In this paper, line-of-sight (LOS) and non-line-of-sight (NLOS) models of the small-area average received power are presented for microcellular radio links. These computationally efficient models consider the propagation loss incurred by path loss and shadow fading through urban street canyons. The models are validated with microcellular measurements recorded at 850 and 1900 MHz in San Francisco. Comparisons are also performed with the Cost-231-Walfisch-Ikegami model and show the importance of including urban canyon contributions in microcellular propagation prediction.