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On 13 January 2013, Kanpur recorded its all-time low temperature when the temperature plunged to −1.1 °C or 30.0 °F and on the same day, Agra recorded −0.7 °C or 30.7 °F. In January, in Lucknow , the temperature can plunge below freezing; Lucknow recorded 0.0 °C or 32.0 °F on 18 January 2017.
This is a list of countries and sovereign states by temperature. Average yearly temperature is calculated by averaging the minimum and maximum daily temperatures in the country, averaged for the years 1991 – 2020, from World Bank Group , derived from raw gridded climatologies from the Climatic Research Unit .
(The degree, in Celsius and measured relative to a base temperature, is identical to the kelvin, the SI base unit). Expressed as a proper SI unit, a quantity of kelvin second is four orders of magnitude higher than the corresponding degree day (1 Celsius degree-day is 8.64×10 4 K·s; 1 Fahrenheit degree-day is 4.8×10 4 K·s).
Summers are very hot with temperatures rising into the 40 to 45 °C (104 to 113 °F) range, the average maxima being in the high 30s Celsius. Lucknow has been ranked 4th best "National Clean Air City" (under Category 1 >10L Population cities) in India. [41]
Growing degrees (GDs) is defined as the number of temperature degrees above a certain threshold base temperature, which varies among crop species. The base temperature is that temperature below which plant growth is zero. GDs are calculated each day as maximum temperature plus the minimum temperature divided by 2, minus the base temperature.
Highest minimum temperature for a 24-hour period and for a calendar day: 42.6 °C (108.7 °F) at Qurayyat, Oman on 25 June 2018. [ 194 ] Highest average monthly temperature: 42.3 °C (108.1 °F), in Death Valley, California, for the month of July 2018.
In contrast, ambient temperature is the actual temperature, as measured by a thermometer, of the air (or other medium and surroundings) in any particular place. The ambient temperature (e.g. an unheated room in winter) may be very different from an ideal room temperature .
Winds aloft, officially known as the winds and temperatures aloft forecast, (known as "FD" in the US and Canada, but becoming known as "FB", following the World Meteorological Organization [WMO] nomenclature), is a forecast of specific atmospheric conditions in terms of wind and temperature at certain altitudes, typically measured in feet (ft) above mean sea level (MSL).