San Angelo, Texas Weather History

Texas, United States  •  45 yrs data 📍 31.4632°N, 100.5002°W
°F / °C
☀️

Quick Climate Facts

(1981 – 2025)
Hottest Month
🔥
Jul
Avg 85.5°F
Min 67°F
Max 104.1°F
Coldest Month
❄️
Jan
Avg 48.2°F
Min 21.1°F
Max 75.3°F
Wettest Month
🌧️
May
78 mm
Driest Month
🏜️
Jan
22 mm
Most Humid
💧
Dec
63%
Least Humid
🌬️
Apr
50%
Highest Ever
🌡️
112.9°F
Jun 2023
Lowest Ever
🧊
3.9°F
Dec 1989
Monthly Climate Data
Month 🌤️ High Low Avg Humid % Rain (mm) Wind (m/s) Solar (kWh/m²)

Showing average climate conditions across 45 years (1981–2025)

🌍 Weather in San Angelo Across Seasons

❄️ Winter in San Angelo

January is San Angelo's coldest month, with average lows reaching 21.2°F.
🌡️ December to February (avg)  ·  21.6°F77.7°F

🧥 Expect frosty nights and below-freezing temperatures during this Cold Winter period.

☀️ Summer in San Angelo

Summer temperatures in San Angelo peak in July, climbing to 104.2°F.
🌡️ June to August (avg)  ·  64.8°F103.6°F

🌤️ Limit midday outdoor exposure and stay hydrated — this is an intense Hot Summer.

🌧️ Rainiest Period in San Angelo

San Angelo sees its highest rainfall in May, receiving approximately 78 mm of precipitation.
🌧️ May to September (avg)  ·  up to 78 mm

☔ Rainfall is spread across the year with no sharply defined wet season.

📅 Monthly Averages

🌡️ Temperature Patterns

Monthly averages · 1981–2025 climate normals · °F

🌡️ San Angelo Monthly Temperature Guide

Jul is the hottest month in San Angelo, with average highs reaching 104.1°F, while Jan is the coldest with lows dropping to 21.1°F.

Temperatures rise steadily from spring, peak in Jul, and gradually decline through fall into winter.

These seasonal patterns make summer pleasant for travel, while winters can bring frost and occasional snowfall.

🌧️ Rainfall Distribution

Monthly rainfall · 1981–2025 seasonal trends · mm/month

💨 Humidity & Wind Speed

Monthly averages · 1981–2025

💧 Rainfall & Humidity in San Angelo

San Angelo receives its highest rainfall in May, while humidity peaks during winter months.
🌧️ Wettest: May — 78 mm ☀️ Driest: Jan — 22 mm

💧 Humidity peaks at 63% in Dec · annual avg 57%

🌍 Climate Summary

Avg Annual Temp:66.6°F
Avg Annual Rainfall:552 mm
Avg Humidity:57%
Data Period:1981 – 2025

San Angelo Climate Overview

San Angelo has a warm subtropical climate with warm summers and cold winters.

Temperatures peak in Jul and drop to their lowest in Jan, while rainfall is highest during spring and early summer months.

Humidity remains moderate throughout the year, especially during winter months, creating cold and dry conditions.

📈 Yearly Trends

The warmest year in San Angelo's recorded history was 2024 (avg: 70°F), while the coldest year was 1991 (avg: 64°F), based on annual average temperatures.

📊 Key Climate Trends

🌡️ Annual Temperature Trend

View Range:

Average annual high/low · Last 10 years · °F

San Angelo's temperatures shows a slight warming trend over the past decade. The highest recorded temperature reached 112.9°F in Jun 2023, while the lowest dropped to 3.9°F in Dec 1989.

🌧️ Annual Precipitation

View Range:

Total annual precipitation · Last 10 years · mm/year

Annual rainfall in San Angelo shows noticeable variation. Rainfall has decreased in recent years compared to earlier periods.
📋 Yearly Climate Data Overview

🔥 hottest  ·  ❄️ coldest  ·  🌧️ wettest

Year Min Temp Avg Temp Max Temp Rainfall (mm) Avg Humidity Avg Wind

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❓ Frequently Asked Questions

What is the hottest month in San Angelo?
Based on 45 years of data (1981–2025), Jul is typically the hottest month in San Angelo, Texas, with average high temperatures around 104.1°F.
What is the coldest month in San Angelo?
Jan is the coldest month in San Angelo, with average low temperatures around 21.1°F.
What is the rainiest month in San Angelo?
May receives the most rainfall with approximately 78 mm, while Jan is the driest with 22 mm.
What was the highest temperature ever recorded in San Angelo?
The highest recorded temperature was 112.9°F in Jun 2023. This is part of the historical record spanning 1981–2025.
What was the lowest temperature ever recorded in San Angelo?
The lowest recorded temperature was 3.9°F in Dec 1989.
How many years of data does this page cover?
This page covers 45 years of climate data from 1981 to 2025. As new data is added to the database the page automatically reflects the updated coverage.
How much sunlight does San Angelo get?
San Angelo receives the most sunlight in Jun with an average solar radiation of 7.18 kWh/m²/day. This solar radiation data, sourced from NASA POWER, is useful for solar energy planning, agriculture, and understanding seasonal sunshine availability in Texas.
Where does this weather data come from?
All climate data is sourced from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite and model data. It provides monthly averages for temperature, precipitation, humidity, wind speed, and solar radiation.

📚 Data Source

All weather data is sourced from NASA POWER (Prediction of Worldwide Energy Resources), a NASA project providing solar and meteorological data for renewable energy, building efficiency, and agricultural research.

Parameters included:
  • Temperature (Min, Max)
  • Precipitation
  • Relative Humidity
  • Wind Speed
  • Solar Radiation
Data specifications:
  • Resolution: Monthly
  • Spatial: 0.5° × 0.625°
  • Source: MERRA-2
  • Coverage: 1981–2025
  • Years: 45