Climate and monthly weather forecastCollinsville, OK
Climate and monthly weather forecast
Weather in January
January, like December, is a frosty winter month in Collinsville, Oklahoma, with an average temperature fluctuating between 30.4°F (-0.9°C) and 45.9°F (7.7°C). January is Collinsville's coldest month, registering average high temperatures of 45.9°F (7.7°C) and lows of 30.4°F (-0.9°C). Weather in January »Weather in February
The last month of the winter, February, is another chilly month in Collinsville, Oklahoma, with an average temperature varying between 34°F (1.1°C) and 49.3°F (9.6°C). With February's arrival, Collinsville notes an average high-temperature of a still frosty 49.3°F (9.6°C), closely following the trend of the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a mild month in Collinsville, Oklahoma, with temperature in the range of an average high of 60.4°F (15.8°C) and an average low of 43.3°F (6.3°C). The transition to March introduces an increase in the average high-temperature, shifting from a chilly 49.3°F (9.6°C) in February to a moderate 60.4°F (15.8°C). Weather in March »Weather in April
April in Collinsville, Oklahoma, is a pleasant spring month, with an average temperature ranging between max 68.4°F (20.2°C) and min 50.5°F (10.3°C). April marks a minor ascent in the average high-temperature, adjusting from March's mild 60.4°F (15.8°C) to an agreeable 68.4°F (20.2°C). Weather in April »Weather in May
The last month of the spring, May, is a warm month in Collinsville, Oklahoma, with temperature in the range of an average low of 59°F (15°C) and an average high of 75.7°F (24.3°C). Collinsville's transition into May is noticed by a slight rise in the average high-temperature, advancing from an agreeable 68.4°F (20.2°C) in April to a moderately hot 75.7°F (24.3°C). Weather in May »Weather in June
The first month of the summer, June, is a hot month in Collinsville, Oklahoma, with an average temperature fluctuating between 68.9°F (20.5°C) and 86°F (30°C). The average high-temperature increases in June, moving from a moderately hot 75.7°F (24.3°C) in May to a tropical 86°F (30°C). Weather in June »Weather in July
July, like June, is a hot summer month in Collinsville, Oklahoma, with an average temperature ranging between max 91°F (32.8°C) and min 72.1°F (22.3°C). July temperatures tend to peak at an average high of 91°F (32.8°C) and dip to a low of 72.1°F (22.3°C). July's average heat index is estimated at a scorching 109.4°F (43°C). Weather in July »Weather in August
The last month of the summer, August, is another tropical month in Collinsville, Oklahoma, with an average temperature fluctuating between 90.1°F (32.3°C) and 70°F (21.1°C). Collinsville's shift into August is marked by a subtle change to a still hot 90.1°F (32.3°C) from July's 91°F (32.8°C) in temperature. Weather in August »Weather in September
September, the first month of the autumn in Collinsville, is also a moderately hot month, with an average temperature ranging between min 63.5°F (17.5°C) and max 83.1°F (28.4°C). Collinsville's September weather features a light decline in high-temperatures, reducing from a tropical 90.1°F (32.3°C) in August to a warm 83.1°F (28.4°C). Weather in September »Weather in October
October, the same as September, in Collinsville, Oklahoma, is another pleasant autumn month, with an average temperature fluctuating between 52.7°F (11.5°C) and 70.2°F (21.2°C). The start of October comes with a reduction in the average high-temperature, receding from a warm 83.1°F (28.4°C) in September to a pleasant 70.2°F (21.2°C). Weather in October »Weather in November
The last month of the autumn, November, is also a moderate month in Collinsville, Oklahoma, with an average temperature fluctuating between 41.9°F (5.5°C) and 58.1°F (14.5°C). The onset of November is marked by a decrease in temperature, transitioning from a pleasant 70.2°F (21.2°C) in October to a mild 58.1°F (14.5°C). Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in Collinsville, Oklahoma, with an average temperature varying between 33.6°F (0.9°C) and 47.7°F (8.7°C). The decrease of average high-temperatures is mild in December, with a decline from a moderate 58.1°F (14.5°C) in November to a frosty 47.7°F (8.7°C). Weather in December »Updated: Jul 18, 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 Collinsville, the lowest temperatures are generally noted in January, averaging a high of 45.9°F (7.7°C) and a low of 30.4°F (-0.9°C).
The months with the lowest humidity are January, August and October, with an average relative humidity of 68%.
The month with the least rainfall is January, when the rain falls for 6.1 days and typically collects 1.22" (31mm) of precipitation.
In Collinsville, during the entire year, the rain falls for 132.6 days and collects up to 29.69" (754mm) of precipitation.
