| Climate data for Houston (Intercontinental Airport), 1991–2020 normals,[a] extremes 1888–present[b] | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °F (°C) | 85 (29) |
91 (33) |
96 (36) |
95 (35) |
99 (37) |
107 (42) |
105 (41) |
109 (43) |
109 (43) |
99 (37) |
89 (32) |
85 (29) |
109 (43) |
| Mean maximum °F (°C) | 78.9 (26.1) |
81.2 (27.3) |
85.4 (29.7) |
88.6 (31.4) |
93.8 (34.3) |
97.8 (36.6) |
99.1 (37.3) |
101.2 (38.4) |
97.3 (36.3) |
92.2 (33.4) |
84.9 (29.4) |
80.7 (27.1) |
102.1 (38.9) |
| Mean daily maximum °F (°C) | 63.8 (17.7) |
67.8 (19.9) |
74.0 (23.3) |
80.1 (26.7) |
86.9 (30.5) |
92.3 (33.5) |
94.5 (34.7) |
94.9 (34.9) |
90.4 (32.4) |
82.8 (28.2) |
72.6 (22.6) |
65.3 (18.5) |
80.5 (26.9) |
| Daily mean °F (°C) | 53.8 (12.1) |
57.7 (14.3) |
63.8 (17.7) |
70.0 (21.1) |
77.4 (25.2) |
83.0 (28.3) |
85.1 (29.5) |
85.2 (29.6) |
80.5 (26.9) |
71.8 (22.1) |
62.0 (16.7) |
55.4 (13.0) |
70.5 (21.4) |
| Mean daily minimum °F (°C) | 43.7 (6.5) |
47.6 (8.7) |
53.6 (12.0) |
59.8 (15.4) |
67.8 (19.9) |
73.7 (23.2) |
75.7 (24.3) |
75.4 (24.1) |
70.6 (21.4) |
60.9 (16.1) |
51.5 (10.8) |
45.6 (7.6) |
60.5 (15.8) |
| Mean minimum °F (°C) | 27.5 (−2.5) |
31.6 (−0.2) |
35.0 (1.7) |
43.4 (6.3) |
53.8 (12.1) |
66.5 (19.2) |
70.5 (21.4) |
70.0 (21.1) |
58.3 (14.6) |
44.1 (6.7) |
34.2 (1.2) |
30.0 (−1.1) |
26.0 (−3.3) |
| Record low °F (°C) | 5 (−15) |
6 (−14) |
21 (−6) |
31 (−1) |
42 (6) |
52 (11) |
62 (17) |
54 (12) |
45 (7) |
29 (−2) |
19 (−7) |
7 (−14) |
5 (−15) |
| Average precipitation inches (mm) | 3.76 (96) |
2.97 (75) |
3.47 (88) |
3.95 (100) |
5.01 (127) |
6.00 (152) |
3.77 (96) |
4.84 (123) |
4.71 (120) |
5.46 (139) |
3.87 (98) |
4.03 (102) |
51.84 (1,317) |
| Average snowfall inches (cm) | 0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.1 (0.25) |
0.1 (0.25) |
| Average precipitation days (≥ 0.01 in) | 10.0 | 8.8 | 8.8 | 7.3 | 8.6 | 10.0 | 9.1 | 8.5 | 8.4 | 7.7 | 7.6 | 9.6 | 104.4 |
| Average snowy days (≥ 0.1 in) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 |
| Average relative humidity (%) | 74.7 | 73.4 | 72.7 | 73.1 | 75.0 | 74.6 | 74.4 | 75.1 | 76.8 | 75.4 | 76.0 | 75.5 | 74.7 |
| Average dew point °F (°C) | 41.5 (5.3) |
44.2 (6.8) |
51.3 (10.7) |
57.7 (14.3) |
65.1 (18.4) |
70.3 (21.3) |
72.1 (22.3) |
72.0 (22.2) |
68.5 (20.3) |
59.5 (15.3) |
51.4 (10.8) |
44.8 (7.1) |
58.2 (14.6) |
| Mean monthly sunshine hours | 143.4 | 155.0 | 192.5 | 209.8 | 249.2 | 281.3 | 293.9 | 270.5 | 236.5 | 228.8 | 168.3 | 148.7 | 2,577.9 |
| Percent possible sunshine | 44 | 50 | 52 | 54 | 59 | 67 | 68 | 66 | 64 | 64 | 53 | 47 | 58 |
| Average ultraviolet index | 3.5 | 5.0 | 7.1 | 8.6 | 9.6 | 10.3 | 9.9 | 9.5 | 8.1 | 5.9 | 4.0 | 3.2 | 7.0 |
| Source 1: NOAA (relative humidity and dew point 1969–1990, sun 1961–1990)[2][3][4] | |||||||||||||
| Source 2: UV Index Today (1995 to 2022)[5] | |||||||||||||
Notes
edit- ^ Mean monthly maxima and minima (i.e. the highest and lowest temperature readings during an entire month or year) calculated based on data at said location from 1991 to 2020.
- ^ Official records for Houston were kept at the Weather Bureau in downtown from July 1888 to May 1969, and at Intercontinental since June 1969.[1]
References
edit- ^ ThreadEx
- ^ "NowData – NOAA Online Weather Data". National Oceanic and Atmospheric Administration. Retrieved 2021-05-31.
- ^ "Station Name: TX HOUSTON INTERCONT AP". U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991–2020). National Oceanic & Atmospheric Administration. Retrieved 2021-05-31.
- ^ "WMO Climate Normals for HOUSTON/INTERCONTINENTAL, TX 1961–1990". National Oceanic and Atmospheric Administration. Retrieved 2020-07-18.
- ^ "Historical UV Index Data - Houston,TX". UV Index Today. Retrieved April 20, 2023.