best weather for racing??

i know the air should be cool, like 68 to 73 or so. but what about the barrometric pressure, dew point and the humidity?? here inks its useually abouot 30% humidity and the pressure is around 30-40. so what is the ideal conditions for the drags??

Lower temperature, lower humidity, higher barometric pressure. Something like 55 degrees, 20% humidity, 31+ mercury would be great.

Bill

Plus a warm track but overcast. Sun shinning down on a track makes it slippery.

55* might be a little too cool. More mid 60's to low 70's. If it's in the 50's then the track will probably be too cold.

The lower the humidity the better. Dew point is a better way of telling how much water is in the air. 50% humidity at 60* has less moisture in the air than 50% humidity at 80*. The humidity is the same but the due point will be much higher in the hotter temperatures.

The highest barometric pressure you can race at. Pressure drops with altitude. Weather forecasts give barometric pressure readings corrected to sea level so a high altitude track is actually lower in pressure just with the increase in altitude.

Best conditions:
Low 70's
Very high barometric pressure 31+ or 103Kpa+
20% humidity at low 70's temp.
Sea level track
Warm track and overcast.
Lots of VHT on the track

Good luck finding the perfect conditions. Some racers will race for years before getting a perfect day.