Climate and monthly weather forecastCollinsville, TX
Climate and monthly weather forecast
Weather in January
January, the same as December, is another fresh winter month in Collinsville, Texas, with an average temperature varying between 36.3°F (2.4°C) and 52.2°F (11.2°C). In Collinsville, January is the coldest month, with temperatures averaging a high of 52.2°F (11.2°C) and a low of 36.3°F (2.4°C). Weather in January »Weather in February
February, the last month of the winter in Collinsville, is a mild month, with temperature in the range of an average low of 40.3°F (4.6°C) and an average high of 55.9°F (13.3°C). The advent of February signifies a minor shift to an average high-temperature of a mild 55.9°F (13.3°C), aligning closely with January. Weather in February »Weather in March
March, the first month of the spring in Collinsville, is an enjoyable month, with an average temperature ranging between min 47.8°F (8.8°C) and max 65.1°F (18.4°C). As February transitions into March, a change in temperatures is observed, with average highs moving from 55.9°F (13.3°C) to a still refreshing 65.1°F (18.4°C). Weather in March »Weather in April
April is an agreeable spring month in Collinsville, Texas, with an average temperature ranging between min 54.1°F (12.3°C) and max 72.5°F (22.5°C). In April, the average high-temperature marginally rises from a comfortable 65.1°F (18.4°C) in March to a pleasant 72.5°F (22.5°C). Weather in April »Weather in May
May, the last month of the spring in Collinsville, is a moderately hot month, with an average temperature ranging between max 79.9°F (26.6°C) and min 62.4°F (16.9°C). May's arrival signals a subtle increase in average high-temperatures, moving from April's pleasant 72.5°F (22.5°C) to a moderately hot 79.9°F (26.6°C). Weather in May »Weather in June
June, the first month of the summer in Collinsville, is a tropical month, with an average temperature ranging between min 71.6°F (22°C) and max 89.2°F (31.8°C). The start of June brings a rise in the average high-temperature, moving from a moderately hot 79.9°F (26.6°C) in May to a hot 89.2°F (31.8°C). Weather in June »Weather in July
July, like June, is a hot summer month in Collinsville, Texas, with an average temperature varying between 74.3°F (23.5°C) and 93.6°F (34.2°C). With the transition into July, Collinsville notes an average high-temperature of a still hot 93.6°F (34.2°C), closely resembling June. Weather in July »Weather in August
August, the last month of the summer in Collinsville, is another tropical month, with an average temperature varying between 94.6°F (34.8°C) and 74.3°F (23.5°C). Collinsville's August weather reaches an average high of 94.6°F (34.8°C) and an average low of 74.3°F (23.5°C), making it the warmest month. Throughout August, the heat index is calculated to be an extremely hot 111.2°F (44°C). Weather in August »Weather in September
The first month of the autumn, September, is also a hot month in Collinsville, Texas, with an average temperature varying between 86°F (30°C) and 68°F (20°C). The commencement of September indicates a gentle shift in the average high-temperature, receding from August's tropical 94.6°F (34.8°C) to a still hot 86°F (30°C). Weather in September »Weather in October
October, like September, in Collinsville, Texas, is a moderately hot autumn month, with an average temperature ranging between min 56.3°F (13.5°C) and max 74.3°F (23.5°C). October brings a drop in Collinsville's average high-temperature, falling from a tropical 86°F (30°C) in September to a warm 74.3°F (23.5°C). Weather in October »Weather in November
November, the last month of the autumn in Collinsville, is another comfortable month, with an average temperature ranging between max 63.1°F (17.3°C) and min 46.6°F (8.1°C). November indicates a shift in the average high-temperature, from October's warm 74.3°F (23.5°C) to an enjoyable 63.1°F (17.3°C). Weather in November »Weather in December
The first month of the winter, December, is still a cool month in Collinsville, Texas, with an average temperature varying between 39°F (3.9°C) and 52.9°F (11.6°C). The transition into December involves a decrease in the average high-temperature, falling from a comfortable 63.1°F (17.3°C) in November to a fresh 52.9°F (11.6°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Collinsville, TX
The warmest month (with the highest average high temperature) is August (94.6°F).
