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Sand Point, Popof Island water levels in 2021
Annual rank5 / 50
vs. average8.3 cm
Highest monthly peak2.14 mJanuary 2021
Monthly mean vs. previous year
| Month | 2021 (cm) | 2020 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 35.6 | 7.0 | 28.6 | 2.14 |
| Feb | 15.0 | 5.6 | 9.4 | 2.01 |
| Mar | -7.3 | -24.0 | 16.7 | 1.28 |
| Apr | -3.5 | -12.3 | 8.8 | 1.66 |
| May | 6.8 | 1.0 | 5.8 | 1.69 |
| Jun | 11.3 | -1.3 | 12.6 | 1.99 |
| Jul | 2.0 | -6.1 | 8.1 | 1.52 |
| Aug | 5.2 | 8.3 | -3.1 | 1.36 |
| Sep | 19.2 | 13.7 | 5.5 | 1.37 |
| Oct | 22.1 | 19.1 | 3.0 | 1.82 |
| Nov | 22.0 | 14.8 | 7.2 | 1.67 |
| Dec | -4.0 | 38.2 | -42.2 | 1.82 |
Nearby years (cm vs. average)
+14.4
-1.5
+1.4
+1.0
+3.3
+8.3
+11.8
+13.4
+13.4
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2021 annual mean water level ranked 5 of 50 years (8.3 cm vs. the period average).