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

Lafayette Purdue Univ, IN Climate

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

51°F
Avg annual temp
64/100
Comfort score
37.0"
Annual precip
175d
Growing season

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

The climate verdict for Lafayette Purdue Univ

Lafayette Purdue Univ, Indiana 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
37.0"
yearly precipitation total
175 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 (11°C)

Avg High

61°F

Avg Low

42°F

Annual Precip

37.0"

Comfort Score

64/100

Good

Climate Comfort Score

64/100

Good

Avg Annual Temperature

51°F

30-year mean (NOAA NCEI)

Annual Precipitation

37.0"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Lafayette Purdue Univ) 64.0%
National median (63)

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

How Lafayette Purdue Univ compares to every U.S. city

Lafayette Purdue Univ'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 Lafayette Purdue Univ

Methodology

The chart below traces how the U.S. land temperature anomaly has moved against the global mean since 1900. For Lafayette Purdue Univ, the NOAA 1991-2020 normal captures average conditions across that spread - notably, the most recent decade runs warmer than the 30-year mean itself.

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 (-3°C)
February 38°F (3°C) 21°F (-6°C) 30°F (-1°C)
March 50°F (10°C) 30°F (-1°C) 40°F (4°C)
April 62°F (17°C) 40°F (5°C) 51°F (11°C)
May 73°F (23°C) 51°F (10°C) 62°F (16°C)
June 81°F (27°C) 60°F (16°C) 71°F (22°C)
July 84°F (29°C) 63°F (17°C) 74°F (23°C)
August 83°F (28°C) 62°F (17°C) 72°F (22°C)
September 77°F (25°C) 54°F (12°C) 66°F (19°C)
October 65°F (18°C) 43°F (6°C) 54°F (12°C)
November 50°F (10°C) 33°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 2.2"

9.3 days with precipitation

February 1.8"

8.1 days with precipitation

March 2.7"

10.6 days with precipitation

April 3.8"

11.6 days with precipitation

May 4.0"

12.6 days with precipitation

June 4.6"

12.6 days with precipitation

July 4.1"

11.8 days with precipitation

August 3.1"

10.4 days with precipitation

September 2.6"

9.4 days with precipitation

October 2.9"

9.5 days with precipitation

November 2.9"

10.1 days with precipitation

December 2.3"

10.3 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

October 18

50% probability date

Last Spring Freeze

April 26

50% probability date

Growing Season

175 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

5,824

Higher = more heating needed

Cooling Degree Days

883

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

Humidity & Wind

Monthly averages from hourly observations

Month Humidity Wind (mph)
January 74% 9.0
February 71% 9.5
March 64% 9.6
April 64% 8.9
May 67% 7.1
June 72% 6.0
July 74% 5.3
August 73% 5.7
September 70% 6.7
October 70% 8.2
November 74% 8.7
December 78% 8.7

What Lafayette Purdue Univ's climate means for you

Lafayette Purdue Univ runs 51°F a year - peaking in July, coldest in January.

  • Gardeners get about 175 frost-free days, with the last spring freeze near April 26 - plan the planting calendar around it, not the regional average.
  • Energy bills track 5,824 heating and 883 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: Lafayette Purdue Univ, IN

An annual average temperature of 51°F, ranging from a mean daily high of 61°F to a mean daily low of 42°F is what the NOAA 1991–2020 climate normals report for Lafayette Purdue Univ, Indiana. July is typically the warmest month of the year, while January is the coldest. That baseline comes from station USW00014835 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.

Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Lafayette Purdue Univ sees about 37.0 inches of precipitation a year, predominantly as rainfall. The frost-free season averages 175 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 18. On the energy side, 5,824 heating degree days and 883 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Lafayette Purdue Univ scores 64/100 (Good), 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 Lafayette Purdue Univ, IN?
The average annual temperature in Lafayette Purdue Univ, Indiana is 51°F. The warmest month averages 84°F (29°C) and the coldest averages 18°F (-8°C).
How much rain does Lafayette Purdue Univ get?
Lafayette Purdue Univ receives 37.0 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Lafayette Purdue Univ?
Lafayette Purdue Univ 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 Lafayette Purdue Univ?
Lafayette Purdue Univ has approximately 175 frost-free days per year, with the last spring freeze around April 26 and the first fall freeze around October 18.
How much energy does heating and cooling require in Lafayette Purdue Univ?
Lafayette Purdue Univ has 5,824 heating degree days and 883 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 Lafayette Purdue Univ climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USW00014835 near Lafayette Purdue Univ.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00014835. 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.