Roy Spencer has just released the UAH satellite analysis team’s estimate of the lower troposphere global temperature anomaly for the month of May. It stands at 0.04 deg C; the anomaly has dropped each month since February when it stood at 0.36 deg C.
But as seen in the graph below, this is a continuation of the clear annual pattern seen over the last few years.
[Update, June 6: As background for those who are becoming aware of the UAH annual cycle for the first time, here is a chart of global monthly temperature trends in the two satellite-based lower troposphere series (UAH, RSS) and the three surface series (NASA-GISS, HadCRU and NOAA).
Note the strong divergence in UAH monthly trends.]
Such a strong annual cycle is simply not credible, and casts serious doubts on the validity of this temperature series. For more on the UAH annual cycle see my previous posts on the topic (part 1 here and part 2 here).