Climate

Average Temperature
Allows the user to access average temperature data by month for virtually any location in the world.
http://www.Average-Temperature.com

Cape Grim: Cape Grim Baseline Air Pollution Station
This station in north-west Tasmania supplies vital information about changes to the atmospheric composition of the Southern Hemisphere.
http://www.csiro.au/places/CapeGrim.html

Climate and Radiation
From the NASA/Goddard Space Flight Center. Includes information about aerosols, clouds, rainfall, remote sensing, current projects, publications and personnel.
http://climate.gsfc.nasa.gov/

Climate Models Prove More Reliable
Research in the UK has shown that climate change models depend far more on the input parameters such as cloud properties, than the computer hardware or software used as many scientists had previously feared.
http://environmentalresearchweb.org/cws/article/research/30501

NCDC: Get/View OnLine Climate Data
Repository of U.S. weather observations and climate data, including maps, models, links and publications.
http://lwf.ncdc.noaa.gov/oa/climate/climatedata.html

Suite 101: Meteorology and Climatology
Informative articles on weather data, events, climatology, climate change and other timely weather and climate information.
http://meteorologyclimatology.suite101.com/

USA Climate: State Index
Provides climate charts showing precipitation, temperature, and degree days. Based on NOAA US daily climate normals 1971-2000.
http://www.chartsgraphsdiagrams.com/climate/USA-climate.html

World Climate
Climate data and sunrise and sunset displayed in charts and tables for more than 12,000 specific locations in over 140 countries and regions.
http://www.climate-charts.com/

World Climate Data
Weather rainfall and temperature data with long-term monthly averages for over 20,000 weather stations worldwide.
http://www.worldclimate.com/