Pasadena Climate

Average Temparature and Precipitation for Pasadena

Month

 Average High
(F / C)

Average Low
(F / C)

Average Precipitation (Inches)

January

68 / 20

43 / 6

3.8

February

70 / 21

45 / 7

3.9

March

70 / 21

46 / 8

3.5

April

74 / 23

49 / 9

1.4

May

77 / 25

53 / 12

0.3

June

82 / 28

56 / 13

0.1

July

89 / 32

60 / 16

0.0

August

89 / 32

61 / 16

0.2

September

87 / 31

60 / 16

0.6

October

82 / 28

54 / 12

0.5

November

73 / 23

48 / 9

2.6

December

67 / 19

43 / 6

2.5

Pasadena has a Mediterranean climate, with typically hotter summers and slightly cooler winters than nearby coastal areas. Its location relative to the San Gabriel mountains allows the orographic lift to tac on several more inches of rainfall per year than nearby areas.

The average temperature for the year in Pasadena is 63.9°F (17.7°C). The warmest month, on average, is August with an average temperature of 74.7°F (23.7°C). The coolest month on average is January, with an average temperature of 54.4°F (12.4°C).

The highest recorded temperature in Pasadena is 113.0°F (45°C), which was recorded in June. The lowest recorded temperature in Pasadena is 17.0°F (-8.3°C), which was recorded in February.

The average amount of precipitation for the year in Pasadena is 20.4″ (518.2 mm). The month with the most precipitation on average is February with 4.6″ (116.8 mm) of precipitation. The month with the least precipitation on average is July with an average of 0.0″ (0 mm).