October weather forecast
Porthill, ID

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Weather in October

October, the same as September, in Porthill, Idaho, is a frosty autumn month, with an average temperature fluctuating between 31.5°F (-0.3°C) and 49.1°F (9.5°C).

Temperature

In October, the meteorological conditions markedly change with the average high-temperature descending from an enjoyable 65.8°F (18.8°C) in September to a frosty 49.1°F (9.5°C). An average low-temperature of 31.5°F (-0.3°C) is noted in Porthill during the month of October.

Humidity

The average relative humidity in October in Porthill is 77%.

Rainfall

In Porthill, during October, the rain falls for 13.4 days and regularly aggregates up to 1.93" (49mm) of precipitation. In Porthill, during the entire year, the rain falls for 157.1 days and collects up to 21.61" (549mm) of precipitation.

Snowfall

January through April, September through December are months with snowfall. In October, in Porthill, it is snowing for 1.5 days. Throughout October, 0.75" (19mm) of snow is accumulated. In Porthill, during the entire year, snow falls for 70.6 days and aggregates up to 41.77" (1061mm) of snow.

Daylight

In Porthill, the average length of the day in October is 10h and 46min.
On the first day of October in Porthill, sunrise is at 7:46 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 8:32 am and sunset at 6:26 pm MDT.

Sunshine

In October, the average sunshine is 6.3h.

UV index

In October, the average daily maximum UV index in Porthill is 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 2 during October morphs into the following directions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. 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. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Porthill in October?

In Porthill, 49.1°F (9.5°C) is the average high-temperature and 31.5°F (-0.3°C) is the average low-temperature during October.

What is the average humidity in October in Porthill?

In Porthill, the average relative humidity in October is 77%.

How much does it rain in Porthill in October?

In Porthill, in October, it is raining for 13.4 days, with typically 1.93" (49mm) of accumulated precipitation.

How many days does it snow in October in Porthill?

In Porthill, during October, snow falls for 1.5 days and regularly aggregates up to 0.75" (19mm) of snow.

How many hours of daylight does Porthill have in October?

In October, the average day length in Porthill, Idaho, is 10h and 46min.

What time are sunrise and sunset in October in Porthill?

On the first day of October in Porthill, sunrise is at 7:46 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 8:32 am and sunset at 6:26 pm MDT.

How many hours of sunshine does Porthill have in October?

In Porthill, the average sunshine duration in October is 6.3h.

What is the UV index intensity in October in Porthill?

In October, the average daily maximum UV index in Porthill, Idaho, is 2. A UV Index value of 2, and less, symbolizes a low health threat from exposure to the Sun's 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
Porthill, ID

Average temperature in October - Porthill, ID
  • Average high temperature in October: 49.1°F

The warmest month (with the highest average high temperature) is August (76.3°F).
The month with the lowest average high temperature is December (27.3°F).

  • Average low temperature in October: 31.5°F

The month with the highest average low temperature is August (47.7°F).
The coldest months (with the lowest average low temperature) are January and December (16.3°F).

Average pressure in October
Porthill, ID

Average pressure in October - Porthill, ID
  • Average pressure in October: 30.05"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in October
Porthill, ID

Average wind speed in October - Porthill, ID
  • Average wind speed in October: 3.7mph

The windiest month (with the highest average wind speed) is June (4.3mph).
The calmest month (with the lowest average wind speed) is December (3.5mph).

Average humidity in October
Porthill, ID

Average humidity in October - Porthill, ID
  • Average humidity in October: 77%

The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (55%).

Average rainfall in October
Porthill, ID

Average rainfall in October - Porthill, ID
  • Average rainfall in October: 1.93"

The wettest month (with the highest rainfall) is December (2.76").
The driest month (with the least rainfall) is August (0.43").

Average rainfall days in October
Porthill, ID

Average rainfall days in October - Porthill, ID
  • Average rainfall days in October: 13.4 days

The month with the highest number of rainy days is April (19.7 days).
The month with the least rainy days is August (6.5 days).

Average snowfall in October
Porthill, ID

Average snowfall in October - Porthill, ID
  • Average snowfall in October: 0.75"

The month with the highest snowfall is January (11.02").
The months with the least snowfall are May, June, July and August (0").

Average snowfall days in October
Porthill, ID

Average snowfall days in October - Porthill, ID
  • Average snowfall days in October: 1.5 days

The month with the highest number of snowfall days is December (17.4 days).
The months with the least snowfall days are May, June, July and August (0 days).

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

Average daylight in October / Average sunshine in October - Porthill, ID
  • Average daylight in October: 10h and 5min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in October: 6h and 2min

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in October
Porthill, ID

Average sunshine days in October - Porthill, ID
  • Average sunshine days in October: 15.5 days

The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is March (7.7 days).

Average UV index in October
Porthill, ID

Average UV index in October - Porthill, ID
  • Average UV index in October: 2

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in October
Porthill, ID

Average cloud cover in October - Porthill, ID
  • Average cloud cover in October: 40

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 15).

Average visibility in October
Porthill, ID

Average visibility in October - Porthill, ID
  • Average visibility in October: 5mi

The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).

Porthill, Idaho, USA

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