ASK TOM WHY: The lists of Chicago's record daily high and low temperatures always show only one date for each record. Why aren't ties included?

Dear Tom,

The lists of Chicago’s record daily high and low temperatures always show only one date for each record. Why aren’t ties included?

 

Stanton Reed

 
Dear Stanton,

The National Weather Service’s National Climatic Data Center in Asheville, N.C., archives the country’s weather and climatic data, including daily temperature records. The center’s publications list the most recent occurrences of record temperatures, but, in the case of multiple dates, a “+” sign will appear next to the tied entry indicating that other unlisted dates of occurrence do exist.

Meteorologist Mark Ratzer says the computer system at the Chicago Weather Forecast Office also lists the most recent occurrence of a record temperature. The advantage is that it indicates how recently records have occurred.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s