Monthly weather forecast and climate
Houston, DE

Weather in January

January, like December, in Houston, Delaware, is another cold winter month, with average temperature fluctuating between 40.6°F (4.8°C) and 29.7°F (-1.3°C). The coldest month is January, with an average high-temperature of 40.6°F (4.8°C) and an average low-temperature of 29.7°F (-1.3°C). Weather in January »

Weather in February

February, the last month of the winter, in Houston, is a frosty month, with average temperature fluctuating between 43.7°F (6.5°C) and 31.5°F (-0.3°C). In February, the average high-temperature is practically the same as in January - a chilly 43.7°F (6.5°C). Weather in February »

Weather in March

The first month of the spring, March, is also a frosty month in Houston, Delaware, with average temperature fluctuating between 37.9°F (3.3°C) and 49.8°F (9.9°C). In March, the average high-temperature marginally rises, from a chilly 43.7°F (6.5°C) in February, to a still frosty 49.8°F (9.9°C). Weather in March »

Weather in April

April in Houston, Delaware, is a mild spring month, with average temperature ranging between max 60.6°F (15.9°C) and min 47.7°F (8.7°C). In April, the average high-temperature rises, from a frosty 49.8°F (9.9°C) in March, to a mild 60.6°F (15.9°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Houston, Delaware, with average temperature fluctuating between 57°F (13.9°C) and 70°F (21.1°C). In May, the average high-temperature increases, from a moderate 60.6°F (15.9°C) in April, to a pleasant 70°F (21.1°C). Weather in May »

Weather in June

June, the first month of the summer, in Houston, is a moderately hot month, with average temperature varying between 78.1°F (25.6°C) and 65.5°F (18.6°C). In June, the average high-temperature slightly increases, from a pleasant 70°F (21.1°C) in May, to a moderately hot 78.1°F (25.6°C). Weather in June »

Weather in July

July, like June, in Houston, Delaware, is another warm summer month, with temperature in the range of an average low of 70.7°F (21.5°C) and an average high of 83.1°F (28.4°C). The warmest month is July, with an average high-temperature of 83.1°F (28.4°C) and an average low-temperature of 70.7°F (21.5°C). In July, the average heat index is estimated at a tropical 91.2°F (32.9°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Houston, Delaware, with temperature in the range of an average high of 81.5°F (27.5°C) and an average low of 69.3°F (20.7°C). In Houston, the average high-temperature in August is almost the same as in July - a still warm 81.5°F (27.5°C). Weather in August »

Weather in September

September, the first month of the autumn, in Houston, is still a warm month, with average temperature varying between 76.1°F (24.5°C) and 64°F (17.8°C). In Houston, the average high-temperature in September slightly decreases, from 81.5°F (27.5°C) in August, to a still warm 76.1°F (24.5°C). Weather in September »

Weather in October

October, like September, in Houston, Delaware, is another enjoyable autumn month, with average temperature varying between 54.5°F (12.5°C) and 66.2°F (19°C). In October, the average high-temperature decreases, from a warm 76.1°F (24.5°C) in September, to a comfortable 66.2°F (19°C). Weather in October »

Weather in November

November, the last month of the autumn, in Houston, is another cool month, with average temperature fluctuating between 54.5°F (12.5°C) and 43.7°F (6.5°C). In November, the average high-temperature drops, from a comfortable 66.2°F (19°C) in October, to a fresh 54.5°F (12.5°C). Weather in November »

Weather in December

December, the first month of the winter, in Houston, is still a chilly month, with temperature in the range of an average high of 46.8°F (8.2°C) and an average low of 36.3°F (2.4°C). In December, the average high-temperature marginally drops, from a fresh 54.5°F (12.5°C) in November, to a frosty 46.8°F (8.2°C). Weather in December »
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FAQ

What is the coldest month in Houston?

With an average high-temperature of 40.6°F (4.8°C) and an average low-temperature of 29.7°F (-1.3°C), January is the coldest month in Houston, Delaware.

What is the least humid month in Houston?

Months with the lowest humidity in Houston are January and November, with an average relative humidity of 74%.

How much does it rain in Houston?

Throughout the year, there are 152.4 rainfall days, and 25.94" (659mm) of precipitation is accumulated.

What is the driest month in Houston?

January is the month with the least rainfall. Rain falls for 8.4 days and accumulates 1.5" (38mm) of precipitation.

When does it snow in Houston?

Months with snowfall in Houston, Delaware, are January through March, May, November and December.

How much does it snow in Houston?

In Houston, Delaware, during the entire year, snow falls for 10.4 days, and aggregates up to 4.29" (109mm) of snow.

What is the snowiest month in Houston?

The month with the most snowfall is January when snow falls for 3.3 days and typically aggregates up to 1.22" (31mm) of snow.

What are the months with the lowest UV index in Houston?

January and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the month with the least sunshine in Houston?

With an average of 5h of sunshine, February has the least sunshine of the year.

When it does not snow in Houston?

In Houston, Delaware, snow does not fall in April, June through October.

What is the most humid month in Houston?

May is the most humid month in Houston, with an average relative humidity of 80%.

What are the months with the highest UV index in Houston?

Months with the highest UV index are May through August, with an average maximum UV index of 6.

When are the longest days in Houston?

June has the longest days of the year in Houston, with an average of 14.9h of daylight.

What is the warmest month in Houston?

July is the warmest month in Houston, Delaware, with an average high-temperature of 83.1°F (28.4°C) and an average low-temperature of 70.7°F (21.5°C).

What month has the most sunshine in Houston?

The month with the most sunshine in Houston is July, with an average of 10.8h of sunshine.

What is the rainiest month in Houston?

The month with the most rainfall in Houston, Delaware, is August when the rain falls for 16 days and typically aggregates up to 3.07" (78mm) of precipitation.

What is the month with the shortest days in Houston?

With an average of 9.5h of daylight, December has the shortest days of the year.

Average temperature
Houston, DE

Average temperature - Houston, DE

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (40.6°F).

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

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Average pressure
Houston, DE

Average pressure - Houston, DE

The month with the highest atmospheric pressure is November (30.12").
The month with the lowest atmospheric pressure is June (29.94").

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Average wind speed
Houston, DE

Average wind speed - Houston, DE

The windiest month (with the highest average wind speed) is February (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

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Average humidity
Houston, DE

Average humidity - Houston, DE

The month with the highest relative humidity is May (80%).
Months with the lowest relative humidity are January and November (74%).

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Average rainfall
Houston, DE

Average rainfall - Houston, DE

The wettest month (with the highest rainfall) is August (3.07").
The driest month (with the least rainfall) is January (1.5").

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Average rainfall days
Houston, DE

Average rainfall days - Houston, DE

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.4 days).

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Average snowfall
Houston, DE

Average snowfall - Houston, DE

The month with the highest snowfall is January (1.22").
Months with the least snowfall are April, June, July, August, September and October (0").

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Average snowfall days
Houston, DE

Average snowfall days - Houston, DE

The month with the highest number of snowfall days is January (3.3 days).
Months with the least snowfall days are April, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Houston, DE

Average daylight / Average sunshine - Houston, DE

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is February (Average sunshine: 5h).

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Average sunshine days
Houston, DE

Average sunshine days - Houston, DE

The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is July (11.6 days).

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Average visibility
Houston, DE

Average visibility - Houston, DE

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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