October weather forecast and climate
Pasadena, CA

Pasadena City Hall in California, with neon-lit paths and natural gardens, under a perfect blue night sky
Pasadena City Hall in California, with neon-lit paths and natural gardens, under a perfect blue night sky

Weather in October

October, the same as September, is another warm autumn month in Pasadena, California, with temperature in the range of an average high of 77.5°F (25.3°C) and an average low of 58.6°F (14.8°C).

Temperature

In Pasadena, California, the average high-temperature in October marginally drops, from 84.4°F (29.1°C) in September, to a still moderately hot 77.5°F (25.3°C). In Pasadena, the average low-temperature is 58.6°F (14.8°C).

Humidity

In Pasadena, the average relative humidity in October is 48%.

Rainfall

In Pasadena, during October, the rain falls for 2.8 days and regularly aggregates up to 0.24" (6mm) of precipitation. Throughout the year, there are 50.1 rainfall days, and 8.5" (216mm) of precipitation is accumulated.

Daylight

In Pasadena, the average length of the day is 11.3h.

Sunshine

In October, the average sunshine is 8.6h.

UV index

The average daily maximum UV index in Pasadena is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: In October, the average maximum UV index of 5 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in October in Pasadena?

In Pasadena, in October, the average high-temperature is 77.5°F (25.3°C), and the average low-temperature is 58.6°F (14.8°C).

What is the average humidity in October in Pasadena?

In October, the average relative humidity in Pasadena, California, is 48%.

How much does it rain in Pasadena in October?

In Pasadena, California, in October, during 2.8 rainfall days, 0.24" (6mm) of precipitation is typically accumulated.

What is the average length of the day in October in Pasadena?

The average length of the day in October is 11.3h.

How long on average sun shines in October in Pasadena?

In October, the average sunshine is 8.6h.

How high is the UV index in October in Pasadena?

The average daily maximum UV index in October in Pasadena, California, is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV rays.

Average temperature in October
Pasadena, CA

Average temperature in October - Pasadena, CA
  • Average high temperature in October: 77.5°F

The warmest month (with the highest average high temperature) is August (87.1°F).
The month with the lowest average high temperature is December (61.7°F).

  • Average low temperature in October: 58.6°F

The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is February (46.6°F).

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Average pressure in October
Pasadena, CA

Average pressure in October - Pasadena, CA
  • Average pressure in October: 29.95"

The month with the highest atmospheric pressure is January (30.11").
The month with the lowest atmospheric pressure is June (29.88").

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Average wind speed in October
Pasadena, CA

Average wind speed in October - Pasadena, CA
  • Average wind speed in October: 4.5mph

The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).

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Average humidity in October
Pasadena, CA

Average humidity in October - Pasadena, CA
  • Average humidity in October: 48%

The month with the highest relative humidity is June (58%).
The month with the lowest relative humidity is November (47%).

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Average rainfall in October
Pasadena, CA

Average rainfall in October - Pasadena, CA
  • Average rainfall in October: 0.24"

The wettest month (with the highest rainfall) is February (1.77").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in October
Pasadena, CA

Average rainfall days in October - Pasadena, CA
  • Average rainfall days in October: 2.8 days

The month with the highest number of rainy days is March (7.8 days).
The month with the least rainy days is June (1.1 days).

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Average daylight in October /
Average sunshine in October
Pasadena, CA

Average daylight in October / Average sunshine in October - Pasadena, CA
  • Average daylight in October: 11.3h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in October: 8.6h

Months with the most sunshine are June and July (Average sunshine: 12.1h).
Months with the least sunshine are January, February and December (Average sunshine: 6.9).

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Average sunshine days in October
Pasadena, CA

Average sunshine days in October - Pasadena, CA
  • Average sunshine days in October: 27.1 days

The month with the most sunshine days is June (27.5 days).
The month with the least sunshine days is February (21.5 days).

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Average UV index in October
Pasadena, CA

Average UV index in October - Pasadena, CA
  • Average UV index in October: 5

Months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in October
Pasadena, CA

Average cloud cover in October - Pasadena, CA
  • Average cloud cover in October: 9

Months with the most cloud cover are March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in October
Pasadena, CA

Average visibility in October - Pasadena, CA
  • Average visibility in October: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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