Climate Comfort Score
42/100
Moderate
2026 data Public-data reference. official source
Annette Island, AK Climate
Temperature, precipitation, and comfort score from NOAA NCEI 1991-2020 normals →
30-year climate normals from 1 weather station (1991-2020).
Annette Island, Alaska has an average annual temperature of 48°F and a climate comfort score of 42/100 (Moderate). Annual precipitation totals 103.5", including 34.8" of snow. Based on NOAA 30-year normals (1991–2020).
Avg Temperature
48°F (9°C)
Avg High
54°F
Avg Low
42°F
Annual Precip
103.5"
Annual Snow
34.8"
Comfort Score
42/100
Moderate
Avg Annual Temperature
48°F
30-year mean (NOAA NCEI)
Annual Precipitation
103.5"
Plus 34.8" of snow
Comfort score vs national 100-point ceiling (Annette Island) 42.0%
National median (≈55)
PlainClimate composite — temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Annette Island area.
Warming context for Annette Island
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Annette Island captures average conditions across the spread shown — the most recent decade is warmer than the 30-year mean.
- 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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 43°F (6°C) | 33°F (0°C) | 38°F (3°C) | 10.4" | 7.0" | 14.1 | 0.0 |
| February | 44°F (7°C) | 33°F (0°C) | 38°F (3°C) | 7.7" | 7.3" | 13.9 | 0.0 |
| March | 46°F (8°C) | 34°F (1°C) | 40°F (5°C) | 7.9" | 7.8" | 12.0 | 0.0 |
| April | 52°F (11°C) | 39°F (4°C) | 45°F (7°C) | 7.2" | 1.0" | 3.0 | 0.0 |
| May | 59°F (15°C) | 45°F (7°C) | 52°F (11°C) | 5.5" | 0.0" | 0.1 | 0.0 |
| June | 63°F (17°C) | 50°F (10°C) | 56°F (14°C) | 5.1" | 0.0" | 0.0 | 0.1 |
| July | 66°F (19°C) | 54°F (12°C) | 60°F (15°C) | 5.2" | 0.0" | 0.0 | 0.0 |
| August | 66°F (19°C) | 54°F (12°C) | 60°F (16°C) | 7.9" | 0.0" | 0.0 | 0.0 |
| September | 61°F (16°C) | 49°F (10°C) | 55°F (13°C) | 10.2" | 0.0" | 0.0 | 0.0 |
| October | 54°F (12°C) | 42°F (6°C) | 48°F (9°C) | 12.9" | 0.0" | 1.9 | 0.0 |
| November | 47°F (8°C) | 37°F (3°C) | 42°F (5°C) | 12.6" | 3.6" | 8.8 | 0.0 |
| December | 43°F (6°C) | 34°F (1°C) | 38°F (3°C) | 11.0" | 8.1" | 14.0 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 10.4"
Snow: 7.0"
21.9 days with precipitation
February 7.7"
Snow: 7.3"
17.9 days with precipitation
March 7.9"
Snow: 7.8"
22.0 days with precipitation
April 7.2"
Snow: 1.0"
19.1 days with precipitation
May 5.5"
15.3 days with precipitation
June 5.1"
15.5 days with precipitation
July 5.2"
15.4 days with precipitation
August 7.9"
15.8 days with precipitation
September 10.2"
19.5 days with precipitation
October 12.9"
22.5 days with precipitation
November 12.6"
Snow: 3.6"
23.3 days with precipitation
December 11.0"
Snow: 8.1"
23.2 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
October 31
50% probability date
Last Spring Freeze
April 4
50% probability date
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
6,325
Higher = more heating needed
Cooling Degree Days
28
Higher = more cooling needed
Warmest Month
August
Coldest Month
January
Related Data
PlainEnviro
EPA environmental data — pollution, water quality, and environmental health by location
PlainCarbon
Carbon emissions data — greenhouse gas reporting and facility-level CO2 data
PlainHazard
Natural disaster data — weather-related hazards, FEMA declarations, and risk profiles
PlainAirData
EPA air quality data — AQI readings, pollutant levels, and air quality trends
Climate Guides
Climate Insight: Annette Island, AK
The NOAA 1991–2020 climate normals describe Annette Island, Alaska as a location with an annual average temperature of 48°F, ranging from a mean daily high of 54°F to a mean daily low of 42°F. August is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USW00025308, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.
Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Annette Island receives roughly 103.5 inches of precipitation each year, with 34.8 inches typically falling as snow. Growing-season length varies with elevation and microclimate, with the last spring freeze near April 4 and the first fall freeze near October 31. For energy use, 6,325 heating degree days and 28 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Annette Island scores 42/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Use the monthly tables above to plan around specific windows — shoulder seasons for mild highs and lows, peak summer for August-driven heat, or deep winter for January-driven cold. All figures here are thirty-year averages: any single year may run warmer, wetter, drier, or cooler than the normal, so treat them as planning guidance rather than forecasts.
Frequently Asked Questions
What is the average temperature in Annette Island, AK? ▼
The average annual temperature in Annette Island, Alaska is 48°F. The warmest month averages 66°F (19°C) and the coldest averages 33°F (0°C).
How much rain does Annette Island get? ▼
Annette Island receives 103.5 inches of precipitation annually, including 34.8 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Annette Island? ▼
Annette Island has a climate comfort score of 42/100 (Moderate). This score considers temperature mildness, humidity, precipitation, and extreme weather frequency.
When is the growing season in Annette Island? ▼
Growing season data is not available for Annette Island.
How much energy does heating and cooling require in Annette Island? ▼
Annette Island has 6,325 heating degree days and 28 cooling degree days annually. Higher heating degree days indicate greater winter energy demand, while higher cooling degree days indicate greater summer cooling needs.
Where does this Annette Island climate data come from? ▼
All climate data comes from NOAA U.S. Climate Normals v1.0.1, covering the 30-year period from 1991 to 2020. Data is collected from weather station USW00025308. These 30-year averages are the standard reference for typical weather conditions.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00025308. For informational purposes only.
Read our methodology — how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial
