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Pollution is a major concern in Kolkata, and the Suspended Particulate Matter (SPM) level is high when compared to other major cities of India, [5] [6] leading to regular smog and haze. Severe air pollution in the city has caused a rise in pollution-related respiratory ailments such as lung cancer. [7]
Average relative humidity (%) (at 17:30 IST) 62 55 51 61 68 77 82 83 82 76 68 ... Climate data for Kolkata (Dumdum Airport) 1991–2020, extremes 1939–2020 Month ...
The humidity adjustment approximately amounts to one Fahrenheit degree for every millibar by which the partial pressure of water in the atmosphere exceeds 10 millibars (10 hPa). At the time the humidex was originally developed in 1965, Canada was still on the Fahrenheit scale , and thus the humidex was originally based on that.
For temperatures in degrees Fahrenheit, these approximations work out to , (); (,); For example, a relative humidity of 100% means dew point is the same as air temp. For 90% RH, dew point is 3 °F lower than air temperature.
T w = Natural wet-bulb temperature (combined with dry-bulb temperature indicates humidity) T g = Globe thermometer temperature (measured with a globe thermometer, also known as a black globe thermometer) T d = Dry-bulb temperature (actual air temperature) Temperatures may be in either Celsius or Fahrenheit; Indoors the following formula is used:
A view from the top of the observatory tower at Mount Washington State Park, where the wind chill dropped to 105 degrees below zero Fahrenheit (-79 Celsius) is seen in a still image from a live ...
In Bengal, summers can be extremely hot and have high humidity. The plains of South Bengal have a daily maximum temperature around 35–38 °C. ... Climate data for ...
A humid subtropical climate is a subtropical-temperate climate type, characterized by long and hot summers, and cool to mild winters. These climates normally lie on the southeast side of all continents (except Antarctica), generally between latitudes 25° and 40° and are located poleward from adjacent tropical climates, and equatorward from either humid continental (in North America and Asia ...