What’s the climate like in Pasadena?
The current climate of Pasadena features average monthly temperatures ranging from highs of 29°C during the day to lows of 20°C. The average yearly temperature is around 25°C. At night, temperatures in the colder months average around 9°C and in the warmer months around 20°C.
The highest temperature recorded in Pasadena in recent years was 43°C in September 2020. The lowest daytime temperature recorded was 9°C in February 2023.
On average, Pasadena receives 341 mm of precipitation each year. For comparison, London gets 701 mm of precipitation annually.
Best time to visit Pasadena?
The best time to visit Pasadena for sunny weather is January through December. During this period, you'll have good temperatures and not too much rain, making it a great time to visit Pasadena.
Climate Table of Pasadena
The climate table of Pasadena shows the average temperatures, precipitation, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 20 | 20 | 21 | 23 | 22 | 26 | 29 | 29 | 29 | 27 | 24 | 20 |
| Temp. min (°C) | 10 | 10 | 12 | 14 | 15 | 17 | 20 | 20 | 19 | 17 | 13 | 10 |
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| Precipitation (mm) | 108 | 60 | 50 | 10 | 7,5 | 0,2 | 1,2 | 6,8 | 6,0 | 5,4 | 17 | 68 |
| UV Index | 5 | 6 | 7 | 8 | 8 | 9 | 9 | 8 | 7 | 6 | 5 | 5 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
- Average yearly temperature: 25°C
- Highest temperature: 29°C in July, August and September
- Lowest temperature: 20°C in January, February and December
- Precipitation: 341 mm per year, averaging 28 mm per month
- Driest months: 0,2 mm in June, 1,2 mm in July and 5,4 mm in October
- Wettest months: 108 mm in January, 68 mm in December and 60 mm in February
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Table of Contents
Average Temperature per Month in Pasadena
This graph shows the average maximum temperatures per month in Pasadena, California. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Pasadena
This graph shows how much precipitation Pasadena, California, gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average UV Index per Month in Pasadena
This graph shows the average UV index per month in Pasadena, California. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Pasadena
This graph shows the average yearly temperature in Pasadena, California. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Pasadena
This chart shows the total yearly precipitation in Pasadena, California, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
Weather experiences in Pasadena
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Average Weather in Pasadena by Month
Click on a month below to see detailed weather info for Pasadena. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
