Zip 91101 (Pasadena, CA) Climate

Pasadena, CA in zip code 91101 is located in sunny Southern California and enjoys an average of 283 days of sunshine each year. The climate is generally dry and warm with temperatures ranging from the mid-50s to the high-90s during the summer months. Winters tend to be mild with temperatures rarely dropping below 40 degrees Fahrenheit. Rainfall averages around 15 inches per year, making it one of the drier cities in California. The area has low humidity and a moderate amount of wind throughout most of the year, allowing it to stay comfortable no matter what time of year it is.

Pasadena (zip 91101), California gets 21 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Pasadena (zip 91101) averages 0 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 292 sunny days per year in Pasadena (zip 91101). The US average is 205 sunny days.

Pasadena (zip 91101) gets some kind of precipitation, on average, 38 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 87 degrees
Winter Low: the January low is 45
Rain: averages 21 inches of rain a year
Snow: averages 0 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 91101 zip code is 9.1 (10=best), which means it is one of the most pleasant places in California.

9.3 Summer - 8.7 Winter

June, May and October are the most pleasant months in the 91101 zip code, while January and February are the least comfortable months.

Climate	Pasadena, California	United States
	20.6 in.	38.1 in.
	0.0 in.	27.8 in.
	37.7 days	106.2 days
	292 days	205 days
	87.3°	85.8°
	45.1°	21.7°
	9.1	7
	6.2	4.3
	801 ft.	2443 ft.

Climate

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.

August is the hottest month for the 91101 zip code with an average high temperature of 88.9°, which ranks it as about average compared to other places in California. In the 91101 zip code, there are 6 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 91101 zip code are May, October and June.

In the 91101 zip code, there are 47.9 days annually when the high temperature is over 90°, which is about average compared to other places in California.

December has the coldest nighttime temperatures for the 91101 zip code with an average of 44.3°. This is warmer than most places in California.

In the 91101 zip code, there are 1.0 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In the 91101 zip code, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.

Humidity in the 91101 zip code is generally quite low and comfortable. There are few days during the summer when the humidity becomes unpleasant. The most humid months (but still comfortable) are July, August and June.

February is the wettest month in the 91101 zip code with 5.1 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 60% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 20.6 inches in the 91101 zip code means that it is about average compared to other places in California.

February is the rainiest month in the 91101 zip code with 6.7 days of rain, and July is the driest month with only 0.4 rainy days. There are 37.7 rainy days annually in the 91101 zip code, which is less rainy than most places in California. The rainiest season is Spring when it rains 47% of the time and the driest is Autumn with only a 5% chance of a rainy day.

There is rarely any recorded snowfall in the 91101 zip code, ranking it as one of the least snowy places in California. Any measurable snowfall is a rare occurance in the 91101 zip code.

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Joseph · Pasadena, CA

It's not what you think

Over 4 years ago

Most of what you may read is about the past. It's October 2020 right now. Pasadena, as in all of L.A. has no middle class. Either you're living in a multi-millionaire More

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Bp · Pasadena, CA

Pasadena is a great place to live

Over 13 years ago

Pasadena is a great place to live--everything you could possibly want is within striking distance. Dining, bars, movie theaters, grocery stores, and more are all within More

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