Generated Hourly Weather Data


Because there are numerous other simulation programs available, many of which can read ASCII weather files, the Solar Laboratory has generated hourly weather data for many locations around the world. Using the Type54 weather generator built into TRNSYS, we have taken many of the locations for which we know monthly average conditions and used them to generate hourly data. The files are saved in TRNSYS TMY format. Because there are so many files, data for proximate locations are compressed together provided as self extracting archives. Download the file of interest and double click to extract the data.

Africa, Alberta, Asia, Bc,Caribbean, Europe, Eastern United States, Pacific, Quebec, South America, Western United States

The columns in the files correspond to the following data:

TABLE I: MODIFIED TRNSYS TMY DATA FIELDS (FIELDS PRESENT IN TRNSYS TMY FILE)

TRNSYS TMY FIELD NUMBER

FIELD DESCRIPTION

1 Month of the Year
2 Hour of the Month
3 Direct normal solar radiation (integrated over pervious hour) kJ/m2
4 Global solar radiation on horizontal (integrated over previous hour) kJ/m2 (1)
5 Dry Bulb Temperature (degrees *10, C)
6 Humidity Ratio (kg H2O/kg air)*104
7 Wind velocity (m/s)
8 Wind direction (degrees *10) (2)
Notes:
(1) Note that this is not horizontal surface beam radiation.
(2) Wind direction expressed as 0 for wind from north, 9 for east, 18 for south, etc.