Safety and Temperature, Dew Point, Slower pace post

I realize that I need to post this.... It's very important to think about temperature and pace (as well as dew point, humidity, etc).

Came across a few interesting charts.  First, this one:

This one just demonstrates that pace will likely slow down with temperature, and it should.  However, I think the most important thing to remember is dew point/humidity makes the biggest difference in one's pace.

So I came across this on another running blog (http://maximumperformancerunning.blogspot.com/2013/07/temperature-dew-point.html)

So essentially what you want to do is find out the temperature and dew point and add them together.  This will produce a number that will give you some additional information.

100 or less:   no pace adjustment

101 to 110:   0% to 0.5% pace adjustment

111 to 120:   0.5% to 1.0% pace adjustment

121 to 130:   1.0% to 2.0% pace adjustment

131 to 140:   2.0% to 3.0% pace adjustment

141 to 150:   3.0% to 4.5% pace adjustment

151 to 160:   4.5% to 6.0% pace adjustment

161 to 170:   6.0% to 8.0% pace adjustment

171 to 180:   8.0% to 10.0% pace adjustment

Above 180:   hard running not recommended

What you do with this number is see the chart below:

For myself, I'm going to say 9:30 or 10:00 pace.  On a really humid day, I'm running maybe a minute per mile slower than I would on a typical day.  For example, today was 68 for the dew point and about 67 degrees when I woke up.  Which produces 135.  That is about a 2-3% pace adjustment.  If I was aiming for 10:00min/mile I would actually want to go about 15 seconds per mile slower to account for this.

Important to keep in mind!

End of safety announcement fellow runners.