Hi all
Is it necessary to consider monsoon weather conditions for HVAC heating & cooling load calculations?
If yes, what is the wise monsoon weather conditions should i take into consideration?
If hourly data is available, then I'd suggest you use that calculate a 90% or 99.6% or whatever you think appropriate "monsoon season design condition".
If ASHRAE (or other authoritative organization) has published design conditions for your location, then they would already have the monsoon season factored in, so you would not need to do this again.