Template:Anchorage weatherbox
| Climate data for Ted Stevens Anchorage International Airport, Alaska (1991−2020 normals,[1] extremes 1953−present) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °F (°C) | 50 (10) |
49 (9) |
53 (12) |
69 (21) |
77 (25) |
85 (29) |
90 (32) |
82 (28) |
73 (23) |
64 (18) |
54 (12) |
51 (11) |
90 (32) |
| Mean maximum °F (°C) | 41.8 (5.4) |
42.7 (5.9) |
44.2 (6.8) |
56.3 (13.5) |
69.5 (20.8) |
74.5 (23.6) |
76.0 (24.4) |
73.7 (23.2) |
65.0 (18.3) |
54.8 (12.7) |
42.7 (5.9) |
42.3 (5.7) |
77.7 (25.4) |
| Mean daily maximum °F (°C) | 22.7 (−5.2) |
27.3 (−2.6) |
33.0 (0.6) |
45.1 (7.3) |
56.3 (13.5) |
63.4 (17.4) |
66.2 (19.0) |
64.0 (17.8) |
55.7 (13.2) |
42.0 (5.6) |
28.9 (−1.7) |
25.0 (−3.9) |
44.1 (6.7) |
| Daily mean °F (°C) | 16.9 (−8.4) |
21.3 (−5.9) |
25.8 (−3.4) |
37.5 (3.1) |
48.1 (8.9) |
55.9 (13.3) |
59.6 (15.3) |
57.5 (14.2) |
49.3 (9.6) |
36.3 (2.4) |
23.6 (−4.7) |
19.4 (−7.0) |
37.6 (3.1) |
| Mean daily minimum °F (°C) | 11.0 (−11.7) |
15.2 (−9.3) |
18.6 (−7.4) |
29.9 (−1.2) |
40.0 (4.4) |
48.4 (9.1) |
52.9 (11.6) |
50.9 (10.5) |
42.9 (6.1) |
30.7 (−0.7) |
18.3 (−7.6) |
13.8 (−10.1) |
31.0 (−0.6) |
| Mean minimum °F (°C) | −9.3 (−22.9) |
−3.6 (−19.8) |
1.2 (−17.1) |
17.6 (−8.0) |
30.7 (−0.7) |
40.5 (4.7) |
46.7 (8.2) |
42.7 (5.9) |
30.9 (−0.6) |
16.1 (−8.8) |
0.8 (−17.3) |
−4.9 (−20.5) |
−13.2 (−25.1) |
| Record low °F (°C) | −34 (−37) |
−28 (−33) |
−24 (−31) |
−4 (−20) |
17 (−8) |
33 (1) |
36 (2) |
31 (−1) |
19 (−7) |
−5 (−21) |
−21 (−29) |
−30 (−34) |
−34 (−37) |
| Average precipitation inches (mm) | 0.75 (19) |
0.86 (22) |
0.69 (18) |
0.43 (11) |
0.65 (17) |
1.02 (26) |
1.82 (46) |
2.93 (74) |
3.10 (79) |
1.82 (46) |
1.19 (30) |
1.16 (29) |
16.42 (417) |
| Average snowfall inches (cm) | 12.4 (31) |
13.4 (34) |
11.0 (28) |
4.0 (10) |
0.3 (0.76) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.4 (1.0) |
5.6 (14) |
12.6 (32) |
18.2 (46) |
77.9 (198) |
| Average extreme snow depth inches (cm) | 16.4 (42) |
19.0 (48) |
19.9 (51) |
12.7 (32) |
0.3 (0.76) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.2 (0.51) |
3.2 (8.1) |
8.8 (22) |
14.7 (37) |
24.5 (62) |
| Average precipitation days (≥ 0.01 in) | 8.1 | 7.9 | 6.0 | 4.9 | 6.5 | 8.6 | 11.7 | 14.4 | 14.9 | 11.5 | 9.8 | 10.8 | 115.1 |
| Average snowy days (≥ 0.1 in) | 8.8 | 7.8 | 6.1 | 2.5 | 0.3 | 0.0 | 0.0 | 0.0 | 0.3 | 3.2 | 7.7 | 10.8 | 47.5 |
| Average relative humidity (%) | 73.4 | 71.4 | 66.1 | 64.3 | 61.6 | 65.6 | 71.4 | 75.1 | 75.9 | 74.5 | 77.1 | 77.1 | 71.1 |
| Average dew point °F (°C) | 8.1 (−13.3) |
11.1 (−11.6) |
15.4 (−9.2) |
24.1 (−4.4) |
33.4 (0.8) |
42.4 (5.8) |
48.6 (9.2) |
47.8 (8.8) |
40.6 (4.8) |
27.0 (−2.8) |
15.3 (−9.3) |
10.6 (−11.9) |
27.0 (−2.8) |
| Mean monthly sunshine hours | 82.9 | 120.5 | 195.8 | 235.3 | 288.7 | 274.7 | 250.1 | 203.9 | 159.8 | 117.1 | 80.6 | 51.8 | 2,061.2 |
| Percent possible sunshine | 41 | 48 | 53 | 53 | 53 | 48 | 44 | 42 | 41 | 38 | 37 | 30 | 46 |
| Average ultraviolet index | 0 | 0 | 1 | 2 | 4 | 5 | 5 | 4 | 2 | 1 | 0 | 0 | 2 |
| Source 1: NOAA (relative humidity and sun 1961–1990)[2][3][4] | |||||||||||||
| Source 2: Weather Atlas (UV)[5] | |||||||||||||
| Climate data for Anchorage | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Average sea temperature °F (°C) | 36.9 (2.8) |
35.8 (2.1) |
36.1 (2.3) |
37.5 (3.0) |
42.4 (5.8) |
47.7 (8.8) |
52.4 (11.3) |
53.1 (11.7) |
51.6 (10.9) |
47.5 (8.6) |
43.0 (6.1) |
39.6 (4.2) |
43.6 (6.5) |
| Mean daily daylight hours | 7.0 | 9.0 | 12.0 | 15.0 | 18.0 | 19.0 | 18.0 | 16.0 | 13.0 | 10.0 | 7.0 | 6.0 | 12.5 |
| Source: Weather Atlas[5] | |||||||||||||
References
[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.
- ^ "NowData – NOAA Online Weather Data". National Oceanic and Atmospheric Administration. Retrieved May 29, 2021.
- ^ "Station: Anchorage INTL AP, AK". U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991–2020). National Oceanic and Atmospheric Administration. Archived from the original on 2023-07-14. Retrieved May 29, 2021.
- ^ "WMO climate normals for Anchorage/INTL, AK 1961−1990". National Oceanic and Atmospheric Administration. Archived from the original on 2023-07-14. Retrieved August 30, 2020.
- ^ a b "Anchorage, Alaska, USA - Monthly weather forecast and Climate data". Weather Atlas. Retrieved July 4, 2019.