The satellite data for march from Remote Sensing Systems (RSS) has been released. The results indicate that for two months in a row the data have shown a downward trend. This is by no means momentus however the longer term trend over the last five years continues to be in a downward phase. The latest graph is presented below.
As you can see from the Loess functions, the trend for the last five years shows a general downward trend. However, the period of the 2000s is still substantially higher (statistically significant) than the other decades (i.e. 1980s and 1990s). The persistent trend downward in recent years places in doubt any declaration that global warming is accelerating or even increasing at the moment. A pdf copy of the graph can be downloaded here.