Abstract: A temperature-measuring assembly indicates temperatures in a cold space subject to relatively rapid changes in air temperature from time-to-time. The assembly includes an elongate, tubular container having an open end. A cap with an opening therein is located on the open end of the container. A thermometer with a temperature-sensing stem extends through the opening and through a substantial distance of the container. The thermometer has a temperature indicator on the stem outside the container. An antifreeze liquid substantially fills the container, surrounding the stem. The temperature of this liquid is sensed by the stem and indicated on the temperature indicator outside the container. The liquid changes temperature much more slowly than changes in the air temperature in the cold space.