Johnson Siding, SD Climate: Temperature & Rain by Month
Average temperature and precipitation from NOAA NCEI 1991–2020 normals →, with a derived climate comfort score
30-year climate normals (1991-2020) from Johnson Siding's primary NOAA station, JOHNSON SIDING.
The climate verdict for Johnson Siding
Johnson Siding, South Dakota has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 45°F. Its climate comfort score of 64/100 (good) lands mid-pack nationally, exceeding 49% of station-mapped location scores.
- 45°F
- average temperature, NOAA 1991-2020 normal
- 64/100
- comfort score, above 49% of station-mapped location scores
- 21.6"
- annual precipitation
- 128 days
- frost-free growing season
Johnson Siding: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00394343 · Johnson Siding, SD 45°F mean · 21.6" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-DRY · SWING-MID · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 45°F
- RANK-COOL #1,304
- PHOTO-FINISH ≈ Hornell Almond…
- PRCP-DRY 21.6"
- SWING-MID 43°F
- COMF-MID 64/100
- LOAD-HEAT 7,540 HDD
- STN-1 USC00394343
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Hornell Almond Dam, NY ( -0.1 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every SD station list.
- Johnson Siding (this station) 45°F
- Cold Hornell Almond…, NY 45°F
- Near Rock Springs Fi…, WY 45°F
- Near Lava Hot Springs, ID 45°F
- Near Sybille Rsch Un…, WY 45°F
Climate Living Index · Johnson Siding
Johnson Siding: 24/100 · grade F
Johnson Siding publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Johnson Siding, not an official NOAA rating. Rankings still use Comfort Score 64/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 21.6 in · 13.4 from 35 in | 53/100 · D |
| Annual temperature balance | 45.1°F · 22.4° from 67.5°F | 20/100 · F |
| Normal heat + freeze calendar | 195 calendar days | 17/100 · F |
| Frost-free season | 128 days/year | 11/100 · F |
Johnson Siding · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Johnson Siding is a continental Köppen climate: Dwb
Coldest-month mean 25.7°F and warmest-month mean 68.3°F place this station in continental, dry-winter, warm summer climates (Dwb). Class Dwb is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, dry-winter, warm summer.
- Köppen code
- Dwb
- Group
- Continental
- Warmest month
- 68.3°F
- Coldest month
- 25.7°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where Johnson Siding sits across the climate record
Three NOAA fields for Johnson Siding's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 81%
- Among 6,861 stations, Johnson Siding sits in the cooler third of annual means.
- Annual precipitation
- Drier than 70%
- Johnson Siding's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- 47th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Johnson Siding compares across U.S. station-mapped locations
Johnson Siding's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
64 49th percentile score exceeds 49% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). This entry sits in this band.
- 70–80: 650 station-mapped locations (11%). Above this entry.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 39°F (4°C) | 12°F (-11°C) | 26°F (-4°C) | 0.4" | 30.5 | 0.0 |
| February | 39°F (4°C) | 14°F (-10°C) | 27°F (-3°C) | 0.5" | 27.5 | 0.0 |
| March | 48°F (9°C) | 21°F (-6°C) | 34°F (1°C) | 0.9" | 27.8 | 0.0 |
| April | 55°F (13°C) | 29°F (-2°C) | 42°F (6°C) | 2.4" | 19.7 | 0.0 |
| May | 64°F (18°C) | 39°F (4°C) | 51°F (11°C) | 4.2" | 7.4 | 0.2 |
| June | 75°F (24°C) | 47°F (8°C) | 61°F (16°C) | 3.6" | 0.4 | 1.9 |
| July | 83°F (28°C) | 54°F (12°C) | 68°F (20°C) | 3.5" | 0.0 | 7.8 |
| August | 81°F (27°C) | 52°F (11°C) | 67°F (19°C) | 2.1" | 0.0 | 5.1 |
| September | 73°F (23°C) | 43°F (6°C) | 58°F (15°C) | 1.4" | 2.6 | 1.4 |
| October | 59°F (15°C) | 32°F (0°C) | 45°F (7°C) | 1.6" | 15.7 | 0.0 |
| November | 48°F (9°C) | 21°F (-6°C) | 34°F (1°C) | 0.6" | 27.3 | 0.0 |
| December | 40°F (4°C) | 14°F (-10°C) | 27°F (-3°C) | 0.5" | 30.6 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 84°F around July 19, short of 90°F on every date, while 195 dates carry a normal low at or below freezing, the coldest 12°F near January 22.
