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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, is an icy winter month in Collinsville, Ohio, with an average temperature fluctuating between 34°F (1.1°C) and 21.6°F (-5.8°C). Temperature readings reach their annual highs in January, averaging 34°F (1.1°C) and a minimum average of 21.6°F (-5.8°C). Weather in January »
Weather in February
February, the last month of the winter in Collinsville, is another cold month, with an average temperature varying between 38.7°F (3.7°C) and 25.2°F (-3.8°C). Collinsville's February reports an average high-temperature of a still icy 38.7°F (3.7°C), exhibiting a minor difference from January. Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Collinsville, Ohio, with an average temperature fluctuating between 34°F (1.1°C) and 49.5°F (9.7°C). The commencement of March sees a shift in the average high-temperature, moving from a wintry 38.7°F (3.7°C) in February to a frosty 49.5°F (9.7°C). Weather in March »
Weather in April
April is a refreshing spring month in Collinsville, Ohio, with an average temperature fluctuating between 61.3°F (16.3°C) and 43.9°F (6.6°C). The onset of April brings a temperature shift, with the average high-temperature moving from a frosty 49.5°F (9.7°C) in March to a comfortable 61.3°F (16.3°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Collinsville, Ohio, with an average temperature varying between 71.2°F (21.8°C) and 54.7°F (12.6°C). The average high-temperature increases in May, moving from an enjoyable 61.3°F (16.3°C) in April to a pleasant 71.2°F (21.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Collinsville, Ohio, with an average temperature varying between 61.9°F (16.6°C) and 78.4°F (25.8°C). With the transition into June, Collinsville experiences a subtle uplift in average high-temperatures, adjusting from a pleasant 71.2°F (21.8°C) in May to a warm 78.4°F (25.8°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Collinsville, Ohio, with temperature in the range of an average low of 64.6°F (18.1°C) and an average high of 81.5°F (27.5°C). July stands out as Collinsville's warmest month, with temperatures ranging between an average high of 81.5°F (27.5°C) and a low of 64.6°F (18.1°C). July's average heat index is evaluated 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 Collinsville, Ohio, with an average temperature varying between 80.8°F (27.1°C) and 62.4°F (16.9°C). The shift from July to August is characterized by an average high-temperature of a still warm 80.8°F (27.1°C), not significantly different from the 81.5°F (27.5°C) of July. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Collinsville, Ohio, with an average temperature varying between 75.4°F (24.1°C) and 57.2°F (14°C). A subtle shift in Collinsville's weather is observed as August turns into September, with the average high temperature reducing from 80.8°F (27.1°C) to a still warm 75.4°F (24.1°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Collinsville, Ohio, with an average temperature varying between 46.6°F (8.1°C) and 63°F (17.2°C). The transition into October is accompanied by a temperature decrease, with the average high-temperature shifting from a moderately hot 75.4°F (24.1°C) in September to an enjoyable 63°F (17.2°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Collinsville, Ohio, with temperature in the range of an average high of 49.5°F (9.7°C) and an average low of 35.6°F (2°C). November's onset corresponds with a shift in the average high-temperature, moving from a comfortable 63°F (17.2°C) in October to a frosty 49.5°F (9.7°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Collinsville, Ohio, with an average temperature varying between 28.8°F (-1.8°C) and 39.6°F (4.2°C). The arrival of December signals a shift in temperature, down from a chilly 49.5°F (9.7°C) in November to a cold 39.6°F (4.2°C). Weather in December »
Updated: Aug 15, 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 is the coldest month?
The coldest temperatures occur during January, when averages reach a peak of 34°F (1.1°C) and a low of 21.6°F (-5.8°C).
What is the most humid month?
January, February and December, with an average relative humidity of 82%, are most humid months.
How much does it rain?
In Collinsville, during the entire year, the rain falls for 169 days and collects up to 31.85" (809mm) of precipitation.
When does it snow?
Months with snowfall are January through April, October through December.
What is the snowiest month?
January is the month with the most snowfall. Snow falls for 12.3 days and accumulates 3.11" (79mm) of snow.
How much does it snow?
Throughout the year, there are 40.7 snowfall days, and 12.48" (317mm) of snow is accumulated.
