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Galveston Railroad Bridge water levels in 2021
Annual rank4 / 9
vs. average1.1 cm
Highest monthly peak1.24 mSeptember 2021
Monthly mean vs. previous year
| Month | 2021 (cm) | 2020 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -3.1 | 16.5 | -19.6 | 0.42 |
| Feb | 4.4 | 7.2 | -2.8 | 0.49 |
| Mar | 18.1 | 18.7 | -0.6 | 0.82 |
| Apr | 29.6 | 34.3 | -4.7 | 0.87 |
| May | 33.7 | 27.4 | 6.3 | 0.94 |
| Jun | 25.7 | 30.2 | -4.5 | 0.63 |
| Jul | 16.2 | 19.0 | -2.8 | 0.62 |
| Aug | 20.0 | 19.4 | 0.6 | 0.66 |
| Sep | 27.3 | 45.2 | -17.9 | 1.24 |
| Oct | 32.2 | 35.4 | -3.2 | 0.82 |
| Nov | 25.7 | 32.2 | -6.5 | 0.62 |
| Dec | 18.3 | 3.1 | 15.2 | 0.46 |
Nearby years (cm vs. average)
-2.1
-5.0
+4.8
+4.4
+1.1
-2.1
-1.8
+2.7
-2.2
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2021 annual mean water level ranked 4 of 9 years (1.1 cm vs. the period average).