Blackduck, MN Climate: Temperature 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 Blackduck's primary NOAA station, BLACKDUCK.
The climate verdict for Blackduck
Winter sets the terms in Blackduck, Minnesota. A pronounced 61.2°F seasonal swing and heating demand above twice the cooling total frame an annual average of 38°F. July is the warmest month at 66°F and January the coldest at 5°F.
- 38°F
- annual average temperature (NOAA normal)
- 116 days
- frost-free days per growing season
Blackduck: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00210809 · Blackduck, MN 38°F mean
TEMP-COLD · RANK-COOL · PHOTO-FINISH · PRCP-UNK · SWING-WIDE · COMF-UNK · LOAD-HEAT · STN-1 · BOOK-PART
- TEMP-COLD 38°F
- RANK-COOL #206
- PHOTO-FINISH ≈ Littlefork
- PRCP-UNK Rain n/a
- SWING-WIDE 61°F
- COMF-UNK Comfort n/a
- LOAD-HEAT 10,094 HDD
- STN-1 USC00210809
- BOOK-PART 4/6 fields
Nearest mean-temperature peer: Littlefork, MN (+ 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 MN station list.
- Blackduck (this station) 38°F
- Cold Big Falls, MN 38°F
- Hot Ely, MN 38°F
- Near Littlefork, MN 38°F
- Near Clayton Lake, ME 38°F
Blackduck sits in Minnesota, the #3 coldest U.S. state at 42.2°F statewide annual average - see all 50 coldest states ranked by NOAA normals
Climate Living Index · Blackduck
Blackduck: 6/100 · grade F
Blackduck publishes 3 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 3 missing weights rescale to 100.
PlainClimate-derived for Blackduck, not an official NOAA rating. Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 202 calendar days | 13/100 · F |
| Frost-free season | 116 days/year | 5/100 · F |
| Annual temperature balance | 37.7°F · 29.8° from 67.5°F | 0/100 · F |
Blackduck · 2026-08-04 · NOAA NCEI Climate Normals · method .
National standing · heating-led station
Where Blackduck sits across the climate record
Available NOAA 1991–2020 fields for Blackduck are ranked only against stations that publish the same field, missing metrics stay blank rather than estimated.
- Annual temperature
- Cooler than 97%
- Among 6,861 stations, Blackduck sits in the cooler third of annual means.
- Seasonal temperature swing
- Wider than 98%
- Warmest-to-coldest month gap for Blackduck is large versus 6,861 complete station-years.
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 18°F (-8°C) | -9°F (-23°C) | 5°F (-15°C) | N/A | 31.0 | 0.0 |
| February | 24°F (-5°C) | -4°F (-20°C) | 10°F (-12°C) | N/A | 27.9 | 0.0 |
| March | 37°F (3°C) | 10°F (-12°C) | 23°F (-5°C) | N/A | 28.9 | 0.0 |
| April | 52°F (11°C) | 25°F (-4°C) | 38°F (3°C) | N/A | 23.4 | 0.0 |
| May | 65°F (18°C) | 38°F (3°C) | 51°F (11°C) | N/A | 6.2 | 0.0 |
| June | 74°F (23°C) | 49°F (9°C) | 61°F (16°C) | N/A | 0.3 | 0.1 |
| July | 78°F (26°C) | 54°F (12°C) | 66°F (19°C) | N/A | 0.0 | 0.9 |
| August | 77°F (25°C) | 51°F (11°C) | 64°F (18°C) | N/A | 0.1 | 0.6 |
| September | 68°F (20°C) | 42°F (6°C) | 55°F (13°C) | N/A | 3.0 | 0.0 |
| October | 53°F (12°C) | 31°F (-1°C) | 42°F (5°C) | N/A | 16.5 | 0.0 |
| November | 36°F (2°C) | 16°F (-9°C) | 26°F (-3°C) | N/A | 27.6 | 0.0 |
| December | 23°F (-5°C) | 1°F (-17°C) | 12°F (-11°C) | N/A | 31.0 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 79°F around July 24, short of 90°F on every date, while 202 dates carry a normal low at or below freezing, the coldest -10°F near January 21.
The freezing stretch
The normal low stays at or below 32°F into May 1, then returns to freezing around October 13, covering 202 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.
The widest day
February 6 carries the biggest normal gap between afternoon and dawn, 28°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Blackduck.
Where Blackduck Stands Nationally
Winters bite deep and often: the normal nightly low dips to freezing or below on around 202 nights a year, placing this among the most frost-prone tenth of ranked stations.
Blackduck 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
Frost Dates & Growing Season
First Fall Freeze
September 17
50% probability date
Last Spring Freeze
May 24
50% probability date
Growing Season
116 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
10,094
Higher = more heating needed
Cooling Degree Days
195
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside MN closest to Blackduck 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 (38°F here).
- Big Sky, MT 38°F · 0.0°F off
- Gunnison, CO 38°F · 0.0°F off
- Iliamna, AK 38°F · 0.0°F off
- Farson, WY 38°F · 0.1°F off
Data-derived climate profile
How Blackduck's climate pattern fits together
heating led · high swing
Winter and seasonal range jointly define this record. Blackduck logs 10,094 heating degree days, more than twice its 195 cooling total, while the typical coldest-to-warmest-month gap reaches 61.2°F. The annual mean therefore compresses two materially different seasons.
Only about 116 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.
Blackduck's calendar has a pronounced split: July and January mark the typical warm and cold ends of the calendar, with 61.2°F between them. The annual average is 38°F. That average is context, while the monthly highs, lows, and precipitation totals describe the lived parts of the year.
A moisture-range label is withheld because Blackduck's annual precipitation total is unavailable. Monthly source values remain visible where NOAA provides them, and no annual amount is reconstructed from incomplete data.
These labels group NOAA 1991-2020 normals from Blackduck'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 Blackduck, not an official NOAA class or a year-ahead forecast.
Questions about Blackduck's climate
How cold does Blackduck get in winter? ▼
How much energy does heating and cooling require in Blackduck? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Blackduck's primary station: BLACKDUCK (USC00210809). 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 an incorporated place (GEOID 2706256). Match rule for Blackduck: 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 Blackduck 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.