PlainClimate
NOAA 1991–2020 normals 48°F annual avg Public-domain federal data

Academy, SD Climate

Pulled from NOAA NCEI 1991–2020 normals →: average temperature, precipitation, and comfort score

48°F
Avg annual temp
59/100
Comfort score
24.0"
Annual precip
161d
Growing season

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

The climate verdict for Academy

Academy, South Dakota averages 48°F a year and scores 59/100 on the comfort index - moderate, milder than 39% of U.S. cities.

48°F
annual average temperature (NOAA normal)
59/100
comfort score, milder than 39% of U.S. cities
24.0"
annual precipitation · 42" snow
161 days
frost-free days per growing season

Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.

Avg Temperature

48°F (9°C)

Avg High

59°F

Avg Low

37°F

Annual Precip

24.0"

Annual Snow

41.5"

Comfort Score

59/100

Moderate

Climate Comfort Score

59/100

Moderate

Avg Annual Temperature

48°F

30-year mean (NOAA NCEI)

Annual Precipitation

24.0"

Plus 41.5" of snow

Comfort score vs national 100-point ceiling (Academy) 59.0%
National median (63)

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

How Academy compares to every U.S. city

Academy's comfort score vs. all U.S. cities

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

59 Top 61% higher than 39% 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 Academy

Methodology

Since 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. Academy's current NOAA 1991-2020 normal sits within that longer spread, and the most recent decade runs 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 30°F (-1°C) 11°F (-12°C) 20°F (-6°C)
February 35°F (2°C) 14°F (-10°C) 24°F (-4°C)
March 46°F (8°C) 24°F (-5°C) 35°F (2°C)
April 58°F (14°C) 35°F (2°C) 46°F (8°C)
May 69°F (21°C) 47°F (8°C) 58°F (14°C)
June 80°F (27°C) 58°F (14°C) 69°F (20°C)
July 87°F (30°C) 63°F (17°C) 75°F (24°C)
August 85°F (29°C) 60°F (16°C) 73°F (23°C)
September 77°F (25°C) 51°F (10°C) 64°F (18°C)
October 62°F (16°C) 37°F (3°C) 49°F (10°C)
November 46°F (8°C) 25°F (-4°C) 36°F (2°C)
December 33°F (1°C) 15°F (-10°C) 24°F (-4°C)

Monthly Precipitation

Average monthly rainfall and snowfall

January 0.5"

Snow: 5.8"

5.4 days with precipitation

February 0.6"

Snow: 7.7"

5.6 days with precipitation

March 1.1"

Snow: 6.5"

6.5 days with precipitation

April 2.7"

Snow: 6.8"

9.3 days with precipitation

May 3.5"

11.2 days with precipitation

June 3.9"

11.4 days with precipitation

July 3.0"

8.6 days with precipitation

August 3.0"

8.2 days with precipitation

September 2.5"

7.0 days with precipitation

October 1.8"

Snow: 1.1"

7.2 days with precipitation

November 0.8"

Snow: 5.4"

4.9 days with precipitation

December 0.5"

Snow: 8.2"

5.5 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

October 8

50% probability date

Last Spring Freeze

April 30

50% probability date

Growing Season

161 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

7,117

Higher = more heating needed

Cooling Degree Days

859

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

What Academy's climate means for you

Academy runs 48°F a year - peaking in July, coldest in January.

  • Gardeners get about 161 frost-free days, with the last spring freeze near April 30 - plan the planting calendar around it, not the regional average.
  • Energy bills track 7,117 heating and 859 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: Academy, SD

An annual average temperature of 48°F, ranging from a mean daily high of 59°F to a mean daily low of 37°F is what the NOAA 1991–2020 climate normals report for Academy, South Dakota. July is typically the warmest month of the year, while January is the coldest. That baseline comes from station USC00390043 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.

Academy averages 24.0 inches of precipitation a year, with 41.5 inches typically falling as snow, and that matters as much to daily life here as temperature does. The frost-free season averages 161 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 30 and the first fall freeze near October 8. As for energy demand, 7,117 heating degree days and 859 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Academy scores 59/100 (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 Academy, SD?
The average annual temperature in Academy, South Dakota is 48°F. The warmest month averages 87°F (30°C) and the coldest averages 11°F (-12°C).
How much rain does Academy get?
Academy receives 24.0 inches of precipitation annually, including 41.5 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Academy?
Academy has a climate comfort score of 59/100 (Moderate), milder than 39% of U.S. cities in the PlainClimate database.
When is the growing season in Academy?
Academy has approximately 161 frost-free days per year, with the last spring freeze around April 30 and the first fall freeze around October 8.
How much energy does heating and cooling require in Academy?
Academy has 7,117 heating degree days and 859 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 Academy climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00390043 near Academy.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00390043. 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.