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Prudhoe Bay water levels in 2021
Annual rank8 / 35
vs. average6.1 cm
Highest monthly peak0.88 mAugust 2021
Monthly mean vs. previous year
| Month | 2021 (cm) | 2020 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -0.4 | 4.7 | -5.1 | 0.29 |
| Feb | -7.9 | 4.8 | -12.7 | 0.38 |
| Mar | -2.5 | 13.1 | -15.6 | 0.30 |
| Apr | -9.3 | 5.5 | -14.8 | 0.17 |
| May | -10.4 | -3.0 | -7.4 | 0.22 |
| Jun | 21.7 | 25.7 | -4.0 | 0.55 |
| Jul | 29.7 | 16.4 | 13.3 | 0.69 |
| Aug | 40.5 | 17.8 | 22.7 | 0.88 |
| Sep | 28.1 | 12.9 | 15.2 | 0.64 |
| Oct | 14.0 | 5.3 | 8.7 | 0.52 |
| Nov | 4.0 | 25.6 | -21.6 | 0.52 |
| Dec | 12.3 | 7.2 | 5.1 | 0.77 |
Nearby years (cm vs. average)
+7.2
+7.9
+5.5
+8.2
+7.5
+6.1
+4.4
+11.4
+11.1
+13.9
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2021 annual mean water level ranked 8 of 35 years (6.1 cm vs. the period average).