Virginia Climatology [Climate - Weather - Soils ]
Individual Stations
Graphs of x-year mean temperature minimum, maximum, and mean. Where x is
the maximum number of years of available data from NCDC-CDO. This version is not
normalized for a specific period of time. For example, most climate summaries
use a normalized period of time such as 1971-2000, to calculate statistics. This
is important since different periods of observation for stations leads to a
distorted comparisons among station. A normalized climatology is desireable for
many types of analysis. In all of the spatial data sets presented on this
website, a normalized database was used (1971-2000). These graphs of individual
station climatologies are intended to maximize the number of observations and do
not represent a 30-year climatology.
Maps were produced for mean annual growing degree-days (base 50) and mean frost free period in Virginia using PRISM climate data (1971-2000).
Click on the images below to see a full size version

PET and PET-P
These observations are normalized for the period of 1971-2001 and based
on the PRISM spatial climate grids and the Thornthwaite method for calculating
evapotranspiration.
Last updated February 12, 2004
All content by Peter Sforza
Dept. of Plant Pathology, Physiology, and Weed Science
Virginia Tech