The U.S. Weather Bureau describes San Diego's weather as the most nearly perfect in America. The average year-round high temperature is 70ºF (21ºC). The yearly rainfall is light, averaging only 9.45 inches (24 cm), with most of it falling during the months of December, January and February. San Diego's warm and sunny weather is one of its main attractions. Winters are mild with temperatures averaging about 58 degrees Fahrenheit (14 degrees Celsius). Summer temperatures range between 70 and 85 degrees Fahrenheit (22 and 30 degrees Celsius).

MONTH	FAHRENHEIT		CELSIUS
	High	Low	High	Low
January	65	45	18	7
February	66	48	19	9
March	66	50	19	10
April	66	53	19	11
May	69	57	20	14
June	71	59	22	15
July	75	63	24	17
August	77	65	25	18
September	76	63	25	17
October	73	58	23	14
November	69	51	20	11
December	66	47	19	8

	San Diego	National Average
Annual days with some precipitation	41	110
Annual days with mostly sun	267	213
Annual snowfall (inches)	0	24.2
Annual days < 32° F	0	88.0
Annual days > 90° F	3	37.9
Average high temp in July °F	77.3°	86.8°
Average low temp in January °F	45.8°	26.5°

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