Mouseover the numbers above to show a list below. Keep in mind that this display shows the number of (usually major) cities that are forecast to be near (by <1°F), tie, or break the record. There are ~390 stations in the CONUS database as of March 2023. Data updated through 12/31/2022.
These graphics use the latest (00Z/06Z/12Z/18Z) National Digital Forecast Database (NDFD) grids and compare to the record database (from ThreadEx). Stations within 1°F of a record are plotted. Please note that minimum temperatures are forecast for the morning hours but the records encompass the entire calendar day; therefore, the low temperature for the day may occur just before midnight and may be lower than the early morning lowest temperature.
Images load about 45 minutes after the cycle (i.e., 12Z cycle data loads around 1245Z). What is Z time?