Grand Terrace, CA Weather
Grand Terrace, CA climate is warm during summer when temperatures tend to be in the 70's and cool during winter when temperatures tend to be in the 50's.
The warmest month of the year is August with an average maximum temperature of 94.40 degrees Fahrenheit, while the coldest month of the year is December with an average minimum temperature of 41.10 degrees Fahrenheit.
Temperature variations between night and day tend to be relatively big during summer with a difference that can reach 32 degrees Fahrenheit, and moderate during winter with an average difference of 25 degrees Fahrenheit.
The annual average precipitation at Grand Terrace is 10.67 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is January with an average rainfall of 2.47 Inches.
Weather Data
Current Conditions
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Fair, 53°F | Humidity: 21% | Dewpoint: 14°F |
| Wind Speed: NE 3.5 MPH (3 KT) | Heat Index: 53°F | ||
| Barometer: 30.09 in. | Wind Chill: 53°F |
Weather Forecast
| Tonight: Clear. Lows 40 to 50. Winds east 15 mph. | ||
| Lo: 46°F | ||
| Hi: 79°F | Wednesday: Sunny. Highs 74 to 82. Winds east 15 mph. | |
| Lo: 47°F | ||
| Hi: 81°F | Thanksgiving day: Mostly sunny. Highs 77 to 84. Winds east 15 mph in the morning becoming light. | |
| Lo: 45°F | ||
| Hi: 74°F | Friday: Mostly sunny. Highs 70 to 76. | |
| Lo: 44°F | ||
| Hi: 69°F | Saturday: Partly cloudy in the morning...Becoming mostly sunny. Patchy fog in the morning. Highs 65 to 71. | |
| Lo: 43°F | ||
| Hi: 69°F | Sunday: Mostly sunny. Highs 64 to 72. | |
| Lo: 42°F | ||
| Hi: 74°F | Monday: Mostly sunny. Highs 70 to 76. | |
| Lo: 47°F |
Moon, Sunrise and Sunset
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Moon Phase: Waxing Gibbous Moon | Civil Twilight: 6:03 AM PST |
Sunrise: 6:30 AM PST |
| Sunset: 4:41 PM PST |
Civil Twilight: 5:08 PM PST |
Normal Climate
Normal Temperatures
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max °F | 66.4 | 68.2 | 69.6 | 75.5 | 79.6 | 87.3 | 93.5 | 94.4 | 90.6 | 82.9 | 73.9 | 67.9 | 79.2 |
| Mean °F | 54.2 | 55.9 | 57.5 | 61.8 | 66.3 | 72.1 | 77.4 | 78.2 | 75.1 | 68.0 | 59.5 | 54.5 | 65.0 |
| Min °F | 42.0 | 43.6 | 45.4 | 48.1 | 52.9 | 56.9 | 61.2 | 62.0 | 59.6 | 53.0 | 45.0 | 41.1 | 50.9 |
Normal Precipitation
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | 2.47 | 2.39 | 2.19 | 0.60 | 0.25 | 0.10 | 0.03 | 0.17 | 0.26 | 0.26 | 0.78 | 1.17 | 10.67 |

