Climate and monthly weather forecastSouth Mountain, TX
Climate and monthly weather forecast
Weather in January
January, the same as December, in South Mountain, Texas, is another refreshing winter month, with an average temperature fluctuating between 57°F (13.9°C) and 40.6°F (4.8°C). January, known for its average high temperature of 57°F (13.9°C) and an average low temperature of 40.6°F (4.8°C), is the coldest month. Weather in January »Weather in February
The last month of the winter, February, is also a moderate month in South Mountain, Texas, with an average temperature fluctuating between 60.4°F (15.8°C) and 44.1°F (6.7°C). February brings an average high-temperature of a still refreshing 60.4°F (15.8°C), nearly identical to the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a pleasant month in South Mountain, Texas, with an average temperature varying between 69.3°F (20.7°C) and 50.9°F (10.5°C). The arrival of March introduces a minor uplift in high-temperatures, adjusting from a mild 60.4°F (15.8°C) in February to an agreeable 69.3°F (20.7°C). Weather in March »Weather in April
April is a warm spring month in South Mountain, Texas, with an average temperature varying between 56.3°F (13.5°C) and 76.3°F (24.6°C). April's arrival brings a slight change in high-temperatures, adjusting from an agreeable 69.3°F (20.7°C) in March to a moderately hot 76.3°F (24.6°C). Weather in April »Weather in May
May, the last month of the spring in South Mountain, is also a moderately hot month, with an average temperature varying between 82.6°F (28.1°C) and 64.6°F (18.1°C). South Mountain in May experiences a slight uptick in the average high-temperature, adjusting from April's moderately hot 76.3°F (24.6°C) to a still warm 82.6°F (28.1°C). Weather in May »Weather in June
June, the first month of the summer in South Mountain, is a hot month, with an average temperature fluctuating between 71.8°F (22.1°C) and 90.5°F (32.5°C). June signals a minor shift in the average high-temperature, moving from May's moderately hot 82.6°F (28.1°C) to a tropical 90.5°F (32.5°C). Weather in June »Weather in July
July, like June, is another tropical summer month in South Mountain, Texas, with an average temperature fluctuating between 74.3°F (23.5°C) and 94.6°F (34.8°C). The advent of July brings an average high-temperature of a still tropical 94.6°F (34.8°C), exhibiting minor difference from the previous month. Weather in July »Weather in August
The last month of the summer, August, is a fiery hot month in South Mountain, Texas, with temperature in the range of an average low of 75.7°F (24.3°C) and an average high of 95.5°F (35.3°C). In South Mountain, August is the month with the highest recorded average temperatures, measuring a high of 95.5°F (35.3°C) and a low of 75.7°F (24.3°C). The average heat index in August is evaluated at a scorching 111.2°F (44°C). Weather in August »Weather in September
September, the first month of the autumn in South Mountain, is still a hot month, with an average temperature fluctuating between 87.6°F (30.9°C) and 70.7°F (21.5°C). A modest decline in the average high-temperature is seen during September, decreasing from a sweltering 95.5°F (35.3°C) in August to a tropical 87.6°F (30.9°C). Weather in September »Weather in October
October, like September, in South Mountain, Texas, is a moderately hot autumn month, with an average temperature varying between 59.2°F (15.1°C) and 76.6°F (24.8°C). The onset of October introduces a moderate change in South Mountain's weather, with average high-temperatures falling from September's hot 87.6°F (30.9°C) to a warm 76.6°F (24.8°C). Weather in October »Weather in November
November, the last month of the autumn in South Mountain, is another refreshing month, with an average temperature ranging between max 65.8°F (18.8°C) and min 49.3°F (9.6°C). The transition into November indicates a reduction in the average high-temperature, down to an enjoyable 65.8°F (18.8°C) from October's moderately hot 76.6°F (24.8°C). Weather in November »Weather in December
December, the first month of the winter in South Mountain, is also a moderate month, with temperature in the range of an average high of 57.7°F (14.3°C) and an average low of 42.4°F (5.8°C). South Mountain, Texas, in December undergoes a slight reduction in the average high-temperature, shifting from November's refreshing 65.8°F (18.8°C) to a moderate 57.7°F (14.3°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
South Mountain, TX
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (57°F).
