Climate Comfort Score
59/100
Moderate
NOAA 1991–2020 normals 48°F annual avg Public-domain federal data
Belle Plaine, IA Climate
Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →
- 48°F
- Avg annual temp
- 59/100
- Comfort score
- 36.0"
- Annual precip
- 165d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Belle Plaine
Belle Plaine, Iowa averages 48°F a year and scores 59/100 on the comfort index - moderate, milder than 39% of U.S. cities.
- 48°F
- yearly average temperature, NOAA normal
- 59/100
- comfort score, milder than 39% of U.S. cities
- 36.0"
- annual precipitation · 28" snow
- 165 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
48°F (9°C)
Avg High
59°F
Avg Low
38°F
Annual Precip
36.0"
Annual Snow
27.9"
Comfort Score
59/100
Moderate
Avg Annual Temperature
48°F
30-year mean (NOAA NCEI)
Annual Precipitation
36.0"
Plus 27.9" of snow
Comfort score vs national 100-point ceiling (Belle Plaine) 59.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Belle Plaine area.
How Belle Plaine compares to every U.S. city
Belle Plaine's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
59 Top 61% higher than 39% 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 Belle Plaine
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Belle Plaine captures average conditions across the spread shown, the most recent decade is warmer than the 30-year mean.
- 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 | 28°F (-2°C) | 10°F (-12°C) | 19°F (-7°C) | 1.1" | 7.8" | 30.3 | 0.0 |
| February | 33°F (0°C) | 14°F (-10°C) | 24°F (-5°C) | 1.3" | 7.4" | 26.6 | 0.0 |
| March | 46°F (8°C) | 26°F (-3°C) | 36°F (2°C) | 2.0" | 3.4" | 23.7 | 0.0 |
| April | 60°F (16°C) | 37°F (3°C) | 49°F (9°C) | 3.7" | 0.8" | 10.0 | 0.0 |
| May | 71°F (22°C) | 49°F (10°C) | 60°F (16°C) | 4.4" | 0.0" | 0.9 | 0.4 |
| June | 80°F (27°C) | 60°F (15°C) | 70°F (21°C) | 5.2" | 0.0" | 0.0 | 2.8 |
| July | 84°F (29°C) | 63°F (17°C) | 73°F (23°C) | 4.1" | 0.0" | 0.0 | 5.9 |
| August | 82°F (28°C) | 60°F (16°C) | 71°F (22°C) | 4.1" | 0.0" | 0.0 | 3.4 |
| September | 76°F (24°C) | 51°F (11°C) | 64°F (18°C) | 3.5" | 0.0" | 0.7 | 1.5 |
| October | 63°F (17°C) | 39°F (4°C) | 51°F (11°C) | 2.9" | 0.4" | 9.7 | 0.1 |
| November | 47°F (8°C) | 27°F (-3°C) | 37°F (3°C) | 2.1" | 1.8" | 22.3 | 0.0 |
| December | 34°F (1°C) | 17°F (-8°C) | 25°F (-4°C) | 1.6" | 6.3" | 29.1 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 1.1"
Snow: 7.8"
6.3 days with precipitation
February 1.3"
Snow: 7.4"
6.4 days with precipitation
March 2.0"
Snow: 3.4"
7.3 days with precipitation
April 3.7"
Snow: 0.8"
10.2 days with precipitation
May 4.4"
11.8 days with precipitation
June 5.2"
11.5 days with precipitation
July 4.1"
8.1 days with precipitation
August 4.1"
8.8 days with precipitation
September 3.5"
7.4 days with precipitation
October 2.9"
Snow: 0.4"
8.2 days with precipitation
November 2.1"
Snow: 1.8"
6.4 days with precipitation
December 1.6"
Snow: 6.3"
6.8 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
October 10
50% probability date
Last Spring Freeze
April 28
50% probability date
Growing Season
165 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
6,868
Higher = more heating needed
Cooling Degree Days
785
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Belle Plaine's climate means for you
Belle Plaine runs 48°F a year - peaking in July, coldest in January.
- Gardeners get about 165 frost-free days, with the last spring freeze near April 28 - plan the planting calendar around it, not the regional average.
- Energy bills track 6,868 heating and 785 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: Belle Plaine, IA
Belle Plaine, Iowa runs an annual average of 48°F, ranging from a mean daily high of 59°F to a mean daily low of 38°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 USC00130600, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.
Anyone planning to live, garden, or travel in Belle Plaine should weigh precipitation alongside temperature: the annual average runs 36.0 inches, with 27.9 inches typically falling as snow. The frost-free season averages 165 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 28 and the first fall freeze near October 10. And on the energy front, 6,868 heating degree days and 785 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Belle Plaine scores 59/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above turn that into a planning tool: expect the mildest highs and lows in the shoulder seasons, July-driven heat at the peak of summer, and January-driven cold at the depth of winter. Every number here is a thirty-year average, not a forecast, so any given year can and does run warmer, cooler, wetter, or drier than the normal.
Frequently Asked Questions
What is the average temperature in Belle Plaine, IA? ▼
The average annual temperature in Belle Plaine, Iowa is 48°F. The warmest month averages 84°F (29°C) and the coldest averages 10°F (-12°C).
How much rain does Belle Plaine get? ▼
Belle Plaine receives 36.0 inches of precipitation annually, including 27.9 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Belle Plaine? ▼
Belle Plaine has a climate comfort score of 59/100 (Moderate), milder than 39% of U.S. cities in the PlainClimate database.
When is the growing season in Belle Plaine? ▼
Belle Plaine has approximately 165 frost-free days per year, with the last spring freeze around April 28 and the first fall freeze around October 10.
How much energy does heating and cooling require in Belle Plaine? ▼
Belle Plaine has 6,868 heating degree days and 785 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 Belle Plaine climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00130600 near Belle Plaine.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00130600. 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.