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Climate - Pasadena (California)


Average weather, temperature, rainfall, sunshine hours

Flag - United States

Pasadena, where it's located




The climate of Pasadena is subtropical, with very mild, relatively rainy winters and hot, sunny summers.
The city is located northeast of Los Angeles, at 260 meters (855 ft), in a position more distant from the ocean, and therefore warmer in summer. On the hottest days of the year, which can also occur in September, the temperature can exceed 40 °C (104 °F). This happens when the Santa Ana winds blow from the deserts of Nevada. In May and June, the so-called "June Gloom" can occur, the fog or a cloud cover coming from the ocean.
Winter is very mild, although sometimes it can get a bit cold at night. Snow is extremely rare, although it snowed in 1949.
The average temperature of the coldest month (December) is of 13.9 °C (57 °F), that of the warmest month (August) is of 25.6 °C (78 °F). Here are the average temperatures.
Pasadena - Average temperatures
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Min (°C)991012141618181714118
Max (°C)202122242629323332282320
Min (°F)484850545761646463575246
Max (°F)687072757984909190827368

Precipitation amounts to 540 millimeters (21.3 inches) per year: so, it is at an intermediate level. Precipitation is more abundant than in Los Angeles, due to its proximity to the San Gabriel Mountains. It ranges from 0 mm (0 in) in the driest month (July) to 130 mm (5.1 in) in the wettest (February). Here is the average precipitation.
Pasadena - Average precipitation
MonthJanFebMarAprMayJunJulAugSepOctNovDecYear
Prec.(mm)11513085351050510254080540
Prec.(in)4.55.13.31.40.40.200.20.411.63.121.3
Days78632210133642

On average, there are around 3,465 sunshine hours per year. Therefore, the sun shines very often. Here are the average sunshine hours per day.
Pasadena - Sunshine
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Hours889101011121210987

Pasadena

Best Time


The best time to visit Pasadena is spring, in April and May, in fact, it is a mild to pleasantly warm and sunny period, and with a very low risk of hot days. Autumn, in October and November, is generally a good season as well, although the Santa Ana winds are quite common, and the first rains can fall, especially in November.

Back to California.



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