The forecast indicates that the town Balden will have substantial rainfall in March. Based on the forecast, there will be 20 mm of rainfall on every day that is a prime number. The exceptions to this rule are the 23rd and 29th of March, which will have 35 mm and 45 mm of rainfall respectively. In addition, the forecast predicts that from the 25th to the 28th, a total of 270 mm of rainfall will accumulate over these four days. No rain will occur on the remaining days.

(Note: 1 is not a prime number)