Sunnyvale, TX Weather
Sunnyvale, TX climate is hot during summer when temperatures tend to be in the 80's and cold during winter when temperatures tend to be in the 40's.
The warmest month of the year is August with an average maximum temperature of 94.50 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 30.80 degrees Fahrenheit.
Temperature variations between night and day tend to be moderate during summer with a difference that can reach 23 degrees Fahrenheit, and moderate during winter with an average difference of 23 degrees Fahrenheit.
The annual average precipitation at Sunnyvale is 39.34 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is May with an average rainfall of 5.26 Inches.
Weather Data
Current Conditions
|
Fair, 64°F | Humidity: 24% | Dewpoint: 27°F |
| Wind Speed: NW 10.4 MPH (9 KT) | Heat Index: 64°F | ||
| Barometer: 30.16 in. | Wind Chill: 64°F |
Weather Forecast
 | Tonight: Clear. Lows in the upper 30s. North winds 5 to 10 mph. | |
| Lo: 39°F | ||
 | Hi: 65°F | Thanksgiving day: Sunny. Highs in the mid 60s. Northwest winds around 5 mph. |
| Lo: 41°F | ||
| Hi: 71°F | Friday: Sunny. Highs in the lower 70s. Southwest winds 5 to 10 mph. |
| Lo: 49°F | ||
| Hi: 69°F | Saturday: Mostly sunny. Highs in the upper 60s. |
| Lo: 55°F | ||
 | Hi: 61°F | Sunday: Mostly cloudy. A chance of showers and perhaps an isolated thunderstorm in the morning...Then a chance of showers and thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 40 percent. |
| Lo: 45°F | ||
 | Hi: 51°F | Monday: Mostly cloudy. Highs in the lower 50s. |
| Lo: 35°F | ||
 | Hi: 50°F | Tuesday: Partly cloudy. Lows in the mid 30s. Highs around 50. |
| Lo: 35°F |
Moon, Sunrise and Sunset
 |
Moon Phase: Waxing Gibbous Moon | Civil Twilight: 6:38 AM CST |
Sunrise: 7:04 AM CST |
| Sunset: 5:20 PM CST |
Civil Twilight: 5:47 PM CST |
Normal Climate
Normal Temperatures
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max °F | 53.4 | 58.9 | 66.9 | 74.5 | 81.9 | 89.6 | 94.2 | 94.5 | 88.0 | 78.2 | 65.2 | 56.3 | 75.1 |
| Mean °F | 42.1 | 47.3 | 55.2 | 62.9 | 71.0 | 78.5 | 82.8 | 82.6 | 76.2 | 65.7 | 53.8 | 45.1 | 63.6 |
| Min °F | 30.8 | 35.6 | 43.4 | 51.2 | 60.0 | 67.4 | 71.3 | 70.7 | 64.3 | 53.1 | 42.4 | 33.9 | 52.0 |
Normal Precipitation
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | 2.08 | 2.69 | 3.45 | 3.63 | 5.26 | 3.70 | 2.31 | 2.03 | 3.03 | 4.57 | 3.36 | 3.23 | 39.34 |
