October weather forecast
Rosemont, CA

Weather in October

October, like September, in Rosemont, California, is a moderately hot autumn month, with temperature in the range of an average high of 76.1°F (24.5°C) and an average low of 53.6°F (12°C).

Temperature

In October, the average high-temperature decreases, from a hot 88.3°F (31.3°C) in September, to a warm 76.1°F (24.5°C). In Rosemont, California,, the average low-temperature is 53.6°F (12°C).

Humidity

In Rosemont, the average relative humidity is 49%.

Rainfall

In October, the rain falls for 3.5 days. Throughout October, 0.79" (20mm) of precipitation is accumulated. Throughout the year, in Rosemont, there are 70.5 rainfall days, and 15.04" (382mm) of precipitation is accumulated.

Daylight

In October, the average length of the day in Rosemont is 11.2h.

Sunshine

In Rosemont, the average sunshine in October is 7.2h.

UV index

The average daily maximum UV index in October is 4. A UV Index reading of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 4 interpret into the following advice:
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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the average humidity in October in Rosemont?

In Rosemont, California, the average relative humidity in October is 49%.

How much does it rain in Rosemont in October?

In Rosemont, in October, during 3.5 rainfall days, 0.79" (20mm) of precipitation is typically accumulated.

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

The average length of the day in October is 11.2h.

How many hours of sunshine does Rosemont have in October?

In Rosemont, the average sunshine in October is 7.2h.

What is the UV index reading in October in Rosemont?

In October, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in October
Rosemont, CA

Average temperature in October - Rosemont, CA
  • Average high temperature in October: 76.1°F

The warmest month (with the highest average high temperature) is July (94.5°F).
The month with the lowest average high temperature is December (54.3°F).

  • Average low temperature in October: 53.6°F

The month with the highest average low temperature is August (59.9°F).
The coldest months (with the lowest average low temperature) are January and December (40.8°F).

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Average pressure in October
Rosemont, CA

Average pressure in October - Rosemont, CA
  • Average pressure in October: 29.99"

The month with the highest atmospheric pressure is January (30.15").
The month with the lowest atmospheric pressure is June (29.9").

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Average wind speed in October
Rosemont, CA

Average wind speed in October - Rosemont, CA
  • Average wind speed in October: 4.4mph

The windiest month (with the highest average wind speed) is February (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.1mph).

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Average humidity in October
Rosemont, CA

Average humidity in October - Rosemont, CA
  • Average humidity in October: 49%

The month with the highest relative humidity is March (75%).
Months with the lowest relative humidity are July and September (44%).

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Average rainfall in October
Rosemont, CA

Average rainfall in October - Rosemont, CA
  • Average rainfall in October: 0.79"

The wettest month (with the highest rainfall) is March (2.72").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in October
Rosemont, CA

Average rainfall days in October - Rosemont, CA
  • Average rainfall days in October: 3.5 days

The month with the highest number of rainy days is March (12.6 days).
The month with the least rainy days is July (1 days).

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

Average daylight in October / Average sunshine in October - Rosemont, CA
  • Average daylight in October: 11.2h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in October: 7.2h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 5.8h).

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Average sunshine days in October
Rosemont, CA

Average sunshine days in October - Rosemont, CA
  • Average sunshine days in October: 26.7 days

The month with the most sunshine days is July (29.7 days).
The month with the least sunshine days is March (17.6 days).

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Average UV index in October
Rosemont, CA

Average UV index in October - Rosemont, CA
  • Average UV index in October: 4

Months with the highest UV index are June and July (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in October
Rosemont, CA

Average cloud cover in October - Rosemont, CA
  • Average cloud cover in October: 15

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 4).

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Average visibility in October
Rosemont, CA

Average visibility in October - Rosemont, 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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