Climate Comfort Score
37/100
Below Average
NOAA 1991–2020 normals 28°F annual avg Public-domain federal data
Tonsina, AK Climate
Average temperature, precipitation, and a comfort score, drawn from NOAA NCEI 1991–2020 normals →
- 28°F
- Avg annual temp
- 37/100
- Comfort score
- 13.3"
- Annual precip
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Tonsina
Tonsina, Alaska averages 28°F a year and scores 37/100 on the comfort index - below average, milder than 3% of U.S. cities.
- 28°F
- average temperature, NOAA 1991-2020 normal
- 37/100
- comfort score, milder than 3% of U.S. cities
- 13.3"
- annual precipitation · 72" snow
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
28°F (-2°C)
Avg High
39°F
Avg Low
17°F
Annual Precip
13.3"
Annual Snow
71.8"
Comfort Score
37/100
Below Average
Avg Annual Temperature
28°F
30-year mean (NOAA NCEI)
Annual Precipitation
13.3"
Plus 71.8" of snow
Comfort score vs national 100-point ceiling (Tonsina) 37.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Below Average for the Tonsina area.
How Tonsina compares to every U.S. city
Tonsina's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
37 Top 97% higher than 3% 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 Tonsina
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Tonsina 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 | 5°F (-15°C) | -9°F (-23°C) | -2°F (-19°C) | 1.1" | 9.3" | 31.0 | 0.0 |
| February | 17°F (-8°C) | -5°F (-21°C) | 6°F (-14°C) | 1.0" | 12.4" | 28.0 | 0.0 |
| March | 29°F (-2°C) | -1°F (-18°C) | 14°F (-10°C) | 0.5" | 6.0" | 31.0 | 0.0 |
| April | 45°F (7°C) | 19°F (-7°C) | 32°F (0°C) | 0.2" | 2.2" | 29.2 | 0.0 |
| May | 57°F (14°C) | 31°F (-1°C) | 44°F (7°C) | 0.5" | 0.4" | 21.0 | 0.0 |
| June | 67°F (19°C) | 40°F (4°C) | 53°F (12°C) | 1.4" | 0.0" | 5.3 | 0.1 |
| July | 70°F (21°C) | 45°F (7°C) | 57°F (14°C) | 1.8" | 0.0" | 0.6 | 0.0 |
| August | 65°F (18°C) | 40°F (4°C) | 52°F (11°C) | 1.8" | 0.0" | 5.0 | 0.0 |
| September | 54°F (12°C) | 31°F (-1°C) | 42°F (6°C) | 1.5" | 1.6" | 18.0 | 0.0 |
| October | 36°F (2°C) | 17°F (-8°C) | 27°F (-3°C) | 1.0" | 9.1" | 29.6 | 0.0 |
| November | 15°F (-10°C) | 0°F (-18°C) | 7°F (-14°C) | 1.3" | 17.0" | 29.9 | 0.0 |
| December | 7°F (-14°C) | -8°F (-22°C) | 0°F (-18°C) | 1.3" | 13.8" | 30.9 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 1.1"
Snow: 9.3"
6.2 days with precipitation
February 1.0"
Snow: 12.4"
6.1 days with precipitation
March 0.5"
Snow: 6.0"
3.2 days with precipitation
April 0.2"
Snow: 2.2"
2.0 days with precipitation
May 0.5"
Snow: 0.4"
3.7 days with precipitation
June 1.4"
7.8 days with precipitation
July 1.8"
10.3 days with precipitation
August 1.8"
11.6 days with precipitation
September 1.5"
Snow: 1.6"
10.0 days with precipitation
October 1.0"
Snow: 9.1"
8.2 days with precipitation
November 1.3"
Snow: 17.0"
7.7 days with precipitation
December 1.3"
Snow: 13.8"
7.1 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
N/A
50% probability date
Last Spring Freeze
N/A
50% probability date
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
13,607
Higher = more heating needed
Cooling Degree Days
6
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Tonsina's climate means for you
Tonsina runs 28°F a year - peaking in July, coldest in January.
- Energy bills track 13,607 heating and 6 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: Tonsina, AK
In Tonsina, Alaska, the NOAA 1991–2020 climate normals put the annual average temperature at 28°F, ranging from a mean daily high of 39°F to a mean daily low of 17°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00509385, these numbers smooth out year-to-year noise into a working baseline for a typical month.
Anyone planning to live, garden, or travel in Tonsina should weigh precipitation alongside temperature: the annual average runs 13.3 inches, with 71.8 inches typically falling as snow. Growing-season length varies with elevation and microclimate. And on the energy front, 13,607 heating degree days and 6 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Tonsina scores 37/100 (Below Average), 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 Tonsina, AK? ▼
The average annual temperature in Tonsina, Alaska is 28°F. The warmest month averages 70°F (21°C) and the coldest averages -9°F (-23°C).
How much rain does Tonsina get? ▼
Tonsina receives 13.3 inches of precipitation annually, including 71.8 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Tonsina? ▼
Tonsina has a climate comfort score of 37/100 (Below Average), milder than 3% of U.S. cities in the PlainClimate database.
When is the growing season in Tonsina? ▼
Growing season data is not available for Tonsina.
How much energy does heating and cooling require in Tonsina? ▼
Tonsina has 13,607 heating degree days and 6 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 Tonsina climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00509385 near Tonsina.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00509385. 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.