Round Rock, AZ Weather
Round Rock, AZ climate is warm during summer when temperatures tend to be in the 70's and very cold during winter when temperatures tend to be in the 30's.
The warmest month of the year is July with an average maximum temperature of 86.80 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 17.40 degrees Fahrenheit.
Temperature variations between night and day tend to be moderate during summer with a difference that can reach 28 degrees Fahrenheit, and moderate during winter with an average difference of 23 degrees Fahrenheit.
The annual average precipitation at Round Rock is 9.42 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is July with an average rainfall of 1.40 Inches.
Weather Data
Current Conditions
|
Fair, 33°F | Humidity: 40% | Dewpoint: 11°F |
| Wind Speed: CALM | Heat Index: 33°F | ||
| Barometer: 30.03 in. | Wind Chill: 33°F |
Weather Forecast
 | Hi: 45°F | Today: Colder. Partly cloudy early in the morning then becoming mostly sunny. Highs 41 to 47. Light winds becoming northwest around 15 mph late in the afternoon. |
| Lo: 18°F | ||
 | Hi: 42°F | Tuesday: Mostly sunny. Highs around 42. Light winds. |
| Lo: 19°F | ||
| Hi: 49°F | Wednesday: Not as cool. Mostly sunny. Highs around 49. Light winds. |
| Lo: 21°F | ||
| Hi: 53°F | Thanksgiving day: Sunny. Highs around 53. |
| Lo: 24°F | ||
| Hi: 52°F | Friday: Partly cloudy. Highs around 52. |
| Lo: 26°F | ||
| Hi: 48°F | Saturday: Partly cloudy. Highs around 48. Lows 20 to 28. |
| Lo: 25°F | ||
| Hi: 48°F | Sunday: Partly cloudy. Highs around 48. Lows 20 to 28. |
| Lo: 25°F |
Moon, Sunrise and Sunset
 |
Moon Phase: First Quarter Moon | Civil Twilight: 6:35 AM MST |
Sunrise: 7:02 AM MST |
| Sunset: 5:04 PM MST |
Civil Twilight: 5:32 PM MST |
Normal Climate
Normal Temperatures
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max °F | 40.3 | 44.8 | 51.9 | 59.8 | 70.3 | 82.0 | 86.8 | 84.1 | 76.6 | 65.0 | 50.3 | 41.1 | 62.8 |
| Mean °F | 28.9 | 33.6 | 40.2 | 47.1 | 56.5 | 67.0 | 72.5 | 70.6 | 63.2 | 51.9 | 39.0 | 30.2 | 50.1 |
| Min °F | 17.4 | 22.4 | 28.5 | 34.4 | 42.6 | 51.9 | 58.1 | 57.0 | 49.7 | 38.7 | 27.7 | 19.3 | 37.3 |
Normal Precipitation
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | 0.92 | 0.41 | 0.56 | 0.37 | 0.46 | 0.29 | 1.40 | 1.40 | 1.04 | 1.01 | 0.72 | 0.84 | 9.42 |
