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San Juan water levels in 1990
Annual rank52 / 57
vs. average-5.1 cm
Highest monthly peak0.46 mNovember 1990
Monthly mean vs. previous year
| Month | 1990 (cm) | 1989 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -6.8 | – | – | 0.28 |
| Feb | -5.9 | – | – | 0.31 |
| Mar | -10.5 | – | – | 0.23 |
| Apr | -7.1 | -8.3 | 1.2 | 0.30 |
| May | -8.3 | -8.6 | 0.3 | 0.33 |
| Jun | -9.9 | -8.9 | -1.0 | 0.30 |
| Jul | -5.6 | -5.0 | -0.6 | 0.30 |
| Aug | -1.9 | – | – | 0.30 |
| Sep | 1.7 | – | – | 0.30 |
| Oct | 6.3 | 0.8 | 5.5 | 0.43 |
| Nov | 2.6 | -0.7 | 3.3 | 0.46 |
| Dec | -0.4 | -6.5 | 6.1 | 0.44 |
Nearby years (cm vs. average)
-0.5
-1.7
-2.7
-5.1
+0.0
+0.1
-2.0
+2.0
-3.0
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 1990 annual mean water level ranked 52 of 57 years (-5.1 cm vs. the period average).