Fullerton, CA Weather

Fullerton, 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 85.60 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 45.20 degrees Fahrenheit.

Temperature variations between night and day tend to be moderate during summer with a difference that can reach 22 degrees Fahrenheit, and moderate during winter with an average difference of 23 degrees Fahrenheit.

The annual average precipitation at Fullerton is 11.23 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is February with an average rainfall of 2.86 Inches.

Weather Data

Current Conditions

(Updated: 3:53 AM PST SAT NOV 21 2009)

Fog And Mist, 49°F	Humidity: 90%	Dewpoint: 46°F
	Wind Speed: CALM	Heat Index: 49°F
	Barometer: 29.96 in.	Wind Chill: 49°F

Weather Forecast

(Generated: 3:30 AM PST SAT NOV 21 2009)

	Hi: 66°F	Today: Partly cloudy. Patchy dense fog in the morning. Visibility one quarter mile or less at Times in the morning. Highs 63 to 68. Light winds.
	Lo: 50°F
	Hi: 71°F	Sunday: Mostly sunny. Patchy fog in the morning. Highs around 66 near the coast to 68 to 73 inland. Light winds.
	Lo: 51°F
	Hi: 76°F	Monday: Sunny. Highs 66 to 71 near the coast to 73 to 78 inland. Light winds.
	Lo: 52°F
	Hi: 78°F	Tuesday: Sunny. Highs 68 to 73 near the coast to 75 to 80 inland.
	Lo: 52°F
	Hi: 79°F	Wednesday: Sunny. Highs 69 to 74 near the coast to 76 to 81 inland.
	Lo: 53°F
	Hi: 79°F	Thanksgiving day: Sunny. Highs around 72 near the coast to 76 to 81 inland.
	Lo: 53°F

Moon, Sunrise and Sunset

	Moon Phase: Waxing Crescent Moon	Civil Twilight: 6:02 AM PST	Sunrise: 6:29 AM PST
		Sunset: 4:45 PM PST	Civil Twilight: 5:12 PM PST

Normal Climate

Normal Temperatures

(ANAHEIM Weather station, 4.27 miles from Fullerton)

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Max °F	68.6	69.1	69.6	72.5	75.3	79.0	84.0	85.6	84.6	80.2	74.1	69.6	76.0
Mean °F	56.9	57.9	59.0	62.0	65.5	69.4	73.2	74.5	73.2	68.3	62.3	57.8	65.0
Min °F	45.2	46.6	48.4	51.4	55.7	59.8	62.4	63.4	61.7	56.3	50.5	45.9	53.9

Normal Precipitation