Climate and monthly weather forecastSan Angelo, TX
Climate and monthly weather forecast
The climate of San Angelo
San Angelo, Texas, per the Köppen climate classification, falls primarily within the Cfa climate zone, representing a humid subtropical climate with no defined dry season. Its inherited traits feature warm, often hot, summers and mild winters.Temperature in San Angelo shows noteworthy seasonal fluctuations, but remains warm for the larger part of the year. Average highs range from 58.8°F (14.9°C) in the cooler months to scorching temperatures of up to 95.7°F (35.4°C) in the summer. Lows are more temperate, with the coldest months dipping down to 39.7°F (4.3°C) and the warmer months poised at a comfortable 75.4°F (24.1°C).
San Angelo experiences a downpour throughout the year with an increased incidence during May and October, with the monthly average rainfall peaking at 2.4" (61mm). Thunderstorms catalyze these rainfall patterns, particularly from spring to fall. However, snow is a rare spectacle with less than one inch falling annually, primarily in December and January.
Relative humidity is rather consistent, marginally hovering over 50% all year round. The wind varies between 9.4mph (15.1km/h) to 13.5mph (21.7km/h) with the highest gusts up to 19.8mph (31.9km/h). The ultraviolet index reveals a maximum of 8 during the summer months - an indication for visitors to equip themselves with sun protection. Daylight hours peak at 14.2 hours in summer and fall to the lowest at 10.1 hours in winter.
The best time to visit San Angelo
Considering the climatic parameters, the best time to visit San Angelo is from late spring to early summer (April to June) or early fall (September to October). During these periods, the weather strikes a balance between comfortable temperatures and lower rainfalls. The average high temperature ranges from 72.9°F (22.7°C) to 87.4°F (30.8°C) and rainfall falls below 2" (51mm) with average relative humidity below 54%. Moreover, these months offer long daylight hours with an average sunshine duration of 9.5 hours per day, offering ample time for sightseeing and outdoor activities.The worst time to visit San Angelo
The hot summer months from July to August and cold winter months from December to January might not offer the best climatic conditions for visitors to San Angelo. These periods witness extreme temperatures with highs reaching up to 95.7°F (35.4°C) during summer and lows dipping to 39.7°F (4.3°C) in winter. While the rainfall decreases during these months, the snowfall increases in the winter, potentially making outdoor activities less pleasant.Spring weather in San Angelo
Spring initiates a significant warming trend in San Angelo from March to May. The temperature ascends from an average high of 72.9°F (22.7°C) to 86.7°F (30.4°C) and lows improve from 51.4°F (10.8°C) to 64.9°F (18.3°C). Rainfall marks an uptick during these months, reaching a spring maximum of 2.17" (55mm) in May. Daylight slowly lengthens and sunshine hours extend up to 10.4 hours per day.Summer weather in San Angelo
Defined by heat and humidity, summer in San Angelo from June to August sees the highest temperatures of the year. Daily highs soar up to 95.7°F (35.4°C) and lows remain warm at around 75°F (23.9°C). Rainfall is consistent during these months, averaging at approximately 1.3" (33mm). Extended daylight hours peak at 14.2 hours in June, accompanied by the year's longest sunshine duration - up to 11.4 hours per day.Autumn weather in San Angelo
Autumn witnesses a gradual decline in temperatures with highs falling from 87.4°F (30.8°C) in September to 67.1°F (19.5°C) by November. Nights become cooler with lows dropping from 69.3°F (20.7°C) to 48.2°F (9°C). Rainfall spikes to 2.4" (61mm) in October as the season transitions. Daylight hours begin to shorten and average sunshine hours sink to around 7.3 hours a day.Winter weather in San Angelo
Winter in San Angelo, spanning December to February, is characterized by its relatively mild conditions compared to other regions. High temperatures come down to an average of 58.8°F (14.9°C), and lows plunge to an average of 39.7°F (4.3°C). Rainfall is relatively low, with snow making an occasional appearance. Daylight hours shorten to around 10.4 hours, and sunshine hours compress to an average of 6.6 hours daily.Weather in January
The year begins with mild temperatures and limited rainfall in San Angelo, Texas. Temperatures this month, as compared to the rest of the year, are relatively low, yet in a comfortable range with average maximums around 58.8°F (14.9°C). Weather in January »Weather in February
