Whomever writes weather reviews must live in the tropics as they call winters cold in such places as Sacramento, CA and San Luis Obispo, CA. Winters with no/very infrequent snow and little to no frost are not cold in winter. Salt Lake City and Chicago are cold in winter.
I care about the weather because I play golf. Other weather sites are riddled with advertisements. Weather Spark, for now, has no ads and a nice user interface. I approve.
I was looking for a site where I could track average weather for cities on specific dates. First time on, eureka!