Olney September Weather
Averages and records for weather in
Olney, Illinois in the month of September.
Typical Olney September Weather
1991–2020
|
| Average daily high |
81.0 °F |
| Average daily low |
56.5 °F |
| Average monthly precipitation |
3.3 inches |
| Average monthly snow |
none |
| Daily chance of precipitation |
25.6% |
| Daily chance of snow |
0% |
Note: Daily averages are a moving average which includes 14 days before and after
| Day |
Average (°F) |
Record (°F) |
| High |
Low |
High |
Low |
| September 1 |
84.9 |
61.7 |
105 |
41 |
| September 2 |
84.6 |
61.4 |
106 |
44 |
| September 3 |
84.4 |
61.1 |
105 |
45 |
| September 4 |
84.2 |
60.8 |
103 |
44 |
| September 5 |
84.1 |
60.6 |
106 |
44 |
| September 6 |
83.9 |
60.3 |
104 |
40 |
| September 7 |
83.6 |
60.1 |
103 |
39 |
| September 8 |
83.4 |
59.7 |
105 |
37 |
| September 9 |
83.1 |
59.4 |
104 |
42 |
| September 10 |
82.8 |
59.0 |
102 |
40 |
| September 11 |
82.4 |
58.5 |
98 |
36 |
| September 12 |
82.1 |
58.1 |
99 |
37 |
| September 13 |
81.7 |
57.7 |
102 |
37 |
| September 14 |
81.5 |
57.3 |
103 |
35 |
| September 15 |
81.2 |
56.8 |
104 |
41 |
| September 16 |
80.8 |
56.3 |
100 |
33 |
| September 17 |
80.5 |
55.8 |
99 |
37 |
| September 18 |
80.3 |
55.4 |
99 |
37 |
| September 19 |
79.9 |
55.1 |
98 |
33 |
| September 20 |
79.6 |
54.8 |
100 |
34 |
| September 21 |
79.2 |
54.4 |
100 |
34 |
| September 22 |
78.9 |
53.9 |
97 |
33 |
| September 23 |
78.5 |
53.5 |
94 |
32 |
| September 24 |
78.2 |
53.1 |
94 |
29 |
| September 25 |
77.9 |
52.7 |
92 |
34 |
| September 26 |
77.5 |
52.4 |
94 |
27 |
| September 27 |
77.2 |
52.0 |
92 |
33 |
| September 28 |
76.8 |
51.7 |
97 |
28 |
| September 29 |
76.4 |
51.3 |
101 |
32 |
| September 30 |
76.0 |
50.9 |
93 |
27 |
Weather Station Details
| Years |
Station |
Coordinates |
| 1893–2024 |
Olney 2S |
location |