Need advice regarding soaker hose usage

[Fert1]

After practically no rainfall for the last 3 weeks, I finally broke down and purchased a soaker hose. I've never used one before. The last 3 years, we've had record rainfall in the summers and I didn't need to water my garden. In fact, there was way too much water, and disease due to all the water.

This year, it rained every day for 3 weeks, then suddenly stopped and hasn't rained since, other than a 5 minute sprinkle a couple of times. Now that I have the soaker hose, I'm wondering how often to use it. We turned it on and let it run for around 6 hours last night. It's been getting into the 90's every day for the past week or so. It's supposed to reach 96 or so today. At those kinds of temperatures, how often do I need to water my garden roughly?

I also have a few melon and pepper plants. My tomato plants are about 2 feet high now, and can stand a little dryness, but my pepper plants are tiny, and they seem to die if not watered daily. Can anyone give me some good advice?