Climate and monthly weather forecast
South Alamo, TX

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Weather in January

January, like December, is another pleasant winter month in South Alamo, Texas, with an average temperature fluctuating between 53.4°F (11.9°C) and 69.6°F (20.9°C). In South Alamo, January is the month with the lowest recorded average temperatures, measuring a high of 69.6°F (20.9°C) and a low of 53.4°F (11.9°C). Weather in January »

Weather in February

February, the last month of the winter in South Alamo, is a moderately hot month, with an average temperature ranging between max 75.4°F (24.1°C) and min 57.9°F (14.4°C). South Alamo's weather in February presents a minor rise in the average high-temperature, moving from an agreeable 69.6°F (20.9°C) in January to a moderately hot 75.4°F (24.1°C). Weather in February »

Weather in March

March, the first month of the spring in South Alamo, is also a moderately hot month, with an average temperature fluctuating between 63.1°F (17.3°C) and 82°F (27.8°C). Observing a minor shift, the average high-temperature during March adjusts from February's 75.4°F (24.1°C) to a still moderately hot 82°F (27.8°C). Weather in March »

Weather in April

April is a hot spring month in South Alamo, Texas, with an average temperature fluctuating between 88.3°F (31.3°C) and 68.4°F (20.2°C). April showcases a minor temperature ascent, adjusting from March's moderately hot 82°F (27.8°C) to a hot 88.3°F (31.3°C). Weather in April »

Weather in May

The last month of the spring, May, is also a hot month in South Alamo, Texas, with an average temperature varying between 91.8°F (33.2°C) and 72.9°F (22.7°C). South Alamo's average high-temperature in May is a still hot 91.8°F (33.2°C), indicating a subtle variation from April. Weather in May »

Weather in June

The first month of the summer, June, is a very hot month in South Alamo, Texas, with an average temperature varying between 76.6°F (24.8°C) and 95.5°F (35.3°C). The shift into June uncovers an average high-temperature of a torrid 95.5°F (35.3°C), subtly different from the previous month. Weather in June »

Weather in July

July, the same as June, is another sweltering summer month in South Alamo, Texas, with an average temperature ranging between min 77.5°F (25.3°C) and max 97.3°F (36.3°C). July records an average high-temperature of a still sweltering 97.3°F (36.3°C), indicating a minor variation from the preceding month. Weather in July »

Weather in August

The last month of the summer, August, is another torrid month in South Alamo, Texas, with temperature in the range of an average high of 98.2°F (36.8°C) and an average low of 79.7°F (26.5°C). August, with its high-temperature average of 98.2°F (36.8°C) and a low-temperature average of 79.7°F (26.5°C), is the warmest month. The heat index value during August is calculated 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 South Alamo, Texas, with temperature in the range of an average low of 77.2°F (25.1°C) and an average high of 92.5°F (33.6°C). With the arrival of September, South Alamo experiences a modest decline in average high-temperatures, transitioning from a fiery hot 98.2°F (36.8°C) in August to a hot 92.5°F (33.6°C). Weather in September »

Weather in October

October, like September, is a hot autumn month in South Alamo, Texas, with temperature in the range of an average low of 70.7°F (21.5°C) and an average high of 87.3°F (30.7°C). South Alamo experiences a recorded average high-temperature of a still hot 87.3°F (30.7°C) in October, closely aligned with September's 92.5°F (33.6°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a moderately hot month in South Alamo, Texas, with temperature in the range of an average low of 61.9°F (16.6°C) and an average high of 77.7°F (25.4°C). South Alamo in November undergoes a mild reduction in the average high-temperature, shifting from October's hot 87.3°F (30.7°C) to a warm 77.7°F (25.4°C). Weather in November »

Weather in December

The first month of the winter, December, is still a pleasant month in South Alamo, Texas, with an average temperature varying between 56.1°F (13.4°C) and 71.4°F (21.9°C). The onset of December brings a small shift in high-temperatures, falling from a warm 77.7°F (25.4°C) in November to a pleasant 71.4°F (21.9°C). Weather in December »
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

With average high temperatures of 69.6°F (20.9°C) and lows of 53.4°F (11.9°C), January is the coldest month.

What is the driest month?

January and February are months with the least rain in South Alamo when the rain falls for 6.3 days and typically aggregates up to 0.31" (8mm) of rain.

How much does it rain?

Throughout the year, there are 94.1 rainfall days, and 9.06" (230mm) of precipitation is accumulated.

When does it snow?

January is the only month when snow falls.

What is the snowiest month?

The month with the most snowfall is January, when snow falls for 0.1 days and typically aggregates up to 0.12" (3mm) of snow.

How many days does it snow?

Throughout the year, there are 0.1 snowfall days, and 0.12" (3mm) of snow is accumulated.

When it does not snow?

February through December are months without snowfall.

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.

What is the most humid month?

May is the most humid month, with an average relative humidity of 69%.

When are the longest days?

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

What month has the most sunshine?

July has the most sunshine of the year, with an average of 11.4h of sunshine.

When is the highest UV index?

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

What part of the year is the hottest?

In South Alamo, the peak temperatures are generally noted in August, averaging a high of 98.2°F (36.8°C) and a low of 79.7°F (26.5°C).

What is the least humid month?

August is the least humid month, with an average relative humidity of 59%.

What is the rainiest month?

September is the month with the most rainfall. Rain falls for 15.1 days and accumulates 1.46" (37mm) of precipitation.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 10h and 30min of daylight.

What is the month with the least sunshine in South Alamo?

The month with the least sunshine in South Alamo is December, with an average of 5.5h of sunshine.

When is the lowest UV index?

December is the month with the lowest UV index, with an average maximum UV index of 4.

Average temperature
South Alamo, TX

Average temperature - South Alamo, TX

The warmest month (with the highest average high temperature) is August (98.2°F).
The month with the lowest average high temperature is January (69.6°F).

The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is January (53.4°F).

Average pressure
South Alamo, TX

Average pressure - South Alamo, 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).

Average wind speed
South Alamo, TX

Average wind speed - South Alamo, TX

The windiest month (with the highest average wind speed) is May (12.4mph).
The calmest month (with the lowest average wind speed) is September (8.9mph).

Average humidity
South Alamo, TX

Average humidity - South Alamo, TX

The month with the highest relative humidity is May (69%).
The month with the lowest relative humidity is August (59%).

Average rainfall
South Alamo, TX

Average rainfall - South Alamo, TX

The wettest month (with the highest rainfall) is September (1.46").
The driest months (with the least rainfall) are January and February (0.31").

Average rainfall days
South Alamo, TX

Average rainfall days - South Alamo, TX

The month with the highest number of rainy days is September (15.1 days).
The month with the least rainy days is February (5.4 days).

Average snowfall
South Alamo, TX

Average snowfall - South Alamo, TX

The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days
South Alamo, TX

Average snowfall days - South Alamo, TX

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

Average daylight / Average sunshine
South Alamo, TX

Average daylight / Average sunshine - South Alamo, 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 month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days
South Alamo, TX

Average sunshine days - South Alamo, TX

The month with the most sunshine days is July (23 days).
The month with the least sunshine days is September (12.5 days).

Average visibility
South Alamo, TX

Average visibility - South Alamo, 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).

South Alamo, Texas, USA

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