The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (40.6°F).
Average pressure
South Mountain, 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:
29.93"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.93"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
South Mountain, TX
- Average wind speed in January:
9.7mph - Average wind speed in February:
10.4mph - Average wind speed in March:
11mph - Average wind speed in April:
10.9mph - Average wind speed in May:
9.9mph - Average wind speed in June:
9mph
- Average wind speed in July:
8.5mph - Average wind speed in August:
7.8mph - Average wind speed in September:
7.3mph - Average wind speed in October:
8.6mph - Average wind speed in November:
9.3mph - Average wind speed in December:
9.3mph
The windiest month (with the highest average wind speed) is March (11mph).
The calmest month (with the lowest average wind speed) is September (7.3mph).
Average humidity
South Mountain, TX
The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (56%).
Average rainfall
South Mountain, TX
- Average rainfall in January:
1.69" - Average rainfall in February:
1.3" - Average rainfall in March:
1.97" - Average rainfall in April:
2.48" - Average rainfall in May:
3.23" - Average rainfall in June:
2.44"
- Average rainfall in July:
1.69" - Average rainfall in August:
1.85" - Average rainfall in September:
2.4" - Average rainfall in October:
3.86" - Average rainfall in November:
1.18" - Average rainfall in December:
1.61"
The wettest month (with the highest rainfall) is October (3.86").
The driest month (with the least rainfall) is November (1.18").
Average rainfall days
South Mountain, TX
- Average rainfall days in January:
6.9 days - Average rainfall days in February:
8.9 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
12.9 days - Average rainfall days in May:
14.8 days - Average rainfall days in June:
10.8 days
- Average rainfall days in July:
9.6 days - Average rainfall days in August:
10.3 days - Average rainfall days in September:
13.8 days - Average rainfall days in October:
10.7 days - Average rainfall days in November:
8.5 days - Average rainfall days in December:
9.1 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (6.9 days).
Average snowfall
South Mountain, TX
The month with the highest snowfall is February (0.35").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days
South Mountain, TX
- Average snowfall days in January:
0.3 days - Average snowfall days in February:
1.2 days - Average snowfall days in March:
0.1 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:
0.1 days - Average snowfall days in December:
0.4 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
South Mountain, TX
- Average daylight in January:
10h and 24min - Average daylight in February:
11h and 6min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 48min - Average daylight in June:
14h and 12min
- Average daylight in July:
14h and 0min - Average daylight in August:
13h and 18min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 24min - Average daylight in November:
10h and 36min - Average daylight in December:
10h and 6min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in January:
6h and 12min - Average sunshine in February:
7h and 6min - Average sunshine in March:
7h and 0min - Average sunshine in April:
8h and 6min - Average sunshine in May:
8h and 36min - Average sunshine in June:
10h and 6min
- Average sunshine in July:
10h and 54min - Average sunshine in August:
10h and 30min - Average sunshine in September:
8h and 30min - Average sunshine in October:
6h and 54min - Average sunshine in November:
5h and 42min - Average sunshine in December:
5h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days
South Mountain, TX
- Average sunshine days in January:
22.3 days - Average sunshine days in February:
16.8 days - Average sunshine days in March:
15.8 days - Average sunshine days in April:
14.5 days - Average sunshine days in May:
13.5 days - Average sunshine days in June:
17.8 days
- Average sunshine days in July:
18.7 days - Average sunshine days in August:
18.5 days - Average sunshine days in September:
13.9 days - Average sunshine days in October:
18.1 days - Average sunshine days in November:
18.8 days - Average sunshine days in December:
19.8 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is May (13.5 days).
Average UV index
South Mountain, TX
The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover
South Mountain, TX
The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility
South Mountain, 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).





