Lymph in the lymph vessels eventually reaches a lymph node -- there are about 100 nodes scattered throughout the body. Lymph nodes filter the lymph and also contain large numbers of white blood cells (a big part of the immune system), which remove foreign cells and debris from the lymph.When you get certain infections, the lymph nodes swell with billions of white blood cells working to clear the foreign cells causing the infection.ymph nodes filter the lymph and also contain large numbers of white blood cells (a big part of the immune system), which remove foreign cells and debris from the lymph. When you get certain infections, the lymph nodes swell with billions of white blood cells working to clear the foreign cells causing the infection.
Yellowstone: Annual Weather Averages. July is the hottest month in Yellowstone with an average temperature of 24Â°C (75Â°F) and the coldest is January at -2Â°C (28Â°F) .ellowstone: Annual Weather Averages. July is the hottest month in Yellowstone with an average temperature of 24Â°C (75Â°F) and the coldest is January at -2Â°C (28Â°F) .
Location. This report describes the typical weather at the Yellowstone Lake (Yellowstone National Park, Wyoming, United States) weather station over the course of an average July.It is based on the historical records from 2001 to 2012. Earlier records are either unavailable or unreliable.ocation. This report describes the typical weather at the Yellowstone Lake (Yellowstone National Park, Wyoming, United States) weather station over the course of an average July.