Zip 04103 (Portland, ME) Climate

04103 Portland, ME has a humid continental climate. It experiences cold winters with occasional snow and ice storms as well as hot, humid summers. Precipitation is generally moderate year round, with slight increases in the late summer months. Snowfall averages around 35 inches annually, making it ideal for winter activities like skiing and snowboarding. The spring and fall are brief but pleasant with mild temperatures and plenty of sunshine. On average, temperatures rarely rise above 80°F or drop below 0°F throughout the year.

Portland (zip 04103), Maine gets 49 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Portland (zip 04103) averages 67 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 200 sunny days per year in Portland (zip 04103). The US average is 205 sunny days.

Portland (zip 04103) gets some kind of precipitation, on average, 128 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 79 degrees
Winter Low: the January low is 11
Rain: averages 49 inches of rain a year
Snow: averages 67 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 04103 zip code is 6.5 (10=best), which means it is more comfortable than most places in Maine.

9.2 Summer - 4.1 Winter

August, July and June are the most pleasant months in the 04103 zip code, while January and February are the least comfortable months.

Climate	Portland, Maine	United States
	49.0 in.	38.1 in.
	66.8 in.	27.8 in.
	128.1 days	106.2 days
	200 days	205 days
	79.4°	85.8°
	10.5°	21.7°
	6.5	7
	2.8	4.3
	69 ft.	2443 ft.

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 the 04103 zip code with an average high temperature of 79.4°, which ranks it as warmer than most places in Maine. In the 04103 zip code, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 04103 zip code are August, July and June.

In the 04103 zip code, there are 4.0 days annually when the high temperature is over 90°, which is hotter than most places in Maine.

January has the coldest nighttime temperatures for the 04103 zip code with an average of 10.5°. This is warmer than most places in Maine.

In the 04103 zip code, there are 153.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Maine.

In the 04103 zip code, there are 12.7 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Maine.

Humidity in the 04103 zip code is generally quite low and comfortable. There are few days during the summer when the humidity becomes unpleasant. The most humid months (but still comfortable) are July, August and June.

November is the wettest month in the 04103 zip code with 5.1 inches of rain, and the driest month is August with 3.2 inches. The wettest season is Winter with 28% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 49.0 inches in the 04103 zip code means that it is wetter than most places in Maine.

May is the rainiest month in the 04103 zip code with 12.4 days of rain, and September is the driest month with only 9.1 rainy days. There are 128.1 rainy days annually in the 04103 zip code, which is less rainy than most places in Maine. The rainiest season is Summer when it rains 27% of the time and the driest is Winter with only a 24% chance of a rainy day.

An annual snowfall of 66.8 inches in the 04103 zip code means that it is less snowy than most places in Maine. January is the snowiest month in the 04103 zip code with 19.2 inches of snow, and 6 months of the year have significant snowfall.

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