Sisseton Muni, SD Climate: Temperature & Rain by Month
Annual temperature and rainfall from NOAA NCEI's 1991–2020 normals →; comfort score computed by PlainClimate
30-year climate normals (1991-2020) from Sisseton Muni's primary NOAA station, SISSETON MUNI AP.
The climate verdict for Sisseton Muni
Winter sets the terms in Sisseton Muni, South Dakota. A pronounced 58.1°F seasonal swing and heating demand above twice the cooling total frame an annual average of 44°F. At 49/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 18% of scores.
- 44°F
- yearly average temperature, NOAA normal
- 49/100
- comfort score, above 18% of station-mapped location scores
- 22.9"
- annual precipitation · 36" snow
- 150 days
- growing season, frost-free days
Sisseton Muni: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00094993 · Sisseton Muni, SD 44°F mean · 22.9" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-DRY · SWING-WIDE · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 44°F
- RANK-COOL #1,029
- PHOTO-FINISH ≈ Elk Rvr
- PRCP-DRY 22.9"
- SWING-WIDE 58°F
- COMF-LOW 49/100
- LOAD-HEAT 8,179 HDD
- STN-1 USW00094993
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Elk Rvr, MN (+ 0 °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.
- Sisseton (this station) 44°F
- Hot Lakefield, MN 44°F
- Near Elk Rvr, MN 44°F
- Near Sisseton, SD 44°F
- Near Glad Valley, SD 44°F
Climate Living Index · Sisseton Muni
Sisseton Muni: 30/100 · grade F
Sisseton Muni publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Sisseton Muni, not an official NOAA rating. Rankings still use Comfort Score 49/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 22.9 in · 12.1 from 35 in | 58/100 · C |
| Snowfall burden | 36.3 inches/year | 32/100 · F |
| Normal heat + freeze calendar | 173 calendar days | 30/100 · F |
| Frost-free season | 150 days/year | 25/100 · F |
| Annual temperature balance | 44.0°F · 23.5° from 67.5°F | 16/100 · F |
Sisseton Muni · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Sisseton Muni is a continental Köppen climate: Dfb
Coldest-month mean 13.3°F and warmest-month mean 71.4°F place this station in continental, no dry season, warm summer climates (Dfb). Class Dfb is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, no dry season, warm summer.
- Köppen code
- Dfb
- Group
- Continental
- Warmest month
- 71.4°F
- Coldest month
- 13.3°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 Sisseton Muni sits across the climate record
Three NOAA fields for Sisseton Muni's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 85%
- Among 6,861 stations, Sisseton Muni sits in the cooler third of annual means.
- Annual precipitation
- 32nd percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Wider than 96%
- Warmest-to-coldest month gap for Sisseton Muni is large versus 6,861 complete station-years.
How Sisseton Muni compares across U.S. station-mapped locations
Sisseton Muni's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
49 18th percentile score exceeds 18% 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%). This entry sits in this band.
- 50–60: 1,329 station-mapped locations (21%). Above this entry.
- 60–70: 1,236 station-mapped locations (20%). Above this entry.
- 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 | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 23°F (-5°C) | 4°F (-15°C) | 13°F (-10°C) | 0.6" | 6.2" | 30.4 | 0.0 |
| February | 27°F (-3°C) | 8°F (-13°C) | 18°F (-8°C) | 0.7" | 7.3" | 27.3 | 0.0 |
| March | 40°F (4°C) | 20°F (-6°C) | 30°F (-1°C) | 1.1" | 6.1" | 26.8 | 0.0 |
| April | 55°F (13°C) | 33°F (0°C) | 44°F (7°C) | 2.1" | 5.6" | 14.6 | 0.0 |
| May | 69°F (21°C) | 45°F (7°C) | 57°F (14°C) | 2.8" | 0.0" | 2.3 | 1.1 |
| June | 78°F (26°C) | 56°F (13°C) | 67°F (20°C) | 3.5" | 0.0" | 0.0 | 2.1 |
| July | 83°F (28°C) | 60°F (15°C) | 71°F (22°C) | 3.5" | 0.0" | 0.0 | 4.7 |
| August | 81°F (27°C) | 57°F (14°C) | 69°F (21°C) | 2.6" | 0.0" | 0.0 | 3.0 |
| September | 74°F (23°C) | 48°F (9°C) | 61°F (16°C) | 2.5" | 0.0" | 1.0 | 1.8 |
| October | 58°F (14°C) | 36°F (2°C) | 47°F (8°C) | 2.3" | 1.0" | 12.1 | 0.0 |
| November | 42°F (5°C) | 22°F (-5°C) | 32°F (0°C) | 0.6" | 4.6" | 24.5 | 0.0 |
| December | 28°F (-2°C) | 10°F (-12°C) | 19°F (-7°C) | 0.6" | 5.5" | 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 18, short of 90°F on every date, while 173 dates carry a normal low at or below freezing, the coldest 3°F near January 19.
