Weather history for Rock Falls, Illinois, United States

Dec 21

This Day in History

Weather in Rock Falls on December 21

2014

Weather in Rock Falls on 21 in 2014. Overcast
  • 43° F
  • Wind: S 16 mph
  • Humidity: 74%

2013

Weather in Rock Falls on 21 in 2012. Ice pellets
  • 30° F
  • Wind: NE 13 mph
  • Humidity: 95%

2012

Weather in Rock Falls on 21 in 2012. Clear/Sunny
  • 27° F
  • Wind: WNW 32 mph
  • Humidity: 88%

2011

Weather in Rock Falls on 21 in 2012. Overcast
  • 46° F
  • Wind: WSW 5 mph
  • Humidity: 92%
Weather in Rock Falls today

Rock Falls average weather by month
Month Temperature °F Average Rainfall (mm) Average snow days Average Fog days
Average Absolute Daily Monthly
max min max min
January
36.7
18.5
70.0
-20.9
1.7
52.1
11
16
February
40.5
21.0
71.1
-18.9
1.7
47.1
8
14
March
52.5
30.0
82.0
-4.0
2
62.5
5
12
April
65.3
40.5
91.0
19.4
3
90.4
1
10
May
74.5
50.2
93.9
28.0
3.4
106.4
0
13
June
83.3
60.3
98.1
39.0
2.7
80.1
0
12
July
86.5
64.6
104.0
51.1
3.2
98.7
0
12
August
85.1
63.3
98.6
46.9
2.8
87.7
0
16
September
78.6
54.1
97.0
28.9
2.7
81.7
0
12
October
67.5
43.0
93.0
23.0
2.3
70
0
10
November
52.5
32.0
80.1
5.0
2.4
71.6
5
12
December
39.0
21.0
68.0
-23.1
1.6
50.7
10
16

year temperature in average


 Weather history in other popular US cities: New York, Los Angeles, Chicago, Houston, Philadelphia, Phoenix, San Diego.