PlainClimate
NOAA 1991–2020 normals 41°F annual avg Public-domain federal data

Sandy Lake Dam Libby, MN Climate

Pulled from NOAA NCEI 1991–2020 normals →: average temperature, precipitation, and comfort score

41°F
Avg annual temp
39/100
Comfort score
149d
Growing season

30-year climate normals from 1 weather station (1991-2020).

The climate verdict for Sandy Lake Dam Libby

Sandy Lake Dam Libby, Minnesota averages 41°F a year and scores 39/100 on the comfort index - below average, milder than 4% of U.S. cities.

41°F
average temperature, NOAA 1991-2020 normal
39/100
comfort score, milder than 4% of U.S. cities
149 days
frost-free growing season

Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.

Avg Temperature

41°F (5°C)

Avg High

51°F

Avg Low

30°F

Annual Precip

N/A

Comfort Score

39/100

Below Average

Climate Comfort Score

39/100

Below Average

Avg Annual Temperature

41°F

30-year mean (NOAA NCEI)

Annual Precipitation

N/A

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Sandy Lake Dam Libby) 39.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Below Average for the Sandy Lake Dam Libby area.

How Sandy Lake Dam Libby compares to every U.S. city

Sandy Lake Dam Libby's comfort score vs. all U.S. cities

PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals

39 Top 96% higher than 4% of 6,915 US cities

0–10: 0 US cities (0%). Below this entry. 10–20: 0 US cities (0%). Below this entry. 20–30: 58 US cities (1%). Below this entry. 30–40: 439 US cities (6%). This entry sits in this band. 40–50: 1,302 US cities (19%). Above this entry. 50–60: 1,433 US cities (21%). Above this entry. 60–70: 1,357 US cities (20%). Above this entry. 70–80: 1,102 US cities (16%). Above this entry. 80–90: 778 US cities (11%). Above this entry. 90–100: 420 US cities (6%). Above this entry. This city 0 100 every U.S. city, bucketed by value

Each bar is a band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020

Warming context for Sandy Lake Dam Libby

Methodology

Since 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. Sandy Lake Dam Libby's current NOAA 1991-2020 normal sits within that longer spread, and the most recent decade runs warmer than the 30-year mean.

Warming context, U.S. vs global, with Paris reference lines Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • United States land mean (NOAA NCEI) +0.11 °C/decade
  • Global anomaly (NASA GISTEMP) +0.11 °C/decade
  • Paris Agreement thresholds 1.5°C / 2.0°C
Sources: NOAA NCEI, NASA GISTEMP. Paris thresholds per IPCC AR6 WG1.

Monthly Temperatures

Average daily high and low temperatures by month

Month Avg High Avg Low Mean
January 19°F (-7°C) -2°F (-19°C) 9°F (-13°C)
February 25°F (-4°C) 0°F (-18°C) 13°F (-11°C)
March 37°F (3°C) 14°F (-10°C) 26°F (-4°C)
April 51°F (10°C) 30°F (-1°C) 40°F (5°C)
May 65°F (18°C) 43°F (6°C) 54°F (12°C)
June 74°F (23°C) 53°F (12°C) 64°F (18°C)
July 78°F (26°C) 58°F (14°C) 68°F (20°C)
August 77°F (25°C) 56°F (13°C) 67°F (19°C)
September 69°F (20°C) 48°F (9°C) 58°F (15°C)
October 54°F (12°C) 35°F (1°C) 44°F (7°C)
November 37°F (3°C) 22°F (-6°C) 30°F (-1°C)
December 24°F (-5°C) 7°F (-14°C) 15°F (-9°C)

Monthly Precipitation

Average monthly rainfall

January N/A
February N/A
March N/A
April N/A
May N/A
June N/A
July N/A
August N/A
September N/A
October N/A
November N/A
December N/A

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

What Sandy Lake Dam Libby's climate means for you

Sandy Lake Dam Libby runs 41°F a year - peaking in July, coldest in January.

  • Gardeners get about 149 frost-free days, with the last spring freeze near May 7 - plan the planting calendar around it, not the regional average.
  • Energy bills track 9,225 heating and 339 cooling degree days a year, higher means the furnace or AC runs more.
  • Comparing places to live? Line this city up against nearby cities and the national rankings. See rankings

These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.

Climate Guides

Climate Insight: Sandy Lake Dam Libby, MN

Sandy Lake Dam Libby, Minnesota runs an annual average of 41°F, ranging from a mean daily high of 51°F to a mean daily low of 30°F, per NOAA's 1991–2020 climate normals. July is typically the warmest month of the year, while January is the coldest. Drawn from station USC00217460, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.

Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Sandy Lake Dam Libby sees about an uncharted amount of precipitation a year, predominantly as rainfall. The frost-free season averages 149 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 7 and the first fall freeze near October 3. On the energy side, 9,225 heating degree days and 339 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Sandy Lake Dam Libby scores 39/100 (Below Average), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. For planning purposes, look to the monthly tables above: shoulder seasons bring the mildest highs and lows, summer brings July-driven heat, and deep winter brings January-driven cold. Treat every figure here as a thirty-year average rather than a forecast - individual years routinely run warmer, cooler, wetter, or drier than the normal.

Frequently Asked Questions

What is the average temperature in Sandy Lake Dam Libby, MN?
The average annual temperature in Sandy Lake Dam Libby, Minnesota is 41°F. The warmest month averages 78°F (26°C) and the coldest averages -2°F (-19°C).
How much rain does Sandy Lake Dam Libby get?
Sandy Lake Dam Libby receives an unknown amount of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Sandy Lake Dam Libby?
Sandy Lake Dam Libby has a climate comfort score of 39/100 (Below Average), milder than 4% of U.S. cities in the PlainClimate database.
When is the growing season in Sandy Lake Dam Libby?
Sandy Lake Dam Libby has approximately 149 frost-free days per year, with the last spring freeze around May 7 and the first fall freeze around October 3.
How much energy does heating and cooling require in Sandy Lake Dam Libby?
Sandy Lake Dam Libby has 9,225 heating degree days and 339 cooling degree days annually, a heating-dominated climate. See our <a href="/guides/reading-weather-data/" class="underline hover:text-brand-600">guide to reading weather data</a> for what these figures mean.
Where does this Sandy Lake Dam Libby climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00217460 near Sandy Lake Dam Libby.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00217460. For informational purposes only.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial

Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.