Climate Comfort Score
34/100
Below Average
NOAA 1991–2020 normals 40°F annual avg Public-domain federal data
Juneau Forecast Office, AK Climate
Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →
- 40°F
- Avg annual temp
- 34/100
- Comfort score
- 81.3"
- Annual precip
- 148d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Juneau Forecast Office
Juneau Forecast Office, Alaska averages 40°F a year and scores 34/100 on the comfort index - below average, milder than 1% of U.S. cities.
- 40°F
- yearly average temperature, NOAA normal
- 34/100
- comfort score, milder than 1% of U.S. cities
- 81.3"
- yearly precipitation total
- 148 days
- frost-free growing season
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
40°F (5°C)
Avg High
47°F
Avg Low
34°F
Annual Precip
81.3"
Comfort Score
34/100
Below Average
Avg Annual Temperature
40°F
30-year mean (NOAA NCEI)
Annual Precipitation
81.3"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Juneau Forecast Office) 34.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Below Average for the Juneau Forecast Office area.
How Juneau Forecast Office compares to every U.S. city
Juneau Forecast Office'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 Juneau Forecast Office
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Juneau Forecast Office 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 | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 30°F (-1°C) | 21°F (-6°C) | 26°F (-4°C) | 6.6" | 25.8 | 0.0 |
| February | 34°F (1°C) | 22°F (-5°C) | 28°F (-2°C) | 4.6" | 23.8 | 0.0 |
| March | 40°F (4°C) | 24°F (-4°C) | 32°F (0°C) | 4.0" | 27.7 | 0.0 |
| April | 49°F (9°C) | 31°F (0°C) | 40°F (5°C) | 4.6" | 17.8 | 0.0 |
| May | 58°F (14°C) | 38°F (3°C) | 48°F (9°C) | 4.7" | 3.0 | 0.0 |
| June | 62°F (17°C) | 44°F (7°C) | 53°F (12°C) | 4.9" | 0.0 | 0.0 |
| July | 62°F (16°C) | 47°F (8°C) | 54°F (12°C) | 6.4" | 0.0 | 0.0 |
| August | 61°F (16°C) | 46°F (8°C) | 54°F (12°C) | 8.9" | 0.0 | 0.0 |
| September | 55°F (13°C) | 41°F (5°C) | 48°F (9°C) | 10.6" | 1.1 | 0.0 |
| October | 46°F (8°C) | 35°F (2°C) | 41°F (5°C) | 10.0" | 11.3 | 0.0 |
| November | 36°F (2°C) | 28°F (-2°C) | 32°F (0°C) | 8.0" | 22.0 | 0.0 |
| December | 32°F (0°C) | 24°F (-4°C) | 28°F (-2°C) | 8.1" | 25.5 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 6.6"
February 4.6"
March 4.0"
April 4.6"
May 4.7"
June 4.9"
July 6.4"
August 8.9"
September 10.6"
October 10.0"
November 8.0"
December 8.1"
Frost Dates & Growing Season
First Fall Freeze
October 4
50% probability date
Last Spring Freeze
May 9
50% probability date
Growing Season
148 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
9,000
Higher = more heating needed
Cooling Degree Days
1
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Juneau Forecast Office's climate means for you
Juneau Forecast Office runs 40°F a year - peaking in July, coldest in January.
- Gardeners get about 148 frost-free days, with the last spring freeze near May 9 - plan the planting calendar around it, not the regional average.
- Energy bills track 9,000 heating and 1 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: Juneau Forecast Office, AK
The NOAA 1991–2020 climate normals describe Juneau Forecast Office, Alaska as a location with an annual average temperature of 40°F, ranging from a mean daily high of 47°F to a mean daily low of 34°F. July is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USC00504103, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.
Juneau Forecast Office averages 81.3 inches of precipitation a year, predominantly as rainfall, and that matters as much to daily life here as temperature does. The frost-free season averages 148 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 9 and the first fall freeze near October 4. As for energy demand, 9,000 heating degree days and 1 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Juneau Forecast Office scores 34/100 (Below Average), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. For planning purposes, look to the monthly tables above: shoulder seasons bring the mildest highs and lows, summer brings July-driven heat, and deep winter brings January-driven cold. Treat every figure here as a thirty-year average rather than a forecast - individual years routinely run warmer, cooler, wetter, or drier than the normal.
Frequently Asked Questions
What is the average temperature in Juneau Forecast Office, AK? ▼
The average annual temperature in Juneau Forecast Office, Alaska is 40°F. The warmest month averages 62°F (17°C) and the coldest averages 21°F (-6°C).
How much rain does Juneau Forecast Office get? ▼
Juneau Forecast Office receives 81.3 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Juneau Forecast Office? ▼
Juneau Forecast Office 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 Juneau Forecast Office? ▼
Juneau Forecast Office has approximately 148 frost-free days per year, with the last spring freeze around May 9 and the first fall freeze around October 4.
How much energy does heating and cooling require in Juneau Forecast Office? ▼
Juneau Forecast Office has 9,000 heating degree days and 1 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 Juneau Forecast Office climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00504103 near Juneau Forecast Office.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00504103. 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.