The average last frost date for Albany is May 2nd and later for the surrounding hills.   There is no frost in the forecast right now either.  Planting now would be a bit of a gamble so be prepared to cover up.  Tomatoes, pepper eggplant and other “tropical” veggies don’t like lows below 50° so they want to go in the week after Mother’s Day or even later in May depending on what the forecast looks like then.  I live in the hills at about 750′ elevation so mine will go in the week before Memorial Day.