New Castle, Indiana Climate

United States

Pop. 17,621 Elev. 325 m / 1,066 ft TZ: America/Indiana/Indianapolis (UTC-4) ·

Summers in New Castle are mild, with July highs around 84°F (29°C), while winters are frigid with January lows of 16°F (-9°C). Humidity pushes the summer feels-like temperature to 94°F (34°C), while wind chill can drive winter lows to 6°F (-14°C). Expect around 63 rainy days annually (39.8 in / 1011 mm total), with snow on 4 days and 28 in (723 mm) of annual accumulation. The city averages 112 sunny days per year and around 41 thunderstorm days.

Temperature 84°F (29°C) high 16°F (-9°C) low
Feels like 94°F (34°C) high 6°F (-14°C) low
Rain 63 days 39.8 in (1011 mm) /yr
Snow 4 days 28.5 in (723 mm) /yr
Sky 112 sunny 41 stormy
Wind 3.1 mph (1.4 m/s) avg

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Monthly Climate Chart

↓ Monthly data table
Best months to visit: May, Aug, Sep, Oct

Sky & Air by Month

Cloud cover (%)
58
Jan
72
Feb
58
Mar
67
Apr
67
May
58
Jun
61
Jul
46
Aug
35
Sep
47
Oct
56
Nov
75
Dec
Humidity (%)
72
Jan
70
Feb
58
Mar
62
Apr
68
May
71
Jun
76
Jul
73
Aug
62
Sep
66
Oct
70
Nov
76
Dec

Weather Days by Month

↓ Weather days table

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Nearby Cities

Nearby

Commercial airport 51 mi Indianapolis International Airport (IND)
Ski resort 60 mi Perfect North Slopes
National park 34 mi Fort Harrison State Park
Mountain peak (4,938 ft) 315 mi Gregory Bald
Hospital 1 mi Henry County Memorial Hospital
Hiking trail 16 mi ADT - Indiana (North) - G - Seg 1

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Monthly Weather Data

↑ See chart
Month Avg High Avg Low Rainfall Snowfall Sunny Days
January 29°F -1°C 16°F -9°C 0.6 in 15 mm 10.4 in265 mm 10
February 39°F 4°C 24°F -4°C 2.7 in 68 mm 5.5 in139 mm 4
March 58°F 15°C 38°F 3°C 4.2 in 106 mm 1.1 in29 mm 10
April 64°F 18°C 45°F 7°C 6.0 in 152 mm 4
May 70°F 21°C 54°F 12°C 3.9 in 99 mm 4
June 82°F 28°C 66°F 19°C 7.5 in 192 mm 8
July 84°F 29°C 70°F 21°C 4.6 in 116 mm 9
August 79°F 26°C 62°F 17°C 2.1 in 54 mm 15
September 79°F 26°C 57°F 14°C 1.9 in 49 mm 20
October 66°F 19°C 47°F 8°C 3.0 in 76 mm 15
November 51°F 10°C 35°F 2°C 1.7 in 43 mm 4.2 in108 mm 11
December 40°F 4°C 24°F -4°C 1.6 in 41 mm 7.2 in182 mm 2

Weather Days by Month

↑ See chart
Month Sunny Days Storm Days
January 10 0
February 4 0
March 10 4
April 4 6
May 4 5
June 8 12
July 9 6
August 15 2
September 20 2
October 15 2
November 11 2
December 2 0