Zip 91104 (Pasadena, CA) Weather


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The most pleasant months of the year for the 91104 zip code are May, October and June. In the 91104 zip code, there are 6 comfortable months with high temperatures in the range of 70-85°. August is the hottest month for the 91104 zip code with an average high temperature of 89.0°, which ranks it as about average compared to other places in California. Any measurable snowfall is a rare occurance in the 91104 zip code. There are few days during the summer when the humidity becomes unpleasant.

Today's Weather - Pasadena, CA

5 PM PST

Partly Sunny

62°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
This AfternoonPartly Sunny63° / 50°SW 10 mph
FridayMostly Sunny70° / 49°WNW 5 to 15 mph
SaturdaySunny73° / 50°WNW 5 to 15 mph
SundayPatchy Fog then Mostly Sunny76° / 52°NW 5 to 15 mph
MondaySunny79° / 54°WSW 5 to 10 mph
TuesdaySunny79° / 54°S 5 to 10 mph
WednesdayPatchy Fog then Mostly Sunny79° / 54°S 5 to 15 mph

Weather Highlights

Summer High: the July high is around 87 degrees
Winter Low: the January low is 45
Rain: averages 22 inches of rain a year
Snow: averages 0 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Pasadena (zip 91104) area is 9.3 (10=best), which means it is more comfortable than most places in California.

9.3 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January68° 45°
February69° 47°
March71° 49°
April74° 52°
May77° 56°
June82° 60°
July87° 64°
August89° 64°
September87° 62°
October81° 57°
November73° 49°
December67° 44°
Hot, Freezing, Rainy, Snowy Days: Pasadena
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January0060
February0070
March1060
April2040
May2020
June4010
July10010
August13010
September11020
October5030
November1030
December0150

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

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My roommate and I recently moved into a local Pasadena/border Altadena neighborhood patroled by the Altadena Sheriff's Dept. While all interaction we've had w/ the  More

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