Thermograph

How unusual is the weather? Graded against ~45 years of local climate history.

Indianapolis weather records

Record high and low temperatures for Indianapolis, by month, by season, and all-time, with the dates they occurred, across 1980–2026 of daily climate history. Its hottest day on record reached 102°F on 1988-06-25; its coldest fell to -24°F on 1994-01-19.

Records by month

The warmest (▲) and coldest (▼) both the daytime high and the overnight low have ever been in each calendar month, so each column shows its record high and its record low. Tap a month for its full averages and typical range.

MonthDaytime highOvernight low
January
65°F2008-01-07
-3°F1985-01-20
59°F2008-01-07
-24°F1994-01-19
February
74°F2018-02-20
6°F1996-02-04
63°F2018-02-20
-12°F1981-02-12
March
83°F2012-03-21
16°F1980-03-02
65°F1991-03-27
-8°F1984-03-09
April
86°F1986-04-26
32°F2007-04-07
69°F2002-04-17
20°F1997-04-09
May
93°F2012-05-27
47°F2023-05-01
75°F2012-05-25
29°F2020-05-09
June
102°F1988-06-25
60°F2012-06-01
80°F2022-06-16
40°F1992-06-22
July
101°F1988-07-15
67°F2009-07-18
82°F1983-07-23
50°F1983-07-06
August
99°F1983-08-19
65°F2004-08-12
80°F2023-08-25
43°F1986-08-29
September
98°F2011-09-01
54°F2001-09-25
76°F2010-09-24
31°F1995-09-23
October
90°F2019-10-01
37°F1989-10-20
71°F2019-10-02
23°F1981-10-24
November
79°F2020-11-08
19°F2014-11-18
65°F2020-11-10
2°F2019-11-13
December
70°F1998-12-06
-2°F1989-12-22
62°F1982-12-03
-19°F1989-12-22

Records by season

The warmest (▲) and coldest (▼) both the daytime high and the overnight low have reached in each meteorological season (Northern Hemisphere, each a three-month span).

SeasonDaytime highOvernight low
Winter (Dec–Feb)
74°F2018-02-20
-3°F1985-01-20
63°F2018-02-20
-24°F1994-01-19
Spring (Mar–May)
93°F2012-05-27
16°F1980-03-02
75°F2012-05-25
-8°F1984-03-09
Summer (Jun–Aug)
102°F1988-06-25
60°F2012-06-01
82°F1983-07-23
40°F1992-06-22
Autumn (Sep–Nov)
98°F2011-09-01
19°F2014-11-18
76°F2010-09-24
2°F2019-11-13

All-time records

The most extreme value Indianapolis has recorded for each metric across its entire history.

High

Highest 102°F 1988-06-25
Lowest -3°F 1985-01-20

Low

Highest 82°F 1983-07-23
Lowest -24°F 1994-01-19

Feels-like

Highest 138°F 1983-08-19
Lowest -48°F 1985-01-20

Humidity

Highest 23.3 g/m³ 1980-07-08
Lowest 0.4 g/m³ 1985-01-20

Wind

Highest 30 mph 1987-12-15
Lowest 3 mph 2019-06-18

Gust

Highest 69 mph 2022-03-31
Lowest 7 mph 2026-07-16

Precip

Wettest 4.93 in 2003-09-01
Driest 11-day dry spell 2011-10-01

For rainfall, the “driest” figure is the longest run of consecutive days without measurable rain, dated to when that dry spell began.

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