Interesting weather day today, with no warming forecast in the daylight hours. The 7am temperature was 27, and the hourly forecasts indicate a monotonically declining temperature until 5am tomorrow, when the temperature is forecast to be 13. I haven't checked over night data, but I suspect there has also been a monotonic decline for the last 12 hours or so, from yesterday's high of around 39. If I'm right and the forecast is right, that suggests we will have eventually have seen declining temperatures for about 36 hours straight.
(CdM) Er, where are you? I presume Melbourne or thereabouts. That must be very unusual given that it's summer and the sun tends to come out and ruin the "monotony". In the winter, at least here, the temperature can be very steady, day and night, if it's cloudy. In February 1985 there was a very nearly monotonic decline for 90 hours from 9.8 to -5.7 with just a couple of short spells when it went up 0.1 to 0.2 deg. The wind was ENE throughout and there was cloud, then rain, then sleet then snow.
Lots of wonderful weather rushing into Zuid Holland from the North Sea today - hail and snow showers with sun. I have no idea how cold it is out there - have barely moved 30m from my desk all day.