Deep Portage, MN Climate: Temperature by Month
Pulled from NOAA NCEI 1991–2020 normals →: climate measurements used in PlainClimate's documented score
30-year climate normals (1991-2020) from Deep Portage's primary NOAA station, DEEP PORTAGE.
The climate verdict for Deep Portage
Winter sets the terms in Deep Portage, Minnesota. A pronounced 59.6°F seasonal swing and heating demand above twice the cooling total frame an annual average of 42°F. July is the warmest month at 69°F and January the coldest at 10°F.
- 42°F
- annual average temperature (NOAA normal)
- 153 days
- growing season, frost-free days
Deep Portage: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00212050 · Deep Portage, MN 42°F mean
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-UNK · SWING-WIDE · COMF-UNK · LOAD-HEAT · STN-1 · BOOK-PART
- TEMP-COOL 42°F
- RANK-COOL #617
- PHOTO-FINISH ≈ Riverdale
- PRCP-UNK Rain n/a
- SWING-WIDE 60°F
- COMF-UNK Comfort n/a
- LOAD-HEAT 8,802 HDD
- STN-1 USC00212050
- BOOK-PART 4/6 fields
Nearest mean-temperature peer: Riverdale, ND (+ 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 MN station list.
- Deep Portage (this station) 42°F
- Cold Rice, MN 42°F
- Hot Dickinson, ND 42°F
- Near Riverdale, ND 42°F
- Near Milaca, MN 42°F
Deep Portage 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 · Deep Portage
Deep Portage: 21/100 · grade F
Deep Portage publishes 3 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 3 missing weights rescale to 100.
PlainClimate-derived for Deep Portage, not an official NOAA rating. Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 174 calendar days | 29/100 · F |
| Frost-free season | 153 days/year | 28/100 · F |
| Annual temperature balance | 41.8°F · 25.7° from 67.5°F | 9/100 · F |
Deep Portage · 2026-08-04 · NOAA NCEI Climate Normals · method .
National standing · heating-led station
Where Deep Portage sits across the climate record
Available NOAA 1991–2020 fields for Deep Portage are ranked only against stations that publish the same field, missing metrics stay blank rather than estimated.
- Annual temperature
- Cooler than 91%
- Among 6,861 stations, Deep Portage sits in the cooler third of annual means.
- Seasonal temperature swing
- Wider than 98%
- Warmest-to-coldest month gap for Deep Portage 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 | 19°F (-7°C) | 1°F (-17°C) | 10°F (-12°C) | N/A | 30.8 | 0.0 |
| February | 25°F (-4°C) | 4°F (-15°C) | 15°F (-9°C) | N/A | 27.6 | 0.0 |
| March | 38°F (3°C) | 18°F (-8°C) | 28°F (-2°C) | N/A | 27.7 | 0.0 |
| April | 52°F (11°C) | 31°F (0°C) | 42°F (5°C) | N/A | 18.6 | 0.0 |
| May | 66°F (19°C) | 44°F (7°C) | 55°F (13°C) | N/A | 3.6 | 0.3 |
| June | 75°F (24°C) | 55°F (13°C) | 65°F (18°C) | N/A | 0.0 | 0.6 |
| July | 80°F (27°C) | 59°F (15°C) | 69°F (21°C) | N/A | 0.0 | 2.9 |
| August | 78°F (25°C) | 57°F (14°C) | 67°F (19°C) | N/A | 0.0 | 0.6 |
| September | 68°F (20°C) | 48°F (9°C) | 58°F (15°C) | N/A | 1.3 | 0.3 |
| October | 54°F (12°C) | 36°F (2°C) | 45°F (7°C) | N/A | 13.5 | 0.0 |
| November | 37°F (3°C) | 23°F (-5°C) | 30°F (-1°C) | N/A | 25.1 | 0.0 |
| December | 25°F (-4°C) | 11°F (-12°C) | 18°F (-8°C) | N/A | 30.8 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 80°F around July 17, short of 90°F on every date, while 174 dates carry a normal low at or below freezing, the coldest -1°F near January 24.
The freezing stretch
The normal low stays at or below 32°F into April 17, then returns to freezing around October 27, covering 174 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
May 5 carries the biggest normal gap between afternoon and dawn, 23°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Deep Portage.
Where Deep Portage Stands Nationally
Days and nights track unusually close together; the widest normal swing, about 23°F, is narrower than most stations record.
Deep Portage 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
October 5
50% probability date
Last Spring Freeze
May 5
50% probability date
Growing Season
153 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
8,802
Higher = more heating needed
Cooling Degree Days
398
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside MN closest to Deep Portage 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).
- Big Bay, MI 42°F · 0.0°F off
- Eureka, SD 42°F · 0.0°F off
- Lamoille, NV 42°F · 0.0°F off
- Medford, WI 42°F · 0.0°F off
Data-derived climate profile
How Deep Portage's climate pattern fits together
heating led · high swing
Winter and seasonal range jointly define this record. Deep Portage logs 8,802 heating degree days, more than twice its 398 cooling total, while the typical coldest-to-warmest-month gap reaches 59.6°F. The annual mean therefore compresses two materially different seasons.
Deep Portage's frost-free season lasts about 153 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
Deep Portage's calendar has a pronounced split: July and January mark the typical warm and cold ends of the calendar, with 59.6°F between them. The annual average is 42°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 Deep Portage'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 Deep Portage'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 Deep Portage, not an official NOAA class or a year-ahead forecast.
Questions about Deep Portage's climate
How cold does Deep Portage get in winter? ▼
How much energy does heating and cooling require in Deep Portage? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Deep Portage's primary station: DEEP PORTAGE (USC00212050). 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 Deep Portage; 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 Deep Portage 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.