DEVELOPER = 500 Calls Per Day / 10 Calls Per Minute
DRIZZLE = 5000 Calls Per Day / 100 Calls Per Minute
SHOWER = 100,000 Calls Per Day / 1000 Calls Per Minute
DOWNPOUR = 1,000,000 Calls Per Day / 10,000 Calls Per Minute
If you exceed one of those limits, you will get an automated message telling you which limit you have gone over, which will be noted in the "Details:". When you go over your limit, a raindrop from your account is applied so that your feed is not turned off. If you repeatedly go over your limit you might consider moving up to the next level of service to get more allotted requests.