PlainClimate
NOAA 1991–2020 normals 35°F annual avg Public-domain federal data

St. Paul, AK Climate

Annual temperature, rainfall, and a comfort score, sourced from NOAA NCEI's 1991–2020 normals →

35°F
Avg annual temp
54/100
Comfort score
24.9"
Annual precip
115d
Growing season

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

The climate verdict for St. Paul

St. Paul, Alaska averages 35°F a year and scores 54/100 on the comfort index - moderate, milder than 27% of U.S. cities.

35°F
average temperature, NOAA 1991-2020 normal
54/100
comfort score, milder than 27% of U.S. cities
24.9"
annual precipitation
115 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

35°F (2°C)

Avg High

40°F

Avg Low

31°F

Annual Precip

24.9"

Comfort Score

54/100

Moderate

Climate Comfort Score

54/100

Moderate

Avg Annual Temperature

35°F

30-year mean (NOAA NCEI)

Annual Precipitation

24.9"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (St. Paul) 54.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the St. Paul area.

How St. Paul compares to every U.S. city

St. Paul's comfort score vs. all U.S. cities

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

54 Top 73% higher than 27% 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%). Below this entry. 50–60: 1,433 US cities (21%). This entry sits in this band. 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 St. Paul

Methodology

St. Paul's NOAA 1991-2020 normal sits inside a longer story: U.S. land temperatures have been tracking (and drifting from) the global mean since 1900, and the chart below shows that spread, with the most recent decade running 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 29°F (-2°C) 21°F (-6°C) 25°F (-4°C)
February 29°F (-1°C) 21°F (-6°C) 25°F (-4°C)
March 29°F (-2°C) 20°F (-7°C) 25°F (-4°C)
April 33°F (1°C) 25°F (-4°C) 29°F (-2°C)
May 40°F (5°C) 32°F (0°C) 36°F (2°C)
June 47°F (8°C) 38°F (3°C) 43°F (6°C)
July 51°F (11°C) 44°F (7°C) 47°F (8°C)
August 53°F (11°C) 45°F (7°C) 49°F (9°C)
September 50°F (10°C) 41°F (5°C) 45°F (7°C)
October 43°F (6°C) 34°F (1°C) 39°F (4°C)
November 38°F (3°C) 29°F (-1°C) 34°F (1°C)
December 33°F (1°C) 24°F (-5°C) 29°F (-2°C)

Monthly Precipitation

Average monthly rainfall

January 1.6"

17.4 days with precipitation

February 1.5"

16.1 days with precipitation

March 1.3"

16.1 days with precipitation

April 1.2"

14.0 days with precipitation

May 1.2"

14.1 days with precipitation

June 1.4"

12.2 days with precipitation

July 2.0"

14.8 days with precipitation

August 3.0"

17.7 days with precipitation

September 3.0"

20.3 days with precipitation

October 3.4"

23.4 days with precipitation

November 3.0"

22.8 days with precipitation

December 2.4"

22.8 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

September 28

50% probability date

Last Spring Freeze

June 5

50% probability date

Growing Season

115 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

10,790

Higher = more heating needed

Cooling Degree Days

0

Higher = more cooling needed

Warmest Month

August

Coldest Month

March

What St. Paul's climate means for you

St. Paul runs 35°F a year - peaking in August, coldest in March.

  • Gardeners get about 115 frost-free days, with the last spring freeze near June 5 - plan the planting calendar around it, not the regional average.
  • Energy bills track 10,790 heating and 0 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: St. Paul, AK

An annual average temperature of 35°F, ranging from a mean daily high of 40°F to a mean daily low of 31°F is what the NOAA 1991–2020 climate normals report for St. Paul, Alaska. August is typically the warmest month of the year, while March is the coldest. That baseline comes from station USW00025711 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.

Beyond temperature, St. Paul averages 24.9 inches of precipitation annually, predominantly as rainfall - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 115 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near June 5 and the first fall freeze near September 28. Turning to energy use, 10,790 heating degree days and 0 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, St. Paul scores 54/100 (Moderate), 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 August-driven heat, and deep winter brings March-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 St. Paul, AK?
The average annual temperature in St. Paul, Alaska is 35°F. The warmest month averages 53°F (11°C) and the coldest averages 20°F (-7°C).
How much rain does St. Paul get?
St. Paul receives 24.9 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for St. Paul?
St. Paul has a climate comfort score of 54/100 (Moderate), milder than 27% of U.S. cities in the PlainClimate database.
When is the growing season in St. Paul?
St. Paul has approximately 115 frost-free days per year, with the last spring freeze around June 5 and the first fall freeze around September 28.
How much energy does heating and cooling require in St. Paul?
St. Paul has 10,790 heating degree days and 0 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 St. Paul climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USW00025711 near St. Paul.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00025711. 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.