PlainClimate
NOAA 1991–2020 normals 45°F annual avg Public-domain federal data

Eastport, ME Climate

Annual temperature, rainfall, and a comfort score, sourced from NOAA NCEI's 1991–2020 normals →

45°F
Avg annual temp
54/100
Comfort score
47.6"
Annual precip
179d
Growing season

30-year climate normals from 1 weather station (1991-2020).

The climate verdict for Eastport

Eastport, Maine averages 45°F a year and scores 54/100 on the comfort index - moderate, milder than 27% of U.S. cities.

45°F
average temperature, NOAA 1991-2020 normal
54/100
comfort score, milder than 27% of U.S. cities
47.6"
annual precipitation · 62" snow
179 days
frost-free days per growing season

Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.

Avg Temperature

45°F (7°C)

Avg High

53°F

Avg Low

37°F

Annual Precip

47.6"

Annual Snow

61.8"

Comfort Score

54/100

Moderate

Climate Comfort Score

54/100

Moderate

Avg Annual Temperature

45°F

30-year mean (NOAA NCEI)

Annual Precipitation

47.6"

Plus 61.8" of snow

Comfort score vs national 100-point ceiling (Eastport) 54.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Eastport area.

How Eastport compares to every U.S. city

Eastport's comfort score vs. all U.S. cities

PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals

54 Top 73% higher than 27% of 6,915 US cities

0–10: 0 US cities (0%). Below this entry. 10–20: 0 US cities (0%). Below this entry. 20–30: 58 US cities (1%). Below this entry. 30–40: 439 US cities (6%). Below this entry. 40–50: 1,302 US cities (19%). Below this entry. 50–60: 1,433 US cities (21%). This entry sits in this band. 60–70: 1,357 US cities (20%). Above this entry. 70–80: 1,102 US cities (16%). Above this entry. 80–90: 778 US cities (11%). Above this entry. 90–100: 420 US cities (6%). Above this entry. This city 0 100 every U.S. city, bucketed by value

Each bar is a band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020

Warming context for Eastport

Methodology

Since 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. Eastport's current NOAA 1991-2020 normal sits within that longer spread, and the most recent decade runs warmer than the 30-year mean.

Warming context, U.S. vs global, with Paris reference lines Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • United States land mean (NOAA NCEI) +0.11 °C/decade
  • Global anomaly (NASA GISTEMP) +0.11 °C/decade
  • Paris Agreement thresholds 1.5°C / 2.0°C
Sources: NOAA NCEI, NASA GISTEMP. Paris thresholds per IPCC AR6 WG1.

Monthly Temperatures

Average daily high and low temperatures by month

Month Avg High Avg Low Mean
January 30°F (-1°C) 15°F (-9°C) 23°F (-5°C)
February 32°F (0°C) 17°F (-8°C) 25°F (-4°C)
March 39°F (4°C) 24°F (-4°C) 32°F (0°C)
April 50°F (10°C) 34°F (1°C) 42°F (6°C)
May 60°F (16°C) 43°F (6°C) 52°F (11°C)
June 69°F (21°C) 49°F (10°C) 59°F (15°C)
July 75°F (24°C) 55°F (13°C) 65°F (18°C)
August 75°F (24°C) 56°F (13°C) 65°F (18°C)
September 67°F (20°C) 51°F (10°C) 59°F (15°C)
October 57°F (14°C) 42°F (5°C) 49°F (10°C)
November 46°F (8°C) 34°F (1°C) 40°F (4°C)
December 37°F (3°C) 23°F (-5°C) 30°F (-1°C)

Monthly Precipitation

Average monthly rainfall and snowfall

January 4.2"

Snow: 15.3"

12.4 days with precipitation

February 3.2"

Snow: 13.7"

10.6 days with precipitation

March 4.1"

Snow: 12.7"

11.9 days with precipitation

April 4.5"

Snow: 4.1"

11.4 days with precipitation

May 3.3"

12.3 days with precipitation

June 3.9"

12.7 days with precipitation

July 2.7"

11.8 days with precipitation

August 3.2"

9.9 days with precipitation

September 4.3"

11.0 days with precipitation

October 5.1"

Snow: 0.1"

10.7 days with precipitation

November 4.6"

Snow: 1.6"

11.5 days with precipitation

December 4.6"

Snow: 14.3"

13.8 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

October 25

50% probability date

Last Spring Freeze

April 29

50% probability date

Growing Season

179 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

7,404

Higher = more heating needed

Cooling Degree Days

125

Higher = more cooling needed

Warmest Month

August

Coldest Month

January

What Eastport's climate means for you

Eastport runs 45°F a year - peaking in August, coldest in January.

  • Gardeners get about 179 frost-free days, with the last spring freeze near April 29 - plan the planting calendar around it, not the regional average.
  • Energy bills track 7,404 heating and 125 cooling degree days a year, higher means the furnace or AC runs more.
  • Comparing places to live? Line this city up against nearby cities and the national rankings. See rankings

These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.

Climate Guides

Climate Insight: Eastport, ME

Eastport, Maine runs an annual average of 45°F, ranging from a mean daily high of 53°F to a mean daily low of 37°F, per NOAA's 1991–2020 climate normals. August is typically the warmest month of the year, while January is the coldest. Drawn from station USC00172426, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.

Anyone planning to live, garden, or travel in Eastport should weigh precipitation alongside temperature: the annual average runs 47.6 inches, with 61.8 inches typically falling as snow. The frost-free season averages 179 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 29 and the first fall freeze near October 25. And on the energy front, 7,404 heating degree days and 125 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Eastport scores 54/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Shoulder seasons bring the mildest highs and lows in the monthly tables above, summer brings August-driven heat, and winter brings January-driven cold - use that rhythm for planning. These figures are thirty-year averages rather than forecasts, so a specific year may still run warmer, cooler, wetter, or drier than what's shown.

Frequently Asked Questions

What is the average temperature in Eastport, ME?
The average annual temperature in Eastport, Maine is 45°F. The warmest month averages 75°F (24°C) and the coldest averages 15°F (-9°C).
How much rain does Eastport get?
Eastport receives 47.6 inches of precipitation annually, including 61.8 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Eastport?
Eastport has a climate comfort score of 54/100 (Moderate), milder than 27% of U.S. cities in the PlainClimate database.
When is the growing season in Eastport?
Eastport has approximately 179 frost-free days per year, with the last spring freeze around April 29 and the first fall freeze around October 25.
How much energy does heating and cooling require in Eastport?
Eastport has 7,404 heating degree days and 125 cooling degree days annually, a heating-dominated climate. See our <a href="/guides/reading-weather-data/" class="underline hover:text-brand-600">guide to reading weather data</a> for what these figures mean.
Where does this Eastport climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00172426 near Eastport.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00172426. For informational purposes only.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial

Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.