An electric field mill is used to measure the vertical component of the geoelectric field at Davis station, Antarctica (68.6°S, 78.0°S, geographic coordinates; 74.6°S magnetic latitude). Local influences on the measurements are determined. Approximately a year of data is subjectively examined to determine periods when the fair-weather electric field is expected to be dominant. Using a cumulation of consecutive differences method, small intervals of data are combined to determine winter, spring and autumn diurnal fair-weather electric field curves. A paucity of intervals not locally influenced precludes determination of a summer diurnal curve.The seasonal-diurnal curves each show a peak between 19 UT and 22 UT that is similar in temporal location and relative magnitude to the global, fair-weather, seasonal diurnal curves (see Reiter, 1992, p. 130). A local influence persists between 03 UT and 10 UT and precludes determination of a magnetospheric influence on the geoelectric field for these data.