Climate and monthly weather forecast
Rio Grande City, TX

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Weather in January

January, like December, is an agreeable winter month in Rio Grande City, Texas, with an average temperature fluctuating between 52.7°F (11.5°C) and 69.8°F (21°C). Rio Grande City's coldest month, January, generally records average temperatures ranging from a high of 69.8°F (21°C) to a low of 52.7°F (11.5°C). Weather in January »

Weather in February

February, the last month of the winter in Rio Grande City, is a warm month, with temperature in the range of an average high of 75.7°F (24.3°C) and an average low of 57°F (13.9°C). The shift into February is characterized by a subtle rise in the average high-temperature, transitioning from January's agreeable 69.8°F (21°C) to a warm 75.7°F (24.3°C). Weather in February »

Weather in March

The first month of the spring, March, is also a moderately hot month in Rio Grande City, Texas, with an average temperature varying between 83.3°F (28.5°C) and 62.4°F (16.9°C). Rio Grande City's transition into March is marked by a minor temperature shift, moving from 75.7°F (24.3°C) in February to a still warm 83.3°F (28.5°C). Weather in March »

Weather in April

April in Rio Grande City, Texas, is a hot spring month, with an average temperature varying between 90.1°F (32.3°C) and 68.4°F (20.2°C). April's onset is marked by a subtle temperature increase, moving from a warm 83.3°F (28.5°C) in March to a tropical 90.1°F (32.3°C). Weather in April »

Weather in May

May, the last month of the spring in Rio Grande City, is another tropical month, with an average temperature ranging between min 73°F (22.8°C) and max 93.9°F (34.4°C). The advent of May observes an average high-temperature of a still tropical 93.9°F (34.4°C), nearly identical to April's 90.1°F (32.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a sweltering month in Rio Grande City, Texas, with an average temperature fluctuating between 76.8°F (24.9°C) and 97.7°F (36.5°C). Rio Grande City's shift from May to June is accompanied by an average high-temperature of a torrid 97.7°F (36.5°C), a slight deviation from 93.9°F (34.4°C). Weather in June »

Weather in July

July, the same as June, is another torrid summer month in Rio Grande City, Texas, with temperature in the range of an average low of 78.4°F (25.8°C) and an average high of 99.3°F (37.4°C). The start of July marks an average high-temperature of a still sweltering 99.3°F (37.4°C), hardly distinguishable from the conditions in June. Weather in July »

Weather in August

August, the last month of the summer in Rio Grande City, is another very hot month, with an average temperature ranging between max 100°F (37.8°C) and min 80.1°F (26.7°C). August is the warmest month, with the temperature often reaching an average high of 100°F (37.8°C) and an average low of 80.1°F (26.7°C). Throughout August, the heat index is computed to be a blazing hot 122°F (50°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a hot month in Rio Grande City, Texas, with an average temperature varying between 93°F (33.9°C) and 77°F (25°C). The arrival of September is marked by a minor reduction in average high-temperature, sliding from a fiery hot 100°F (37.8°C) in August to a tropical 93°F (33.9°C). Weather in September »

Weather in October

October, like September, is another tropical autumn month in Rio Grande City, Texas, with an average temperature fluctuating between 87.6°F (30.9°C) and 70°F (21.1°C). The beginning of October subtly marks a decrease in the average high-temperature, transitioning from a hot 93°F (33.9°C) in September to a still tropical 87.6°F (30.9°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a moderately hot month in Rio Grande City, Texas, with temperature in the range of an average low of 61°F (16.1°C) and an average high of 77.5°F (25.3°C). November comes with a decrease in the average high-temperature, falling from a tropical 87.6°F (30.9°C) in October to a warm 77.5°F (25.3°C). Weather in November »

Weather in December

December, the first month of the winter in Rio Grande City, is still a pleasant month, with an average temperature fluctuating between 54.5°F (12.5°C) and 70.9°F (21.6°C). December's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a moderately hot 77.5°F (25.3°C) in November to an agreeable 70.9°F (21.6°C). Weather in December »
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Frequently asked questions

What part of the year is the coldest in Rio Grande City?

