October weather forecast and climate
Harrington, WA

Weather in October

October, like September, is another mild autumn month in Harrington, Washington, with temperature in the range of an average low of 40.1°F (4.5°C) and an average high of 55.6°F (13.1°C).

Temperature

In October, the average high-temperature declines considerably, from a pleasant 72.5°F (22.5°C) in September, to a mild 55.6°F (13.1°C). In Harrington, the average low-temperature is 40.1°F (4.5°C).

Humidity

In Harrington, the average relative humidity is 64%.

Rainfall

In October, the rain falls for 12 days. Throughout October, 1.5" (38mm) of precipitation is accumulated. Throughout the year, there are 127.9 rainfall days, and 15.71" (399mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall in Harrington. In Harrington, during 0.7 snowfall days, 0.16" (4mm) of snow is typically accumulated. Throughout the year, there are 65.1 snowfall days, and 37.36" (949mm) of snow is accumulated.

Daylight

The average length of the day in Harrington, Washington, is 10.8h.

Sunshine

The average sunshine in October is 6.5h.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Harrington. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to the UV radiation for average individuals.
Note: The daily maximum UV index of 2 in October interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in October in Harrington?

The average relative humidity in October in Harrington, Washington, is 64%.

How much does it rain in Harrington in October?

In Harrington, Washington, during October, the rain falls for 12 days and regularly aggregates up to 1.5" (38mm) of precipitation.

How many days does it snow in October in Harrington?

In Harrington, Washington, in October, during 0.7 snowfall days, 0.16" (4mm) of snow is typically accumulated.

How many hours of daylight does Harrington have in October?

The average length of the day in October in Harrington, Washington, is 10.8h.

How long on average sun shines in October in Harrington?

The average sunshine in October in Harrington, Washington, is 6.5h.

What is the month with the lowest UV index in Harrington?

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

How high is the UV index in October in Harrington?

The average daily maximum UV index in October in Harrington is 2. A UV Index of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation.

Average temperature in October
Harrington, WA

Average temperature in October - Harrington, WA
  • Average high temperature in October: 55.6°F

The warmest months (with the highest average high temperature) are July and August (83.3°F).
The month with the lowest average high temperature is December (31.5°F).

  • Average low temperature in October: 40.1°F

The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is December (21.9°F).

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Average pressure in October
Harrington, WA

Average pressure in October - Harrington, WA
  • Average pressure in October: 30.04"

The month with the highest atmospheric pressure is January (30.19").
The month with the lowest atmospheric pressure is August (29.9").

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Average wind speed in October
Harrington, WA

Average wind speed in October - Harrington, WA
  • Average wind speed in October: 7.1mph

The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

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Average humidity in October
Harrington, WA

Average humidity in October - Harrington, WA
  • Average humidity in October: 64%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (37%).

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Average rainfall in October
Harrington, WA

Average rainfall in October - Harrington, WA
  • Average rainfall in October: 1.5"

The wettest month (with the highest rainfall) is March (1.97").
The driest months (with the least rainfall) are July and August (0.31").

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Average rainfall days in October
Harrington, WA

Average rainfall days in October - Harrington, WA
  • Average rainfall days in October: 12 days

The month with the highest number of rainy days is March (16.3 days).
The month with the least rainy days is August (5.2 days).

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Average snowfall in October
Harrington, WA

Average snowfall in October - Harrington, WA
  • Average snowfall in October: 0.16"

The month with the highest snowfall is January (10").
Months with the least snowfall are June, July and August (0").

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Average snowfall days in October
Harrington, WA

Average snowfall days in October - Harrington, WA
  • Average snowfall days in October: 0.7 days

The month with the highest number of snowfall days is December (15.9 days).
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
Harrington, WA

Average daylight in October / Average sunshine in October - Harrington, WA
  • Average daylight in October: 10.8h

The month with the longest days is June (Average daylight: 15.9h).
The month with the shortest days is December (Average daylight: 8.5h).

  • Average sunshine in October: 6.5h

The month with the most sunshine is August (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 4.1h).

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Average sunshine days in October
Harrington, WA

Average sunshine days in October - Harrington, WA
  • Average sunshine days in October: 16.2 days

The month with the most sunshine days is July (23.7 days).
The month with the least sunshine days is March (10.2 days).

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Average UV index in October
Harrington, WA

Average UV index in October - Harrington, WA
  • Average UV index in October: 2

The month with the highest UV index is July (UV index 7).
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
Harrington, WA

Average cloud cover in October - Harrington, WA
  • Average cloud cover in October: 34

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 12).

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Average visibility in October
Harrington, WA

Average visibility in October - Harrington, WA
  • Average visibility in October: 6mi

Months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

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