Monthly-averaged hourly solar diffuse radiation models for world-wide locations

Future Cities and Environment

Table 1 Climatic data for Easthampstead (Bracknell) with the NASA reported irradiation data and averaged measured data for the period 1981-1983

	Unit	Climate data location
Latitude	°N	51,42
Longitude	°E	–0,75
Elevation	m	58,00
Heating design temperature	°C	–1,74
Cooling design temperature	°C	22,96
Earth temperature amplitude	°C	14,35
Frost days at site	day	37,00
Month	Air temperature	Relative humidity	Daily solar radiation-horizontal	Atmospheric pressure	Wind speed	Earth temperature	Heating degree-days	Cooling degree-days	Average measured radiation
	°C	%	kWh/m²/day	kPa	m/s	°C	°C-d	°C-d	kWh/m²/day
January	4,2	83,90	0,77	100,8	6,3	3,1	426	1	0,71
February	4,3	80,20	1,39	101,0	5,8	3,6	380	1	1,28
March	6,4	76,80	2,34	100,9	6,0	6,2	353	4	2,18
April	8,6	69,80	3,59	100,7	5,1	9,1	279	21	3,55
May	12,7	64,00	4,57	100,9	4,7	13,8	168	92	4,11
June	16,1	60,80	4,84	100,9	4,4	17,7	75	177	4,86
July	18,6	60,20	4,80	100,9	4,4	20,4	25	261	4,77
August	18,6	61,20	4,23	100,9	4,3	20,3	26	264	4,23
September	15,5	66,30	2,86	100,9	5,0	16,5	83	164	2,85
October	11,7	74,10	1,73	100,7	5,5	11,5	191	73	1,57
November	7,3	83,20	0,96	100,7	5,9	6,4	318	11	0,80
December	4,9	85,00	0,60	100,8	6,1	3,8	404	3	0,60
Annual
	10,7	72,10	2,72	100,8	5,3	11,0	2728	1072
Measured at (m)					10,0	0,0