What is the month with the least sunshine?
January has the least sunshine of the year in Collinsville, with an average of 3.8h of sunshine.
When is the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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 wettest month in Collinsville?
May is the month with the most rainfall. Rain falls for 20.5 days and accumulates 4.09" (104mm) of precipitation.
When it does not snow?
May through September are months without snowfall.
When are the longest days?
The month with the longest days is June, with an average of 14h and 54min of daylight.
What is the month with the most sunshine?
June and July, with an average of 10.2h of sunshine, are months with the most sunshine.
What are the months with the highest UV index?
The months with the highest UV index in Collinsville are June through August, with an average maximum UV index of 6.
What part of the year is the hottest?
In Collinsville, July is known for its average highest temperatures, reaching a high of 81.5°F (27.5°C) and a low of 64.6°F (18.1°C).
What is the driest month?
September is the month with the least rainfall. Rain falls for 14.4 days and accumulates 1.89" (48mm) of precipitation.
What is the least humid month?
October and November, with an average relative humidity of 75%, are the least humid months.
What is the month with the shortest days?
With an average of 9h and 24min of daylight, December has the shortest days of the year in Collinsville.
Average temperature
Collinsville, OH
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (34°F).
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure
Collinsville, OH
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.98"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:
30.14"Hg - Average pressure in December:
30.12"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Collinsville, OH
- Average wind speed in January:
9.8mph - Average wind speed in February:
9.7mph - Average wind speed in March:
9.4mph - Average wind speed in April:
9.4mph - Average wind speed in May:
7.6mph - Average wind speed in June:
6.8mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.7mph - Average wind speed in September:
6.3mph - Average wind speed in October:
8mph - Average wind speed in November:
8.6mph - Average wind speed in December:
8.9mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity
Collinsville, OH
The months with the highest relative humidity are January, February and December (82%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall
Collinsville, OH
- Average rainfall in January:
2.4" - Average rainfall in February:
2.4" - Average rainfall in March:
2.87" - Average rainfall in April:
3.27" - Average rainfall in May:
4.09" - Average rainfall in June:
2.76"
- Average rainfall in July:
2.68" - Average rainfall in August:
2.4" - Average rainfall in September:
1.89" - Average rainfall in October:
2.28" - Average rainfall in November:
2.24" - Average rainfall in December:
2.56"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days
Collinsville, OH
- Average rainfall days in January:
9.5 days - Average rainfall days in February:
9.2 days - Average rainfall days in March:
14.3 days - Average rainfall days in April:
16.5 days - Average rainfall days in May:
20.5 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
15.2 days - Average rainfall days in September:
14.4 days - Average rainfall days in October:
12.9 days - Average rainfall days in November:
10.3 days - Average rainfall days in December:
12.1 days
The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is February (9.2 days).
Average snowfall
Collinsville, OH
The month with the highest snowfall is January (3.11").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Collinsville, OH
- Average snowfall days in January:
12.3 days - Average snowfall days in February:
8.7 days - Average snowfall days in March:
5.8 days - Average snowfall days in April:
1.5 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:
2.8 days - Average snowfall days in December:
9.2 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Collinsville, OH
- Average daylight in January:
9h and 5min - 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:
14h and 5min
- 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: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
3h and 5min - Average sunshine in February:
5h and 0min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 3min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 2min - Average sunshine in October:
6h and 4min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Collinsville, OH
- Average sunshine days in January:
12 days - Average sunshine days in February:
12 days - Average sunshine days in March:
11.7 days - Average sunshine days in April:
11.6 days - Average sunshine days in May:
8.8 days - Average sunshine days in June:
9.8 days
- Average sunshine days in July:
11 days - Average sunshine days in August:
12.6 days - Average sunshine days in September:
13.9 days - Average sunshine days in October:
16.3 days - Average sunshine days in November:
16.7 days - Average sunshine days in December:
11.7 days
The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is May (8.8 days).
Average UV index
Collinsville, OH
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, November and December (UV index 2).
Average cloud cover
Collinsville, OH
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
Collinsville, OH
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Collinsville, Ohio, USA
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