California has a warm subtropical climate with warm summers and mild winters.
California has an average annual temperature of 64.8°F across all 214 cities, with approximately 429 mm of annual precipitation and average humidity of 60%. Temperatures peak in August and drop to their lowest in January, while rainfall is highest during winter months.
The warmest city is Delano with average July highs of 113.0°F, while Clovis is the coldest with average January lows of 22.8°F. Humidity remains moderate throughout the year, especially in spring, creating warm and dry conditions. These seasonal patterns offer comfortable conditions year-round, with warm summers and mild winters.
| Month | 🌤️ | High | Low | Avg | Humid % | Rain (mm) | Wind (m/s) | Solar (kWh/m²) |
|---|---|---|---|---|---|---|---|---|
| January | ⛅ | 71.6°F | 34.3°F | 52.9°F | 68% | 83 | 2.2 | 2.90 |
| February | ⛅ | 73.4°F | 35.4°F | 54.3°F | 70% | 86 | 2.2 | 3.80 |
| March | 🌤️ | 76.8°F | 37.6°F | 57.2°F | 70% | 68 | 2.2 | 5.10 |
| April | ☀️ | 83.7°F | 40.3°F | 62.1°F | 66% | 25 | 2.3 | 6.40 |
| May | ☀️ | 88.0°F | 45.5°F | 66.7°F | 63% | 12 | 2.3 | 7.10 |
| June | 😎 | 94.5°F | 49.8°F | 72.1°F | 56% | 3 | 2.3 | 7.60 |
| July | 😎 | 97.5°F | 55.0°F | 76.3°F | 51% | 2 | 2.2 | 7.50 |
| August | 😎 | 98.4°F | 56.1°F | 77.2°F | 50% | 4 | 2.1 | 6.90 |
| September | 😎 | 97.9°F | 53.1°F | 75.4°F | 52% | 7 | 1.9 | 5.80 |
| October | ☀️ | 91.2°F | 47.1°F | 69.3°F | 54% | 20 | 1.9 | 4.50 |
| November | ☀️ | 81.0°F | 39.2°F | 60.1°F | 59% | 43 | 2.1 | 3.30 |
| December | 🌤️ | 72.0°F | 34.5°F | 53.2°F | 65% | 75 | 2.2 | 2.60 |
Showing average climate conditions across 45 years (1981–2025) · averaged across all 214 cities in California
🧥 Light layers are sufficient — this Mild Winter stays cool without prolonged hard freezes.
🌤️ Limit midday outdoor exposure and stay hydrated — this is an intense Hot Summer.
☔ Moderate Rainfall expected — carry rain gear and plan outdoor activities around these months.
Region-wide monthly averages across 214 cities · 1981–2025 · °F
Temperatures rise steadily from spring, peak in August, and gradually decline through autumn into winter.
These seasonal patterns offer comfortable conditions year-round, with warm summers and mild winters.
Region-wide monthly rainfall · 1981–2025 · mm/month
Monthly averages · 1981–2025
💧 Humidity peaks at 70% in March · annual avg 60%
The warmest year on record was 2014 (avg: 67.6°F), while the coldest year was 1982 (avg: 61.7°F).
Averaged across all 214 cities in California · Last 10 years · °F
Averaged across all 214 cities in California · Last 10 years · mm/year
🔥 hottest · ❄️ coldest · 🌧️ wettest
ℹ️ Values are averages across all 214 cities in California for each year.
| Year | Min Temp | Avg Temp | Max Temp | Rainfall (mm) | Avg Humidity | Avg Wind |
|---|---|---|---|---|---|---|
2025 | 46.6°F | 66.6°F | 86.5°F | 481 | 64% | 2.1 m/s |
2024 | 45.5°F | 65.3°F | 84.9°F | 498 | 63% | 2.1 m/s |
2023 | 44.2°F | 63.5°F | 82.8°F | 660 | 66% | 2.2 m/s |
2022 | 44.6°F | 65.8°F | 86.9°F | 279 | 59% | 2.1 m/s |
2021 | 45.1°F | 66.6°F | 88.0°F | 400 | 58% | 2.2 m/s |
2020 🔥 | 45.1°F | 67.1°F | 88.9°F | 266 | 59% | 2.1 m/s |
2019 | 43.9°F | 63.5°F | 83.1°F | 688 | 64% | 2.2 m/s |
2018 | 45.0°F | 65.7°F | 86.4°F | 366 | 59% | 2.1 m/s |
2017 | 44.4°F | 65.8°F | 87.1°F | 516 | 61% | 2.1 m/s |
2016 | 45.1°F | 65.8°F | 86.4°F | 469 | 61% | 2.1 m/s |
Showing 1 to 10 of 45 years
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.
