Finally, a stray thunderstorm rained on our garden. The wind whipped the trees alarmingly and then the rain pelted down for 15 to 20 minutes. It was only about a quarter of an inch, but since we've barely had an inch over 2 1/2 months (our 'normal' is 4 inches/month), this is significant.
After the rain, the light was wonderful, the plants perked up, and the clouds were tinged with color.