The following is from Gary McManus, associate state climatologist with the Oklahoma Climatological Survey:
Here’s some food for thought. If OKC hits 100 today, that will be 2 days in a row (and for the year). That’s actually above average.
NWS data dating back to 1896 indicates the average number of days in June with highs of at least 100 degrees is 0.7. That still
leaves July, August and September to get more 100s (averages of 4.2, 5.0, and 0.7 days, respectively). The average for the
year comes out to 10.6.
So even if we don’t hit 100 today, we’re still ahead of the curve in OKC.
Furthermore, of the top 10 years with the most number of 100 degree days in Oklahoma City, 7 of those 10 had experienced 2 or fewer days with 100 degrees from January 1 to June 26.
For instance, the record for Oklahoma City is still 1980 with 50 days of 100 degrees or more. Through June 26 of that year, they had only experienced 2 days with 100 degrees or more.