The freezing stretch
The normal low stays at or below 32°F into April 14, then returns to freezing around October 25, covering 173 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 June 11, when 40% of years recorded at least a hundredth of an inch. The driest is November 12 at 20%. Summed across the calendar, that is about 108 wet dates a year.
The widest day
September 18 carries the biggest normal gap between afternoon and dawn, 26°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Sisseton Muni.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 6.2"
8.8 days with precipitation
Snow: 7.3"
8.0 days with precipitation
Snow: 6.1"
8.0 days with precipitation
Snow: 5.6"
9.1 days with precipitation
10.9 days with precipitation
12.1 days with precipitation
10.5 days with precipitation
9.6 days with precipitation
8.4 days with precipitation
Snow: 1.0"
8.9 days with precipitation
Snow: 4.6"
5.7 days with precipitation
Snow: 5.5"
8.3 days with precipitation
Sisseton Muni runs a summer-peaked wet season
42% of Sisseton Muni'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 June at 3.5", on a wide 58.1°F gap between its warmest and coldest month. 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: June, July, May, taking 43% of the annual total between them.
- Driest month: December at 0.6".
- Winter share: 8% 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 Sisseton Muni's precipitation splits across the calendar
About 108 days a year record measurable precipitation here, carrying 22.9" between them, or roughly 0.21 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.
Winter brings real snow to Sisseton Muni
Sisseton Muni averages 36.3 inches of snowfall a year, with February the snowiest month on the normals, spread across roughly 24 days that record measurable snow. That is depth accumulating on the ground, which is why it can exceed the annual precipitation figure: precipitation counts the liquid the snow melts down to, and fresh snow is mostly air.
- Annual snowfall: 36.3 inches of depth.
- Days recording measurable snow: about 24 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 16% of the year's precipitation.
NOAA 1991-2020 normals. The ten-to-one ratio is a convention, not a measurement: real ratios vary with temperature, so treat the share as an order of magnitude rather than an exact split.
Frost Dates & Growing Season
First Fall Freeze
September 30
50% probability date
Last Spring Freeze
May 3
50% probability date
Growing Season
150 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
8,179
Higher = more heating needed
Cooling Degree Days
566
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside SD closest to Sisseton Muni 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 (44°F here).
- Blair, WI 44°F · 0.0°F off
- Brockway, MT 44°F · 0.0°F off
- Dassel, MN 44°F · 0.0°F off
- Lakefield, MN 44°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (22.9" here), excluding temperature-peer places.
- Matador, TX 23.0" · 0.0" off
- Ashland, KS 23.0" · 0.1" off
- Argyle, MN 22.9" · 0.1" off
- Junction, TX 23.0" · 0.1" off
Snow and freeze rhythm
When cold and snow define Sisseton Muni
heating led · moderate · high swing
Winter and seasonal range jointly define this record. Sisseton Muni logs 8,179 heating degree days, more than twice its 566 cooling total, while the typical coldest-to-warmest-month gap reaches 58.1°F. The annual mean therefore compresses two materially different seasons.
Sisseton Muni's frost-free season lasts about 150 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
-
1. Sisseton Muni coldest normal
January
Averaging 13°F (-10°C), this month sits below freezing for the month as a whole, not merely overnight.
-
2. Sisseton Muni typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Sisseton Muni snow peak
February
Sisseton Muni averages 36.3 inches of snow a year, with February the snowiest month on the normals.
Questions about Sisseton Muni's climate
How much snow does Sisseton Muni get? ▼
How cold does Sisseton Muni get in winter? ▼
How much energy does heating and cooling require in Sisseton Muni? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Sisseton Muni's primary station: SISSETON MUNI AP (USW00094993). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for Sisseton Muni; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Sisseton Muni 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.