Climate and monthly weather forecast
Dennis, TX

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Weather in January

January, like December, in Dennis, Texas, is a cool winter month, with temperature in the range of an average low of 37.9°F (3.3°C) and an average high of 55°F (12.8°C). January, marked by an average high-temperature of 55°F (12.8°C) and a low-temperature of 37.9°F (3.3°C), is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Dennis, is a mild month, with temperature in the range of an average low of 41.5°F (5.3°C) and an average high of 58.6°F (14.8°C). In February, Dennis experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 55°F (12.8°C) in January to a mild 58.6°F (14.8°C). Weather in February »

Weather in March

The first month of the spring, March, is an agreeable month in Dennis, Texas, with an average temperature varying between 49.6°F (9.8°C) and 68.2°F (20.1°C). With the onset of March, Dennis's weather sees a temperature rise, transitioning from a moderate 58.6°F (14.8°C) in February to a pleasant 68.2°F (20.1°C). Weather in March »

Weather in April

April in Dennis, Texas, is a moderately hot spring month, with temperature in the range of an average high of 75.4°F (24.1°C) and an average low of 55.2°F (12.9°C). Dennis's transition into April sees a mild rise in the average high-temperature, edging from a pleasant 68.2°F (20.1°C) in March to a warm 75.4°F (24.1°C). Weather in April »

Weather in May

May, the last month of the spring in Dennis, is another warm month, with an average temperature ranging between max 81.5°F (27.5°C) and min 63.5°F (17.5°C). The arrival of May introduces a minor uplift in high-temperatures, adjusting from a warm 75.4°F (24.1°C) in April to a still moderately hot 81.5°F (27.5°C). Weather in May »

Weather in June

The first month of the summer, June, is a hot month in Dennis, Texas, with an average temperature varying between 90.7°F (32.6°C) and 72°F (22.2°C). As June arrives, a rise in the average high-temperature is observed, moving from a warm 81.5°F (27.5°C) in May to a tropical 90.7°F (32.6°C). Weather in June »

Weather in July

July, the same as June, in Dennis, Texas, is a hot summer month, with temperature in the range of an average low of 74.7°F (23.7°C) and an average high of 94.6°F (34.8°C). July's advent notes a subtle adjustment in average high-temperature to a still hot 94.6°F (34.8°C) from June. Weather in July »

Weather in August

The last month of the summer, August, is a very hot month in Dennis, Texas, with an average temperature ranging between min 74.8°F (23.8°C) and max 95.2°F (35.1°C). The warmest time of the year is August, with temperatures averaging a high of 95.2°F (35.1°C) and a low of 74.8°F (23.8°C). August's heat index is calculated to be a scorching 109.4°F (43°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a hot month in Dennis, Texas, with an average temperature varying between 86.9°F (30.5°C) and 68.4°F (20.2°C). September witnesses a gentle descent in average high-temperature, descending from August's torrid 95.2°F (35.1°C) to a tropical 86.9°F (30.5°C). Weather in September »

Weather in October

October, like September, in Dennis, Texas, is a moderately hot autumn month, with an average temperature varying between 75.2°F (24°C) and 57.2°F (14°C). With the onset of October, Dennis's average high-temperature adjusts, receding from September's tropical 86.9°F (30.5°C) to a warm 75.2°F (24°C). Weather in October »

Weather in November

November, the last month of the autumn in Dennis, is also an enjoyable month, with an average temperature fluctuating between 47.3°F (8.5°C) and 64.4°F (18°C). November indicates a shift in the average high-temperature, from October's warm 75.2°F (24°C) to a refreshing 64.4°F (18°C). Weather in November »

Weather in December

December, the first month of the winter in Dennis, is also a fresh month, with temperature in the range of an average low of 39.9°F (4.4°C) and an average high of 55.2°F (12.9°C). Onset of December comes with a temperature decline, the average high falling from a comfortable 64.4°F (18°C) in November to a cool 55.2°F (12.9°C). Weather in December »

Frequently asked questions

What time of the year is the coldest?

The lowest temperatures are recorded in January, with averages reaching a high of 55°F (12.8°C) and a low of 37.9°F (3.3°C).

What is the driest month in Dennis?

January is the month with the least rainfall. Rain falls for 5.7 days and accumulates 1.3" (33mm) of precipitation.

How many days does it rain?

In Dennis, Texas, during the entire year, the rain falls for 127.7 days and collects up to 26.46" (672mm) of precipitation.

When does it snow in Dennis?

January through March, November and December are months with snowfall in Dennis.

How many days does it snow?

Throughout the year, there are 3.1 snowfall days, and 1.77" (45mm) of snow is accumulated.

When is the lowest UV index?

The months with the lowest UV index are January and December, with an average maximum UV index of 3.

What is the snowiest month?

February is the month with the most snowfall. Snow falls for 1.3 days and accumulates 1.06" (27mm) of snow.

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 CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

When it does not snow?

April through October are months without snowfall in Dennis.

What is the most humid month?

May is the most humid month, with an average relative humidity of 72%.

When are the longest days?

June has the longest days of the year in Dennis, with an average of 14h and 18min of daylight.

What is the month with the highest UV index?

June through August, with an average maximum UV index of 7, are months with the highest UV index.

What month has the most sunshine?

July has the most sunshine of the year, with an average of 11.2h of sunshine.

What month is the hottest?

August temperatures tend to peak at an average high of 95.2°F (35.1°C) and dip to a low of 74.8°F (23.8°C).

What is the least humid month?

August is the least humid month, with an average relative humidity of 55%.

What is the rainiest month?

October is the month with the most rainfall. Rain falls for 10.8 days and accumulates 3.58" (91mm) of precipitation.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 10h and 0min of daylight.

What is the month with the least sunshine in Dennis?

The month with the least sunshine is December, with an average of 5.9h of sunshine.

Average temperature
Dennis, TX

Average temperature - Dennis, TX

The warmest month (with the highest average high temperature) is August (95.2°F).
The month with the lowest average high temperature is January (55°F).

The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).

Average pressure
Dennis, TX

Average pressure - Dennis, TX

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed
Dennis, TX

Average wind speed - Dennis, TX

The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is September (7mph).

Average rainfall
Dennis, TX

Average rainfall - Dennis, TX

The wettest month (with the highest rainfall) is October (3.58").
The driest month (with the least rainfall) is January (1.3").

Average rainfall days
Dennis, TX

Average rainfall days - Dennis, TX

The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is January (5.7 days).

Average snowfall
Dennis, TX

Average snowfall - Dennis, TX

The month with the highest snowfall is February (1.06").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days
Dennis, TX

Average snowfall days - Dennis, TX

The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
Dennis, TX

Average daylight / Average sunshine - Dennis, TX

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).

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

Average sunshine days
Dennis, TX

Average sunshine days - Dennis, TX

The month with the most sunshine days is January (23.9 days).
The month with the least sunshine days is September (14.5 days).

Average UV index
Dennis, TX

Average UV index - Dennis, 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 and December (UV index 3).

Average visibility
Dennis, TX

Average visibility - Dennis, 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).

Dennis, Texas, USA

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