average apr

Feb 01-10, 1999 U.S. Western Regional Climate Center, Dr. 700 mb Height Anomaly for Jan 21-31, 1998 Sea Level Pressure Departure from Average for Mar 11-20, 1999 Sea Level Pressure Departure from Average average apr for Nov 11-20, 1999 700 mb Height Anomaly for Dec 21-31, 1998 700 mb average apr Height Anomaly for Nov 11-20, 1999 Sea Level Pressure Departure from Average for May 1999 700 mb Height Anomaly for Nov-Dec-Jan 1998-99 700 mb Height Anomaly for Mar 21-31, 1999 Sea Level Pressure Departure from Average.