Following the tranquil January, February sees an uptick in temperature, maintaining the generally moderate winter climate experienced in San Angelo. The average high temperature continues to climb, reaching up to 63.7°F (17.6°C), bringing a natural warmth to the late winter days. Weather in February »Weather in March
A definitive transition from winter to spring is observed in March, as the weather progressively heats up from winter's chill. The temperature hike is felt more in the evenings with the average low temperature reaching 51.4°F (10.8°C). Weather in March »Weather in April
The weather makes an abrupt jump into the spring spirit during April, suggesting the arrival of warmer days ahead. Despite the overall dry conditions prevalent in San Angelo, April sees a relative increase in rainfall to about 1.14" (29mm). Weather in April »Weather in May
May asserts itself as a fully-fledged spring month, opening up to the grandeur of the Texan summer. Unlike the previous months, May sees a spike in both rainfall and relative humidity, peaking at 2.17" (55mm) and 54% respectively. This month typically marks the onset of San Angelo's rainy season, bringing a refreshing break to the dry spell. Weather in May »Weather in June
June is synonymous with a turning point in San Angelo's weather narrative, marking the arrival of summer and increasingly hot days. The mercury soars to a scorching 93.7°F (34.3°C), ushering the onset of a typical Texan summer. The longer sunshine hours enhance vitamin D synthesis, benefiting the city's inhabitants immensely. Weather in June »Weather in July
Welcome to the heart of summer in San Angelo. Moving deeper into the season, July stands out for its exceptionally high temperatures that rise up 95.4°F (35.2°C). The intense heat radiating from the sun characterises this month as sunny beach days or indoor activities become more appealing. Weather in July »Weather in August
August, the zenith of summer in San Angelo, burns with all its might as temperatures reach a searing 95.7°F (35.4°C). Amid the persistent heat, local citizens adapt to the weather by filling their evenings with activities in local parks and recreational areas. Weather in August »Weather in September
As summer draws to a close, September introduces an initial taste of autumn. While it’s still summer-hot during the day, night-time temperatures drop to a cool 69.3°F (20.7°C), making after-dark outdoor ventures pleasant outings. Weather in September »Weather in October
October depicts a complete transformation from the sweltering summer to a much-anticipated fall in San Angelo. The noticeable shift in temperature and weather conditions bring in pleasant days and chilly nights. With the rainfall increasing to 2.4" (61mm), the natural landscape undergoes a facelift, clad in glorious fall colours. Weather in October »Weather in November
Following the moderate October, November sees a marked reduction in temperature in preparation for the fast-approaching winter. Days remain mildly warm, but the average low temperature dips, hitting a fine 48.2°F (9°C) point during midnight hours. Weather in November »Weather in December
From the mild autumn, December dips into proper winter weather. Conditions remain relatively cool compared to the scorching summer with high temperatures averaging round 58.6°F (14.8°C). Being the final month of the year, December puts a chilly end to the year in San Angelo, Texas. Weather in December »Updated: Feb 14, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January is the month with the least rainfall. Rain falls for 4.1 days and accumulates 0.59" (15mm) of precipitation.
In San Angelo, Texas, during the entire year, the rain falls for 89.7 days and collects up to 15.39" (391mm) of precipitation.
Months with snowfall are January through March, November and December.
In San Angelo, Texas, during the entire year, snow falls for 3.3 days and aggregates up to 1.65" (42mm) of snow.
The month with the most snowfall is February, when snow falls for 1 days and typically aggregates up to 0.71" (18mm) of snow.
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.
April through October are months without snowfall in San Angelo.
The month with the longest days is June, with an average of 14h and 12min of daylight.
With an average of 11.4h of sunshine, July has the most sunshine of the year.
July is the month with the highest UV index, with an average maximum UV index of 8.
In San Angelo, August is identified by the average highest temperatures, reaching a peak of 95.7°F (35.4°C) and a low of 75.4°F (24.1°C).
August is the least humid month, with an average relative humidity of 46%.
The month with the most rainfall in San Angelo, Texas, is October, when the rain falls for 7.5 days and typically aggregates up to 2.4" (61mm) of precipitation.
November is the most humid month, with an average relative humidity of 58%.
