Sandy Lake Dam Libby, 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 Sandy Lake Dam Libby's primary NOAA station, SANDY LAKE DAM LIBBY.
The climate verdict for Sandy Lake Dam Libby
Winter sets the terms in Sandy Lake Dam Libby, Minnesota. A pronounced 59.7°F seasonal swing and heating demand above twice the cooling total frame an annual average of 41°F. July is the warmest month at 68°F and January the coldest at 9°F.
- 41°F
- average temperature, NOAA 1991-2020 normal
- 149 days
- frost-free growing season
Sandy Lake Dam Libby: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00217460 · Sandy Lake Dam Libby, MN 41°F mean
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-UNK · SWING-WIDE · COMF-UNK · LOAD-HEAT · STN-1 · BOOK-PART
- TEMP-COOL 41°F
- RANK-COOL #412
- PHOTO-FINISH ≈ Wolf Point
- PRCP-UNK Rain n/a
- SWING-WIDE 60°F
- COMF-UNK Comfort n/a
- LOAD-HEAT 9,225 HDD
- STN-1 USC00217460
- BOOK-PART 4/6 fields
Nearest mean-temperature peer: Wolf Point, MT (+ 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.
- Sandy Lake Dam… (this station) 41°F
- Hot Wilton, ND 41°F
- Near Wolf Point, MT 41°F
- Near Raymond Border, MT 41°F
- Cold Albion, MT 40°F
Sandy Lake Dam Libby 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 · Sandy Lake Dam Libby
Sandy Lake Dam Libby: 17/100 · grade F
Sandy Lake Dam Libby publishes 3 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 3 missing weights rescale to 100.
PlainClimate-derived for Sandy Lake Dam Libby, not an official NOAA rating. Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Frost-free season | 149 days/year | 24/100 · F |
| Normal heat + freeze calendar | 181 calendar days | 24/100 · F |
| Annual temperature balance | 40.5°F · 27.0° from 67.5°F | 6/100 · F |
Sandy Lake Dam Libby · 2026-08-04 · NOAA NCEI Climate Normals · method .
National standing · heating-led station
Where Sandy Lake Dam Libby sits across the climate record
Available NOAA 1991–2020 fields for Sandy Lake Dam Libby are ranked only against stations that publish the same field, missing metrics stay blank rather than estimated.
- Annual temperature
- Cooler than 94%
- Among 6,861 stations, Sandy Lake Dam Libby sits in the cooler third of annual means.
- Seasonal temperature swing
- Wider than 98%
- Warmest-to-coldest month gap for Sandy Lake Dam Libby is large versus 6,861 complete station-years.
Sandy Lake Dam Libby's measured station temperature trend
MethodologyAcross 42 complete annual observations from 1948 to 2025, SANDY LAKE DAM LIBBY warmed at a fitted rate of 0.22°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Sandy Lake Dam Libby primary station fitted change +0.22 °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 | 19°F (-7°C) | -2°F (-19°C) | 9°F (-13°C) | N/A | 31.0 | 0.0 |
| February | 25°F (-4°C) | 0°F (-18°C) | 13°F (-11°C) | N/A | 27.6 | 0.0 |
| March | 37°F (3°C) | 14°F (-10°C) | 26°F (-4°C) | N/A | 29.1 | 0.0 |
| April | 51°F (10°C) | 30°F (-1°C) | 40°F (5°C) | N/A | 20.0 | 0.0 |
| May | 65°F (18°C) | 43°F (6°C) | 54°F (12°C) | N/A | 3.0 | 0.0 |
| June | 74°F (23°C) | 53°F (12°C) | 64°F (18°C) | N/A | 0.0 | 0.7 |
| July | 78°F (26°C) | 58°F (14°C) | 68°F (20°C) | N/A | 0.0 | 1.9 |
| August | 77°F (25°C) | 56°F (13°C) | 67°F (19°C) | N/A | 0.0 | 0.9 |
| September | 69°F (20°C) | 48°F (9°C) | 58°F (15°C) | N/A | 1.2 | 0.1 |
| October | 54°F (12°C) | 35°F (1°C) | 44°F (7°C) | N/A | 13.6 | 0.0 |
| November | 37°F (3°C) | 22°F (-6°C) | 30°F (-1°C) | N/A | 25.7 | 0.0 |
| December | 24°F (-5°C) | 7°F (-14°C) | 15°F (-9°C) | N/A | 30.8 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 79°F around July 21, short of 90°F on every date, while 181 dates carry a normal low at or below freezing, the coldest -3°F near January 27.
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
February 15 carries the biggest normal gap between afternoon and dawn, 25°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Sandy Lake Dam Libby.
Where Sandy Lake Dam Libby 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.
Sandy Lake Dam Libby 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 3
50% probability date
Last Spring Freeze
May 7
50% probability date
Growing Season
149 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
9,225
Higher = more heating needed
Cooling Degree Days
339
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside MN closest to Sandy Lake Dam Libby 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 (41°F here).
- Alta, WY 41°F · 0.0°F off
- Dubois, WY 41°F · 0.0°F off
- Max, ND 41°F · 0.0°F off
- Ouzinkie, AK 41°F · 0.0°F off
Data-derived climate profile
How Sandy Lake Dam Libby's climate pattern fits together
heating led · high swing
Winter and seasonal range jointly define this record. Sandy Lake Dam Libby logs 9,225 heating degree days, more than twice its 339 cooling total, while the typical coldest-to-warmest-month gap reaches 59.7°F. The annual mean therefore compresses two materially different seasons.
Only about 149 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.
Sandy Lake Dam Libby's calendar has a pronounced split: July and January mark the typical warm and cold ends of the calendar, with 59.7°F between them. The annual average is 41°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 Sandy Lake Dam Libby'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 Sandy Lake Dam Libby'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 Sandy Lake Dam Libby, not an official NOAA class or a year-ahead forecast.
Questions about Sandy Lake Dam Libby's climate
How cold does Sandy Lake Dam Libby get in winter? ▼
How much energy does heating and cooling require in Sandy Lake Dam Libby? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Sandy Lake Dam Libby's primary station: SANDY LAKE DAM LIBBY (USC00217460). 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 Sandy Lake Dam Libby; 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 Sandy Lake Dam Libby 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.