It never gets above 26C here. There are plenty of other cities like this (London just had a record heatwave .. of 29C; seriously that's too hot for them. People were passing out in the toobs. Wellington, another coastal city, has people bitching when it gets up to 27C as too hot), but the difference is they do get warm .. for an extended period of time. From May through August (opposite in Wellington cause hemispheres), you know you can put your jacket away. You don't need it. At worst it's gonna be a little refrigerator like if you stay out too late.
In Seattle, it could be mid-June and you might need that jacket...at noon, and then the next day you'll be burning up.
I miss seasons.
"On average London will see 31 days above 25 °C each year, and 4.2 days above 30.0 °C every year."
(I've lived in Seattle over 10 years.)
Edit: to the response below, this was back in 98 or 99, something like that. I've looked up the historical weather, and it must have been that it felt like 70's to me, coming from Chicago (so it was probably more like 50's). I just remember not needing a jacket for most of the time I was there, and it "feeling good" when the sun came out.
Source: 20 year Seattle resident who loves it anyway.
http://weather-warehouse.com/WeatherHistory/PastWeatherData_...
I lived in Bellevue for about 21 years, so I've got a bit more perspective.
It's not really that rainy, but it's grey 9 months out of the year for sure.
I have to disagree: it depends on how you define "great". If you think Seattle in the winter is bad, try spending a winter in North Dakota or Minnesota. Or even the northeast, such as upstate NY.
I'll take dreary over -40 any day.