Arroyo Grande, CA Weather

Arroyo Grande, CA climate is mild during summer when temperatures tend to be in the 60's and cool during winter when temperatures tend to be in the 50's.

The warmest month of the year is September with an average maximum temperature of 73.00 degrees Fahrenheit, while the coldest month of the year is December with an average minimum temperature of 42.40 degrees Fahrenheit.

Temperature variations between night and day tend to be fairly limited during summer with a difference that can reach 19 degrees Fahrenheit, and moderate during winter with an average difference of 22 degrees Fahrenheit.

The annual average precipitation at Arroyo Grande is 17.79 Inches. Winter months tend to be wetter than summer months. The wettest month of the year is February with an average rainfall of 3.87 Inches.

Weather Data

Current Conditions

(Updated: 1:56 AM PST SUN NOV 22 2009)

Fair, 46°F	Humidity: 68%	Dewpoint: 36°F
	Wind Speed: CALM	Heat Index: 46°F
	Barometer: 30.07 in.	Wind Chill: 46°F

Weather Forecast

(Generated: 7:00 PM PST SAT NOV 21 2009)

		Tonight: Mostly clear. Breezy. Lows in the 30s and 40s. Areas of north to northeast winds 15 to 25 mph below passes and canyons.

	Hi: 66°F	Sunday: Mostly sunny. Breezy. Highs in the 60s to lower 70s. Areas of north to northeast winds 15 to 25 mph below passes and canyons in the morning...Becoming northwest in the afternoon.
	Lo: 41°F
	Hi: 70°F	Monday: Sunny. Highs in the mid 60s to mid 70s. North winds around 15 mph.
	Lo: 45°F
	Hi: 71°F	Tuesday: Clear. Highs in the upper 60s to around 80. Lows in the upper 30s to lower 50s.
	Lo: 45°F
	Hi: 71°F	Wednesday: Clear. Highs in the upper 60s to around 80. Lows in the upper 30s to lower 50s.
	Lo: 45°F
	Hi: 71°F	Thursday: Clear. Highs in the upper 60s to around 80. Lows in the upper 30s to lower 50s.
	Lo: 45°F
	Hi: 71°F	Friday: Clear. Highs in the upper 60s to around 80. Lows in the upper 30s to lower 50s.
	Lo: 45°F

Moon, Sunrise and Sunset

	Moon Phase: Waxing Crescent Moon	Civil Twilight: 6:16 AM PST	Sunrise: 6:43 AM PST
		Sunset: 4:52 PM PST	Civil Twilight: 5:20 PM PST

Normal Climate

Normal Temperatures

(PISMO BEACH Weather station, 6.22 miles from Arroyo Grande)

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Max °F	64.6	65.8	66.6	69.3	69.6	71.1	71.2	72.3	73.0	72.6	68.9	65.5	69.2
Mean °F	53.6	55.0	55.6	57.6	58.5	60.8	61.9	62.8	63.1	61.7	57.4	54.0	58.5
Min °F	42.6	44.1	44.6	45.9	47.3	50.5	52.5	53.3	53.1	50.7	45.9	42.4	47.7

Normal Precipitation