Magnetic field measurements made on board the Apollo 15 and 16 subsatellites in low-altitude lunar orbit are used to study the occurrences of compressions of the magnetic field over the terminator regions when the moon is in the solar wind. These compressional disturbances occur at or just in front of the terminator, but only when specific selenographic regions appear at the lunar limb. The occurrence rate, strength, and position of the compression relative to the limb are different for each source region. Where overlap of limb compression occurrence statistics and lunar magnetic field maps exist, the limb compression occurrence rates have a high degree of correlation with the magnetic field strength. Thus the most probable cause of limb compressions is the deflection of the solar wind by the lunar surface magnetic field as the solar wind flows past the lunar terminators.