Table 3-8. Highest and Lowest Water Levels — Continued
t Tsunami levels not included.
Location
Observation
Period
Diurnal
Range
(feet)
Highest Water Levels
Above Mean High Water
(feet)
Lowest Water Levels
Below Low Water
(feet)
Average
Yearly
Highest
Extrême
High
Date of
Record
Average
Yearly
Lowest
Extrême
Low
Date of
Record
PACIFIC COASTt
San Diego, Calif.
1906-70
5.7
1.8
2.6
20 Dec 68
2.0
2.8
17 Dec 33
29 Dec 59
17 Dec 37
La Jolla, Calif.
1925-53
1956-70
5.2
1.8
2.4
20 Dec 68
1.9
2.6
17 Dec 33
Los Angeles, Calif.
1924-70
5.4
1.8
2.3
19,20 Dec 68
1.8
2.6
26 Dec 32
17 Dec 33
Santa Monica, Calif.
1933-70
5.4
1.8
2.1
27 Dec 36
17,18 Jul 51
1.8
2.7
17 Dec 33
San Francisco, Calif.
1898-1970
5.7
1.5
2.3
24 Dec 40
2.1
2.7
26 Dec 32
19 Jan 69
17 Dec 33
9 Jan 70
Crescent City, Calif.
1933-46
1950-70
6.9
2.4
3.1
4Feb 58
2.4
2.9
22 May 55
Astoria, Oreg.
1925-70
8.3
2.6
3.8
17 Dec 33
1.9
2.8
16 Jan 30
Neah Bay, Wash.
1935-70
8.2
2.9
4.1
30 Nov 51
3.1
3.8
29 Nov 36
Seattle, Wash.
1899-1970 11.3
2.2
3.3
6 Feb 04
3.9
4.7
4Jan 16
5 Dec 67
20Jun 51
Friday Harbor, Wash.
1934-70
7.7
2.3
3.2
30 Dec 52
3.2
4.0
7Jan 47
Ketchikan, Alaska
1919-70
15.3
4.4
5.9
2 Dec 67
4.5
5.2
8 Dec 19
16Jan 57
30 Dec 59
Juneau, Alaska
1936-41
1944-70
16.4
5.0
6.3
2 Nov 48
4.5
5.7
16Jan 57
Skagway, Alaska
1945-62
16.7
4.9
6.7
22 Oct 45
5.0
6.0
16Jan 57
Sitka, Alaska
1938-70
9.9
3.4
4.7
2 Nov 48
3.2
3.8
19Jun 51
16 Jan 57
Yakutat, Alaska
1940-70
10.1
3.7
4.8
2 Nov 48
3.1
3.9
29 Dec 51
16 Jan 57
Seward, Alaska
1925-38
10.6
3.4
4.1
13 Oct 27
3.5
4.2
14 Jan 30
Kodiak Island, Alaska
Womens Bay
1949-63
8.8
2.8
3.7
21 Nov 49
2.9
3.6
15,16Jan 57
Unalaska Island, Alaska
Dutch Harbor
1934-39
1946-70
3.7
2.0
2.9
14,15 Jan 38
2.0
2.7
13 Nov 50
Adak Island, Alaska
Sweeper Cove
1943-70
3.7
1.8
' 2.7
28 Dec 66
2.3
3.3
11 Nov 50
Attu Island, Alaska
Massacre Bay
1943-69
3.3
1.6
2.4
6 Jan 66
1.7
2.4
12,13 Nov 50
3-91