Climate Comfort Score
49/100
Moderate
NOAA 1991–2020 normals 44°F annual avg 3 stations
Aberdeen, SD Climate
Annual temperature, rainfall, and a comfort score, sourced from NOAA NCEI's 1991–2020 normals →
- 44°F
- Avg annual temp
- 49/100
- Comfort score
- 21.8"
- Annual precip
- 140d
- Growing season
30-year climate normals from 3 weather stations (1991-2020).
The climate verdict for Aberdeen
Aberdeen, South Dakota averages 44°F a year and scores 49/100 on the comfort index - moderate, milder than 18% of U.S. cities.
- 44°F
- average temperature, NOAA 1991-2020 normal
- 49/100
- comfort score, milder than 18% of U.S. cities
- 21.8"
- annual precipitation · 43" snow
- 140 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
44°F (7°C)
Avg High
56°F
Avg Low
32°F
Annual Precip
21.8"
Annual Snow
42.7"
Comfort Score
49/100
Moderate
Avg Annual Temperature
44°F
30-year mean (NOAA NCEI)
Annual Precipitation
21.8"
Plus 42.7" of snow
Comfort score vs national 100-point ceiling (Aberdeen) 49.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Aberdeen area.
How Aberdeen compares to every U.S. city
Aberdeen's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
49 Top 82% higher than 18% 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 Aberdeen
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Aberdeen 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 | 24°F (-5°C) | 2°F (-17°C) | 13°F (-11°C) | 0.6" | 7.8" | 31.0 | 0.0 |
| February | 29°F (-2°C) | 6°F (-14°C) | 18°F (-8°C) | 0.6" | 8.6" | 27.5 | 0.0 |
| March | 42°F (5°C) | 19°F (-7°C) | 31°F (-1°C) | 0.9" | 6.3" | 27.5 | 0.0 |
| April | 58°F (14°C) | 31°F (0°C) | 45°F (7°C) | 1.9" | 4.2" | 15.9 | 0.1 |
| May | 70°F (21°C) | 44°F (7°C) | 57°F (14°C) | 3.3" | 0.0" | 2.8 | 0.8 |
| June | 80°F (27°C) | 55°F (13°C) | 68°F (20°C) | 3.8" | 0.0" | 0.0 | 2.9 |
| July | 85°F (29°C) | 60°F (15°C) | 72°F (22°C) | 3.1" | 0.0" | 0.0 | 6.1 |
| August | 83°F (28°C) | 57°F (14°C) | 70°F (21°C) | 2.2" | 0.0" | 0.0 | 3.8 |
| September | 75°F (24°C) | 47°F (8°C) | 61°F (16°C) | 2.0" | 0.0" | 1.9 | 1.5 |
| October | 59°F (15°C) | 33°F (1°C) | 46°F (8°C) | 2.1" | 1.3" | 14.3 | 0.2 |
| November | 43°F (6°C) | 19°F (-7°C) | 31°F (-1°C) | 0.7" | 6.5" | 27.2 | 0.0 |
| December | 29°F (-2°C) | 8°F (-13°C) | 18°F (-8°C) | 0.6" | 8.0" | 30.8 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 0.6"
Snow: 7.8"
7.1 days with precipitation
February 0.6"
Snow: 8.6"
7.0 days with precipitation
March 0.9"
Snow: 6.3"
7.7 days with precipitation
April 1.9"
Snow: 4.2"
8.1 days with precipitation
May 3.3"
10.4 days with precipitation
June 3.8"
11.5 days with precipitation
July 3.1"
10.1 days with precipitation
August 2.2"
8.1 days with precipitation
September 2.0"
7.7 days with precipitation
October 2.1"
Snow: 1.3"
7.6 days with precipitation
November 0.7"
Snow: 6.5"
6.1 days with precipitation
December 0.6"
Snow: 8.0"
6.9 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
September 26
50% probability date
Last Spring Freeze
May 9
50% probability date
Growing Season
140 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
8,222
Higher = more heating needed
Cooling Degree Days
630
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Humidity & Wind
Monthly averages from hourly observations
| Month | Humidity | Wind (mph) | Clear Sky % | Overcast % |
|---|---|---|---|---|
| January | 79% | 10.3 | 48% | 36% |
| February | 77% | 10.8 | 47% | 36% |
| March | 67% | 12.1 | 51% | 30% |
| April | 60% | 11.9 | 53% | 26% |
| May | 64% | 10.5 | 52% | 21% |
| June | 68% | 9.8 | 63% | 11% |
| July | 72% | 7.9 | 67% | 10% |
| August | 71% | 9.3 | 71% | 12% |
| September | 66% | 10.2 | 65% | 19% |
| October | 70% | 10.6 | 57% | 29% |
| November | 76% | 10.2 | 54% | 34% |
| December | 79% | 10.3 | 47% | 39% |
What Aberdeen's climate means for you
Aberdeen runs 44°F a year - peaking in July, coldest in January.
- Gardeners get about 140 frost-free days, with the last spring freeze near May 9 - plan the planting calendar around it, not the regional average.
- Energy bills track 8,222 heating and 630 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: Aberdeen, SD
An annual average temperature of 44°F, ranging from a mean daily high of 56°F to a mean daily low of 32°F is what the NOAA 1991–2020 climate normals report for Aberdeen, South Dakota. July is typically the warmest month of the year, while January is the coldest. That baseline comes from 3 weather stations and thirty years of averaging, so it reflects a typical month rather than any one year's swings.
Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Aberdeen sees about 21.8 inches of precipitation a year, with 42.7 inches typically falling as snow. The frost-free season averages 140 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 September 26. On the energy side, 8,222 heating degree days and 630 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Aberdeen scores 49/100 (Moderate), 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 Aberdeen, SD? ▼
The average annual temperature in Aberdeen, South Dakota is 44°F. The warmest month averages 85°F (29°C) and the coldest averages 2°F (-17°C).
How much rain does Aberdeen get? ▼
Aberdeen receives 21.8 inches of precipitation annually, including 42.7 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Aberdeen? ▼
Aberdeen has a climate comfort score of 49/100 (Moderate), milder than 18% of U.S. cities in the PlainClimate database.
When is the growing season in Aberdeen? ▼
Aberdeen has approximately 140 frost-free days per year, with the last spring freeze around May 9 and the first fall freeze around September 26.
How much energy does heating and cooling require in Aberdeen? ▼
Aberdeen has 8,222 heating degree days and 630 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 Aberdeen climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from 3 weather stations near Aberdeen.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00014929. 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.