I realize it must have to do with sun/shade issued on the sensor or stagnant air, but it's funny to watch the temp readings on the buoy near the pole. It apparently went off the scale >20C for a couple readings:

http://psc.apl.washington.edu/northpole/ICEX835100_atmos_recent.html07/30/1100Z 85.766°N 84.282°W 0.6°C 1020.7mb

07/30/1000Z 85.767°N 84.325°W 1.4°C 1021.1mb

07/30/0900Z 85.769°N 84.361°W 2.0°C 1021.4mb

07/30/0800Z 85.770°N 84.389°W 2.4°C 1021.5mb

07/30/0700Z 85.771°N 84.414°W 2.7°C 1021.7mb

07/30/0600Z 85.772°N 84.435°W 4.4°C 1022.0mb

07/30/0500Z 85.772°N 84.449°W 5.6°C 1022.1mb

07/30/0400Z 85.772°N 84.464°W 7.0°C 1022.0mb

07/30/0300Z 85.773°N 84.477°W 10.4°C 1021.9mb

07/30/0200Z 85.773°N 84.485°W 13.1°C 1021.9mb

07/30/0100Z 85.773°N 84.494°W 14.4°C 1022.2mb

07/30/0000Z 85.773°N 84.504°W 15.9°C 1021.9mb

07/29/2300Z 85.774°N 84.515°W 18.0°C 1021.7mb

07/29/2200Z 85.774°N 84.525°W 19.5°C 1021.5mb

**07/29/2100Z 85.774°N 84.530°W -999.9°C 1021.3mb **

07/29/2000Z 85.775°N 84.532°W -999.9°C 1021.0mb 07/29/1900Z 85.775°N 84.533°W 18.5°C 1020.7mb

07/29/1800Z 85.775°N 84.534°W 16.0°C 1020.3mb

07/29/1700Z 85.775°N 84.535°W 13.9°C 1019.9mb

07/29/1600Z 85.774°N 84.538°W 14.6°C 1019.6mb

07/29/1500Z 85.774°N 84.543°W 13.4°C 1019.2mb

07/29/1400Z 85.774°N 84.551°W 12.3°C 1018.8mb

07/29/1300Z 85.774°N 84.563°W 10.9°C 1018.4mb

07/29/1200Z 85.774°N 84.572°W 10.2°C 1018.0mb