12h and 28min - Average daylight in October:
11h and 2min - Average daylight in November:
9h and 47min - Average daylight in December:
9h and 8min
The month with the longest days is June (Average daylight: 15h and 14min).
The month with the shortest days is December (Average daylight: 9h and 8min).
- Average sunshine in January:
3h and 42min - Average sunshine in February:
3h and 54min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 48min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 48min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 30min - Average sunshine in September:
9h and 12min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 6min - Average sunshine in December:
4h and 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Old Mill Creek, IL
- Average sunshine days in January:
12.4 days - Average sunshine days in February:
12.4 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
12.2 days - Average sunshine days in May:
12.2 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
10.8 days - Average sunshine days in August:
11.6 days - Average sunshine days in September:
13.9 days - Average sunshine days in October:
14.6 days - Average sunshine days in November:
16.5 days - Average sunshine days in December:
15.5 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is July (10.8 days).
Average UV index
Old Mill Creek, IL
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Old Mill Creek, IL
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility
Old Mill Creek, 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).
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