Portland Weather in November
November brings winter weather to Portland, Oregon. This is usually the first month with frost and frequent rain.
This page gives detailed information on the typical November temperature, precipitation, sun, humidity, wind and storms for Portland. The numbers here are historical averages based on climate data gathered near the Portland International Airport, located a few miles from downtown Portland.
|52 °F||November average high||11 °C|
|41 °F||November average low||5 °C|
|22 days||50 °F max. or more (10 °C)|
|14 days||40 °F min. or less (4 °C)|
Nearly every November day warms to over 40 degrees Fahrenheit (4 degrees Celsius) in Portland. The city averages 4 days in November when the thermometer reaches into the 60s °F (over 16 °C). Temperatures above 70 °F (21 °C) are not expected here this month.
The first frosts of winter usually arrive in November. The month averages three nights when the thermometer dips to 32 °F (0 °C) or lower. About once a decade, the mercury remains below freezing for the entire day.
|6.3 in||total precipitation||159 mm|
|19 days||of rain|
Half the time, Portland receives 3.7 to 8.0 inches (94 to 202 mm) of rainfall in November. One in four years has drier weather, while another one in four is wetter. About once a decade, Portland gets a light snowfall in November.
|3 days||clear skies|
The sun's rays reach the ground in Portland during 28 percent of daylight hours on average in November, for a total of 80 hours in the month. Typically on 3 days this month the sky is mainly clear, with at most 30 percent cloud cover.
Sunlight in November at Portland lasts for 9 hours and 30 minutes a day on average. The longest day of the month is the 1st with 10 hours and 7 minutes of daylight. By the end of the month, the days have shortened to 8:59 from sunrise to sunset. These durations can vary by a minute or two from year to year.
|82 %||November average humidity|
The relative humidity in Portland during November usually peaks at 87 percent in the morning then drops to 73 percent by early afternoon.
|Local Time||1 am||4 am||7 am||10 am||1 pm||4 pm||7 pm||10 pm|
|8.5 mph||November wind speed average||13.7 kph|
November is a little windier than most other months in Portland.
|4 days||rainfall of 0.5 inches (13 mm) or more|
|0 days||with thunderstorms in November|
Portland averages one day this month when it rains an inch (25 mm) or more. Every few years a thunderstorm shows up at Portland in November.
The weather data here are long-term averages provided by the US National Centers for Environmental Information (NCEI). Temperature and precipitation are 1991-2020 normals while humidity and thunderstorms are 1961-1990 normals.