Redding, California Weather History

California, United States  •  45 yrs data 📍 40.5913°N, 122.3623°W
°F / °C
☀️

Quick Climate Facts

(1981 – 2025)
Hottest Month
🔥
Jul
Avg 82.6°F
Min 55.4°F
Max 109.8°F
Coldest Month
❄️
Dec
Avg 43.6°F
Min 25.4°F
Max 61.8°F
Wettest Month
🌧️
Dec
201 mm
Driest Month
🏜️
Jul
4 mm
Most Humid
💧
Jan
83%
Least Humid
🌬️
Aug
26%
Highest Ever
🌡️
118.4°F
Jul 2024
Lowest Ever
🧊
12.5°F
Jan 1982
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 Redding Across Seasons

❄️ Winter in Redding

December is Redding's coldest month, with average lows reaching 25.3°F.
🌡️ December to February (avg)  ·  25.9°F63.3°F

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

☀️ Summer in Redding

Summer temperatures in Redding peak in July, climbing to 109.8°F.
🌡️ July to September (avg)  ·  53.1°F106.7°F

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

🌧️ Rainy Season in Redding

Redding sees its highest rainfall in December, receiving approximately 201 mm of precipitation.
🌧️ December to February (avg)  ·  up to 201 mm

☔ Heavy Rainfall expected — carry rain gear and plan outdoor activities around these months.

📅 Monthly Averages

🌡️ Temperature Patterns

Monthly averages · 1981–2025 climate normals · °F

🌡️ Redding Monthly Temperature Guide

Jul is the hottest month in Redding, with average highs reaching 109.8°F, while Dec is the coldest with lows dropping to 25.4°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 Redding

Redding receives its highest rainfall in Dec, while humidity peaks during winter months.
🌧️ Wettest: Dec — 201 mm ☀️ Driest: Jul — 4 mm

💧 Humidity peaks at 83% in Jan · annual avg 59%

🌍 Climate Summary

Avg Annual Temp:61.3°F
Avg Annual Rainfall:1080 mm
Avg Humidity:59%
Data Period:1981 – 2025

Redding Climate Overview

Redding has a warm temperate climate with warm summers and cold winters.

Temperatures peak in Jul and drop to their lowest in Dec, while rainfall is highest during winter months.

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

📈 Yearly Trends

The warmest year in Redding's recorded history was 2020 (avg: 64.6°F), while the coldest year was 1982 (avg: 58.1°F), based on annual average temperatures.

📊 Key Climate Trends

🌡️ Annual Temperature Trend

View Range:

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

Redding's temperatures shows a slight warming trend over the past decade. The highest recorded temperature reached 118.4°F in Jul 2024, while the lowest dropped to 12.5°F in Jan 1982.

🌧️ Annual Precipitation

View Range:

Total annual precipitation · Last 10 years · mm/year

Annual rainfall in Redding 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 Redding?
Based on 45 years of data (1981–2025), Jul is typically the hottest month in Redding, California, with average high temperatures around 109.8°F.
What is the coldest month in Redding?
Dec is the coldest month in Redding, with average low temperatures around 25.4°F.
What is the rainiest month in Redding?
Dec receives the most rainfall with approximately 201 mm, while Jul is the driest with 4 mm.
What was the highest temperature ever recorded in Redding?
The highest recorded temperature was 118.4°F in Jul 2024. This is part of the historical record spanning 1981–2025.
What was the lowest temperature ever recorded in Redding?
The lowest recorded temperature was 12.5°F in Jan 1982.
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 Redding get?
Redding receives the most sunlight in Jul with an average solar radiation of 8.11 kWh/m²/day. This solar radiation data, sourced from NASA POWER, is useful for solar energy planning, agriculture, and understanding seasonal sunshine availability in California.
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