Data from the Beaufort Sea are used to quantify some of the seasonal characteristics of under‐ice ambient noise. Noise at 10, 32, and 1000 Hz was studied and seasonal space and time scales were calculated. An interesting result is that summer 10‐Hz noise apparently can often be contaminated by cable strum. The summer period is also the only time during which 1000‐Hz noise is almost totally a product of ice motion. Within the central Beaufort Sea, lower frequency noise tends to havee‐folding space scales of the order of 1000 km. This is true for 1000‐Hz noise only during summer, with space scales for the rest of the year being ∼300 km. The time scale analysis also shows this trend. During summer, all frequencies havee‐folding time scales of the order of 10–30 h. During fall and winter, the time scales for lower frequencies increase (up to 72 h or longer), but the 1000‐Hz time scales drop to as low as 3 h.