October weather forecast
Alta, CA

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Weather in October

October, like September, in Alta, California, is another enjoyable autumn month, with an average temperature fluctuating between 64.2°F (17.9°C) and 42.1°F (5.6°C).

Temperature

Arrival of October comes with a reduction in the average high-temperature, falling from a warm 76.6°F (24.8°C) in September to a refreshing 64.2°F (17.9°C). Despite the significant gap from daytime peaks, Alta experiences an average low-temperature of 42.1°F (5.6°C) in October.

Humidity

In Alta, the average relative humidity in October is 50%.

Rainfall

In Alta, in October, it is raining for 4.5 days, with typically 1.34" (34mm) of accumulated precipitation. In Alta, during the entire year, the rain falls for 72.9 days and collects up to 36.06" (916mm) of precipitation.

Snowfall

Months with snowfall are January through June, September through December. In October, it is snowing for 0.9 days. Throughout October, 1.22" (31mm) of snow is accumulated. Throughout the year, there are 53.3 snowfall days, and 151.57" (3850mm) of snow is accumulated.

Daylight

The average length of the day in October is 11h and 9min.
On the first day of October, sunrise is at 7:00 am and sunset at 6:45 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 6:02 pm PDT.

Sunshine

In Alta, the average sunshine in October is 7.1h.

UV index

The average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 3 during October translates into the following guidance:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are October temperatures?

The average high-temperature and low-temperature during October are 64.2°F (17.9°C) and 42.1°F (5.6°C) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in August is appraised at 82.4°F (28°C).

What is the average humidity in October?

In October, the average relative humidity is 50%.

How many days does it rain in October?

In October, the rain falls for 4.5 days. Throughout October, 1.34" (34mm) of precipitation is accumulated.

How much does it snow in October?

In Alta, in October, snow falls for 0.9 days, with typically accumulated 1.22" (31mm) of snow.

How many hours of daylight does Alta have in October?

The average day length in October is 11h and 9min.

What time are sunrise and sunset in October?

In October, on the first day of the month, sunrise is at 7:00 am and sunset at 6:45 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 6:02 pm PDT.

How many hours of sunshine does Alta have in October?

The average sunshine duration in October is 7.1h.

What is the UV index intensity in October?

In October, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Alta, CA

Average temperature in October - Alta, CA
  • Average high temperature in October: 64.2°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is December (43.7°F).

  • Average low temperature in October: 42.1°F

The month with the highest average low temperature is July (52.9°F).
The coldest month (with the lowest average low temperature) is December (29.1°F).

Average pressure in October
Alta, CA

Average pressure in October - Alta, CA
  • Average pressure in October: 30.01"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in October
Alta, CA

Average wind speed in October - Alta, CA
  • Average wind speed in October: 5.7mph

The windiest month (with the highest average wind speed) is February (6.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in October
Alta, CA

Average humidity in October - Alta, CA
  • Average humidity in October: 50%

The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is July (39%).

Average rainfall in October
Alta, CA

Average rainfall in October - Alta, CA
  • Average rainfall in October: 1.34"

The wettest month (with the highest rainfall) is March (7.09").
The driest month (with the least rainfall) is July (0.08").

Average rainfall days in October
Alta, CA

Average rainfall days in October - Alta, CA
  • Average rainfall days in October: 4.5 days

The month with the highest number of rainy days is April (11 days).
The month with the least rainy days is July (1.8 days).

Average snowfall in October
Alta, CA

Average snowfall in October - Alta, CA
  • Average snowfall in October: 1.22"

The month with the highest snowfall is March (37.6").
The months with the least snowfall are July and August (0").

Average snowfall days in October
Alta, CA

Average snowfall days in October - Alta, CA
  • Average snowfall days in October: 0.9 days

The month with the highest number of snowfall days is March (11.7 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in October / Average sunshine in October - Alta, CA
  • Average daylight in October: 11h and 1min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in October: 7h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).

Average sunshine days in October
Alta, CA

Average sunshine days in October - Alta, CA
  • Average sunshine days in October: 25.4 days

The month with the most sunshine days is July (28 days).
The month with the least sunshine days is March (12.6 days).

Average UV index in October
Alta, CA

Average UV index in October - Alta, CA
  • Average UV index in October: 3

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in October
Alta, CA

Average cloud cover in October - Alta, CA
  • Average cloud cover in October: 17

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 5).

Average visibility in October
Alta, CA

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

The months with the highest visibility are May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March and April (5mi).

Alta, California, USA

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