The month with the lowest average high temperature is January (52.2°F).
The months with the highest average low temperature are July and August (74.3°F).
The coldest month (with the lowest average low temperature) is January (36.3°F).
Average pressure
Collinsville, TX
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.93"Hg - Average pressure in September:
29.97"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 (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed
Collinsville, TX
- Average wind speed in January:
9.5mph - Average wind speed in February:
10.1mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.3mph - Average wind speed in May:
9.2mph - Average wind speed in June:
8mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
7.1mph - Average wind speed in September:
7mph - Average wind speed in October:
8.3mph - Average wind speed in November:
8.9mph - Average wind speed in December:
8.8mph
The windiest month (with the highest average wind speed) is March (10.4mph).
The calmest month (with the lowest average wind speed) is September (7mph).
Average humidity
Collinsville, TX
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (59%).
Average rainfall
Collinsville, TX
- Average rainfall in January:
0.35" - Average rainfall in February:
0.31" - Average rainfall in March:
0.51" - Average rainfall in April:
0.51" - Average rainfall in May:
0.79" - Average rainfall in June:
0.87"
- Average rainfall in July:
0.59" - Average rainfall in August:
0.67" - Average rainfall in September:
0.63" - Average rainfall in October:
0.98" - Average rainfall in November:
0.51" - Average rainfall in December:
0.31"
The wettest month (with the highest rainfall) is October (0.98").
The driest months (with the least rainfall) are February and December (0.31").
Average rainfall days
Collinsville, TX
- Average rainfall days in January:
3 days - Average rainfall days in February:
3.8 days - Average rainfall days in March:
7.6 days - Average rainfall days in April:
7.7 days - Average rainfall days in May:
9 days - Average rainfall days in June:
7.6 days
- Average rainfall days in July:
7.8 days - Average rainfall days in August:
6.9 days - Average rainfall days in September:
8.5 days - Average rainfall days in October:
7 days - Average rainfall days in November:
4.2 days - Average rainfall days in December:
4 days
The month with the highest number of rainy days is May (9 days).
The month with the least rainy days is January (3 days).
Average snowfall
Collinsville, TX
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days
Collinsville, TX
- Average snowfall days in January:
0.1 days - Average snowfall days in February:
0.8 days - Average snowfall days in March:
0.1 days - Average snowfall days in April:
0 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:
0.2 days - Average snowfall days in December:
0.2 days
The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Collinsville, TX
- Average daylight in January:
10h and 12min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 54min - Average daylight in June:
14h and 18min
- Average daylight in July:
14h and 6min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 24min - Average daylight in December:
10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January:
6h and 0min - Average sunshine in February:
6h and 54min - Average sunshine in March:
7h and 0min - Average sunshine in April:
8h and 24min - Average sunshine in May:
8h and 54min - Average sunshine in June:
10h and 18min
- Average sunshine in July:
11h and 0min - Average sunshine in August:
11h and 12min - Average sunshine in September:
8h and 36min - Average sunshine in October:
6h and 36min - Average sunshine in November:
5h and 54min - Average sunshine in December:
5h and 42min
The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days
Collinsville, TX
- Average sunshine days in January:
27.1 days - Average sunshine days in February:
23 days - Average sunshine days in March:
22.6 days - Average sunshine days in April:
20.8 days - Average sunshine days in May:
19.4 days - Average sunshine days in June:
20 days
- Average sunshine days in July:
21.6 days - Average sunshine days in August:
21.4 days - Average sunshine days in September:
19.4 days - Average sunshine days in October:
22.4 days - Average sunshine days in November:
24.7 days - Average sunshine days in December:
26.3 days
The month with the most sunshine days is January (27.1 days).
The months with the least sunshine days are May and September (19.4 days).
Average UV index
Collinsville, TX
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover
Collinsville, TX
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility
Collinsville, TX
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).





