Narrative Summary - April 2005

The average temperature for April 2005 was normal, averaging 53.6ºF, 0.1º above normal (53.5ºF). The
warmest April (1994) averaged 58.2ºF; while the coolest (1955) averaged 47.5ºF. The maximum temperature
of 85ºF on April 26 tied the highest temperature for that date which also occurred in 1992. 




Precipitation for April 2005 totaled 0.26 inch, 59% of normal (0.44 inch).  The wettest April (2003) received 

2.23 inches; and the driest (1999 and earlier years) received only a trace.   No snowfall was recorded during 

April 2005, compared to a normal of a trace inch, and a maximum of 1.0 inch in 1982.  Total precipitation for 

2005 (through April) is 1.54 inches, 60% of normal (2.57 inches).



The average wind speed for April 2005 was 7.9 miles per hour (mph), 0.9 mph below normal (8.8 mph).  The 

windiest April on record (1972 and earlier years) averaged 11.1 mph, while the April with the lightest winds 

(2004) averaged 7.2 mph. The peak gust for the month was 43 mph on April 1.  The record wind gust for April 

was 73 mph in 1972. 



The monthly climatological data summaries, as well as other information, are available on the Internet.  

Address:  http://hms.pnl.gov/ 



For additional information contact: 




Ken Burk373-3215


Dana Hoitink372-6414




Note:  The information in this summary pertains specifically to

   the Hanford Meteorology Station (HMS), which is located

   approximately 25 miles northwest of Richland, Washington.  No

   attempt should be made to infer meteorological conditions at other

   locations from these data.