How many degrees celcius was it during the 2003 Community Shield final between Manchester United and Arsenal?

I recall it being 38 and Sky showing a screenshot of the thermometer showing it to be 38 degrees as well in the ground of the Millenium Stadium, Cardiff. Am I correct? If not does anyone know the actual temperature it was that day?

Tagged as: 2003, Arsenal, between, Celcius, Community, Degrees, During, final, Manchester, many, SHIELD, United