Climate Comfort Score
39/100
Below Average
NOAA 1991–2020 normals 43°F annual avg Public-domain federal data
Heart Butte Dam, ND Climate
Average temperature, precipitation, and a comfort score, drawn from NOAA NCEI 1991–2020 normals →
- 43°F
- Avg annual temp
- 39/100
- Comfort score
- 16.8"
- Annual precip
- 138d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Heart Butte Dam
Heart Butte Dam, North Dakota averages 43°F a year and scores 39/100 on the comfort index - below average, milder than 4% of U.S. cities.
- 43°F
- annual average temperature (NOAA normal)
- 39/100
- comfort score, milder than 4% of U.S. cities
- 16.8"
- annual precipitation · 38" snow
- 138 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
43°F (6°C)
Avg High
55°F
Avg Low
30°F
Annual Precip
16.8"
Annual Snow
37.7"
Comfort Score
39/100
Below Average
Avg Annual Temperature
43°F
30-year mean (NOAA NCEI)
Annual Precipitation
16.8"
Plus 37.7" of snow
Comfort score vs national 100-point ceiling (Heart Butte Dam) 39.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Below Average for the Heart Butte Dam area.
How Heart Butte Dam compares to every U.S. city
Heart Butte Dam'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
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 Heart Butte Dam
MethodologyZooming out from Heart Butte Dam's own normal, the chart below shows how the U.S. land temperature anomaly has tracked the global mean since 1900 - the most recent decade sits warmer than the 30-year mean shown here.
- 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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 25°F (-4°C) | 3°F (-16°C) | 14°F (-10°C) | 0.5" | 7.3" | 30.9 | 0.0 |
| February | 29°F (-2°C) | 6°F (-14°C) | 18°F (-8°C) | 0.4" | 5.3" | 27.8 | 0.0 |
| March | 41°F (5°C) | 17°F (-8°C) | 29°F (-2°C) | 0.7" | 5.3" | 29.1 | 0.0 |
| April | 55°F (13°C) | 29°F (-2°C) | 42°F (5°C) | 1.4" | 4.7" | 19.6 | 0.1 |
| May | 66°F (19°C) | 41°F (5°C) | 54°F (12°C) | 2.1" | 0.6" | 4.8 | 0.3 |
| June | 76°F (25°C) | 52°F (11°C) | 64°F (18°C) | 3.3" | 0.0" | 0.0 | 1.6 |
| July | 84°F (29°C) | 57°F (14°C) | 70°F (21°C) | 2.7" | 0.0" | 0.0 | 7.6 |
| August | 83°F (28°C) | 55°F (13°C) | 69°F (20°C) | 1.7" | 0.0" | 0.0 | 7.9 |
| September | 73°F (23°C) | 45°F (7°C) | 59°F (15°C) | 1.6" | 0.0" | 1.6 | 2.3 |
| October | 57°F (14°C) | 32°F (0°C) | 44°F (7°C) | 1.3" | 2.5" | 16.4 | 0.2 |
| November | 41°F (5°C) | 19°F (-7°C) | 30°F (-1°C) | 0.6" | 6.2" | 28.1 | 0.0 |
| December | 30°F (-1°C) | 9°F (-13°C) | 19°F (-7°C) | 0.4" | 5.8" | 30.9 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 0.5"
Snow: 7.3"
6.2 days with precipitation
February 0.4"
Snow: 5.3"
6.3 days with precipitation
March 0.7"
Snow: 5.3"
7.1 days with precipitation
April 1.4"
Snow: 4.7"
8.1 days with precipitation
May 2.1"
Snow: 0.6"
10.8 days with precipitation
June 3.3"
11.0 days with precipitation
July 2.7"
9.1 days with precipitation
August 1.7"
6.8 days with precipitation
September 1.6"
6.9 days with precipitation
October 1.3"
Snow: 2.5"
6.8 days with precipitation
November 0.6"
Snow: 6.2"
5.0 days with precipitation
December 0.4"
Snow: 5.8"
6.4 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
September 29
50% probability date
Last Spring Freeze
May 14
50% probability date
Growing Season
138 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
8,599
Higher = more heating needed
Cooling Degree Days
477
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Heart Butte Dam's climate means for you
Heart Butte Dam runs 43°F a year - peaking in July, coldest in January.
- Gardeners get about 138 frost-free days, with the last spring freeze near May 14 - plan the planting calendar around it, not the regional average.
- Energy bills track 8,599 heating and 477 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: Heart Butte Dam, ND
In Heart Butte Dam, North Dakota, the NOAA 1991–2020 climate normals put the annual average temperature at 43°F, ranging from a mean daily high of 55°F to a mean daily low of 30°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00324091, these numbers smooth out year-to-year noise into a working baseline for a typical month.
Heart Butte Dam averages 16.8 inches of precipitation a year, with 37.7 inches typically falling as snow, and that matters as much to daily life here as temperature does. The frost-free season averages 138 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 14 and the first fall freeze near September 29. As for energy demand, 8,599 heating degree days and 477 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Heart Butte Dam 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 Heart Butte Dam, ND? ▼
The average annual temperature in Heart Butte Dam, North Dakota is 43°F. The warmest month averages 84°F (29°C) and the coldest averages 3°F (-16°C).
How much rain does Heart Butte Dam get? ▼
Heart Butte Dam receives 16.8 inches of precipitation annually, including 37.7 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Heart Butte Dam? ▼
Heart Butte Dam 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 Heart Butte Dam? ▼
Heart Butte Dam has approximately 138 frost-free days per year, with the last spring freeze around May 14 and the first fall freeze around September 29.
How much energy does heating and cooling require in Heart Butte Dam? ▼
Heart Butte Dam has 8,599 heating degree days and 477 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 Heart Butte Dam climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00324091 near Heart Butte Dam.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00324091. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
Related
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.