Thermograph

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

Weather in Indianapolis in December

In an average December, Indianapolis sees a daily high around 40°F and a low around 27°F, based on 1980–2026 of local climate records.

Average high40°F
Typical high range27°F to 54°F
Average low27°F
Typical low range12°F to 41°F
Average daily precipitation0.10 in

December records

The most extreme December on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total December accumulation.

High

Highest 70°F 1998-12-06
Lowest -2°F 1989-12-22

Low

Highest 62°F 1982-12-03
Lowest -19°F 1989-12-22

Feels-like

Highest 70°F 1998-12-06
Lowest -41°F 1983-12-24

Humidity

Highest 13.8 g/m³ 1998-12-06
Lowest 0.5 g/m³ 1983-12-24

Wind

Highest 30 mph 1987-12-15
Lowest 3 mph 2014-12-20

Gust

Highest 63 mph 1996-12-24
Lowest 7 mph 1986-12-26

Precip

Wettest 8.01 in 1982
Driest 1.33 in 1989

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