Thief Rvr Falls, MN Climate: Temperature 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 Thief Rvr Falls's primary NOAA station, THIEF RVR FALLS 2.
The climate verdict for Thief Rvr Falls
Winter sets the terms in Thief Rvr Falls, Minnesota. A pronounced 62.9°F seasonal swing and heating demand above twice the cooling total frame an annual average of 40°F. July is the warmest month at 68°F and January the coldest at 5°F.
- 40°F
- annual average temperature (NOAA normal)
- 137 days
- frost-free days per growing season
Thief Rvr Falls: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00218247 · Thief Rvr Falls, MN 40°F mean
TEMP-COLD · RANK-COOL · PHOTO-FINISH · PRCP-UNK · SWING-WIDE · COMF-UNK · LOAD-HEAT · STN-1 · BOOK-PART
- TEMP-COLD 40°F
- RANK-COOL #343
- PHOTO-FINISH ≈ Mahnomen
- PRCP-UNK Rain n/a
- SWING-WIDE 63°F
- COMF-UNK Comfort n/a
- LOAD-HEAT 9,473 HDD
- STN-1 USC00218247
- BOOK-PART 4/6 fields
Nearest mean-temperature peer: Mahnomen, 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 MN station list.
- Thief Rvr Falls (this station) 40°F
- Hot Cass Lake, MN 40°F
- Near Mahnomen, MN 40°F
- Near Towner, ND 40°F
- Near Ada, MN 40°F
Thief Rvr Falls 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 · Thief Rvr Falls
Thief Rvr Falls: 15/100 · grade F
Thief Rvr Falls publishes 3 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 3 missing weights rescale to 100.
PlainClimate-derived for Thief Rvr Falls, not an official NOAA rating. Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 181 calendar days | 24/100 · F |
| Frost-free season | 137 days/year | 17/100 · F |
| Annual temperature balance | 39.9°F · 27.6° from 67.5°F | 4/100 · F |
Thief Rvr Falls · 2026-08-04 · NOAA NCEI Climate Normals · method .
National standing · heating-led station
Where Thief Rvr Falls sits across the climate record
Available NOAA 1991–2020 fields for Thief Rvr Falls are ranked only against stations that publish the same field, missing metrics stay blank rather than estimated.
- Annual temperature
- Cooler than 95%
- Among 6,861 stations, Thief Rvr Falls sits in the cooler third of annual means.
- Seasonal temperature swing
- Wider than 99%
- Warmest-to-coldest month gap for Thief Rvr Falls 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 | 14°F (-10°C) | -3°F (-19°C) | 5°F (-15°C) | N/A | 30.9 | 0.0 |
| February | 20°F (-6°C) | 2°F (-17°C) | 11°F (-12°C) | N/A | 27.4 | 0.0 |
| March | 35°F (2°C) | 16°F (-9°C) | 25°F (-4°C) | N/A | 28.1 | 0.0 |
| April | 53°F (12°C) | 30°F (-1°C) | 42°F (5°C) | N/A | 18.7 | 0.0 |
| May | 68°F (20°C) | 42°F (6°C) | 55°F (13°C) | N/A | 5.1 | 0.3 |
| June | 76°F (24°C) | 53°F (12°C) | 65°F (18°C) | N/A | 0.0 | 1.0 |
| July | 80°F (27°C) | 57°F (14°C) | 68°F (20°C) | N/A | 0.0 | 1.9 |
| August | 79°F (26°C) | 55°F (13°C) | 67°F (20°C) | N/A | 0.1 | 1.8 |
| September | 69°F (21°C) | 47°F (8°C) | 58°F (14°C) | N/A | 1.7 | 0.5 |
| October | 53°F (12°C) | 35°F (1°C) | 44°F (7°C) | N/A | 13.5 | 0.0 |
| November | 34°F (1°C) | 19°F (-7°C) | 27°F (-3°C) | N/A | 25.9 | 0.0 |
| December | 20°F (-7°C) | 5°F (-15°C) | 12°F (-11°C) | N/A | 30.8 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 81°F around July 29, short of 90°F on every date, while 181 dates carry a normal low at or below freezing, the coldest -4°F near January 20.
The freezing stretch
The normal low stays at or below 32°F into April 20, then returns to freezing around October 23, covering 181 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 13 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 Thief Rvr Falls.
Where Thief Rvr Falls Stands Nationally
Freezing is routine here by normals standards — the normal low reaches 32°F or colder on about 181 nights a year, more than most ranked stations.
Thief Rvr Falls 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 28
50% probability date
Last Spring Freeze
May 14
50% probability date
Growing Season
137 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
9,473
Higher = more heating needed
Cooling Degree Days
382
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside MN closest to Thief Rvr Falls 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 (40°F here).
- Sand Point, AK 40°F · 0.0°F off
- Towner, ND 40°F · 0.0°F off
- Carrington, ND 40°F · 0.1°F off
- Grand Forks, ND 40°F · 0.1°F off
Data-derived climate profile
How Thief Rvr Falls's climate pattern fits together
heating led · high swing
Winter and seasonal range jointly define this record. Thief Rvr Falls logs 9,473 heating degree days, more than twice its 382 cooling total, while the typical coldest-to-warmest-month gap reaches 62.9°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.
Thief Rvr Falls's calendar has a pronounced split: July and January mark the typical warm and cold ends of the calendar, with 62.9°F between them. The annual average is 40°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 Thief Rvr Falls'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 Thief Rvr Falls'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 Thief Rvr Falls, not an official NOAA class or a year-ahead forecast.
Questions about Thief Rvr Falls's climate
How cold does Thief Rvr Falls get in winter? ▼
How much energy does heating and cooling require in Thief Rvr Falls? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Thief Rvr Falls's primary station: THIEF RVR FALLS 2 (USC00218247). 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 Thief Rvr Falls; 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 Thief Rvr Falls 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.