Weather

Estimates were extrapolated using statistical models (Kriging) from proximate reporting locations, based on a meta-analysis of numerous climate reports (e.g. BBC Climate, Climate Chart, Climate Temp, MSN Climate, National Oceanic and Atmospheric Administration Satellite and Information Service - Global Historical Climatology Network, Tokyo Climate Center, Weather Base, World Climate and World Weather). Proximity reflects the distances required for the extrapolations. For example, "Highest" indicates that the distances relied upon were less than 40 kilometers distant from existing measurement location. "High" indicates distances less than 60 kilometers, "Medium" indicates distances of less than 100 kilometers, "Low" indicates distances of less than 150 kilometers, and "Lowest" indicates distances greater than 150 kilometers. The more proximate the estimate, the more likely the estimates reflect local climatic conditions.

The Wet Bulb Globe Temperature (WBGT) is a composite temperature used to estimate the effect of temperature, humidity, wind speed (wind chill) and solar radiation on humans. It is used by various professions, including industrial hygienists, athletes, and the military, to determine appropriate exposure levels to high temperatures. Similarly, the heat index (HI) is an index that combines air temperature and relative humidity in an attempt to determine the human-perceived equivalent temperature - how hot it feels, termed the felt air or "feels like" temperature. The wet-bulb temperature is the temperature one feels when one's skin is wet and is exposed to moving air. It is the lowest temperature that can be reached by the evaporation of water only, and is a type of temperature measurement that reflects the physical properties of a system with a mixture of a gas and a vapor, usually air and water vapor. All of the estimates provided were generated and are occasionally refined by Professor Philip M. Parker, INSEAD Chair Professor of Management Science.

Wet Bulb Global Temperature:  The Wet Bulb Globe Temperature (WBGT) is a composite temperature used to estimate the effect of temperature, humidity, wind speed (wind chill) and solar radiation on humans. It is used by various professions, including industrial hygienists, athletes, and the military, to determine appropriate exposure levels to high temperatures. 

Heat Index:  Similarly, the heat index (HI) is an index that combines air temperature and relative humidity in an attempt to determine the human-perceived equivalent temperature - how hot it feels, termed the felt air or "feels like" temperature. 

Wet-Bulb Temperature:  The wet-bulb temperature is the temperature one feels when one's skin is wet and is exposed to moving air. It is the lowest temperature that can be reached by the evaporation of water only, and is a type of temperature measurement that reflects the physical properties of a system with a mixture of a gas and a vapor, usually air and water vapor. 

Beaufort Index:  The Beaufort scale is an empirical measure that relates wind speed to observed conditions at sea or on land. Its full name is the Beaufort wind force scale, although it is a measure of wind speed and not of force in the scientific sense.