The coldest period in San Angelo is December, when temperatures fluctuate between an average high of 58.6°F (14.8°C) and a low of 40.8°F (4.9°C).
December has the shortest days of the year, with an average of 10h and 6min of daylight.
The month with the least sunshine is December, with an average of 6.4h of sunshine.
The month with the lowest UV index in San Angelo is December, with an average maximum UV index of 3.
Average temperature
San Angelo, TX
The warmest month (with the highest average high temperature) is August (95.7°F).
The month with the lowest average high temperature is December (58.6°F).
The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).
Average pressure
San Angelo, TX
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
29.99"Hg - Average pressure in April:
29.89"Hg - Average pressure in May:
29.87"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are May and June (29.87"Hg).
Average wind speed
San Angelo, TX
- Average wind speed in January:
10.6mph - Average wind speed in February:
11.7mph - Average wind speed in March:
12.7mph - Average wind speed in April:
13.5mph - Average wind speed in May:
12.7mph - Average wind speed in June:
11.9mph
- Average wind speed in July:
10.6mph - Average wind speed in August:
9.8mph - Average wind speed in September:
9.4mph - Average wind speed in October:
10.7mph - Average wind speed in November:
11.2mph - Average wind speed in December:
10.3mph
The windiest month (with the highest average wind speed) is April (13.5mph).
The calmest month (with the lowest average wind speed) is September (9.4mph).
Average humidity
San Angelo, TX
The month with the highest relative humidity is November (58%).
The month with the lowest relative humidity is August (46%).
Average rainfall
San Angelo, TX
- Average rainfall in January:
0.59" - Average rainfall in February:
0.63" - Average rainfall in March:
1.14" - Average rainfall in April:
1.14" - Average rainfall in May:
2.17" - Average rainfall in June:
1.38"
- Average rainfall in July:
1.26" - Average rainfall in August:
1.38" - Average rainfall in September:
1.81" - Average rainfall in October:
2.4" - Average rainfall in November:
0.75" - Average rainfall in December:
0.75"
The wettest month (with the highest rainfall) is October (2.4").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days
San Angelo, TX
- Average rainfall days in January:
4.1 days - Average rainfall days in February:
4.4 days - Average rainfall days in March:
7.6 days - Average rainfall days in April:
8.4 days - Average rainfall days in May:
11.6 days - Average rainfall days in June:
7.7 days
- Average rainfall days in July:
8.9 days - Average rainfall days in August:
8.3 days - Average rainfall days in September:
11.3 days - Average rainfall days in October:
7.5 days - Average rainfall days in November:
4.7 days - Average rainfall days in December:
5.2 days
The month with the highest number of rainy days is May (11.6 days).
The month with the least rainy days is January (4.1 days).
Average snowfall
San Angelo, TX
The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
San Angelo, TX
- Average snowfall days in January:
0.8 days - Average snowfall days in February:
1 days - Average snowfall days in March:
0.3 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:
0.4 days - Average snowfall days in December:
0.8 days
The month with the highest number of snowfall days is February (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
San Angelo, 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:
7h and 54min - Average sunshine in February:
8h and 24min - Average sunshine in March:
8h and 24min - Average sunshine in April:
8h and 54min - Average sunshine in May:
10h and 24min - Average sunshine in June:
11h and 18min
- Average sunshine in July:
11h and 24min - Average sunshine in August:
9h and 54min - Average sunshine in September:
8h and 54min - Average sunshine in October:
8h and 12min - Average sunshine in November:
6h and 30min - Average sunshine in December:
6h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days
San Angelo, TX
- Average sunshine days in January:
26 days - Average sunshine days in February:
22.5 days - Average sunshine days in March:
22.3 days - Average sunshine days in April:
20.2 days - Average sunshine days in May:
16.8 days - Average sunshine days in June:
20.3 days
- Average sunshine days in July:
20.9 days - Average sunshine days in August:
20.8 days - Average sunshine days in September:
16.9 days - Average sunshine days in October:
21.9 days - Average sunshine days in November:
23.7 days - Average sunshine days in December:
24 days
The month with the most sunshine days is January (26 days).
The month with the least sunshine days is May (16.8 days).
Average UV index
San Angelo, 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
San Angelo, TX
The months with the most cloud cover are March and September (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility
San Angelo, 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).
