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Sand Point, Popof Island water levels in 2018
Annual rank18 / 50
vs. average1.4 cm
Highest monthly peak2.19 mJanuary 2018
Monthly mean vs. previous year
| Month | 2018 (cm) | 2017 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 20.6 | 6.0 | 14.6 | 2.19 |
| Feb | -10.6 | -0.5 | -10.1 | 1.77 |
| Mar | -17.0 | -5.0 | -12.0 | 1.14 |
| Apr | -0.3 | 2.9 | -3.2 | 1.46 |
| May | -0.8 | -6.0 | 5.2 | 1.42 |
| Jun | -1.8 | -3.2 | 1.4 | 1.64 |
| Jul | -9.3 | -9.9 | 0.6 | 1.55 |
| Aug | -6.1 | 1.5 | -7.6 | 1.65 |
| Sep | -9.5 | 6.2 | -15.7 | 1.21 |
| Oct | 19.8 | -2.2 | 22.0 | 1.59 |
| Nov | 28.8 | -1.5 | 30.3 | 2.15 |
| Dec | 27.7 | 18.2 | 9.5 | 1.90 |
Nearby years (cm vs. average)
-5.7
+6.8
+7.5
+14.4
-1.5
+1.4
+1.0
+3.3
+8.3
+11.8
+13.4
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2018 annual mean water level ranked 18 of 50 years (1.4 cm vs. the period average).