Portland, NY Climate


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United States / New York / Jamestown-Dunkirk-Fredonia Metro Area / Chautauqua County / Portland / Zip Codes
Portland, NY has a humid continental climate, which is characterized by warm summers, cold winters, and an abundance of precipitation throughout the year. The average temperature in the summer ranges from 68 to 80 degrees Fahrenheit, while in the winter it can dip as low as 20 degrees. Precipitation is common throughout the year with snowfall occurring mainly from December to March. Winters are generally cloudy and wetter than other times of year.

Portland, New York gets 42 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Portland averages 77 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 159 sunny days per year in Portland. The US average is 205 sunny days.

Portland gets some kind of precipitation, on average, 146 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 81 degrees
Winter Low: the January low is 20
Rain: averages 42 inches of rain a year
Snow: averages 77 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Portland is 6.8 (10=best), which means it is about average compared to other places in New York.

9.4 Summer - 4.1 Winter
August, July and June are the most pleasant months in Portland, while January and December are the least comfortable months.

  ClimatePortland, New YorkUnited States
    Unlock38.1 in.
  76.7 in.  Unlock
    Unlock106.2 days
  159 days  Unlock
  80.7°85.8°
    Unlock21.7°
  6.8  Unlock
    Unlock4.3
  761 ft.  Unlock
Climate
YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for Portland with an average high temperature of 80.7°, which ranks it as cooler than most places in New York. In Portland, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Portland are August, June and July.
In Portland, there are 4.0 days annually when the high temperature is over 90°, which is cooler than most places in New York.
January has the coldest nighttime temperatures for Portland with an average of 20.1°. This is warmer than most places in New York.
In Portland, there are 117.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in New York.
In Portland, there are 2.4 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in New York.
Humidity in Portland is generally low and comfortable. But there some days when the humidity becomes unpleasant, especially in July and August. The most humid months (but still comfortable) are July, August and June.
September is the wettest month in Portland with 4.5 inches of rain, and the driest month is February with 1.9 inches. The wettest season is Winter with 31% of yearly precipitation and 18% occurs in Spring, which is the driest season. The annual rainfall of 42.0 inches in Portland means that it is drier than most places in New York.
January is the rainiest month in Portland with 15.9 days of rain, and July is the driest month with only 9.7 rainy days. There are 146.0 rainy days annually in Portland, which is rainier than most places in New York. The rainiest season is Spring when it rains 30% of the time and the driest is Autumn with only a 21% chance of a rainy day.
An annual snowfall of 76.7 inches in Portland means that it is snowier than most places in New York. January is the snowiest month in Portland with 22.6 inches of snow, and 6 months of the year have significant snowfall.
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