Seasonal Weather Patterns in Pasadena, CA
Temperature
Average Daily Temperature (°F)
| Pasadena, CA | U.S. Avg. | Difference | |
|---|---|---|---|
| January | 53 | 43 | +10 |
| July | 75 | 79 | -4 |
Average Monthly Number of Hot and Freezing Days
| Pasadena, CA | U.S. Avg. | Difference | |
|---|---|---|---|
| Summer: Hot Days | 8 | 11 | -3 |
| Winter: Freezing Days | 0 | 12 | -12 |
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Sunshine
Average Annual Number of Clear and Cloudy Days
| Pasadena, CA | U.S. Avg. | Difference | |
|---|---|---|---|
| Clear Days | 283 | 217 | +66 |
| Cloudy Days | 82 | 148 | -66 |
Average Daylight Hours per Day
| Pasadena, CA | U.S. Avg. | Difference | |
|---|---|---|---|
| January | 10 | 10 | No difference |
| July | 14 | 15 | -1 |
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Precipitation
Average Annual Number of Rainy and Snow Days
| Pasadena, CA | U.S. Avg. | Difference | |
|---|---|---|---|
| Rainy Days | 39 | 46 | -7 |
| Snow Days | 0 | 7 | -7 |
Average Monthly Humidity (%) in Pasadena, CA
| Pasadena, CA | U.S. Avg. | Difference | |
|---|---|---|---|
| January | 54 | 68 | -14% |
| July | 45 | 61 | -16% |
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