National City, CA Weather

National City, 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 September with an average maximum temperature of 9.99 degrees Fahrenheit, while the coldest month of the year is December with an average minimum temperature of 9.99 degrees Fahrenheit.

Temperature variations between night and day tend to be fairly limited during summer with a difference that can reach 13 degrees Fahrenheit, and moderate during winter with an average difference of 22 degrees Fahrenheit.

The annual average precipitation at National City is 9.95 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is March with an average rainfall of 2.07 Inches.

Weather Data

Normal Climate

Normal Temperatures

(CHULA VISTA Weather station, 3.49 miles from National City)

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Max °F	68.5	68.8	68.4	70.2	70.3	72.6	76.1	78.3	78.7	76.4	72.2	68.8	72.4
Mean °F	57.3	58.3	59.2	61.5	63.7	66.5	70.1	71.8	71.2	67.1	61.0	57.2	63.7
Min °F	46.1	47.7	50.0	52.8	57.1	60.3	64.0	65.3	63.7	57.7	49.8	45.5	55.0

Normal Precipitation