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Rockton, IL Weather


Rockton, IL climate is warm during summer when temperatures tend to be in the 70's and very cold during winter when temperatures tend to be in the 20's.

The warmest month of the year is July with an average maximum temperature of 82.50 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 11.60 degrees Fahrenheit.

Temperature variations between night and day tend to be moderate during summer with a difference that can reach 20 degrees Fahrenheit, and fairly limited during winter with an average difference of 15 degrees Fahrenheit.

The annual average precipitation at Rockton is 35.25 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is June with an average rainfall of 4.64 Inches.

Weather Data

Normal Climate

Normal Temperatures

(BELOIT Weather station, 3.92 miles from Rockton)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max °F 26.5 31.7 43.7 57.5 69.5 79.2 82.5 80.1 72.9 61.5 44.9 31.7 56.8
Mean °F 19.1 24.3 35.4 47.6 58.8 68.6 72.4 70.1 62.3 51.1 37.1 24.8 47.6
Min °F 11.6 16.9 27.1 37.7 48.0 58.0 62.3 60.1 51.6 40.7 29.3 17.8 38.4

Normal Precipitation

(BELOIT Weather station, 3.92 miles from Rockton)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Inch 1.32 1.27 2.21 3.75 3.36 4.64 3.83 4.28 3.62 2.39 2.74 1.84 35.25