October weather forecast and climate
Fontana, CA

Weather in October

October, the same as September, is another warm autumn month in Fontana, California, with average temperature ranging between max 78.8°F (26°C) and min 57.2°F (14°C).

Temperature

In Fontana, the average high-temperature decreases, from a hot 88.3°F (31.3°C) in September, to a warm 78.8°F (26°C). In Fontana, in October, the average low-temperature is 57.2°F (14°C).

Humidity

The average relative humidity in Fontana, California, is 44%.

Rainfall

In Fontana, in October, it is raining for 2.2 days, with typically 0.16" (4mm) of accumulated precipitation. Throughout the year, there are 48.1 rainfall days, and 6.89" (175mm) of precipitation is accumulated.

Snowfall

January, March through December are months without snowfall in Fontana.

Daylight

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

Sunshine

The average sunshine in October is 9h.

UV index

The average daily maximum UV index in October is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 5 in October transform into the following instructions:
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 Fontana?

The average high-temperature, in October, in Fontana, California, is 78.8°F (26°C), while the average low-temperature is 57.2°F (14°C).

What is the average humidity in October in Fontana?

The average relative humidity in October is 44%.

How many days does it rain in October in Fontana?

In Fontana, during October, the rain falls for 2.2 days and regularly aggregates up to 0.16" (4mm) of precipitation.

When it does not snow in Fontana?

In Fontana snow does not fall in January, March through December.

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

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

How many hours of sunshine does Fontana have in October?

In October, the average sunshine is 9h.

What is the UV index reading in October in Fontana?

The average daily maximum UV index in October in Fontana is 5. A UV Index reading of 3 to 5 represents a medium health risk from the exposure to the Sun's UV rays.

Average temperature in October
Fontana, CA

Average temperature in October - Fontana, CA
  • Average high temperature in October: 78.8°F

The warmest month (with the highest average high temperature) is August (92.1°F).
The month with the lowest average high temperature is December (60.8°F).

  • Average low temperature in October: 57.2°F

The month with the highest average low temperature is August (67.3°F).
The coldest months (with the lowest average low temperature) are February and December (44.2°F).

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Average pressure in October
Fontana, CA

Average pressure in October - Fontana, CA
  • Average pressure in October: 29.94"

The month with the highest atmospheric pressure is January (30.1").
The month with the lowest atmospheric pressure is June (29.85").

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Average wind speed in October
Fontana, CA

Average wind speed in October - Fontana, CA
  • Average wind speed in October: 4.9mph

The windiest months (with the highest average wind speed) are April and May (6mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).

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Average humidity in October
Fontana, CA

Average humidity in October - Fontana, CA
  • Average humidity in October: 44%

Months with the highest relative humidity are February, March and May (52%).
The month with the lowest relative humidity is August (39%).

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Average rainfall in October
Fontana, CA

Average rainfall in October - Fontana, CA
  • Average rainfall in October: 0.16"

The wettest month (with the highest rainfall) is February (1.57").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in October
Fontana, CA

Average rainfall days in October - Fontana, CA
  • Average rainfall days in October: 2.2 days

The month with the highest number of rainy days is March (7.5 days).
The month with the least rainy days is June (1.2 days).

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Average snowfall days in October
Fontana, CA

Average snowfall days in October - Fontana, CA
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is February (0.1 days).
Months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

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

Average daylight in October / Average sunshine in October - Fontana, 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: 9h

Months with the most sunshine are June, July and August (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6.9h).

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Average sunshine days in October
Fontana, CA

Average sunshine days in October - Fontana, CA
  • Average sunshine days in October: 28 days

The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (21.1 days).

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Average UV index in October
Fontana, CA

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

Months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in October
Fontana, CA

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

Months with the most cloud cover are February, March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 4).

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Average visibility in October
Fontana, CA

Average visibility in October - Fontana, 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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