October weather forecast
Saint John, WA

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Weather in October

October, the same as September, in Saint John, Washington, is another refreshing autumn month, with temperature in the range of an average high of 56.8°F (13.8°C) and an average low of 41.9°F (5.5°C).

Temperature

October brings with it a considerable temperature decrease, with average high-temperatures dropping from September's agreeable 72.9°F (22.7°C) to a moderate 56.8°F (13.8°C). Saint John observes an average nighttime low-temperature of 41.9°F (5.5°C) during the month of October.

Humidity

In Saint John, the average relative humidity in October is 62%.

Rainfall

In Saint John, during October, the rain falls for 8.5 days and regularly aggregates up to 0.67" (17mm) of precipitation. In Saint John, during the entire year, the rain falls for 84.3 days and collects up to 7.24" (184mm) of precipitation.

Snowfall

In Saint John, snow does not fall in June through August and October.

Daylight

In October, the average length of the day is 10h and 51min.
On the first day of October in Saint John, sunrise is at 6:50 am and sunset at 6:29 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:34 pm PDT.

Sunshine

The average sunshine in October is 6.7h.

UV index

In Saint John, the average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 3 in October translates into these instructions:
Heed the precautions - Suggestions to avoid sunburn are made. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Updated: Jul 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in October?

In October, in Saint John, the average high-temperature is 56.8°F (13.8°C), and the average low-temperature is 41.9°F (5.5°C). In July, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 84.2°F (29°C).

What is the average humidity in October?

In Saint John, the average relative humidity in October is 62%.

How many days does it rain in October?

In Saint John, during October, the rain falls for 8.5 days and regularly aggregates up to 0.67" (17mm) of precipitation.

When it does not snow?

In Saint John, Washington, snow does not fall in June through August and October.

Does it snow in October?

In October, it doesn't snow. September is the latest month when it typically snows.

What is the average length of the day in October?

In Saint John, the average day length in October is 10h and 51min.

When are sunrise and sunset in October?

In October, on the first day of the month, sunrise is at 6:50 am and sunset at 6:29 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:34 pm PDT.

How long on average sun shines in October?

In Saint John, the average sunshine duration in October is 6.7h.

What is the UV index reading in October in Saint John?

In Saint John, the average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to 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
Saint John, WA

Average temperature in October - Saint John, WA
  • Average high temperature in October: 56.8°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is December (33.1°F).

  • Average low temperature in October: 41.9°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 (23.9°F).

Average pressure in October
Saint John, WA

Average pressure in October - Saint John, WA
  • Average pressure in October: 30.04"Hg

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

Average wind speed in October
Saint John, WA

Average wind speed in October - Saint John, WA
  • Average wind speed in October: 7.4mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in October
Saint John, WA

Average humidity in October - Saint John, WA
  • Average humidity in October: 62%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (36%).

Average rainfall in October
Saint John, WA

Average rainfall in October - Saint John, WA
  • Average rainfall in October: 0.67"

The wettest months (with the highest rainfall) are January and May (0.91").
The driest month (with the least rainfall) is July (0.16").

Average rainfall days in October
Saint John, WA

Average rainfall days in October - Saint John, WA
  • Average rainfall days in October: 8.5 days

The month with the highest number of rainy days is March (10.1 days).
The month with the least rainy days is July (3.5 days).

Average snowfall in October
Saint John, WA

Average snowfall in October - Saint John, WA
  • Average snowfall in October: 0"

The month with the highest snowfall is February (3.82").
The months with the least snowfall are June, July, August and October (0").

Average snowfall days in October
Saint John, WA

Average snowfall days in October - Saint John, WA
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is December (9.3 days).
The months with the least snowfall days are June, July, August and October (0 days).

Average daylight in October /
Average sunshine in October
Saint John, WA

Average daylight in October / Average sunshine in October - Saint John, WA
  • Average daylight in October: 10h and 5min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in October: 6h and 4min

The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).

Average sunshine days in October
Saint John, WA

Average sunshine days in October - Saint John, WA
  • Average sunshine days in October: 20.8 days

The month with the most sunshine days is July (26.6 days).
The month with the least sunshine days is February (15.9 days).

Average UV index in October
Saint John, WA

Average UV index in October - Saint John, WA
  • Average UV index in October: 3

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

Average cloud cover in October
Saint John, WA

Average cloud cover in October - Saint John, WA
  • Average cloud cover in October: 33

The months with the most cloud cover are January and December (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 11).

Average visibility in October
Saint John, WA

Average visibility in October - Saint John, WA
  • Average visibility in October: 6mi

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

Saint John, Washington, USA

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