Plano, Illinois Climate

United States

Pop. 11,282 Elev. 199 m / 653 ft TZ: America/Chicago (UTC-5) ·

Plano is largely arid, with warm summers peaking at 86°F (30°C) in July and cold winters around 15°F (-9°C) in January. Humidity pushes the summer feels-like temperature to 95°F (35°C), while wind chill can drive winter lows to 6°F (-14°C). Precipitation occurs on roughly 47 days per year (30.8 in / 783 mm total), with snow on 4 days and 33 in (848 mm) of annual accumulation. The city averages 119 sunny days per year and around 36 thunderstorm days. Nearby lake water reaches 78°F (25°C) in summer.

Temperature 86°F (30°C) high 15°F (-9°C) low
Feels like 95°F (35°C) high 6°F (-14°C) low
Rain 47 days 30.8 in (783 mm) /yr
Snow 4 days 33.4 in (848 mm) /yr
Sky 119 sunny 36 stormy
Wind 2.6 mph (1.2 m/s) avg

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Monthly Climate Chart

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

Sky & Air by Month

Cloud cover (%)
55
Jan
64
Feb
55
Mar
67
Apr
60
May
53
Jun
63
Jul
53
Aug
35
Sep
46
Oct
57
Nov
75
Dec
Humidity (%)
60
Jan
66
Feb
58
Mar
60
Apr
63
May
64
Jun
73
Jul
73
Aug
66
Sep
65
Oct
66
Nov
77
Dec

Weather Days by Month

↓ Weather days table

Water Temperatures

↓ Water temperatures table

Cities with Similar Climate

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Nearby Cities

Nearby

Commercial airport 39 mi Chicago O'Hare International Airport (ORD)
Ski resort 21 mi
National park 48 mi Historic Pullman Foundation Exhibit Hall
Hospital 4 mi Rush Copley Emergency
Hiking trail 19 mi East Loop Trail

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Monthly Weather Data

↑ See chart
Month Avg High Avg Low Rainfall Snowfall Sunny Days
January 31°F -1°C 15°F -9°C 1.0 in 25 mm 4.1 in103 mm 14
February 35°F 2°C 19°F -7°C 0.1 in 2 mm 7.2 in182 mm 8
March 57°F 14°C 35°F 2°C 3.4 in 86 mm 4.3 in110 mm 11
April 62°F 17°C 43°F 6°C 3.0 in 77 mm 0.1 in1 mm 5
May 70°F 21°C 50°F 10°C 3.7 in 93 mm 8
June 84°F 29°C 64°F 18°C 4.4 in 111 mm 10
July 86°F 30°C 69°F 21°C 4.7 in 119 mm 6
August 80°F 27°C 63°F 17°C 3.2 in 82 mm 13
September 79°F 26°C 56°F 13°C 2.1 in 53 mm 18
October 67°F 19°C 49°F 9°C 2.3 in 57 mm 13
November 50°F 10°C 35°F 2°C 1.1 in 28 mm 10.1 in255 mm 9
December 34°F 1°C 19°F -7°C 1.9 in 49 mm 7.7 in196 mm 4

Weather Days by Month

↑ See chart
Month Sunny Days Storm Days
January 14 1
February 8 0
March 11 3
April 5 2
May 8 3
June 10 5
July 6 9
August 13 6
September 18 5
October 13 1
November 9 0
December 4 1

Water Temperatures Data

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Month Lake Avg High
January 32°F 0°C
February 32°F 0°C
March 40°F 4°C
April 49°F 10°C
May 57°F 14°C
June 70°F 21°C
July 78°F 25°C
August 74°F 23°C
September 68°F 20°C
October 59°F 15°C
November 44°F 6°C
December 33°F 1°C