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Dew point / humidity (Read 323 times)

Michael Rohlf


    I'd like a box when dew point can be entered, right by the temperature box. Or maybe two more boxes: one for dew point and one for humidity. In the summer I always note this in my comments, but it'd be nice to have that information available for charts.


    Bad Ass

      This is a good idea.  I don't look at humidity because I think dewpoint is the best measure of both.  Having it more accessible would be great.

      Damaris, Marathon Maniac, Ultra Runner

      Blog

      "The most powerful weapon on earth is the human soul on fire."

        Although I believe this might already be on Eric's 'to-do' list, I'll add my +1 to this!!  In southern Ontario, we have high humidex values in the summer (tomorrow is 32 with a feels-like of 40) and in the winter very low windchill ones.  If anyone thinks windchill doesn't make a difference, they obviously do not live near lakes!!!

        'No matter how slow you go, you're still lapping everyone on the couch'

         

        "Running is a big question mark that's there each and every day. It asks you, 'Are you going to be a wimp or are you going to be strong today?'"  - Peter Maher

         

        "Running long and hard is an ideal antidepressant, since it's hard to run and feel sorry for yourself at the same time. Also, there are those hours of clearheadedness that follow a long run."  -Monte Davis

        Michael Rohlf


          Good point about wind chill. Perhaps it might be easiest to add a single box next to temperature with some way to indicate whether the figure entered refers to dew point or wind chill.

          RunninGeek


            I would love having a dew point box. I add that to the notes on all my runs.

              Sometimes Dew Point means something to me and sometimes it doesn't.

               

              Right now it is 90 degrees out with 20% humidity.  That's a dew point of 45.

               

              Somehow that feels a little different than 60 degrees and 50% humidity.  That's also a dew point of 45.

               

              I've actually seen it when the humidity dips below 10% where it's 90+ outside and the dew point is in the 30's.

              Age: 46 Weight: 208 Height: 6'2" (Goal weight 195)

              Current PR's:  Mara 3:48:09; HM 1:43:26; 10K 44:51; 5K 21:27

                FYI:

                 

                 

                (Yesterday at the time of my tempo it was 90 degrees with a dewpoint of 70. It was brutal. By contrast, the week before was 85 degrees with a dewpoint of only 60, and I felt great.)

                  Sometimes Dew Point means something to me and sometimes it doesn't.

                   

                  Right now it is 90 degrees out with 20% humidity.  That's a dew point of 45.

                   

                  Somehow that feels a little different than 60 degrees and 50% humidity.  That's also a dew point of 45.

                   

                  I've actually seen it when the humidity dips below 10% where it's 90+ outside and the dew point is in the 30's.

                  npaden, dew point is not going to come into play much where you live. I spent a good portion of my life in Lubbock. As you know it gets hot there. I always made it a point to go out on the first 110° day to run. It was hot for sure, but it wasn't  miserable feeling. Now I live in the midwest and run in mid-day and afternoon temperatures of 88° to sometimes 100° with dew points 68-76°. I assure you I'd rather be running in Lubbock. Enjoy the dry heat.

                   

                  But like you, dew points feel different to me depending on the actual temperature/humidity combination. High dew points in the morning are not all that bad feeling. High dew points in the afternoon feel miserable, at least to me.

                    In extreme cases the dew point is not a good indicator.

                     

                    Yesterday the temperature topped out at 107 here in Lubbock.  At 5 pm it was sunny and 106 with 8% humidity.  The dew point was 32.  The heat index was 100.

                     

                     

                    Later that evening the temperature dropped to 92 and the humidity climbed to 21%.  That caused the dew point to climb to 45.  The heat index was 88.  That evening the dew point was 13 degrees higher but the heat index was 12 degrees lower.  I would much rather have run outside later that evening even though the dew point was much higher.

                     

                    I think the heat index is a better indicator of comfort level.  I think that's why they came up with it.

                    Age: 46 Weight: 208 Height: 6'2" (Goal weight 195)

                    Current PR's:  Mara 3:48:09; HM 1:43:26; 10K 44:51; 5K 21:27

                      I don't have much to offer besides saying hi. I grew up in Lubbock and now live in south texas (corpus christi area) running in Lubbock is much more enjoyable with the lack of humidity.

                       

                      Find some shade in that dry heat and it isn't bad. there is no hiding from this soupy south texas humid BS.

                      ”Failing to prepare is preparing to fail.”

                      “Whether you think you can, or you think you can't--you're right.”

                       

                      Tomas


                      Bad Ass

                        I think dewpoint is a better indicator of discomfort for runners.  Our heat index never goes above 105F yet our dewpoint does not go below 70DP most of the year and my runs are usually very uncomfortable, even when the heat index is in the mid 80s.  I prefer to run in the late afternoons when the heat index is 97F than in the mornings when it's 84F but the dewpoint is close to 80.  My lungs run better in 97F with a lower DP.

                        Damaris, Marathon Maniac, Ultra Runner

                        Blog

                        "The most powerful weapon on earth is the human soul on fire."

                          Or our workout entry could have a checkbox for Humid, meaning that we were feeling the humidity on this run.

                          Well at least someone here is making relevance to the subject.

                            Or our workout entry could have a checkbox for Humid, meaning that we were feeling the humidity on this run.

                             

                            Hey wait, we already have that! Wink

                            Age: 46 Weight: 208 Height: 6'2" (Goal weight 195)

                            Current PR's:  Mara 3:48:09; HM 1:43:26; 10K 44:51; 5K 21:27

                              I bought my nephew an elephant for his room. He said, "Thanks". I said, "Don't mention it".

                                Here's a cool metric I came up with a while back. I call it the Misery Index: Temp + Dew Point = Misery Index.

                                 

                                You will start to feel affects above 130. 140-149 and you finish your run like you swam in a pool. 150-159. It will feel like death is running behind you,  blowing his stank humid breath on you. 160+.... don't even bother...

                                 

                                So...106 + 32 = 138 and 92 + 45 = 137. Basically equal. But one does not have the solar radiation, while the other does. That is why the nighttime run feels better than the midday run....

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