The swamp received its first dry season rain ...
But does it matter?
In fact it counts double!
The reason for that is that the water cycle has now entered into -- from December through early February -- what I like to call "low evapotranspiration (ET)" season. With loss of water to the sky at a minimum (thanks to the cooler air), a little winter rain can go a long way.
Or in the lack of rain water levels only recede slowly.
That's the corollary.