Mandan Exp Stn, ND 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 Mandan Exp Stn's primary NOAA station, MANDAN EXP STN.
The climate verdict for Mandan Exp Stn
Winter sets the terms in Mandan Exp Stn, North Dakota. A pronounced 57.7°F seasonal swing and heating demand above twice the cooling total frame an annual average of 42°F. At 40/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 6% of scores.
- 42°F
- yearly average temperature, NOAA normal
- 40/100
- comfort score, above 6% of station-mapped location scores
- 18.4"
- annual precipitation
- 137 days
- growing season, frost-free days
Mandan Exp Stn: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00325479 · Mandan Exp Stn, ND 42°F mean · 18.4" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-DRY · SWING-WIDE · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 42°F
- RANK-COOL #686
- PHOTO-FINISH ≈ Washburn
- PRCP-DRY 18.4"
- SWING-WIDE 58°F
- COMF-LOW 40/100
- LOAD-HEAT 8,674 HDD
- STN-1 USC00325479
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Washburn, ND ( -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 ND station list.
- Hot Edgeley, ND 43°F
- Near Alexandria, MN 43°F
- Mandan (this station) 42°F
- Cold Washburn, ND 42°F
- Near Keene, ND 42°F
Mandan Exp Stn sits in North Dakota, the #2 coldest U.S. state at 41.0°F statewide annual average - see all 50 coldest states ranked by NOAA normals
Climate Living Index · Mandan Exp Stn
Mandan Exp Stn: 21/100 · grade F
Mandan Exp Stn publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Mandan Exp Stn, not an official NOAA rating. Rankings still use Comfort Score 40/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 18.4 in · 16.6 from 35 in | 41/100 · D |
| Normal heat + freeze calendar | 188 calendar days | 21/100 · F |
| Frost-free season | 137 days/year | 17/100 · F |
| Annual temperature balance | 42.4°F · 25.1° from 67.5°F | 10/100 · F |
Mandan Exp Stn · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Mandan Exp Stn is a continental Köppen climate: Dfb
Coldest-month mean 12.6°F and warmest-month mean 70.3°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
- 70.3°F
- Coldest month
- 12.6°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 Mandan Exp Stn sits across the climate record
Three NOAA fields for Mandan Exp Stn's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 90%
- Among 6,861 stations, Mandan Exp Stn sits in the cooler third of annual means.
- Annual precipitation
- Drier than 75%
- Mandan Exp Stn's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Wider than 95%
- Warmest-to-coldest month gap for Mandan Exp Stn is large versus 6,861 complete station-years.
How Mandan Exp Stn compares across U.S. station-mapped locations
Mandan Exp Stn's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
40 6th percentile score exceeds 6% 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
Mandan Exp Stn's measured station temperature trend
MethodologyAcross 79 complete annual observations from 1916 to 2024, MANDAN EXP STN warmed at a fitted rate of 0.20°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Mandan Exp Stn primary station fitted change +0.20 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 23°F (-5°C) | 3°F (-16°C) | 13°F (-11°C) | 0.4" | 30.8 | 0.0 |
| February | 27°F (-3°C) | 6°F (-14°C) | 17°F (-8°C) | 0.4" | 27.7 | 0.0 |
| March | 40°F (4°C) | 18°F (-8°C) | 29°F (-2°C) | 0.6" | 28.3 | 0.0 |
| April | 54°F (12°C) | 30°F (-1°C) | 42°F (6°C) | 1.3" | 17.2 | 0.1 |
| May | 67°F (19°C) | 43°F (6°C) | 55°F (13°C) | 2.6" | 4.0 | 0.3 |
| June | 76°F (24°C) | 53°F (12°C) | 65°F (18°C) | 3.4" | 0.0 | 1.2 |
| July | 83°F (28°C) | 58°F (14°C) | 70°F (21°C) | 3.2" | 0.0 | 5.7 |
| August | 82°F (28°C) | 56°F (13°C) | 69°F (20°C) | 2.2" | 0.0 | 6.0 |
| September | 72°F (22°C) | 46°F (8°C) | 59°F (15°C) | 1.6" | 1.6 | 1.5 |
| October | 56°F (13°C) | 32°F (0°C) | 44°F (7°C) | 1.5" | 15.7 | 0.1 |
| November | 40°F (4°C) | 19°F (-7°C) | 30°F (-1°C) | 0.6" | 27.7 | 0.0 |
| December | 27°F (-3°C) | 8°F (-13°C) | 18°F (-8°C) | 0.5" | 30.9 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 84°F around July 28, short of 90°F on every date, while 188 dates carry a normal low at or below freezing, the coldest 2°F near January 17.
