PlainClimate
NOAA 1991–2020 normals 26°F annual avg Public-domain federal data

Galena, AK Climate

Explore average temperature, rainfall, and comfort score sourced from NOAA NCEI's 1991–2020 climate normals →

26°F
Avg annual temp
34/100
Comfort score
13.9"
Annual precip
113d
Growing season

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

The climate verdict for Galena

Galena, Alaska averages 26°F a year and scores 34/100 on the comfort index - below average, milder than 1% of U.S. cities.

26°F
average temperature, NOAA 1991-2020 normal
34/100
comfort score, milder than 1% of U.S. cities
13.9"
annual precipitation · 77" snow
113 days
growing season, frost-free days

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

Avg Temperature

26°F (-3°C)

Avg High

35°F

Avg Low

17°F

Annual Precip

13.9"

Annual Snow

77.2"

Comfort Score

34/100

Below Average

Climate Comfort Score

34/100

Below Average

Avg Annual Temperature

26°F

30-year mean (NOAA NCEI)

Annual Precipitation

13.9"

Plus 77.2" of snow

Comfort score vs national 100-point ceiling (Galena) 34.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Below Average for the Galena area.

How Galena compares to every U.S. city

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

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

34 Top 99% higher than 1% 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%). This entry sits in this band. 40–50: 1,302 US cities (19%). Above this entry. 50–60: 1,433 US cities (21%). Above this entry. 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 Galena

Methodology

Zooming out from Galena's own normal, the chart below shows how the U.S. land temperature anomaly has tracked the global mean since 1900 - the most recent decade sits warmer than the 30-year mean shown here.

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 -3°F (-19°C) -17°F (-27°C) -10°F (-23°C)
February 9°F (-13°C) -9°F (-23°C) 0°F (-18°C)
March 19°F (-7°C) -5°F (-20°C) 7°F (-14°C)
April 38°F (3°C) 17°F (-8°C) 27°F (-3°C)
May 57°F (14°C) 35°F (1°C) 46°F (8°C)
June 69°F (20°C) 47°F (8°C) 58°F (14°C)
July 69°F (21°C) 51°F (11°C) 60°F (16°C)
August 62°F (17°C) 46°F (8°C) 54°F (12°C)
September 52°F (11°C) 35°F (2°C) 44°F (6°C)
October 31°F (0°C) 20°F (-7°C) 26°F (-4°C)
November 12°F (-11°C) -1°F (-18°C) 6°F (-15°C)
December 3°F (-16°C) -11°F (-24°C) -4°F (-20°C)

Monthly Precipitation

Average monthly rainfall and snowfall

January 0.6"

Snow: 11.0"

7.4 days with precipitation

February 0.8"

Snow: 14.9"

9.4 days with precipitation

March 0.6"

Snow: 9.1"

7.0 days with precipitation

April 0.3"

Snow: 4.6"

5.6 days with precipitation

May 0.4"

Snow: 0.4"

6.0 days with precipitation

June 1.6"

9.3 days with precipitation

July 2.0"

11.2 days with precipitation

August 2.5"

14.5 days with precipitation

September 1.8"

Snow: 0.3"

11.9 days with precipitation

October 1.2"

Snow: 8.3"

11.1 days with precipitation

November 1.2"

Snow: 12.8"

10.0 days with precipitation

December 0.9"

Snow: 15.8"

10.8 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

September 8

50% probability date

Last Spring Freeze

May 18

50% probability date

Growing Season

113 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

14,208

Higher = more heating needed

Cooling Degree Days

26

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

What Galena's climate means for you

Galena runs 26°F a year - peaking in July, coldest in January.

  • Gardeners get about 113 frost-free days, with the last spring freeze near May 18 - plan the planting calendar around it, not the regional average.
  • Energy bills track 14,208 heating and 26 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: Galena, AK

Galena, Alaska runs an annual average of 26°F, ranging from a mean daily high of 35°F to a mean daily low of 17°F, per NOAA's 1991–2020 climate normals. July is typically the warmest month of the year, while January is the coldest. Drawn from station USC00503212, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.

Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Galena sees about 13.9 inches of precipitation a year, with 77.2 inches typically falling as snow. The frost-free season averages 113 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 18 and the first fall freeze near September 8. On the energy side, 14,208 heating degree days and 26 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Galena scores 34/100 (Below Average), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above turn that into a planning tool: expect the mildest highs and lows in the shoulder seasons, July-driven heat at the peak of summer, and January-driven cold at the depth of winter. Every number here is a thirty-year average, not a forecast, so any given year can and does run warmer, cooler, wetter, or drier than the normal.

Frequently Asked Questions

What is the average temperature in Galena, AK?
The average annual temperature in Galena, Alaska is 26°F. The warmest month averages 69°F (21°C) and the coldest averages -17°F (-27°C).
How much rain does Galena get?
Galena receives 13.9 inches of precipitation annually, including 77.2 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Galena?
Galena has a climate comfort score of 34/100 (Below Average), milder than 1% of U.S. cities in the PlainClimate database.
When is the growing season in Galena?
Galena has approximately 113 frost-free days per year, with the last spring freeze around May 18 and the first fall freeze around September 8.
How much energy does heating and cooling require in Galena?
Galena has 14,208 heating degree days and 26 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 Galena climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00503212 near Galena.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00503212. 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.