On August 21, 2017 we conducted a small research project collecting temperatures before,
during and after the eclipse, before the eclipse we had an air temperature of 98 degrees F. During the peak
of the eclipse which here was only about (70%), temperature was down to 86 degrees F, a 12 degree drop.
When the eclipse was completed the temperature was 84 degrees F.
Some notes to add here is that it was partly cloudy during the eclipse and the day started a little humid, during
the peak of the eclipse the air had changed and the humidty had dropped off. I will say that during the eclipse peak there was
a definant change to the human skin as you could feel the difference of the sun being blocked by the moon. The brightness
around here also changed as the trees had a dull/shadowy look to them, this was also reported by other poeple.
Eclipse 2017a Logo

Eclipse Graph Logo


The start of the partial eclipse was at 1322, with peak being at 1422.
The partial eclipse ended at 1557, loking at the graph above we started to collect temperature data at 1000 hrs(10am). Two mercury thermometers were used, one was left in sunlight, the other was left in a shaded area, we also took readings off a paved driveway(blacktop) using an IR digital thermometer (temperature was taken from an area that was in continuous sunlight). Looking at the graph one can see a spike in the blacktop temperature at 1200 (noon), than a fall in temperature after the noon time hour, a smaller drop when the eclipse started.
The in sun light curve shows a spike at about 1100 then starts to fall/level off falling further after the partial eclipse started. The in shade readings had some minor peaks and valleys, but stayed virtually straight through out the day.
At eclipse peak air temperature was 86 degrees F, there was a 6 degree temperature drop in the shade, and the blacktop temperature was at 105 degrees F.
Averge temperatures was 94 degrees F in sun light, 79 degrees F in shade and 113.1 degree F with blacktop. We look forward to the total eclipse here on the east coast in 2024. We will be conducting an experiment for that too.
Stay tune for the next experiment.