Climate data for Buffalo ( Buffalo Niagara International Airport), 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) | 72 (22) |
71 (22) |
82 (28) |
94 (34) |
94 (34) |
97 (36) |
98 (37) |
99 (37) |
98 (37) |
92 (33) |
80 (27) |
74 (23) |
99 (37) |
Mean maximum °F (°C) | 56.4 (13.6) |
54.5 (12.5) |
66.0 (18.9) |
77.9 (25.5) |
84.3 (29.1) |
88.1 (31.2) |
89.5 (31.9) |
88.5 (31.4) |
86.4 (30.2) |
77.9 (25.5) |
67.4 (19.7) |
56.8 (13.8) |
91.5 (33.1) |
Mean daily maximum °F (°C) | 32.1 (0.1) |
33.3 (0.7) |
41.8 (5.4) |
54.7 (12.6) |
67.4 (19.7) |
75.6 (24.2) |
80.2 (26.8) |
79.0 (26.1) |
72.3 (22.4) |
59.6 (15.3) |
47.8 (8.8) |
37.2 (2.9) |
56.8 (13.8) |
Daily mean °F (°C) | 25.5 (−3.6) |
26.4 (−3.1) |
34.1 (1.2) |
45.6 (7.6) |
57.9 (14.4) |
66.9 (19.4) |
71.7 (22.1) |
70.4 (21.3) |
63.4 (17.4) |
51.7 (10.9) |
41.0 (5.0) |
31.4 (−0.3) |
48.8 (9.3) |
Mean daily minimum °F (°C) | 19.0 (−7.2) |
19.5 (−6.9) |
26.4 (−3.1) |
36.5 (2.5) |
48.3 (9.1) |
58.1 (14.5) |
63.1 (17.3) |
61.7 (16.5) |
54.5 (12.5) |
43.9 (6.6) |
34.2 (1.2) |
25.6 (−3.6) |
40.9 (4.9) |
Mean minimum °F (°C) | 0.8 (−17.3) |
1.7 (−16.8) |
9.3 (−12.6) |
24.6 (−4.1) |
35.6 (2.0) |
45.6 (7.6) |
52.8 (11.6) |
51.0 (10.6) |
41.0 (5.0) |
30.7 (−0.7) |
20.4 (−6.4) |
8.5 (−13.1) |
−2.8 (−19.3) |
Record low °F (°C) | −16 (−27) |
−20 (−29) |
−7 (−22) |
5 (−15) |
25 (−4) |
35 (2) |
43 (6) |
38 (3) |
32 (0) |
20 (−7) |
2 (−17) |
−10 (−23) |
−20 (−29) |
Average precipitation inches (mm) | 3.35 (85) |
2.49 (63) |
2.89 (73) |
3.37 (86) |
3.37 (86) |
3.37 (86) |
3.23 (82) |
3.23 (82) |
4.10 (104) |
4.03 (102) |
3.50 (89) |
3.75 (95) |
40.68 (1,033) |
Average snowfall inches (cm) | 26.7 (68) |
18.1 (46) |
14.1 (36) |
2.5 (6.4) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.9 (2.3) |
7.8 (20) |
25.3 (64) |
95.4 (242) |
Average extreme snow depth inches (cm) | 10.8 (27) |
8.4 (21) |
7.6 (19) |
1.0 (2.5) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.1 (0.25) |
3.7 (9.4) |
9.0 (23) |
15.5 (39) |
Average precipitation days (≥ 0.01 in) | 19.2 | 15.8 | 14.8 | 13.4 | 12.8 | 11.9 | 10.8 | 10.0 | 10.9 | 14.1 | 14.4 | 17.7 | 165.8 |
Average snowy days (≥ 0.1 in) | 16.4 | 13.5 | 9.1 | 3.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 4.7 | 12.2 | 59.5 |
Average relative humidity (%) | 76.0 | 75.9 | 73.3 | 67.8 | 67.2 | 68.6 | 68.1 | 72.1 | 74.0 | 72.9 | 75.8 | 77.6 | 72.4 |
Average dew point °F (°C) | 16.9 (−8.4) |
17.6 (−8.0) |
25.2 (−3.8) |
33.4 (0.8) |
44.2 (6.8) |
54.1 (12.3) |
59.0 (15.0) |
58.8 (14.9) |
52.5 (11.4) |
41.7 (5.4) |
32.7 (0.4) |
22.6 (−5.2) |
38.2 (3.5) |
Mean monthly sunshine hours | 91.3 | 108.0 | 163.7 | 204.7 | 258.3 | 287.1 | 306.7 | 266.4 | 207.6 | 159.4 | 84.4 | 69.0 | 2,206.6 |
Percent possible sunshine | 31 | 37 | 44 | 51 | 57 | 63 | 66 | 62 | 55 | 47 | 29 | 25 | 49 |
Average ultraviolet index | 1 | 2 | 4 | 6 | 7 | 8 | 8 | 8 | 6 | 4 | 2 | 1 | 5 |
Source 1: NOAA (relative humidity and sun 1961–1990) [1] [2] [3] | |||||||||||||
Source 2: Weather Atlas [4] |