For those of you interested in the reported air temperatures at Summit, the NOAA data for 2012 is illustrated here relative to several previous years of their JJA data (up to July 25th so far).
The data shown will be updated periodically through the end of August. And it bears repeating that the snow surface temperature (as tracked by MODIS or the passive microwave sensors, see the NASA press release) can differ by several degrees from the nominal 2 meter air temperature.
Christopher A. Shuman - Assoc. Research Scientist
UMBC Joint Center for Earth Systems Technology
Cryospheric Sciences Laboratory, Code 615
Greenbelt, MD 20771 - USA
(301) 614-5706 voice (301) 614-5666 fax