Template:Cincinnati weatherbox
| Climate data for Cincinnati (Cincinnati/Northern Kentucky Int'l), 1991–2020 normals,[a] extremes 1871–present[b] | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °F (°C) | 77 (25) |
79 (26) |
88 (31) |
90 (32) |
95 (35) |
102 (39) |
108 (42) |
103 (39) |
102 (39) |
95 (35) |
82 (28) |
75 (24) |
108 (42) |
| Mean maximum °F (°C) | 61.8 (16.6) |
66.1 (18.9) |
74.3 (23.5) |
81.1 (27.3) |
86.7 (30.4) |
91.6 (33.1) |
93.6 (34.2) |
93.2 (34.0) |
90.7 (32.6) |
82.9 (28.3) |
72.0 (22.2) |
63.8 (17.7) |
95.3 (35.2) |
| Mean daily maximum °F (°C) | 39.6 (4.2) |
43.7 (6.5) |
53.5 (11.9) |
65.5 (18.6) |
74.5 (23.6) |
82.6 (28.1) |
86.0 (30.0) |
85.2 (29.6) |
78.9 (26.1) |
66.7 (19.3) |
53.8 (12.1) |
43.3 (6.3) |
64.4 (18.0) |
| Daily mean °F (°C) | 31.4 (−0.3) |
34.7 (1.5) |
43.6 (6.4) |
54.6 (12.6) |
64.1 (17.8) |
72.3 (22.4) |
75.9 (24.4) |
74.9 (23.8) |
68.1 (20.1) |
56.2 (13.4) |
44.4 (6.9) |
35.6 (2.0) |
54.7 (12.6) |
| Mean daily minimum °F (°C) | 23.1 (−4.9) |
25.8 (−3.4) |
33.8 (1.0) |
43.7 (6.5) |
53.7 (12.1) |
62.1 (16.7) |
65.9 (18.8) |
64.6 (18.1) |
57.3 (14.1) |
45.7 (7.6) |
35.1 (1.7) |
27.9 (−2.3) |
44.9 (7.2) |
| Mean minimum °F (°C) | 0.1 (−17.7) |
6.5 (−14.2) |
14.8 (−9.6) |
26.7 (−2.9) |
36.6 (2.6) |
49.2 (9.6) |
55.9 (13.3) |
54.6 (12.6) |
42.5 (5.8) |
29.8 (−1.2) |
19.0 (−7.2) |
9.1 (−12.7) |
−2.7 (−19.3) |
| Record low °F (°C) | −25 (−32) |
−17 (−27) |
−11 (−24) |
15 (−9) |
27 (−3) |
39 (4) |
47 (8) |
43 (6) |
31 (−1) |
16 (−9) |
0 (−18) |
−20 (−29) |
−25 (−32) |
| Average precipitation inches (mm) | 3.30 (84) |
3.17 (81) |
4.16 (106) |
4.53 (115) |
4.67 (119) |
4.75 (121) |
3.83 (97) |
3.43 (87) |
3.11 (79) |
3.35 (85) |
3.23 (82) |
3.73 (95) |
45.26 (1,150) |
| Average snowfall inches (cm) | 7.7 (20) |
6.7 (17) |
3.4 (8.6) |
0.4 (1.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.2 (0.51) |
0.8 (2.0) |
4.1 (10) |
23.3 (59) |
| Average precipitation days (≥ 0.01 in) | 13.2 | 12.0 | 12.5 | 13.1 | 13.5 | 11.8 | 11.0 | 8.9 | 8.3 | 8.7 | 10.3 | 12.4 | 135.7 |
| Average snowy days (≥ 0.1 in) | 6.7 | 5.9 | 2.7 | 0.6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 1.1 | 4.6 | 21.7 |
| Average relative humidity (%) | 72.2 | 70.1 | 67.0 | 62.8 | 66.9 | 69.2 | 71.5 | 72.3 | 72.7 | 69.2 | 71.0 | 73.8 | 69.9 |
| Average dew point °F (°C) | 19.9 (−6.7) |
22.5 (−5.3) |
31.3 (−0.4) |
39.6 (4.2) |
50.5 (10.3) |
59.7 (15.4) |
64.2 (17.9) |
63.0 (17.2) |
56.7 (13.7) |
43.7 (6.5) |
34.7 (1.5) |
25.5 (−3.6) |
42.6 (5.9) |
| Mean monthly sunshine hours | 120.8 | 128.4 | 170.1 | 211.0 | 249.9 | 275.5 | 277.0 | 261.5 | 234.4 | 188.8 | 118.7 | 99.3 | 2,335.4 |
| Percent possible sunshine | 40 | 43 | 46 | 53 | 56 | 62 | 61 | 62 | 63 | 55 | 39 | 34 | 52 |
| Average ultraviolet index | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 7 | 4 | 2 | 2 | 5 |
| Source 1: NOAA (relative humidity and sun 1961–1990)[1][2][3][4] | |||||||||||||
| Source 2: Weather Atlas (UV)[5] | |||||||||||||
- ^ Mean monthly maxima and minima (i.e. the expected highest and lowest temperature readings at any point during the year or given month) calculated based on data at said location from 1991 to 2020.
- ^ Official records for Cincinnati kept at downtown from January 1871 to March 1915, at the Cincinnati Abbe Observatory just north of downtown from April 1915 to March 1947, and at KCVG near Hebron, Kentucky since April 1947. For more information, see Threadex and History of Weather Observations Cincinnati, Ohio 1789–1947.
- ^ "NowData—NOAA Online Weather Data". National Oceanic and Atmospheric Administration. Retrieved May 9, 2021.
- ^ "Station: Cincinnati Northern KY AP, KY". U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991–2020). National Oceanic and Atmospheric Administration. Archived from the original on 2024-02-06. Retrieved May 9, 2021.
- ^ "Records for Cincinnati". National Weather Service. Retrieved April 13, 2012.
- ^ "WMO Climate Normals for CINCINNATI/GREATER CINCINNATI,KY 1961–1990". National Oceanic and Atmospheric Administration. Archived from the original on 2024-02-06. Retrieved July 25, 2020.
- ^ "Cincinnati, Ohio, USA - Monthly weather forecast and Climate data". Weather Atlas. Retrieved July 4, 2019.