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Climate & Weather Averages in Greencastle, Indiana, USA

Currently: 68 °F. Passing clouds. (Weather station: Indianapolis International Airport, USA). See more current weather

Annual Weather Averages in Greencastle

Based on weather reports collected during 1992–2021.

All Year Climate & Weather Averages in Greencastle

High Temp: 85 °F

Low Temp: 21 °F

Mean Temp: 54 °F

Precipitation: 3.69"

Humidity: 70%

Dew Point: 43 °F

Wind: 15 mph

Pressure: 30.05 "Hg

Visibility: 9 mi

January Climate & Weather Averages in Greencastle

High Temp: 36 °F

Low Temp: 21 °F

Mean Temp: 29 °F

Precipitation: 3.14"

Humidity: 77%

Dew Point: 22 °F

Wind: 18 mph

Pressure: 30.13 "Hg

Visibility: 8 mi

February Climate & Weather Averages in Greencastle

High Temp: 41 °F

Low Temp: 24 °F

Mean Temp: 33 °F

Precipitation: 2.49"

Humidity: 72%

Dew Point: 24 °F

Wind: 18 mph

Pressure: 30.11 "Hg

Visibility: 8 mi

March Climate & Weather Averages in Greencastle

High Temp: 52 °F

Low Temp: 33 °F

Mean Temp: 42 °F

Precipitation: 3.60"

Humidity: 66%

Dew Point: 31 °F

Wind: 18 mph

Pressure: 30.08 "Hg

Visibility: 9 mi

April Climate & Weather Averages in Greencastle

High Temp: 64 °F

Low Temp: 43 °F

Mean Temp: 53 °F

Precipitation: 4.34"

Humidity: 63%

Dew Point: 40 °F

Wind: 18 mph

Pressure: 29.98 "Hg

Visibility: 9 mi

May Climate & Weather Averages in Greencastle

High Temp: 74 °F

Low Temp: 54 °F

Mean Temp: 64 °F

Precipitation: 4.73"

Humidity: 67%

Dew Point: 52 °F

Wind: 15 mph

Pressure: 29.99 "Hg

Visibility: 9 mi

June Climate & Weather Averages in Greencastle

High Temp: 82 °F

Low Temp: 63 °F

Mean Temp: 73 °F

Precipitation: 5.19"

Humidity: 68%

Dew Point: 61 °F

Wind: 13 mph

Pressure: 29.96 "Hg

Visibility: 9 mi

July Climate & Weather Averages in Greencastle

High Temp: 85 °F

Low Temp: 67 °F

Mean Temp: 76 °F

Precipitation: 4.59"

Humidity: 70%

Dew Point: 65 °F

Wind: 12 mph

Pressure: 29.99 "Hg

Visibility: 9 mi

August Climate & Weather Averages in Greencastle

High Temp: 85 °F

Low Temp: 65 °F

Mean Temp: 75 °F

Precipitation: 3.15"

Humidity: 69%

Dew Point: 64 °F

Wind: 11 mph

Pressure: 30.01 "Hg

Visibility: 9 mi

September Climate & Weather Averages in Greencastle

High Temp: 78 °F

Low Temp: 58 °F

Mean Temp: 68 °F

Precipitation: 3.30"

Humidity: 67%

Dew Point: 56 °F

Wind: 12 mph

Pressure: 30.04 "Hg

Visibility: 9 mi

October Climate & Weather Averages in Greencastle

High Temp: 66 °F

Low Temp: 46 °F

Mean Temp: 56 °F

Precipitation: 3.31"

Humidity: 68%

Dew Point: 45 °F

Wind: 15 mph

Pressure: 30.07 "Hg

Visibility: 10 mi

November Climate & Weather Averages in Greencastle

High Temp: 52 °F

Low Temp: 35 °F

Mean Temp: 43 °F

Precipitation: 3.39"

Humidity: 71%

Dew Point: 34 °F

Wind: 17 mph

Pressure: 30.12 "Hg

Visibility: 9 mi

December Climate & Weather Averages in Greencastle

High Temp: 41 °F

Low Temp: 26 °F

Mean Temp: 34 °F

Precipitation: 3.03"

Humidity: 77%

Dew Point: 27 °F

Wind: 17 mph

Pressure: 30.12 "Hg

Visibility: 8 mi

Quick Climate Info

Hottest MonthJuly (76 °F avg)
Coldest MonthJanuary (29 °F avg)
Wettest MonthJune (5.19" avg)
Windiest MonthApril (18 mph avg)
Annual precip.44.25" (per year)

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