INDIANAPOLIS - By late July, the temperature in Indianapolis is regularly hitting 90 degrees or more, but not this year.
Through the first 17 days of July, Indianapolis temperatures for the month were the third-coldest since records began in 1850.
A remarkably cool air mass in the area last week contributed greatly to that, but it had been cooler than normal before that, too.
The National Weather Service in Indianapolis said that 18 of the first 20 days of July had high temperatures that were below average in Indianapolis.
Indianapolis' average temperature July 1-20 was just 70.3 degrees, nearly 6 degrees below average.
Typically at this time of year, the high temperature is 85, but Indianapolis has been well short of that most of the month, only hitting or exceeding that mark twice.
While temperatures Tuesday could hit 90 degrees for the first time this season, it won't last.
"The cold front that slides over our area bringing showers and storms will also bring much cooler air to the forecast as we end the week," said StormTeam 6 meteorologist Ashley Brown.
Why is it cooler this summer?
The jet stream, which normally stays well north of central Indiana this time of year, has been tracking a lot further south than usual.
That allows cooler air normally confined to Canada to spill down into the region. Other cities in the Great Lakes have also had below-normal temperatures so far this summer.
While it's likely there will be bursts of heat during the remainder of the summer, the overall pattern appears to be trending toward cooler-than-normal temperatures the rest of the season.
It's possible we'll even be breaking out the sweatshirts a little early this year.
Sunshine, above normal temps for Wednesday
In the words of my friend Mister Rogers, expect "a beautiful day in the neighborhood."
Kevin Gregory's Indiana winter outlook
Fall just officially arrived. Sunshine is dominating. Mild temperatures rule. However, thoughts of this winter might be starting to cloud…
Series of fireballs light up Eastern US sky
A series of fireballs lit up the night sky across the eastern U.S. Tuesday night and Wednesday morning just hours apart.
Did you know? Nature's warnings of harsh winter
Outdated folklore or true predictors? Nature is said to provide clues to the approaching Winter Season.
Heavy rainfall prompts flooding in central Ind.
Flash flood warnings were issued for parts of central Indiana on Wednesday evening as a strong storm system moved through the area.
Tornado safety tips
Here is what you should do if a tornado approaches your home.