January, with its average high-temperature of 69.8°F (21°C) and an average low-temperature of 52.7°F (11.5°C), holds the record as the coldest month.

How many days does it rain in Rio Grande City?

Throughout the year, there are 98.5 rainfall days, and 13.11" (333mm) of precipitation is accumulated.

When does it snow in Rio Grande City?

Months with snowfall are January and February.

When does it snow the most in Rio Grande City?

The months with the most snowfall days are January and February, with an average of 0.1 snowfall days.

How many days does it snow in Rio Grande City?

In Rio Grande City, Texas, during the entire year, snow falls for 0.2 days.

What is the driest month in Rio Grande City?

The month with the least rainfall in Rio Grande City is February, when the rain falls for 5.8 days and typically collects 0.47" (12mm) of precipitation.

When it does not snow in Rio Grande City?

March through December are months without snowfall.

When is Daylight Saving Time (DST) in Rio Grande City?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Rio Grande City, Texas, 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 are the longest days in Rio Grande City?

The month with the longest days is June, with an average of 13h and 48min of daylight.

What is the month with the most sunshine in Rio Grande City?

The months with the most sunshine in Rio Grande City are June and July, with an average of 11.3h of sunshine.

When is the highest UV index in Rio Grande City?

July and August, with an average maximum UV index of 8, are months with the highest UV index in Rio Grande City.

What time of the year is the hottest in Rio Grande City?

With average high temperatures of 100°F (37.8°C) and lows of 80.1°F (26.7°C), August is the warmest month.

What is the least humid month in Rio Grande City?

With an average relative humidity of 53%, August is the least humid month in Rio Grande City.

What is the rainiest month in Rio Grande City?

The month with the most rainfall is September, when the rain falls for 15.3 days and typically aggregates up to 2.56" (65mm) of precipitation.

What is the most humid month in Rio Grande City?

With an average relative humidity of 65%, December is the most humid month in Rio Grande City, Texas.

What is the month with the shortest days in Rio Grande City?

The month with the shortest days is December, with an average of 10h and 30min of daylight.

What is the month with the least sunshine in Rio Grande City?

With an average of 5.8h of sunshine, December has the least sunshine of the year.

What is the month with the lowest UV index in Rio Grande City?

The month with the lowest UV index in Rio Grande City, Texas, is December, with an average maximum UV index of 4.

Average temperature
Rio Grande City, TX

Average temperature - Rio Grande City, TX

The warmest month (with the highest average high temperature) is August (100°F).
The month with the lowest average high temperature is January (69.8°F).

The month with the highest average low temperature is August (80.1°F).
The coldest month (with the lowest average low temperature) is January (52.7°F).

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Average pressure
Rio Grande City, TX

Average pressure - Rio Grande City, TX

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are May and June (29.87"Hg).

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Average wind speed
Rio Grande City, TX

Average wind speed - Rio Grande City, TX

The windiest month (with the highest average wind speed) is July (13.9mph).
The calmest month (with the lowest average wind speed) is December (9.2mph).

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Average humidity
Rio Grande City, TX

Average humidity - Rio Grande City, TX

The month with the highest relative humidity is December (65%).
The month with the lowest relative humidity is August (53%).

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Average rainfall
Rio Grande City, TX

Average rainfall - Rio Grande City, TX

The wettest month (with the highest rainfall) is September (2.56").
The driest month (with the least rainfall) is February (0.47").

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Average rainfall days
Rio Grande City, TX

Average rainfall days - Rio Grande City, TX

The month with the highest number of rainy days is September (15.3 days).
The month with the least rainy days is February (5.8 days).

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Average snowfall days
Rio Grande City, TX

Average snowfall days - Rio Grande City, TX

The months with the highest number of snowfall days are January and February (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight / Average sunshine
Rio Grande City, TX

Average daylight / Average sunshine - Rio Grande City, TX

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

The months with the most sunshine are June and July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

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Average sunshine days
Rio Grande City, TX

Average sunshine days - Rio Grande City, TX

The months with the most sunshine days are July and August (22.6 days).
The month with the least sunshine days is September (12.9 days).

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Average visibility
Rio Grande City, TX

Average visibility - Rio Grande City, 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).

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Rio Grande City, Texas, USA

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