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January Weather in San Angelo, United States

Last updated: June 24, 2025

In San Angelo, United States, the average temperature in January hovers around 8°C (47°F). Visitors can expect a minimum of -10°C (14°F) and a maximum of 27°C (81°F). During this period, the region typically sees 25 mm (1.0 in) of precipitation spread over about 3 days, and the average humidity stands at a comfortable 74%.

January Temperature in San Angelo

In January in San Angelo, the average temperature is 8°C (47°F), with maximums reaching 27°C (81°F) and minimums dropping as low as -10°C (14°F). Travelers should be prepared for a wide range of temperatures and pack accordingly to enjoy their stay.

January Weather in San Angelo: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in San Angelo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Angelo, January typically has an average temperature of 8°C (47°F), with highs reaching up to 27°C (81°F) and lows dropping to around -10°C (14°F).
JanFebMarAprMayJunJulAugSepOctNovDec475061677682858478685751
Data source: Temperature data for San Angelo generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in San Angelo

In San Angelo in January, the precipitation amount is 25 mm (1.0 in) over the course of 3 days.

January Precipitation Trends in San Angelo

The chart displays monthly precipitation patterns in San Angelo, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In San Angelo, January typically receives around 25 mm (1.0 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec2523514910350213571562825
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in San Angelo

In San Angelo in January humidity is 74%. With an average temperature of 8°C (47°F), this humidity feels like a damp chill that seeps into your bones, making every outdoor excursion feel more invigorating yet slightly uncomfortable, as the moisture in the air intensifies the cold and leaves you yearning for warmer layers.

January Average Humidity in San Angelo

This chart illustrates the average monthly humidity levels in San Angelo, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in San Angelo is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%74%69%70%77%76%66%60%67%72%84%85%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in San Angelo

In San Angelo in January, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in San Angelo.

Maximum UV Index Levels in San Angelo for January

The chart shows the monthly maximum UV Index (UVI) for San Angelo in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in San Angelo typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579111212121111864
Data source: San Angelo January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How January Weather in San Angelo Compares to Other Months

Weather in San Angelo varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in San Angelo, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in San Angelo, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)25 mm (1.0 inches)74%moderate
February Weather10°C (50°F)23 mm (0.9 inches)74%high
March Weather16°C (61°F)51 mm (2.0 inches)68%very high
April Weather19°C (67°F)49 mm (1.9 inches)70%extreme
May Weather24°C (76°F)103 mm (4.0 inches)77%extreme
June Weather28°C (82°F)49 mm (1.9 inches)76%extreme
July Weather29°C (85°F)21 mm (0.8 inches)66%extreme
August Weather29°C (85°F)35 mm (1.4 inches)60%extreme
September Weather26°C (78°F)71 mm (2.8 inches)67%extreme
October Weather20°C (68°F)56 mm (2.2 inches)72%very high
November Weather14°C (57°F)28 mm (1.1 inches)83%high
December Weather11°C (51°F)25 mm (1.0 inches)85%moderate

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