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Apalachicola water levels in 1999
Annual rank25 / 54
vs. average-1.5 cm
Highest monthly peak0.67 mSeptember 1999
Monthly mean vs. previous year
| Month | 1999 (cm) | 1998 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -4.4 | -0.8 | -3.6 | 0.53 |
| Feb | -1.1 | 8.4 | -9.5 | 0.59 |
| Mar | -2.2 | 20.1 | -22.3 | 0.57 |
| Apr | -1.5 | 20.8 | -22.3 | 0.48 |
| May | 3.5 | 5.5 | -2.0 | 0.54 |
| Jun | 1.9 | -4.1 | 6.0 | 0.36 |
| Jul | 2.6 | -4.6 | 7.2 | – |
| Aug | 7.6 | 3.0 | 4.6 | 0.41 |
| Sep | 15.2 | 27.7 | -12.5 | 0.67 |
| Oct | 7.0 | 10.7 | -3.7 | 0.44 |
| Nov | -1.9 | -0.7 | -1.2 | 0.41 |
| Dec | -8.3 | -7.1 | -1.2 | 0.44 |
Nearby years (cm vs. average)
+0.3
-1.3
-4.6
-4.4
+3.5
-1.5
-4.1
-5.7
-3.5
+1.8
-2.6
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 1999 annual mean water level ranked 25 of 54 years (-1.5 cm vs. the period average).