Calm and Frosty

Calm and Frosty

The very early hours of Saturday morning produced our coldest autumn temperature of the year as the thermometer fell to -2.1°C or 28.2°F. Late on Friday night, the temperature had fallen to below zero as the reading on my weather station shows.
The temperature continued to fall but through the night milder conditions arrived and by morning the temperature was back above zero but not by much.
Temperature, Rainfall and Wind Speed Records 22-28 November 2020
I’ve added the purple wind speed record to the chart above as the high wind speed for Friday was a remarkable 1.0mph. It’s the only time in my 11 years of record keeping that a day in November has had such a low wind speed. November is rather better known for its stormy and windy weather. Other months of the year have recorded such low wind speed but it is an unusual occurrence. 
 
We’d taken Ruby for a walk in Rothwell Park on Friday afternoon and it was a lovely late autumn afternoon.
After a dull morning, the skies cleared and the sun came out. Without any wind, it felt very pleasant. It was that clear sky that produced such a low overnight temperature. I’m guessing that the dahlias at the plot will now definitely be ready for lifting. On the other hand, our parsnips should now be ready to lift after a cold frosty night should, according to gardening folklore, have sweetened them.