The freezing stretch
The normal low stays at or below 32°F into April 20, then returns to freezing around October 16, covering 188 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 36% of years recorded at least a hundredth of an inch. The driest is November 16 at 13%. Summed across the calendar, that is about 76 wet dates a year.
The widest day
August 25 carries the biggest normal gap between afternoon and dawn, 27°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Mandan Exp Stn.
Where Mandan Exp Stn Stands Nationally
Freezing is routine here by normals standards — the normal low reaches 32°F or colder on about 188 nights a year, more than most ranked stations.
Mandan Exp Stn 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
4.3 days with precipitation
4.1 days with precipitation
4.3 days with precipitation
6.4 days with precipitation
9.3 days with precipitation
10.7 days with precipitation
8.8 days with precipitation
6.8 days with precipitation
6.1 days with precipitation
6.0 days with precipitation
3.6 days with precipitation
4.7 days with precipitation
Mandan Exp Stn runs a summer-peaked wet season
48% of Mandan Exp Stn'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 3.4", on a wide 57.7°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 50% of the annual total between them.
- Driest month: January at 0.4".
- Winter share: 7% 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 Mandan Exp Stn's precipitation splits across the calendar
About 75 days a year record measurable precipitation here, carrying 18.4" between them, or roughly 0.24 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 27
50% probability date
Last Spring Freeze
May 13
50% probability date
Growing Season
137 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
8,674
Higher = more heating needed
Cooling Degree Days
482
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside ND closest to Mandan Exp Stn 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 (42°F here).
- Astoria, SD 42°F · 0.0°F off
- Chinook, MT 42°F · 0.0°F off
- Ridgeland, WI 42°F · 0.0°F off
- Ruth, NV 42°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (18.4" here), excluding temperature-peer places.
- Hulett, WY 18.4" · 0.0" off
- Lodi, CA 18.4" · 0.0" off
- Boise City, OK 18.3" · 0.0" off
- Lubbock, TX 18.3" · 0.0" off
Data-derived climate profile
How Mandan Exp Stn's climate pattern fits together
heating led · dry · high swing
Winter and seasonal range jointly define this record. Mandan Exp Stn logs 8,674 heating degree days, more than twice its 482 cooling total, while the typical coldest-to-warmest-month gap reaches 57.7°F. The annual mean therefore compresses two materially different seasons.
Only about 137 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 this dry, high-range record. The gap is 57.7°F, so a single annual figure is especially lossy; the annual average is 42°f. Compare monthly temperature and precipitation together before drawing a seasonal conclusion about Mandan Exp Stn.
Mandan Exp Stn's cold-season load does not imply a wet climate. Annual precipitation is 18.4 inches, which places the station in PlainClimate's dry range. Snowfall is not added to the interpretation because its annual value is missing. The snowfall and rainfall fields should be read separately rather than inferred from temperature.
These labels group NOAA 1991-2020 normals from Mandan Exp Stn'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 Mandan Exp Stn, not an official NOAA class or a year-ahead forecast.
Questions about Mandan Exp Stn's climate
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Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Mandan Exp Stn's primary station: MANDAN EXP STN (USC00325479). 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 Mandan Exp Stn; 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 Mandan Exp Stn 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.