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Names of countries (areas) and stations are those used in WMO Publication No. 9, Vol. A--Stations, except that long names may be shortened. Only those stations authorized as contributors by the WMO in VOLUME A are published. "Means" and "totals" mentioned below are monthly summary means and totals. Units abbreviations: celsius = C, degrees = o, geopotential meters = gpm, meters = m, hectopascals = hPa, millimeters = mm, minutes = ', percent = %.
The long term surface data AVERAGES required for these tables were calculated for 1961-1990 from data received at the National Climatic Data Center during those years. Six years of data were considered to be the minimum for calculations.
Departures are differences between data and the AVERAGES for that month. Precipitation departure of "T" or "-T" indicates a difference less than 0.5 mm from AVERAGE.
Provisional upper air normals, although not published in this bulletin, can be obtained from WMO Pub. No. 170. A description of procedures used by Members appeared in Monthly Climatic Data for the World, 1967 Supplement--computation of CLIMAT TEMP values.
Late reports and corrections are ...