1/4" a day seems absolutely normal this time of year. I lose 3/4" a day with highs near 100 and 10% humidity. Warm day then 60 at night, it transfers via "fog" at night back into the cool air. If the wind blows with it here, (normally does) we can see over an inch drop in 24 hrs.
I'd be extremely happy with 1/4" a day this time of year!