June 2009 Global Temperature Anomaly Update: 0.00 deg. C
June 2009 saw another — albeit small — drop in the global average temperature anomaly, from +0.04 deg. C in May to 0.00 deg. C in June, with the coolest anomaly (-0.03 deg. C) in the Southern Hemisphere. The decadal temperature trend for the period December 1978 through June 2009 remains at +0.13 deg. C per decade. Roy Spencer