Climate and monthly weather forecastDenison, TX
Climate and monthly weather forecast
Weather in January
January, like December, in Denison, Texas, is another fresh winter month, with an average temperature ranging between min 36.3°F (2.4°C) and max 51.8°F (11°C). January stands out as Denison's coldest month, with an average high-temperature of 51.8°F (11°C) and a low-temperature of 36.3°F (2.4°C). Weather in January »Weather in February
The last month of the winter, February, is a mild month in Denison, Texas, with an average temperature fluctuating between 39.6°F (4.2°C) and 55.6°F (13.1°C). The arrival of February marks a slight shift to an average high-temperature of a refreshing 55.6°F (13.1°C) from January's 51.8°F (11°C). Weather in February »Weather in March
March, the first month of the spring in Denison, is an enjoyable month, with an average temperature ranging between min 47.7°F (8.7°C) and max 64.4°F (18°C). The arrival of March brings a soft temperature shift, with the average high-temperature nudging from a moderate 55.6°F (13.1°C) in February to an enjoyable 64.4°F (18°C). Weather in March »Weather in April
April is a pleasant spring month in Denison, Texas, with an average temperature varying between 72.1°F (22.3°C) and 53.6°F (12°C). Denison's weather in April presents a minor rise in the average high-temperature, moving from a comfortable 64.4°F (18°C) in March to an agreeable 72.1°F (22.3°C). Weather in April »Weather in May
May, the last month of the spring in Denison, is a warm month, with an average temperature ranging between max 79°F (26.1°C) and min 61.9°F (16.6°C). The arrival of May introduces a minor uplift in high-temperatures, adjusting from an agreeable 72.1°F (22.3°C) in April to a warm 79°F (26.1°C). Weather in May »Weather in June
June, the first month of the summer in Denison, is a tropical month, with an average temperature ranging between min 71.2°F (21.8°C) and max 88.7°F (31.5°C). In June, the average high-temperature increases from a warm 79°F (26.1°C) in May to a hot 88.7°F (31.5°C). Weather in June »Weather in July
July, like June, is a hot summer month in Denison, Texas, with an average temperature fluctuating between 74.1°F (23.4°C) and 92.8°F (33.8°C). The advent of July presents an average high-temperature of a still tropical 92.8°F (33.8°C), maintaining a close correlation with the preceding month. Weather in July »Weather in August
August, the last month of the summer in Denison, is another tropical month, with an average temperature fluctuating between 73.6°F (23.1°C) and 93.9°F (34.4°C). In Denison, the highest average temperatures are observed in August, with a high of 93.9°F (34.4°C) and a low of 73.6°F (23.1°C). In August, the average heat index is evaluated at a blisteringly hot 109.4°F (43°C). Weather in August »Weather in September
The first month of the autumn, September, is still a tropical month in Denison, Texas, with an average temperature ranging between max 86°F (30°C) and min 67.3°F (19.6°C). September indicates a minor shift in the average high-temperature, from August's 93.9°F (34.4°C) to a still hot 86°F (30°C). Weather in September »Weather in October
October, like September, in Denison, Texas, is a moderately hot autumn month, with temperature in the range of an average high of 73.9°F (23.3°C) and an average low of 56.1°F (13.4°C). With October's onset, the average high-temperature recedes from September's hot 86°F (30°C) to a warm 73.9°F (23.3°C). Weather in October »Weather in November
November, the last month of the autumn in Denison, is another comfortable month, with an average temperature varying between 62.1°F (16.7°C) and 46°F (7.8°C). In Denison, the average high-temperature in November drops from a moderately hot 73.9°F (23.3°C) in October to a refreshing 62.1°F (16.7°C). Weather in November »Weather in December
The first month of the winter, December, is still a cool month in Denison, Texas, with an average temperature ranging between min 38.8°F (3.8°C) and max 52.7°F (11.5°C). In Denison, the average high-temperature in December decreases from a comfortable 62.1°F (16.7°C) in November to a cool 52.7°F (11.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Denison, TX
The warmest month (with the highest average high temperature) is August (93.9°F).
The month with the lowest average high temperature is January (51.8°F).
The month with the highest average low temperature is July (74.1°F).
The coldest month (with the lowest average low temperature) is January (36.3°F).
Average pressure
Denison, 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:
29.92"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
Denison, TX
- Average wind speed in January:
9.5mph - Average wind speed in February:
10.1mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.1mph - Average wind speed in May:
9mph - Average wind speed in June:
7.8mph
The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest months (with the lowest average wind speed) are July, August and September (7mph).
Average humidity
Denison, TX
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (60%).
Average rainfall
Denison, TX
- Average rainfall in January:
1.77" - Average rainfall in February:
1.97" - Average rainfall in March:
2.72" - Average rainfall in April:
2.72" - Average rainfall in May:
4.13" - Average rainfall in June:
2.83"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is January (1.77").
Average rainfall days
Denison, TX
- Average rainfall days in January:
7.2 days - Average rainfall days in February:
9.8 days - Average rainfall days in March:
13.6 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
12.7 days
- Average rainfall days in July:
12.3 days - Average rainfall days in August:
11.6 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
11.7 days - Average rainfall days in November:
9 days - Average rainfall days in December:
9 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (7.2 days).
Average snowfall
Denison, TX
The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Denison, TX
- Average snowfall days in January:
0.8 days - Average snowfall days in February:
1.6 days - Average snowfall days in March:
0.5 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:
0.4 days - Average snowfall days in December:
0.5 days
The month with the highest number of snowfall days is February (1.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Denison, 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 24min
- 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 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January:
5h and 54min - Average sunshine in February:
6h and 36min - Average sunshine in March:
6h and 54min - Average sunshine in April:
8h and 12min - Average sunshine in May:
8h and 36min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
10h and 48min - Average sunshine in August:
11h and 12min - Average sunshine in September:
8h and 30min - Average sunshine in October:
6h and 24min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 30min
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 30min).
Average sunshine days
Denison, TX
- Average sunshine days in January:
22.1 days - Average sunshine days in February:
16.3 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
14.2 days - Average sunshine days in May:
14 days - Average sunshine days in June:
15.3 days
- Average sunshine days in July:
16.6 days - Average sunshine days in August:
17 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
17.8 days - Average sunshine days in November:
19.4 days - Average sunshine days in December:
20.3 days
The month with the most sunshine days is January (22.1 days).
The month with the least sunshine days is May (14 days).
Average UV index
Denison, TX
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover
Denison, TX
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility
Denison, 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).