January through March, November and December are months with snowfall.
In Collinsville, during the entire year, snow falls for 6.4 days and aggregates up to 3.15" (80mm) of snow.
The month with the most snowfall is February, when snow falls for 2.2 days and typically aggregates up to 1.46" (37mm) 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.
In Collinsville, snow does not fall in April through October.
The most humid month is May, with an average relative humidity of 80%.
May is the month with the most rainfall. Rain falls for 15.8 days and accumulates 5.28" (134mm) of precipitation.
The month with the longest days is June, with an average of 14h and 36min of daylight.
June and July, with an average maximum UV index of 7, are months with the highest UV index in Collinsville.
July, with its high-temperature average of 91°F (32.8°C) and a low-temperature average of 72.1°F (22.3°C), is the warmest month.
July has the most sunshine of the year, with an average of 11h of sunshine.
With an average of 9h and 42min of daylight, December has the shortest days of the year.
December has the least sunshine of the year, with an average of 5.6h of sunshine.
December is the month with the lowest UV index, with an average maximum UV index of 2.
Average temperature
Collinsville, OK
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (45.9°F).
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).
Average pressure
Collinsville, OK
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.91"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.94"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed
Collinsville, OK
- Average wind speed in January:
9.8mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10.7mph - Average wind speed in April:
10.6mph - Average wind speed in May:
8.9mph - Average wind speed in June:
8.2mph
- Average wind speed in July:
7mph - Average wind speed in August:
7mph - Average wind speed in September:
7.5mph - Average wind speed in October:
9.1mph - Average wind speed in November:
9.8mph - Average wind speed in December:
9.2mph
The windiest month (with the highest average wind speed) is March (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity
Collinsville, OK
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January, August and October (68%).
Average rainfall
Collinsville, OK
- Average rainfall in January:
1.22" - Average rainfall in February:
1.3" - Average rainfall in March:
2.44" - Average rainfall in April:
2.8" - Average rainfall in May:
5.28" - Average rainfall in June:
1.93"
- Average rainfall in July:
2.48" - Average rainfall in August:
3.31" - Average rainfall in September:
3.39" - Average rainfall in October:
2.99" - Average rainfall in November:
1.26" - Average rainfall in December:
1.3"
The wettest month (with the highest rainfall) is May (5.28").
The driest month (with the least rainfall) is January (1.22").
Average rainfall days
Collinsville, OK
- Average rainfall days in January:
6.1 days - Average rainfall days in February:
8.6 days - Average rainfall days in March:
11.8 days - Average rainfall days in April:
14.7 days - Average rainfall days in May:
15.8 days - Average rainfall days in June:
12.2 days
- Average rainfall days in July:
12.9 days - Average rainfall days in August:
12.9 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
11.6 days - Average rainfall days in November:
7.6 days - Average rainfall days in December:
6.9 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (6.1 days).
Average snowfall
Collinsville, OK
The month with the highest snowfall is February (1.46").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Collinsville, OK
- Average snowfall days in January:
2.2 days - Average snowfall days in February:
2.2 days - Average snowfall days in March:
0.5 days - Average snowfall days in April:
0.1 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 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
0.9 days
The months with the highest number of snowfall days are January and February (2.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Collinsville, OK
- Average daylight in January:
10h and 0min - Average daylight in February:
10h and 54min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
14h and 6min - Average daylight in June:
14h and 36min
- Average daylight in July:
14h and 24min - Average daylight in August:
13h and 30min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 12min - Average daylight in December:
9h and 42min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January:
5h and 48min - Average sunshine in February:
6h and 24min - Average sunshine in March:
6h and 54min - Average sunshine in April:
8h and 18min - Average sunshine in May:
8h and 42min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
11h and 0min - Average sunshine in August:
10h and 54min - Average sunshine in September:
8h and 54min - Average sunshine in October:
6h and 24min - Average sunshine in November:
6h and 0min - Average sunshine in December:
5h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days
Collinsville, OK
- Average sunshine days in January:
21.9 days - Average sunshine days in February:
16.8 days - Average sunshine days in March:
16.3 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
13.5 days - Average sunshine days in June:
15.7 days
- Average sunshine days in July:
14.8 days - Average sunshine days in August:
15.8 days - Average sunshine days in September:
16.1 days - Average sunshine days in October:
17.9 days - Average sunshine days in November:
21.3 days - Average sunshine days in December:
21.9 days
The months with the most sunshine days are January and December (21.9 days).
The month with the least sunshine days is May (13.5 days).
Average UV index
Collinsville, OK
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover
Collinsville, OK
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility
Collinsville, OK
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).
