| Climate data for Evansville Regional Airport, Indiana (1991–2020 normals, extremes 1897−present) [a] | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °F (°C) | 76 (24) |
79 (26) |
87 (31) |
91 (33) |
98 (37) |
107 (42) |
111 (44) |
105 (41) |
104 (40) |
96 (36) |
86 (30) |
77 (25) |
111 (44) |
| Mean maximum °F (°C) | 63.4 (17.4) |
69.2 (20.7) |
76.5 (24.7) |
83.1 (28.4) |
89.3 (31.8) |
94.4 (34.7) |
96.0 (35.6) |
95.6 (35.3) |
93.0 (33.9) |
85.8 (29.9) |
74.4 (23.6) |
65.6 (18.7) |
97.6 (36.4) |
| Mean daily maximum °F (°C) | 41.7 (5.4) |
46.7 (8.2) |
56.8 (13.8) |
68.4 (20.2) |
77.3 (25.2) |
85.7 (29.8) |
88.6 (31.4) |
87.9 (31.1) |
81.9 (27.7) |
70.1 (21.2) |
56.2 (13.4) |
45.6 (7.6) |
67.2 (19.6) |
| Daily mean °F (°C) | 33.6 (0.9) |
37.6 (3.1) |
46.6 (8.1) |
57.2 (14.0) |
66.9 (19.4) |
75.5 (24.2) |
78.7 (25.9) |
77.3 (25.2) |
70.3 (21.3) |
58.6 (14.8) |
46.3 (7.9) |
37.5 (3.1) |
57.2 (14.0) |
| Mean daily minimum °F (°C) | 25.5 (−3.6) |
28.4 (−2.0) |
36.4 (2.4) |
46.1 (7.8) |
56.6 (13.7) |
65.3 (18.5) |
68.8 (20.4) |
66.7 (19.3) |
58.6 (14.8) |
47.1 (8.4) |
36.5 (2.5) |
29.5 (−1.4) |
47.1 (8.4) |
| Mean minimum °F (°C) | 5.0 (−15.0) |
10.4 (−12.0) |
18.6 (−7.4) |
29.9 (−1.2) |
40.9 (4.9) |
51.7 (10.9) |
58.8 (14.9) |
56.6 (13.7) |
43.8 (6.6) |
30.9 (−0.6) |
21.2 (−6.0) |
10.9 (−11.7) |
1.7 (−16.8) |
| Record low °F (°C) | −21 (−29) |
−23 (−31) |
−9 (−23) |
23 (−5) |
28 (−2) |
41 (5) |
47 (8) |
43 (6) |
31 (−1) |
21 (−6) |
−3 (−19) |
−15 (−26) |
−23 (−31) |
| Average precipitation inches (mm) | 3.35 (85) |
3.22 (82) |
4.60 (117) |
5.14 (131) |
5.12 (130) |
4.44 (113) |
4.38 (111) |
3.07 (78) |
3.31 (84) |
3.39 (86) |
4.11 (104) |
3.78 (96) |
47.91 (1,217) |
| Average snowfall inches (cm) | 3.4 (8.6) |
3.1 (7.9) |
1.1 (2.8) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.2 (0.51) |
0.2 (0.51) |
2.8 (7.1) |
10.8 (27) |
| Average precipitation days (≥ 0.01 in) | 10.4 | 9.7 | 11.2 | 11.7 | 12.6 | 10.1 | 9.6 | 6.9 | 7.5 | 8.3 | 9.6 | 10.4 | 118.0 |
| Average snowy days (≥ 0.1 in) | 2.8 | 2.4 | 0.8 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.4 | 1.7 | 8.3 |
| Average relative humidity (%) | 71.6 | 71.0 | 68.4 | 64.7 | 67.7 | 67.5 | 70.9 | 72.8 | 73.4 | 69.4 | 71.2 | 74.2 | 70.2 |
| Mean monthly sunshine hours | 143.9 | 149.1 | 201.9 | 232.5 | 283.2 | 317.8 | 321.5 | 304.5 | 250.4 | 223.1 | 145.2 | 128.3 | 2,701.4 |
| Percent possible sunshine | 47 | 49 | 54 | 59 | 64 | 72 | 71 | 72 | 67 | 64 | 48 | 43 | 61 |
| Source: NOAA (relative humidity and sun 1961−1990) [1] [2] [3] | |||||||||||||
- ^ a b "NowData – NOAA Online Weather Data". National Oceanic and Atmospheric Administration. Retrieved May 29, 2021.
- ^ "Station: Evansville Regional AP, IN". U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991–2020). National Oceanic and Atmospheric Administration. Retrieved May 29, 2021.
- ^ "WMO Climate Normals for EVANSVILLE/REGIONAL, IN 1961–1990". National Oceanic and Atmospheric Administration. Retrieved March 11, 2014.