PlainClimate
NOAA 1991–2020 normals 38°F annual avg Public-domain federal data

Anchorage Merrill Fld, AK Climate

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

38°F
Avg annual temp
44/100
Comfort score
14.2"
Annual precip
151d
Growing season

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

The climate verdict for Anchorage Merrill Fld

Anchorage Merrill Fld, Alaska averages 38°F a year and scores 44/100 on the comfort index - moderate, milder than 8% of U.S. cities.

38°F
average temperature, NOAA 1991-2020 normal
44/100
comfort score, milder than 8% of U.S. cities
14.2"
precipitation, annual total
151 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

38°F (3°C)

Avg High

45°F

Avg Low

30°F

Annual Precip

14.2"

Comfort Score

44/100

Moderate

Climate Comfort Score

44/100

Moderate

Avg Annual Temperature

38°F

30-year mean (NOAA NCEI)

Annual Precipitation

14.2"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Anchorage Merrill Fld) 44.0%
National median (63)

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

How Anchorage Merrill Fld compares to every U.S. city

Anchorage Merrill Fld's comfort score vs. all U.S. cities

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

44 Top 92% higher than 8% 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%). This entry sits in this band. 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 Anchorage Merrill Fld

Methodology

Since 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. Anchorage Merrill Fld'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 23°F (-5°C) 8°F (-13°C) 15°F (-9°C)
February 28°F (-2°C) 12°F (-11°C) 20°F (-7°C)
March 34°F (1°C) 17°F (-8°C) 26°F (-4°C)
April 47°F (8°C) 30°F (-1°C) 39°F (4°C)
May 58°F (15°C) 41°F (5°C) 50°F (10°C)
June 66°F (19°C) 50°F (10°C) 58°F (14°C)
July 68°F (20°C) 54°F (12°C) 61°F (16°C)
August 66°F (19°C) 51°F (11°C) 59°F (15°C)
September 57°F (14°C) 43°F (6°C) 50°F (10°C)
October 43°F (6°C) 30°F (-1°C) 36°F (2°C)
November 29°F (-2°C) 16°F (-9°C) 23°F (-5°C)
December 25°F (-4°C) 11°F (-11°C) 18°F (-8°C)

Monthly Precipitation

Average monthly rainfall

January 0.5"

6.0 days with precipitation

February 0.7"

6.4 days with precipitation

March 0.5"

6.0 days with precipitation

April 0.3"

4.5 days with precipitation

May 0.6"

6.5 days with precipitation

June 1.0"

9.9 days with precipitation

July 1.7"

12.4 days with precipitation

August 2.5"

15.6 days with precipitation

September 3.0"

15.0 days with precipitation

October 1.6"

11.4 days with precipitation

November 0.9"

7.4 days with precipitation

December 0.9"

8.1 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

September 29

50% probability date

Last Spring Freeze

May 1

50% probability date

Growing Season

151 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

9,902

Higher = more heating needed

Cooling Degree Days

20

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

Humidity & Wind

Monthly averages from hourly observations

Month Humidity Wind (mph)
January 79% 3.1
February 72% 3.4
March 64% 3.8
April 57% 4.6
May 58% 4.9
June 66% 4.6
July 72% 4.0
August 74% 3.6
September 73% 3.6
October 77% 3.3
November 79% 3.2
December 80% 2.7

What Anchorage Merrill Fld's climate means for you

Anchorage Merrill Fld runs 38°F a year - peaking in July, coldest in January.

  • Gardeners get about 151 frost-free days, with the last spring freeze near May 1 - plan the planting calendar around it, not the regional average.
  • Energy bills track 9,902 heating and 20 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: Anchorage Merrill Fld, AK

In Anchorage Merrill Fld, Alaska, the NOAA 1991–2020 climate normals put the annual average temperature at 38°F, ranging from a mean daily high of 45°F to a mean daily low of 30°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USW00026409, these numbers smooth out year-to-year noise into a working baseline for a typical month.

Anyone planning to live, garden, or travel in Anchorage Merrill Fld should weigh precipitation alongside temperature: the annual average runs 14.2 inches, predominantly as rainfall. The frost-free season averages 151 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 1 and the first fall freeze near September 29. And on the energy front, 9,902 heating degree days and 20 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Anchorage Merrill Fld scores 44/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above are the practical planning tool: mild highs and lows land in the shoulder seasons, July-driven heat peaks in summer, and January-driven cold sets in over deep winter. These are thirty-year averages, not a forecast - any single year can run warmer, wetter, drier, or cooler than the normal.

Frequently Asked Questions

What is the average temperature in Anchorage Merrill Fld, AK?
The average annual temperature in Anchorage Merrill Fld, Alaska is 38°F. The warmest month averages 68°F (20°C) and the coldest averages 8°F (-13°C).
How much rain does Anchorage Merrill Fld get?
Anchorage Merrill Fld receives 14.2 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Anchorage Merrill Fld?
Anchorage Merrill Fld has a climate comfort score of 44/100 (Moderate), milder than 8% of U.S. cities in the PlainClimate database.
When is the growing season in Anchorage Merrill Fld?
Anchorage Merrill Fld has approximately 151 frost-free days per year, with the last spring freeze around May 1 and the first fall freeze around September 29.
How much energy does heating and cooling require in Anchorage Merrill Fld?
Anchorage Merrill Fld has 9,902 heating degree days and 20 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 Anchorage Merrill Fld climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USW00026409 near Anchorage Merrill Fld.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00026409. 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.