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Surprise, AZ Weather


Surprise, AZ climate is very hot during summer when temperatures tend to be in the 90's and cool during winter when temperatures tend to be in the 50's.

The warmest month of the year is July with an average maximum temperature of 99.99 degrees Fahrenheit, while the coldest month of the year is December with an average minimum temperature of 40.90 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 27 degrees Fahrenheit.

The annual average precipitation at Surprise is 9.03 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is February with an average rainfall of 1.15 Inches.

Weather Data

Current Conditions

(Updated: 11:55 AM MST TUE NOV 24 2009)

Fair Fair, 70°F Humidity: 8% Dewpoint: 6°F
Wind Speed: NE 9.2 MPH (8 KT) Heat Index: 70°F
Barometer: 30.11 in. Wind Chill: 70°F

Weather Forecast

(Generated: 3:21 AM MST TUE NOV 24 2009)
Hi: 74°F Today: Sunny. Highs 71 to 76. North wind 5 to 10 mph.
Lo: 44°F
Hi: 76°F Wednesday: Sunny. Highs 73 to 78. Northeast wind 5 to 10 mph.
Lo: 45°F
Hi: 79°F Thanksgiving day: Sunny. Highs 76 to 81. Northeast wind around 10 mph.
Lo: 46°F
Hi: 77°F Friday: Mostly clear. Lows in the lower 40s to lower 50s. Highs in the mid to upper 70s.
Lo: 49°F
Hi: 68°F Saturday: Partly cloudy and cooler. Lows in the upper 30s to upper 40s. Highs 65 to 70.
Lo: 40°F
Hi: 58°F Sunday: Partly cloudy and cooler. Lows in the mid 30s to mid 40s. Highs 55 to 60.
Lo: 40°F

Moon, Sunrise and Sunset

Waxing Gibbous Moon Moon Phase: Waxing Gibbous Moon Civil Twilight:
6:42 AM MST
Sunrise:
7:08 AM MST
Sunset:
5:22 PM MST
Civil Twilight:
5:49 PM MST

Normal Climate

Normal Temperatures

(YOUNGTOWN Weather station, 2.82 miles from Surprise)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max °F 68.0 72.5 77.8 86.4 95.3 105.0 107.6 106.1 101.1 90.2 76.7 68.2 87.9
Mean °F 54.7 58.6 63.3 70.4 79.3 88.5 93.5 92.2 86.2 74.7 61.8 54.6 73.2
Min °F 41.3 44.7 48.8 54.4 63.2 72.0 79.3 78.3 71.3 59.2 46.9 40.9 58.4

Normal Precipitation

(YOUNGTOWN Weather station, 2.82 miles from Surprise)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Inch 1.03 1.15 1.15 0.29 0.14 0.05 0.82 1.06 0.75 0.81 0.69 1.09 9.03