Years of Coverage
The data contained in the Climatologist's database spans from 1901 to 2008. Years of record vary from station to station.

This site provides monthly results, followed by a yearly total (in bold), and finally by season (listed in yellow). The four seasons are winter (December-February), spring (March-May), summer (June-August), and fall (September-November).

Provisional vs. Final Data
The data through October 2007 are final. Later data are provisional. Provisional data have not been finalized by internal quality control standards, and are subject to revision.

Climate Parameters Offered
There are 12 climate parameters offered on this web site. Additional climate parameters are available, and may be obtained by contacting the State Climatologist Office.

Climate Parameters Explained
The explanations of each climate parameter below have been simplified. For more detailed information, see the State Climatologist Web Site. All measurements are monthly.

  Precipitation - Amount of precipitation recorded, in inches.
  Rain Days - Number of days that rain occurred.
  High Temp - Average high temperature recorded, in degrees Fahrenheit.
  Low Temp - Average low temperature recorded, in degrees Fahrenheit.
  Mean Temp - Average mean temperature recorded, in degrees Fahrenheit.
  Snow - Amount of precipitation recorded as snow, in inches.
  Daily Max Precipitation - Highest amount of precipitation recorded during one day, in inches.
  Heating Degree Days - Determined by a formula. More Information
  Cooling Degree Days - Determined by a formula. More Information
  Days 90 - Number of days that the high temperature was at or above 90 degrees.
  Days 32 - Number of days that the low temperature was at or below 32 degrees.
  Snow Days - Number of days that snow occurred.

Updates
Before data are added to the database, quality and accuracy checks need to be performed. For this reason, the database may not contain our most recent measurements. We will try to keep the database as current as possible, but if you need recent data, please contact the State Climatologist Office.

Reporting Errors
The following values denote errors for a given measurement.

  Precipitation: -9.99
  Rain Days: -99
  High Temp: -99.9
  Low Temp: -99.9
  Mean Temp: -99.9
  Snow: -9.9
  Daily Max Precipitation: -9.99
  Heating Degree Days: -999
  Cooling Degree Days: -999
  Days 90: -99
  Days 32: -99
  Snow Days: -99