The skies dumped three weeks worth of rain on Hamilton overnight Sunday.

From 8 p.m. Sunday to 8 a.m. Monday, Hamilton got 73 millimetres of rain. The normal for rainfall in July is 100 millimetres, said Dave Phillips, Environment Canada senior climatologist.

“About seventy five per cent of your monthly total, you got yesterday,” Phillips said.

May, June and July have been a little wetter than usual in Hamilton, Phillips said. The area has seen 294 millimetres in that time, and it would normally see 259 millimetres.

It’s also been a cooler season than usual, Phillips said, with only one day this year over 30 C. Last year, there were 10.

Phillips expects August to be the warmest month of the season.

“When you come right down to it, summer will come out to be close to normal,” he said. “But it’s not been beer-drinking weather.”

Forecasters are calling for more rain this week. On Tuesday, there's a 60-per cent chance of rain late in the afternoon and a risk of a thunderstorm in the evening. The high will be 21 C.

On Wednesday, there's a 40-per cent chance of rain with a high of 21 C. Thursday has a 30-per cent chance of rain and a high of 22 C. Friday has a 30-per cent chance of rain and a high of 27 C.