The freezing stretch
The normal low stays at or below 32°F into April 26, then returns to freezing around October 15, covering 195 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
Where the wet dates fall
The likeliest wet date is May 30, when 32% of years recorded at least a hundredth of an inch. The driest is November 30 at 10%. Summed across the calendar, that is about 76 wet dates a year.
The widest day
September 4 carries the biggest normal gap between afternoon and dawn, 31°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Johnson Siding.
Where Johnson Siding Stands Nationally
Freezing is routine here by normals standards — the normal low reaches 32°F or colder on about 195 nights a year, more than most ranked stations.
Johnson Siding earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall
4.1 days with precipitation
4.5 days with precipitation
6.1 days with precipitation
8.5 days with precipitation
9.2 days with precipitation
8.9 days with precipitation
8.0 days with precipitation
7.3 days with precipitation
5.6 days with precipitation
6.4 days with precipitation
3.4 days with precipitation
3.4 days with precipitation
Johnson Siding runs a summer-peaked wet season
43% of Johnson Siding's yearly precipitation falls in June, July and August alone, against the 25% an evenly spread year would give those three months. The wettest month is May at 4.2", on a 42.6°F seasonal spread. Warm-season convection and, across the Southwest, the North American monsoon produce this shape: rain arrives in short heavy bursts during the hottest part of the year rather than as long cool-season soaking.
- Wettest three months: May, June, July, taking 52% of the annual total between them.
- Driest month: January at 0.4".
- Winter share: 6% falls in December, January and February.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A summer-peaked label means the June-August share reaches 35%; it describes timing across an average year, not any single season, and says nothing about how heavy an individual storm can be.
How Johnson Siding's precipitation splits across the calendar
About 75 days a year record measurable precipitation here, carrying 21.6" between them, or roughly 0.29 inches on a typical wet day. That sits in the middle band: neither the many-light-days pattern of the Pacific Northwest and the Great Lakes, nor the few-heavy-events pattern of the Gulf and the desert Southwest.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year and say nothing about the heaviest single storm on record.
Frost Dates & Growing Season
First Fall Freeze
September 25
50% probability date
Last Spring Freeze
May 20
50% probability date
Growing Season
128 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,540
Higher = more heating needed
Cooling Degree Days
301
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside SD closest to Johnson Siding on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (45°F here).
- Alfred, NY 45°F · 0.0°F off
- Big Sandy, MT 45°F · 0.0°F off
- Bradford, NH 45°F · 0.0°F off
- Brady, MT 45°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (21.6" here), excluding temperature-peer places.
- Soldotna, AK 21.6" · 0.0" off
- Mertzon, TX 21.6" · 0.0" off
- Raynesford, MT 21.6" · 0.0" off
- Cimarron, KS 21.6" · 0.0" off
Data-derived climate profile
How Johnson Siding's climate pattern fits together
heating led · moderate · mid swing
Johnson Siding's energy balance leans toward cold weather: 7,540 annual heating degree days against 301 for cooling. Its 42.6°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 128 days are frost-free in a normal year. That short interval is consistent with the cold-season signal, but the measure does not predict the exact first or last freeze in any one year.
July and January mark the typical warm and cold ends of the calendar in Johnson Siding's middle-range seasonal profile. The measured spread is 42.6°F. The annual average is 45°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Johnson Siding's 21.6 inches of annual precipitation falls in PlainClimate's middle band, so “wet” or “dry” is not the leading description. Snowfall is not added to the interpretation because its annual value is missing. Temperature balance and the calendar distribution carry more information than the annual moisture label alone.
These labels group NOAA 1991-2020 normals from Johnson Siding's primary station, so the winter figures are a thirty-year average and not a floor: a single hard season can run well below them. Treat each band as a descriptive range for Johnson Siding, not an official NOAA class or a year-ahead forecast.
Questions about Johnson Siding's climate
How much rain does Johnson Siding get? ▼
How cold does Johnson Siding get in winter? ▼
How much energy does heating and cooling require in Johnson Siding? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Johnson Siding's primary station: JOHNSON SIDING (USC00394343). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as a census-designated place (GEOID 4632820), not an incorporated municipality. Match rule for Johnson Siding: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for Johnson Siding comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.