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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 a wintry winter month in Collinsville, Ohio, with temperature in the range of an average high of 34°F (1.1°C) and an average low of 21.6°F (-5.8°C). January, on average, is the coldest month, registering a high temperature of 34°F (1.1°C) and a low 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 25.2°F (-3.8°C) and 38.7°F (3.7°C). The commencement of February brings an average high-temperature of a still icy 38.7°F (3.7°C), marking an inconsequential divergence from January. Weather in February »
Weather in March
March, the first month of the spring in Collinsville, is a frosty month, with an average temperature ranging between max 49.5°F (9.7°C) and min 34°F (1.1°C). An escalation in the average high-temperature is seen with the onset of March, moving from a cold 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 comfortable spring month in Collinsville, Ohio, with an average temperature varying between 61.3°F (16.3°C) and 43.9°F (6.6°C). In Collinsville, the onset of April comes with an increased average high-temperature, moving from March's chilly 49.5°F (9.7°C) to an enjoyable 61.3°F (16.3°C). Weather in April »
Weather in May
May, the last month of the spring in Collinsville, is a pleasant month, with temperature in the range of an average low of 54.7°F (12.6°C) and an average high of 71.2°F (21.8°C). May shows a rise in the average high-temperature, moving from April's enjoyable 61.3°F (16.3°C) to an agreeable 71.2°F (21.8°C). Weather in May »
Weather in June
June, the first month of the summer in Collinsville, is a moderately hot month, with an average temperature fluctuating between 61.9°F (16.6°C) and 78.4°F (25.8°C). Observing a minor shift, the average high-temperature during June adjusts from May's agreeable 71.2°F (21.8°C) to a moderately hot 78.4°F (25.8°C). Weather in June »
Weather in July
July, like June, in Collinsville, Ohio, is a moderately hot summer month, with an average temperature fluctuating between 81.5°F (27.5°C) and 64.6°F (18.1°C). The temperatures reach their highest averages in July, with highs of 81.5°F (27.5°C) and lows of 64.6°F (18.1°C). The heat index value for July is evaluated at a hot 87.8°F (31°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Collinsville, Ohio, with an average temperature fluctuating between 62.4°F (16.9°C) and 80.8°F (27.1°C). The average high-temperature in August, at a still moderately hot 80.8°F (27.1°C), reveals a modest deviation from July's 81.5°F (27.5°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Collinsville, Ohio, with an average temperature varying between 57.2°F (14°C) and 75.4°F (24.1°C). During the shift to September, a minor reduction in average high-temperature is observed, shifting from a warm 80.8°F (27.1°C) in August to a still moderately hot 75.4°F (24.1°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Collinsville, Ohio, with an average temperature varying between 46.6°F (8.1°C) and 63°F (17.2°C). The shift from September to October corresponds with a decrease in the average high-temperature, down to a comfortable 63°F (17.2°C) from a moderately hot 75.4°F (24.1°C). Weather in October »
Weather in November
November, the last month of the autumn in Collinsville, is another chilly month, with temperature in the range of an average low of 35.6°F (2°C) and an average high of 49.5°F (9.7°C). The start of November signals a decrease in the average high-temperature, transitioning from a comfortable 63°F (17.2°C) in October to a chilly 49.5°F (9.7°C). Weather in November »
Weather in December
December, the first month of the winter in Collinsville, is also a wintry month, with an average temperature varying between 28.8°F (-1.8°C) and 39.6°F (4.2°C). With the beginning of December, the average high-temperature shows a decrease, transitioning from a chilly 49.5°F (9.7°C) in November to a cold 39.6°F (4.2°C). Weather in December »
[Resources]Frequently asked questions
What month is the coldest in Collinsville?
January tends to be the coldest month in Collinsville, Ohio, with temperatures averaging a daily high of 34°F (1.1°C) and a low of 21.6°F (-5.8°C).
What are the most humid months in Collinsville?
The months with the highest humidity in Collinsville, Ohio, are January, February and December, with an average relative humidity of 82%.
How many days does it rain in Collinsville?
Throughout the year, in Collinsville, there are 169 rainfall days, and 31.85" (809mm) of precipitation is accumulated.
When does it snow in Collinsville?
January through April, October through December are months with snowfall in Collinsville, Ohio.
When does it snow the most in Collinsville?
January is the month with the most snowfall in Collinsville. Snow falls for 12.3 days and accumulates 3.11" (79mm) of snow.
How many days does it snow in Collinsville?
Throughout the year, in Collinsville, there are 40.7 snowfall days, and 12.48" (317mm) of snow is accumulated.
What is the month with the least sunshine in Collinsville?
January has the least sunshine of the year, with an average of 3.8h of sunshine.
When is the lowest UV index in Collinsville?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Collinsville, Ohio.
When is Daylight Saving Time (DST) in Collinsville?
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?
The month with the most rainfall in Collinsville is May, when the rain falls for 20.5 days and typically aggregates up to 4.09" (104mm) of precipitation.
When it does not snow in Collinsville?
In Collinsville, Ohio, snow does not fall in May through September.
When are the longest days in Collinsville?
June has the longest days of the year in Collinsville, Ohio, with an average of 14h and 54min of daylight.
What are the months with the most sunshine in Collinsville?
The months with the most sunshine are June and July, with an average of 10.2h of sunshine.
What are the months with the highest UV index in Collinsville?
June through August, with an average maximum UV index of 6, are months with the highest UV index in Collinsville.
What is the warmest month in Collinsville?
Collinsville's July weather, with an average high temperature of 81.5°F (27.5°C) and an average low temperature of 64.6°F (18.1°C), tends to be the warmest of the year.
What is the driest month in Collinsville?
The month with the least rainfall in Collinsville is September, when the rain falls for 14.4 days and typically collects 1.89" (48mm) of precipitation.
What is the least humid month in Collinsville?
The months with the lowest humidity in Collinsville, Ohio, are October and November, with an average relative humidity of 75%.
What is the month with the shortest days in Collinsville?
December has the shortest days of the year in Collinsville, Ohio, with an average of 9h and 24min of daylight.
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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