Yes, it's another hottest on record, this time in March 2016. According to GISS NASA, the average for March was 1.28 °C, which is 0.36 °C above the previous hottest March, in 2010. It's the second highest anomaly for any month, the highest being last month, February, which was 1.34 °C.
The average for the three months to the end of March is 1.25 °C, which is 0.39 °C higher than any previous Jan-March period. The previous highest was last year with an anomaly of 0.86 °C. This is the sixth month in a row of "hottest months", all of which had an anomaly more than one degree Celsius above the 1951-1980 mean. Update: I did a quick check and that hasn't happened before in the record since at least the 1950s. Earlier times probably aren't sufficiently accurate on a month by month basis to say and, in any case, pre-1950s temperatures would probably have been hotter at some time in the last couple of millenia.
Below is a chart of the month of March only:
|Figure 1 | Global mean temperature anomaly - month of March only. Data source: GISS NASA.|
|Figure 2 | Global mean surface temperature for El Nino years. Data source: GISS NASA|
The high latitudes in the northern hemisphere had the highest anomalies this month, as they did in February. This month the heat spread out and down a bit in parts, particularly down in Africa from the look of it. The record hot March in south eastern Australia can be seen too.
|Figure 3 | Map showing mean surface temperature, anomalies for March, from the 1951-1980 mean. Source: GISS NASA|
|Figure 4 | Map showing mean surface temperature, anomalies for February, from the 1951-1980 mean. Source: GISS NASA|
Like last month, it's still too soon to be tracking the year to date, but if you're interested, here it is to the end of March:
|Figure 5 | Global mean surface temperature, progressive year to date to March 2016. Data source. GISS NASA|