Climate Comfort Score
49/100
Moderate
NOAA 1991–2020 normals 43°F annual avg Public-domain federal data
Roscoe, SD Climate
Annual temperature, rainfall, and a comfort score, sourced from NOAA NCEI's 1991–2020 normals →
- 43°F
- Avg annual temp
- 49/100
- Comfort score
- 21.4"
- Annual precip
- 149d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Roscoe
Roscoe, South Dakota averages 43°F a year and scores 49/100 on the comfort index - moderate, milder than 18% of U.S. cities.
- 43°F
- annual average temperature (NOAA normal)
- 49/100
- comfort score, milder than 18% of U.S. cities
- 21.4"
- annual precipitation · 47" snow
- 149 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
43°F (6°C)
Avg High
54°F
Avg Low
32°F
Annual Precip
21.4"
Annual Snow
47.0"
Comfort Score
49/100
Moderate
Avg Annual Temperature
43°F
30-year mean (NOAA NCEI)
Annual Precipitation
21.4"
Plus 47.0" of snow
Comfort score vs national 100-point ceiling (Roscoe) 49.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Roscoe area.
How Roscoe compares to every U.S. city
Roscoe'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 Roscoe
MethodologySince 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. Roscoe's current NOAA 1991-2020 normal sits within that longer spread, and the most recent decade runs 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 | 21°F (-6°C) | 3°F (-16°C) | 12°F (-11°C) | 0.5" | 8.1" | 30.9 | 0.0 |
| February | 26°F (-3°C) | 7°F (-14°C) | 16°F (-9°C) | 0.7" | 8.8" | 27.7 | 0.0 |
| March | 39°F (4°C) | 18°F (-8°C) | 28°F (-2°C) | 0.9" | 7.3" | 28.6 | 0.0 |
| April | 54°F (12°C) | 30°F (-1°C) | 42°F (6°C) | 1.8" | 5.8" | 18.3 | 0.0 |
| May | 67°F (19°C) | 43°F (6°C) | 55°F (13°C) | 3.2" | 0.1" | 3.2 | 0.6 |
| June | 77°F (25°C) | 54°F (12°C) | 66°F (19°C) | 3.7" | 0.0" | 0.0 | 1.5 |
| July | 83°F (28°C) | 59°F (15°C) | 71°F (22°C) | 3.2" | 0.0" | 0.0 | 5.5 |
| August | 81°F (27°C) | 56°F (13°C) | 69°F (20°C) | 2.3" | 0.0" | 0.0 | 4.6 |
| September | 73°F (23°C) | 47°F (8°C) | 60°F (15°C) | 1.9" | 0.0" | 1.3 | 1.4 |
| October | 57°F (14°C) | 33°F (1°C) | 45°F (7°C) | 1.8" | 2.3" | 14.0 | 0.1 |
| November | 40°F (4°C) | 20°F (-7°C) | 30°F (-1°C) | 0.7" | 5.9" | 27.3 | 0.0 |
| December | 26°F (-3°C) | 9°F (-13°C) | 18°F (-8°C) | 0.6" | 8.7" | 30.9 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 0.5"
Snow: 8.1"
6.9 days with precipitation
February 0.7"
Snow: 8.8"
6.6 days with precipitation
March 0.9"
Snow: 7.3"
6.6 days with precipitation
April 1.8"
Snow: 5.8"
8.1 days with precipitation
May 3.2"
Snow: 0.1"
10.7 days with precipitation
June 3.7"
11.8 days with precipitation
July 3.2"
9.9 days with precipitation
August 2.3"
8.0 days with precipitation
September 1.9"
7.4 days with precipitation
October 1.8"
Snow: 2.3"
7.4 days with precipitation
November 0.7"
Snow: 5.9"
5.5 days with precipitation
December 0.6"
Snow: 8.7"
6.2 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
October 3
50% probability date
Last Spring Freeze
May 7
50% probability date
Growing Season
149 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
8,624
Higher = more heating needed
Cooling Degree Days
503
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Roscoe's climate means for you
Roscoe runs 43°F a year - peaking in July, coldest in January.
- Gardeners get about 149 frost-free days, with the last spring freeze near May 7 - plan the planting calendar around it, not the regional average.
- Energy bills track 8,624 heating and 503 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: Roscoe, SD
Roscoe, South Dakota runs an annual average of 43°F, ranging from a mean daily high of 54°F to a mean daily low of 32°F, per NOAA's 1991–2020 climate normals. July is typically the warmest month of the year, while January is the coldest. Drawn from station USC00397277, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.
Beyond temperature, Roscoe averages 21.4 inches of precipitation annually, with 47.0 inches typically falling as snow - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 149 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 7 and the first fall freeze near October 3. Turning to energy use, 8,624 heating degree days and 503 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Roscoe scores 49/100 (Moderate), 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 Roscoe, SD? ▼
The average annual temperature in Roscoe, South Dakota is 43°F. The warmest month averages 83°F (28°C) and the coldest averages 3°F (-16°C).
How much rain does Roscoe get? ▼
Roscoe receives 21.4 inches of precipitation annually, including 47.0 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Roscoe? ▼
Roscoe 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 Roscoe? ▼
Roscoe has approximately 149 frost-free days per year, with the last spring freeze around May 7 and the first fall freeze around October 3.
How much energy does heating and cooling require in Roscoe? ▼
Roscoe has 8,624 heating degree days and 503 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 Roscoe climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00397277 near Roscoe.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00397277. 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.