According to Forbes.com:
Most lightning: Orlando, FL
Rainiest city: Hilo, HI (277 days of rain)
Driest city: Yuma, AZ (17 days of rain)
Snowiest city: Blue Canyon, CA (240 inches of snow)
Most humid city: Quillayute, WA (average humidity, 85%)
Windiest City: Milton, MA (average wind speed, 15.4 mph)
Coldest City: International Falls, MN (average daily temp, year round: 36.4°F)
Hottest City: Key West, FL (average daily temp, year round: 77.7°F)
Most Variation: Springfield, MO (biggest variations in temperature, precipitation, wind)
Least variation: San Francisco Bay area (least variation in temperature, precipitation, wind)
Most lightning: Orlando, FL
Rainiest city: Hilo, HI (277 days of rain)
Driest city: Yuma, AZ (17 days of rain)
Snowiest city: Blue Canyon, CA (240 inches of snow)
Most humid city: Quillayute, WA (average humidity, 85%)
Windiest City: Milton, MA (average wind speed, 15.4 mph)
Coldest City: International Falls, MN (average daily temp, year round: 36.4°F)
Hottest City: Key West, FL (average daily temp, year round: 77.7°F)
Most Variation: Springfield, MO (biggest variations in temperature, precipitation, wind)
Least variation: San Francisco Bay area (least variation in temperature, precipitation, wind)