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

Winchester Airport, IN Climate

Annual temperature, rainfall, and a comfort score, sourced from NOAA NCEI's 1991–2020 normals →

51°F
Avg annual temp
68/100
Comfort score
40.1"
Annual precip
184d
Growing season

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

The climate verdict for Winchester Airport

Winchester Airport, Indiana averages 51°F a year and scores 68/100 on the comfort index - good, milder than 58% of U.S. cities.

51°F
yearly average temperature, NOAA normal
68/100
comfort score, milder than 58% of U.S. cities
40.1"
yearly precipitation total
184 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

51°F (10°C)

Avg High

60°F

Avg Low

41°F

Annual Precip

40.1"

Comfort Score

68/100

Good

Climate Comfort Score

68/100

Good

Avg Annual Temperature

51°F

30-year mean (NOAA NCEI)

Annual Precipitation

40.1"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Winchester Airport) 68.0%
National median (63)

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

How Winchester Airport compares to every U.S. city

Winchester Airport's comfort score vs. all U.S. cities

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

68 Top 42% higher than 58% 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 Winchester Airport

Methodology

Since 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. Winchester Airport'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 33°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) 39°F (4°C)
April 61°F (16°C) 40°F (5°C) 50°F (10°C)
May 71°F (22°C) 52°F (11°C) 62°F (16°C)
June 79°F (26°C) 61°F (16°C) 70°F (21°C)
July 83°F (28°C) 64°F (18°C) 73°F (23°C)
August 81°F (27°C) 61°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 (3°C) 24°F (-5°C) 31°F (-1°C)

Monthly Precipitation

Average monthly rainfall

January 2.7"

10.4 days with precipitation

February 2.1"

8.8 days with precipitation

March 2.9"

10.9 days with precipitation

April 4.0"

12.9 days with precipitation

May 4.4"

13.1 days with precipitation

June 4.8"

11.6 days with precipitation

July 3.9"

10.0 days with precipitation

August 3.5"

8.9 days with precipitation

September 3.0"

8.3 days with precipitation

October 3.1"

8.5 days with precipitation

November 3.2"

10.3 days with precipitation

December 2.3"

10.6 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

October 21

50% probability date

Last Spring Freeze

April 20

50% probability date

Growing Season

184 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

5,983

Higher = more heating needed

Cooling Degree Days

830

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

What Winchester Airport's climate means for you

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

  • Gardeners get about 184 frost-free days, with the last spring freeze near April 20 - plan the planting calendar around it, not the regional average.
  • Energy bills track 5,983 heating and 830 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: Winchester Airport, IN

An annual average temperature of 51°F, ranging from a mean daily high of 60°F to a mean daily low of 41°F is what the NOAA 1991–2020 climate normals report for Winchester Airport, Indiana. July is typically the warmest month of the year, while January is the coldest. That baseline comes from station USC00129678 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.

Anyone planning to live, garden, or travel in Winchester Airport should weigh precipitation alongside temperature: the annual average runs 40.1 inches, predominantly as rainfall. The frost-free season averages 184 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 20 and the first fall freeze near October 21. And on the energy front, 5,983 heating degree days and 830 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Winchester Airport scores 68/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above are the practical planning tool: mild highs and lows land in the shoulder seasons, July-driven heat peaks in summer, and January-driven cold sets in over deep winter. These are thirty-year averages, not a forecast - any single year can run warmer, wetter, drier, or cooler than the normal.

Frequently Asked Questions

What is the average temperature in Winchester Airport, IN?
The average annual temperature in Winchester Airport, Indiana is 51°F. The warmest month averages 83°F (28°C) and the coldest averages 18°F (-8°C).
How much rain does Winchester Airport get?
Winchester Airport receives 40.1 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Winchester Airport?
Winchester Airport has a climate comfort score of 68/100 (Good), milder than 58% of U.S. cities in the PlainClimate database.
When is the growing season in Winchester Airport?
Winchester Airport has approximately 184 frost-free days per year, with the last spring freeze around April 20 and the first fall freeze around October 21.
How much energy does heating and cooling require in Winchester Airport?
Winchester Airport has 5,983 heating degree days and 830 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 Winchester Airport climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00129678 near Winchester Airport.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00129678. 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.