Leaving Nor Cal in Early March

In 15 we crossed the border May 1st at Sweet Grass MT. Spent 1st night at Fort McLeod, bad head winds. Moved on up to Banff for 3 nights great sunny days then headed for the Icefield anyway. Got to Lake Louise and the weather turned rain, sleet, snow couldn't see anything but the temperature stayed above 30 and the road was only wet. Drove on to Hinton AB for an overnight. Stayed 2 after overnight snow 3-4 inches wet slushy snow. Advised it would be gone in the morning. Next day drove to Grand Prairie on 40 the muddist highway ever, with all the oil patch work trucks flinging mud as they pulled onto it.
The rest of the trip was uneventful except for the scenery and wildlife.