Template:Norfolk, Virginia weatherbox
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Record high °F (°C) | 84 (29) |
82 (28) |
92 (33) |
97 (36) |
100 (38) |
102 (39) |
105 (41) |
105 (41) |
100 (38) |
95 (35) |
86 (30) |
82 (28) |
105 (41) |
| Mean maximum °F (°C) | 72.4 (22.4) |
74.3 (23.5) |
80.7 (27.1) |
86.9 (30.5) |
91.5 (33.1) |
95.7 (35.4) |
98.4 (36.9) |
95.3 (35.2) |
92.0 (33.3) |
86.0 (30.0) |
78.9 (26.1) |
73.4 (23.0) |
99.3 (37.4) |
| Mean daily maximum °F (°C) | 50.7 (10.4) |
53.4 (11.9) |
60.1 (15.6) |
70.0 (21.1) |
77.4 (25.2) |
85.2 (29.6) |
89.4 (31.9) |
86.9 (30.5) |
81.4 (27.4) |
72.3 (22.4) |
62.1 (16.7) |
54.7 (12.6) |
70.3 (21.3) |
| Daily mean °F (°C) | 42.2 (5.7) |
44.2 (6.8) |
50.7 (10.4) |
60.1 (15.6) |
68.3 (20.2) |
76.7 (24.8) |
81.1 (27.3) |
79.2 (26.2) |
74.0 (23.3) |
63.7 (17.6) |
53.3 (11.8) |
46.1 (7.8) |
61.6 (16.4) |
| Mean daily minimum °F (°C) | 33.6 (0.9) |
35.1 (1.7) |
41.3 (5.2) |
50.1 (10.1) |
59.1 (15.1) |
68.1 (20.1) |
72.8 (22.7) |
71.6 (22.0) |
66.6 (19.2) |
55.1 (12.8) |
44.4 (6.9) |
37.6 (3.1) |
52.9 (11.6) |
| Mean minimum °F (°C) | 18.7 (−7.4) |
21.6 (−5.8) |
27.4 (−2.6) |
37.0 (2.8) |
46.9 (8.3) |
56.0 (13.3) |
64.7 (18.2) |
63.7 (17.6) |
55.5 (13.1) |
40.4 (4.7) |
29.8 (−1.2) |
23.9 (−4.5) |
16.8 (−8.4) |
| Record low °F (°C) | −3 (−19) |
2 (−17) |
14 (−10) |
23 (−5) |
36 (2) |
45 (7) |
54 (12) |
49 (9) |
40 (4) |
27 (−3) |
17 (−8) |
5 (−15) |
−3 (−19) |
| Average precipitation inches (mm) | 3.41 (87) |
2.90 (74) |
3.69 (94) |
3.37 (86) |
3.78 (96) |
4.43 (113) |
6.08 (154) |
5.88 (149) |
5.40 (137) |
3.86 (98) |
3.10 (79) |
3.28 (83) |
49.18 (1,249) |
| Average snowfall inches (cm) | 3.2 (8.1) |
1.5 (3.8) |
0.4 (1.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
1.1 (2.8) |
6.2 (16) |
| Average precipitation days (≥ 0.01 in) | 10.7 | 9.2 | 10.9 | 10.0 | 11.2 | 9.7 | 10.6 | 10.2 | 9.4 | 7.7 | 8.9 | 9.9 | 118.4 |
| Average snowy days (≥ 0.1 in) | 1.7 | 1.3 | 0.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.5 | 4.0 |
| Average relative humidity (%) | 66.3 | 65.6 | 64.6 | 62.8 | 68.8 | 70.6 | 73.3 | 75.2 | 74.4 | 72.1 | 68.5 | 67.0 | 69.1 |
| Average dew point °F (°C) | 27.9 (−2.3) |
28.9 (−1.7) |
35.8 (2.1) |
43.2 (6.2) |
54.5 (12.5) |
63.1 (17.3) |
68.2 (20.1) |
68.0 (20.0) |
62.4 (16.9) |
51.3 (10.7) |
41.7 (5.4) |
32.7 (0.4) |
48.1 (9.0) |
| Mean monthly sunshine hours | 171.5 | 175.2 | 229.3 | 252.8 | 271.7 | 280.1 | 278.3 | 260.4 | 231.4 | 208.3 | 175.7 | 160.4 | 2,695.1 |
| Percent possible sunshine | 56 | 58 | 62 | 64 | 62 | 64 | 62 | 62 | 62 | 60 | 57 | 53 | 61 |
| Average ultraviolet index | 2 | 4 | 5 | 7 | 8 | 10 | 9 | 9 | 7 | 5 | 3 | 2 | 6 |
| Source 1: NOAA (relative humidity and sun 1961–1990)[1][2][3] | |||||||||||||
| Source 2: Weather Atlas (UV)[4] | |||||||||||||
References
- ^ "NowData – NOAA Online Weather Data". National Oceanic and Atmospheric Administration. Retrieved May 18, 2021.
- ^ "Station: NORFOLK INTL AP, VA". U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991–2020). National Oceanic and Atmospheric Administration. Retrieved May 18, 2021.
- ^ "WMO Climate Normals for NORFOLK/INTL, VA 1961–1990". National Oceanic and Atmospheric Administration. Retrieved July 29, 2020.
- ^ "Norfolk, Virginia, USA - Monthly weather forecast and Climate data". Weather Atlas. Retrieved July 3, 2019.
- ^ 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 Norfolk kept January 1874 to December 1945 at the Weather Bureau Office in downtown, and at Norfolk Int'l since January 1946. For more information, see Threadex.