EVENTS DATABASE: COLD
Contains occurrences of record cold in the mid-Atlantic region. Uses old database.
# Occurrences: 674
# Events: 257
Event Criteria: Consecutive Days
Occurrence Criteria: For Major Cities: Two consecutive record minima. For COOP sites: Greater than 2 standard deviations from long term mean.
Sources: Daily weather archives for ASOS and COOP sites.
Spatial Averaging Bias: More sites in PA than in other states.
Multiple Datasources: This table contains data from multiple data sources that may have varying selection criteria.
All times listed as 12 Z, since lowest temperature typically occurs during the early morning.
Interface designed by SJG for Pennsylvania State Climate Office; Summer 2005