days with rainfall or Days with Rainfall

Hi teachers,

Please see the sentence below. Shall I capitalize "days with rainfall" or not? And why. Thanks.

The total number of days with rainfall in the 2006 summer season was 54 days, 30% less than the normal number of days with rainfall in summer (77 days).

No, you should not capitalize those words. There is no reason to: they are ordinary words.

Thanks, rewboss!