|
| |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °F (°C) | 88 (31) |
95 (35) |
97 (36) |
100 (38) |
103 (39) |
112 (44) |
112 (44) |
111 (44) |
110 (43) |
100 (38) |
92 (33) |
89 (32) |
112 (44) |
| Mean maximum °F (°C) | 76.7 (24.8) |
80.5 (26.9) |
85.9 (29.9) |
89.0 (31.7) |
95.0 (35.0) |
98.9 (37.2) |
103.6 (39.8) |
104.1 (40.1) |
99.1 (37.3) |
92.5 (33.6) |
82.9 (28.3) |
77.9 (25.5) |
105.5 (40.8) |
| Mean daily maximum °F (°C) | 57.7 (14.3) |
62.0 (16.7) |
69.9 (21.1) |
77.4 (25.2) |
84.9 (29.4) |
92.7 (33.7) |
96.9 (36.1) |
97.1 (36.2) |
90.0 (32.2) |
79.5 (26.4) |
67.8 (19.9) |
59.2 (15.1) |
77.9 (25.5) |
| Mean daily minimum °F (°C) | 37.9 (3.3) |
41.9 (5.5) |
49.4 (9.7) |
56.8 (13.8) |
66.0 (18.9) |
73.8 (23.2) |
77.7 (25.4) |
77.4 (25.2) |
70.1 (21.2) |
58.7 (14.8) |
47.8 (8.8) |
39.8 (4.3) |
58.1 (14.5) |
| Mean minimum °F (°C) | 22.5 (−5.3) |
26.5 (−3.1) |
31.1 (−0.5) |
41.3 (5.2) |
52.0 (11.1) |
64.2 (17.9) |
70.8 (21.6) |
69.4 (20.8) |
56.8 (13.8) |
42.0 (5.6) |
31.2 (−0.4) |
25.1 (−3.8) |
19.1 (−7.2) |
| Record low °F (°C) | −3 (−19) |
2 (−17) |
11 (−12) |
30 (−1) |
39 (4) |
53 (12) |
56 (13) |
57 (14) |
36 (2) |
26 (−3) |
17 (−8) |
1 (−17) |
−3 (−19) |
| Average precipitation inches (mm) | 2.59 (66) |
2.78 (71) |
3.45 (88) |
3.15 (80) |
4.57 (116) |
3.83 (97) |
1.71 (43) |
2.19 (56) |
3.10 (79) |
4.79 (122) |
2.93 (74) |
3.23 (82) |
38.32 (973) |
| Average snowfall inches (cm) | 0.1 (0.25) |
0.9 (2.3) |
0.3 (0.76) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0.1 (0.25) |
0.3 (0.76) |
1.7 (4.3) |
| Average precipitation days (≥ 0.01 in) | 7.0 | 6.9 | 8.1 | 7.3 | 9.4 | 7.3 | 4.9 | 5.1 | 5.6 | 7.2 | 6.5 | 6.9 | 82.2 |
| Average snowy days (≥ 0.1 in) | 0.4 | 0.5 | 0.2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.1 | 0.3 | 1.5 |
| Average relative humidity (%) | 67.5 | 66.4 | 63.7 | 65.3 | 69.7 | 65.8 | 59.8 | 59.5 | 66.5 | 65.7 | 67.4 | 67.5 | 65.4 |
| Average dew point °F (°C) | 31.3 (−0.4) |
35.2 (1.8) |
42.6 (5.9) |
52.0 (11.1) |
61.0 (16.1) |
66.6 (19.2) |
67.6 (19.8) |
66.7 (19.3) |
63.3 (17.4) |
53.2 (11.8) |
43.7 (6.5) |
34.7 (1.5) |
51.5 (10.8) |
| Mean monthly sunshine hours | 183.5 | 178.3 | 227.7 | 236.0 | 258.4 | 297.8 | 332.4 | 304.5 | 246.2 | 228.1 | 183.8 | 173.0 | 2,849.7 |
| Percent possible sunshine | 58 | 58 | 61 | 61 | 60 | 69 | 76 | 74 | 66 | 65 | 59 | 56 | 64 |
| Average ultraviolet index | 3 | 5 | 7 | 9 | 10 | 10 | 10 | 10 | 8 | 6 | 4 | 3 | 7 |
| Source 1: NOAA (sun, relative humidity, and dew point 1961–1990 at DFW Airport)[c][2][3][4][5] | |||||||||||||
| Source 2: Weather Atlas[6] (Average UV index) | |||||||||||||
