No your not alone.
Go our S60 in May of last year so through almost 1 year of using the car on the prairies our average consumption is 210 wh/km, which includes preheating in the mornings during the winter. Spring/Summer and Fall range is predicable and we find we can hit ideal range without to much difficulty on longer trips. Winter average is probably closer to 250wh/km with bad days being into the 300+wh/km, a lot of which comes from the car sitting outside and getting cold soaked.
Some of my cold winter day stats
2014-03-06 58 km 14.6 kWh 252 wh/km -17.0 °C work and home
2014-03-05 112 km 30.1 kWh 269 wh/km -20.0 °C work, lunch and home
2014-03-04 58 km 16.8 kWh 290 wh/km -20.0 °C work and home
2014-03-03 58 km 17.5 kWh 302 wh/km -20.0 °C work and home
2014-03-01 123 km 36.6 kWh 298 wh/km -28.0 °C gymnastics, shopping, parents and home
2014-02-28 88 km 27.5 kWh 313 wh/km -23.0 °C work, lunch and home
2014-02-27 62 km 16.7 kWh 269 wh/km -7.0 °C work and home
2014-02-26 58 km 15.4 kWh 266 wh/km -7.0 °C work and home
2014-02-25 59 km 16.1 kWh 273 wh/km -7.0 °C work and home
2014-02-24 58 km 16 kWh 276 wh/km -10.0 °C work and home
2014-02-22 69 km 16.4 kWh 238 wh/km -13.0 °C gymnastics, dog park and shopping
2014-02-21 78 km 22.5 kWh 288 wh/km -9.0 °C work, lunch and home
2014-02-20 75 km 17.8 kWh 237 wh/km -10.0 °C work, airport for 2 days and home
Basically when it is cold during the winter and we are out for the day I do not plan on more than half or ideal range being available for driving. Given we rarely drive more than 120km in a day its not an issue.