def temperatures_data(estacions, temp_data):
    lsol = []
    for data, temperatures in temp_data:
        itmin = temperatura_minima(temperatures)
        lsol.append([data, temperatures[itmin][1], estacions[itmin]])
    return lsol

def temperatura_minima(temperatures):
    mi = 100.0
    for i, tt in enumerate(temperatures):
        tm, tmi, tma = tt
        if tmi < mi:
            mi, imi = tmi, i
    return imi