Climate Comfort Score
34/100
Below Average
NOAA 1991–2020 normals 44°F annual avg Public-domain federal data
Thorne Bay, AK Climate
Annual temperature, rainfall, and a comfort score, sourced from NOAA NCEI's 1991–2020 normals →
- 44°F
- Avg annual temp
- 34/100
- Comfort score
- 85.2"
- Annual precip
- 165d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Thorne Bay
Thorne Bay, Alaska averages 44°F a year and scores 34/100 on the comfort index - below average, milder than 1% of U.S. cities.
- 44°F
- yearly average temperature, NOAA normal
- 34/100
- comfort score, milder than 1% of U.S. cities
- 85.2"
- annual precipitation
- 165 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
44°F (7°C)
Avg High
51°F
Avg Low
38°F
Annual Precip
85.2"
Comfort Score
34/100
Below Average
Avg Annual Temperature
44°F
30-year mean (NOAA NCEI)
Annual Precipitation
85.2"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Thorne Bay) 34.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Below Average for the Thorne Bay area.
How Thorne Bay compares to every U.S. city
Thorne Bay'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
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 Thorne Bay
MethodologySince 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. Thorne Bay's current NOAA 1991-2020 normal sits within that longer spread, and the most recent decade runs 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 | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 38°F (3°C) | 28°F (-2°C) | 33°F (1°C) | 8.2" | 17.2 | 0.0 |
| February | 40°F (4°C) | 28°F (-2°C) | 34°F (1°C) | 5.5" | 21.4 | 0.0 |
| March | 43°F (6°C) | 30°F (-1°C) | 36°F (2°C) | 6.3" | 21.8 | 0.0 |
| April | 50°F (10°C) | 34°F (1°C) | 42°F (5°C) | 5.1" | 12.7 | 0.0 |
| May | 57°F (14°C) | 40°F (4°C) | 49°F (9°C) | 3.5" | 1.6 | 0.0 |
| June | 63°F (17°C) | 46°F (8°C) | 54°F (12°C) | 4.1" | 0.0 | 0.0 |
| July | 66°F (19°C) | 51°F (10°C) | 58°F (15°C) | 5.3" | 0.0 | 0.0 |
| August | 65°F (19°C) | 50°F (10°C) | 58°F (14°C) | 7.0" | 0.0 | 0.1 |
| September | 59°F (15°C) | 45°F (7°C) | 52°F (11°C) | 8.6" | 0.1 | 0.0 |
| October | 51°F (10°C) | 38°F (3°C) | 44°F (7°C) | 12.1" | 6.0 | 0.0 |
| November | 42°F (5°C) | 32°F (0°C) | 37°F (3°C) | 10.5" | 15.3 | 0.0 |
| December | 38°F (3°C) | 30°F (-1°C) | 34°F (1°C) | 9.1" | 21.3 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 8.2"
February 5.5"
March 6.3"
April 5.1"
May 3.5"
June 4.1"
July 5.3"
August 7.0"
September 8.6"
October 12.1"
November 10.5"
December 9.1"
Frost Dates & Growing Season
First Fall Freeze
October 13
50% probability date
Last Spring Freeze
May 1
50% probability date
Growing Season
165 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,564
Higher = more heating needed
Cooling Degree Days
11
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Thorne Bay's climate means for you
Thorne Bay runs 44°F a year - peaking in July, coldest in January.
- Gardeners get about 165 frost-free days, with the last spring freeze near May 1 - plan the planting calendar around it, not the regional average.
- Energy bills track 7,564 heating and 11 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: Thorne Bay, AK
Based on station USC00509148 feeding NOAA's 1991–2020 climate normals, Thorne Bay, Alaska averages 44°F a year, ranging from a mean daily high of 51°F to a mean daily low of 38°F. July is typically the warmest month of the year, while January is the coldest. Because these figures are thirty-year averages rather than any single year's readings, they describe the typical month, not a forecast for it.
Anyone planning to live, garden, or travel in Thorne Bay should weigh precipitation alongside temperature: the annual average runs 85.2 inches, predominantly as rainfall. The frost-free season averages 165 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 October 13. And on the energy front, 7,564 heating degree days and 11 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Thorne Bay scores 34/100 (Below Average), 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 July-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 Thorne Bay, AK? ▼
The average annual temperature in Thorne Bay, Alaska is 44°F. The warmest month averages 66°F (19°C) and the coldest averages 28°F (-2°C).
How much rain does Thorne Bay get? ▼
Thorne Bay receives 85.2 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Thorne Bay? ▼
Thorne Bay 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 Thorne Bay? ▼
Thorne Bay has approximately 165 frost-free days per year, with the last spring freeze around May 1 and the first fall freeze around October 13.
How much energy does heating and cooling require in Thorne Bay? ▼
Thorne Bay has 7,564 heating degree days and 11 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 Thorne Bay climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00509148 near Thorne Bay.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00509148. 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
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.