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Apra Harbor, Guam water levels in 2020
Annual rank17 / 73
vs. average6.7 cm
Highest monthly peak0.55 mAugust 2020
Monthly mean vs. previous year
| Month | 2020 (cm) | 2019 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -1.2 | -14.7 | 13.5 | 0.42 |
| Feb | 1.6 | -6.2 | 7.8 | 0.43 |
| Mar | 5.9 | 2.2 | 3.7 | 0.48 |
| Apr | 5.1 | 6.4 | -1.3 | 0.42 |
| May | 6.8 | 14.8 | -8.0 | 0.46 |
| Jun | 11.9 | 16.9 | -5.0 | 0.51 |
| Jul | 18.4 | 18.7 | -0.3 | 0.54 |
| Aug | 19.0 | 17.2 | 1.8 | 0.55 |
| Sep | 18.1 | 14.5 | 3.6 | 0.54 |
| Oct | 11.8 | 9.3 | 2.5 | 0.51 |
| Nov | 11.6 | 3.7 | 7.9 | 0.47 |
| Dec | 10.5 | -3.3 | 13.8 | 0.48 |
Nearby years (cm vs. average)
-5.2
-0.7
+11.6
+4.8
+3.3
+6.7
+17.2
+15.9
+7.3
+15.0
+20.8
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2020 annual mean water level ranked 17 of 73 years (6.7 cm vs. the period average).