Climate Comfort Score
49/100
Moderate
NOAA 1991–2020 normals 45°F annual avg Public-domain federal data
Deadwood, SD Climate
Explore average temperature, rainfall, and comfort score sourced from NOAA NCEI's 1991–2020 climate normals →
- 45°F
- Avg annual temp
- 49/100
- Comfort score
- 124d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Deadwood
Deadwood, South Dakota averages 45°F a year and scores 49/100 on the comfort index - moderate, milder than 18% of U.S. cities.
- 45°F
- annual average temperature (NOAA normal)
- 49/100
- comfort score, milder than 18% of U.S. cities
- 124 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
45°F (7°C)
Avg High
58°F
Avg Low
33°F
Annual Precip
N/A
Comfort Score
49/100
Moderate
Avg Annual Temperature
45°F
30-year mean (NOAA NCEI)
Annual Precipitation
N/A
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Deadwood) 49.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Deadwood area.
How Deadwood compares to every U.S. city
Deadwood'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 Deadwood
MethodologyThe chart below traces how the U.S. land temperature anomaly has moved against the global mean since 1900. For Deadwood, the NOAA 1991-2020 normal captures average conditions across that spread - notably, the most recent decade runs warmer than the 30-year mean itself.
- 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 | 38°F (3°C) | 14°F (-10°C) | 26°F (-3°C) | N/A | 30.5 | 0.0 |
| February | 39°F (4°C) | 14°F (-10°C) | 27°F (-3°C) | N/A | 27.2 | 0.0 |
| March | 48°F (9°C) | 22°F (-6°C) | 35°F (2°C) | N/A | 28.4 | 0.0 |
| April | 55°F (13°C) | 30°F (-1°C) | 42°F (6°C) | N/A | 18.9 | 0.0 |
| May | 65°F (18°C) | 39°F (4°C) | 52°F (11°C) | N/A | 8.8 | 0.1 |
| June | 75°F (24°C) | 49°F (10°C) | 62°F (17°C) | N/A | 0.4 | 1.2 |
| July | 83°F (28°C) | 56°F (13°C) | 69°F (21°C) | N/A | 0.0 | 6.7 |
| August | 82°F (28°C) | 54°F (12°C) | 68°F (20°C) | N/A | 0.3 | 5.1 |
| September | 73°F (23°C) | 44°F (7°C) | 59°F (15°C) | N/A | 3.9 | 1.6 |
| October | 58°F (15°C) | 31°F (0°C) | 45°F (7°C) | N/A | 16.1 | 0.0 |
| November | 47°F (8°C) | 22°F (-6°C) | 35°F (1°C) | N/A | 27.1 | 0.0 |
| December | 38°F (3°C) | 15°F (-10°C) | 26°F (-3°C) | N/A | 30.8 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January N/A
February N/A
March N/A
April N/A
May N/A
June N/A
July N/A
August N/A
September N/A
October N/A
November N/A
December N/A
Frost Dates & Growing Season
First Fall Freeze
September 25
50% probability date
Last Spring Freeze
May 24
50% probability date
Growing Season
124 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,495
Higher = more heating needed
Cooling Degree Days
388
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Deadwood's climate means for you
Deadwood runs 45°F a year - peaking in July, coldest in January.
- Gardeners get about 124 frost-free days, with the last spring freeze near May 24 - plan the planting calendar around it, not the regional average.
- Energy bills track 7,495 heating and 388 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: Deadwood, SD
In Deadwood, South Dakota, the NOAA 1991–2020 climate normals put the annual average temperature at 45°F, ranging from a mean daily high of 58°F to a mean daily low of 33°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00392207, these numbers smooth out year-to-year noise into a working baseline for a typical month.
Anyone planning to live, garden, or travel in Deadwood should weigh precipitation alongside temperature: the annual average runs an uncharted amount, predominantly as rainfall. The frost-free season averages 124 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 24 and the first fall freeze near September 25. And on the energy front, 7,495 heating degree days and 388 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Deadwood 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 Deadwood, SD? ▼
The average annual temperature in Deadwood, South Dakota is 45°F. The warmest month averages 83°F (28°C) and the coldest averages 14°F (-10°C).
How much rain does Deadwood get? ▼
Deadwood receives an unknown amount of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Deadwood? ▼
Deadwood 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 Deadwood? ▼
Deadwood has approximately 124 frost-free days per year, with the last spring freeze around May 24 and the first fall freeze around September 25.
How much energy does heating and cooling require in Deadwood? ▼
Deadwood has 7,495 heating degree days and 388 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 Deadwood climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00392207 near Deadwood.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00392207. 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.