PlainClimate
NOAA 1991–2020 normals 51°F annual avg Public-domain federal data

Bellefontaine, OH Climate

Average temperature, precipitation, and a comfort score, drawn from NOAA NCEI 1991–2020 normals →

51°F
Avg annual temp
64/100
Comfort score
42.6"
Annual precip
177d
Growing season

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

The climate verdict for Bellefontaine

Bellefontaine, Ohio averages 51°F a year and scores 64/100 on the comfort index - good, milder than 51% of U.S. cities.

51°F
average temperature, NOAA 1991-2020 normal
64/100
comfort score, milder than 51% of U.S. cities
42.6"
annual precipitation
177 days
growing season, frost-free days

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

Avg Temperature

51°F (10°C)

Avg High

60°F

Avg Low

41°F

Annual Precip

42.6"

Comfort Score

64/100

Good

Climate Comfort Score

64/100

Good

Avg Annual Temperature

51°F

30-year mean (NOAA NCEI)

Annual Precipitation

42.6"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Bellefontaine) 64.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Bellefontaine area.

How Bellefontaine compares to every U.S. city

Bellefontaine's comfort score vs. all U.S. cities

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

64 Top 49% higher than 51% 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%). Below this entry. 40–50: 1,302 US cities (19%). Below this entry. 50–60: 1,433 US cities (21%). Below this entry. 60–70: 1,357 US cities (20%). This entry sits in this band. 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 Bellefontaine

Methodology

Since 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. Bellefontaine'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 34°F (1°C) 18°F (-8°C) 26°F (-4°C)
February 37°F (3°C) 20°F (-7°C) 28°F (-2°C)
March 48°F (9°C) 29°F (-2°C) 38°F (3°C)
April 61°F (16°C) 39°F (4°C) 50°F (10°C)
May 71°F (22°C) 51°F (10°C) 61°F (16°C)
June 80°F (26°C) 60°F (16°C) 70°F (21°C)
July 83°F (28°C) 63°F (17°C) 73°F (23°C)
August 81°F (27°C) 62°F (16°C) 71°F (22°C)
September 76°F (24°C) 54°F (12°C) 65°F (18°C)
October 64°F (18°C) 43°F (6°C) 53°F (12°C)
November 50°F (10°C) 32°F (0°C) 41°F (5°C)
December 38°F (4°C) 24°F (-5°C) 31°F (-1°C)

Monthly Precipitation

Average monthly rainfall

January 3.0"

14.5 days with precipitation

February 2.5"

12.1 days with precipitation

March 3.2"

12.7 days with precipitation

April 4.1"

13.4 days with precipitation

May 4.3"

13.6 days with precipitation

June 5.0"

12.5 days with precipitation

July 4.5"

10.6 days with precipitation

August 3.9"

9.0 days with precipitation

September 3.2"

9.4 days with precipitation

October 2.8"

10.0 days with precipitation

November 3.1"

10.5 days with precipitation

December 3.1"

13.1 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

October 20

50% probability date

Last Spring Freeze

April 26

50% probability date

Growing Season

177 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

6,027

Higher = more heating needed

Cooling Degree Days

803

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

What Bellefontaine's climate means for you

Bellefontaine runs 51°F a year - peaking in July, coldest in January.

  • Gardeners get about 177 frost-free days, with the last spring freeze near April 26 - plan the planting calendar around it, not the regional average.
  • Energy bills track 6,027 heating and 803 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: Bellefontaine, OH

In Bellefontaine, Ohio, the NOAA 1991–2020 climate normals put the annual average temperature at 51°F, ranging from a mean daily high of 60°F to a mean daily low of 41°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00330563, these numbers smooth out year-to-year noise into a working baseline for a typical month.

Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Bellefontaine sees about 42.6 inches of precipitation a year, predominantly as rainfall. The frost-free season averages 177 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 26 and the first fall freeze near October 20. On the energy side, 6,027 heating degree days and 803 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Bellefontaine scores 64/100 (Good), 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 Bellefontaine, OH?
The average annual temperature in Bellefontaine, Ohio is 51°F. The warmest month averages 83°F (28°C) and the coldest averages 18°F (-8°C).
How much rain does Bellefontaine get?
Bellefontaine receives 42.6 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Bellefontaine?
Bellefontaine has a climate comfort score of 64/100 (Good), milder than 51% of U.S. cities in the PlainClimate database.
When is the growing season in Bellefontaine?
Bellefontaine has approximately 177 frost-free days per year, with the last spring freeze around April 26 and the first fall freeze around October 20.
How much energy does heating and cooling require in Bellefontaine?
Bellefontaine has 6,027 heating degree days and 803 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 Bellefontaine climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00330563 near Bellefontaine.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00330563. 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.