October weather forecast
Greenhorn, OR

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Weather in October

October, like September, is a moderate autumn month in Greenhorn, Oregon, with an average temperature fluctuating between 56.3°F (13.5°C) and 35.6°F (2°C).

Temperature

The arrival of October is marked by a notable decrease in high-temperatures, falling from an agreeable 71.2°F (21.8°C) in September to a refreshing 56.3°F (13.5°C). In October, the recorded average low-temperature in Greenhorn is an icy 35.6°F (2°C).

Humidity

In October, the average relative humidity is 63%.

Rainfall

In Greenhorn, in October, during 11.5 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. Throughout the year, there are 127.7 rainfall days, and 17.09" (434mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. In Greenhorn, during October, snow falls for 1.3 days and regularly aggregates up to 0.55" (14mm) of snow. In Greenhorn, during the entire year, snow falls for 62.5 days and aggregates up to 39.17" (995mm) of snow.

Daylight

In October, the average length of the day is 10h and 57min.
On the first day of the month, sunrise is at 6:52 am and sunset at 6:33 pm. On the last day of October, in Greenhorn, sunrise is at 7:31 am and sunset at 5:43 pm PDT.

Sunshine

The average sunshine in October is 7.1h.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Greenhorn. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.
Note: In October, a daily maximum UV index of 2 leads to the following instructions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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Frequently asked questions

What are October temperatures in Greenhorn?

The high-temperature, in October, in Greenhorn, records 56.3°F (13.5°C), while the low-temperature is 35.6°F (2°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in August is evaluated at 80.6°F (27°C).

What is the average humidity in October in Greenhorn?

In Greenhorn, Oregon, the average relative humidity in October is 63%.

How many days does it rain in October in Greenhorn?

In October, in Greenhorn, the rain falls for 11.5 days. Throughout October, 1.3" (33mm) of precipitation is accumulated.

How many days does it snow in October in Greenhorn?

In Greenhorn, Oregon, during October, snow falls for 1.3 days and regularly aggregates up to 0.55" (14mm) of snow.

How many hours of daylight does Greenhorn have in October?

In Greenhorn, the average day length in October is 10h and 57min.

When is the sunrise / sunset in October in Greenhorn?

In October, on the first day of the month, sunrise is at 6:52 am and sunset at 6:33 pm. On the last day of the month, in Greenhorn, sunrise is at 7:31 am and sunset at 5:43 pm PDT.

How many hours of sunshine does Greenhorn have in October?

The average sunshine duration in October in Greenhorn is 7.1h.

When is the lowest UV index in Greenhorn?

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in October in Greenhorn?

In Greenhorn, the average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a low health risk 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
Greenhorn, OR

Average temperature in October - Greenhorn, OR
  • Average high temperature in October: 56.3°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (33.4°F).

  • Average low temperature in October: 35.6°F

The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is December (19.6°F).

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Average pressure in October
Greenhorn, OR

Average pressure in October - Greenhorn, OR
  • Average pressure in October: 30.05"Hg

The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).

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Average wind speed in October
Greenhorn, OR

Average wind speed in October - Greenhorn, OR
  • Average wind speed in October: 5.3mph

The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are August and September (5mph).

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Average humidity in October
Greenhorn, OR

Average humidity in October - Greenhorn, OR
  • Average humidity in October: 63%

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is August (42%).

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Average rainfall in October
Greenhorn, OR

Average rainfall in October - Greenhorn, OR
  • Average rainfall in October: 1.3"

The wettest month (with the highest rainfall) is February (2.28").
The driest month (with the least rainfall) is July (0.24").

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Average rainfall days in October
Greenhorn, OR

Average rainfall days in October - Greenhorn, OR
  • Average rainfall days in October: 11.5 days

The month with the highest number of rainy days is March (17.3 days).
The month with the least rainy days is August (3.3 days).

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Average snowfall in October
Greenhorn, OR

Average snowfall in October - Greenhorn, OR
  • Average snowfall in October: 0.55"

The month with the highest snowfall is February (10.31").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in October
Greenhorn, OR

Average snowfall days in October - Greenhorn, OR
  • Average snowfall days in October: 1.3 days

The month with the highest number of snowfall days is December (14.5 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in October /
Average sunshine in October
Greenhorn, OR

Average daylight in October / Average sunshine in October - Greenhorn, OR
  • Average daylight in October: 11h and 0min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in October: 7h and 1min

The month with the most sunshine is August (Average sunshine: 12h and 6min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).

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Average sunshine days in October
Greenhorn, OR

Average sunshine days in October - Greenhorn, OR
  • Average sunshine days in October: 18.1 days

The month with the most sunshine days is July (24.9 days).
The month with the least sunshine days is February (9 days).

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Average UV index in October
Greenhorn, OR

Average UV index in October - Greenhorn, OR
  • Average UV index in October: 2

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

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Average cloud cover in October
Greenhorn, OR

Average cloud cover in October - Greenhorn, OR
  • Average cloud cover in October: 29

The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 9).

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Average visibility in October
Greenhorn, OR

Average visibility in October - Greenhorn, OR
  • Average visibility in October: 6mi

The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).

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Greenhorn, Oregon, USA

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