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The Mahoney Tables (Evans, 1999; Evans, 2001) proposed a climate analysis sequence that starts with the basic and widely available monthly climatic data of temperature, humidity and rainfall, such as that found in HMSO (1958) and Pearce and Smith (1990), or data published by national meteorological services, for example SMN (1995).
The representation is made on a temperature-relative humidity, instead of a standard psychrometric chart. The comfort zone in blue represents the 90% of acceptability, which means the conditions between -0.5 and +0.5 PMV, or PPD < 10%.
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Climate charts provide an overview of the climate in a particular place. The letters in the top row stand for months: January, February, etc. The bars and numbers convey the following information: The blue bars represent the average amount of precipitation (rain, snow etc.) that falls in each month. The blue numbers are the amount of ...
Download as PDF; Printable version; In other projects ... Month Jan Feb Mar Apr May Jun Jul Aug Sep ... Average relative humidity (%) (at 17:30 IST) 41 32 29 35 47 62 ...
When this wind blows over Egypt, it causes high temperatures to soar temporarily at dangerous levels, usually over 49–50 °C (120–122 °F), the relative humidity levels to drop under 5%. The khamasīn causes sudden, early heat waves and the absolute highest temperature records in Egypt.
While temperature is typically visualized using a line, some climographs opt to visualize the data using a bar. This method's advantage allows the climograph to display the average range in temperature (average minimum and average maximum temperatures) rather than a simple monthly average.
Cairns's mean annual rainfall is just under 2,000 millimetres (79 in), although monthly totals in the wet season from December to April can exceed 1,000 mm (39 in), with the highest monthly rainfall being recorded in January 1981, when over 1,417.4 mm (55.80 in) of rain fell. [37]