October weather forecast and climate
Boise, ID

The golden fall season in Boise, Idaho
The golden fall season in Boise, Idaho

Weather in October

October, the same as September, in Boise, Idaho, is a moderate autumn month, with average temperature ranging between min 42.1°F (5.6°C) and max 59°F (15°C).

Temperature

In October, the average high-temperature declines considerably, from a warm 76.1°F (24.5°C) in September, to a moderate 59°F (15°C). In October, the average low-temperature is 42.1°F (5.6°C).

Humidity

The average relative humidity in Boise is 53%.

Rainfall

In October, the rain falls for 8.7 days. Throughout October, 1.02" (26mm) of precipitation is accumulated. In Boise, during the entire year, the rain falls for 116.8 days and collects up to 15.08" (383mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In October, the average length of the day in Boise is 11h.

Sunshine

The average sunshine in Boise, Idaho, is 7.9h.

UV index

The average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 3 in October transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in October in Boise?

In Boise, in October, the average high-temperature is 59°F (15°C), and the average low-temperature is 42.1°F (5.6°C).

What is the average humidity in October in Boise?

In Boise, the average relative humidity in October is 53%.

How much does it rain in Boise in October?

In Boise, in October, during 8.7 rainfall days, 1.02" (26mm) of precipitation is typically accumulated.

Does it snow in Boise in October?

In Boise, in October, it doesn't snow. In November, it regularly snows.

When it does not snow in Boise?

In Boise, Idaho, snow does not fall in May through October.

How many hours of daylight does Boise have in October?

In October, the average length of the day is 11h.

How long on average sun shines in October in Boise?

In October, the average sunshine in Boise is 7.9h.

What is the UV index intensity in October in Boise?

In Boise, the average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV rays.

Average temperature in October
Boise, ID

Average temperature in October - Boise, ID
  • Average high temperature in October: 59°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is December (34.7°F).

  • Average low temperature in October: 42.1°F

The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is December (23.2°F).

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Average pressure in October
Boise, ID

Average pressure in October - Boise, ID
  • Average pressure in October: 30.04"

The month with the highest atmospheric pressure is January (30.25").
The month with the lowest atmospheric pressure is June (29.9").

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Average wind speed in October
Boise, ID

Average wind speed in October - Boise, ID
  • Average wind speed in October: 5.5mph

The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is January (5.2mph).

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Average humidity in October
Boise, ID

Average humidity in October - Boise, ID
  • Average humidity in October: 53%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is July (30%).

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Average rainfall in October
Boise, ID

Average rainfall in October - Boise, ID
  • Average rainfall in October: 1.02"

The wettest month (with the highest rainfall) is March (2.2").
The driest month (with the least rainfall) is July (0.2").

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Average rainfall days in October
Boise, ID

Average rainfall days in October - Boise, ID
  • Average rainfall days in October: 8.7 days

The month with the highest number of rainy days is March (16.2 days).
The month with the least rainy days is July (4.5 days).

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Average snowfall in October
Boise, ID

Average snowfall in October - Boise, ID
  • Average snowfall in October: 0"

The month with the highest snowfall is December (6.65").
Months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in October
Boise, ID

Average snowfall days in October - Boise, ID
  • Average snowfall days in October: 0.2 days

The month with the highest number of snowfall days is December (9.2 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in October /
Average sunshine in October
Boise, ID

Average daylight in October / Average sunshine in October - Boise, ID
  • Average daylight in October: 11h

The month with the longest days is June (Average daylight: 15.4h).
The month with the shortest days is December (Average daylight: 9h).

  • Average sunshine in October: 7.9h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 5.5h).

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Average sunshine days in October
Boise, ID

Average sunshine days in October - Boise, ID
  • Average sunshine days in October: 20.1 days

The month with the most sunshine days is July (23.6 days).
The month with the least sunshine days is March (12.1 days).

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Average UV index in October
Boise, ID

Average UV index in October - Boise, ID
  • Average UV index in October: 3

The month with the highest UV index is July (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in October
Boise, ID

Average cloud cover in October - Boise, ID
  • Average cloud cover in October: 23

The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 8).

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Average visibility in October
Boise, ID

Average visibility in October - Boise, ID
  • Average visibility in October: 6mi

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

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