Cold and showery again. Shed 8.1, 7.3, 2.1. Tunnel 17, 10, 1.5 @11:45
Interestingly it seems to get colder in the tunnel at night than up at the shed - possibly a height effect as the tunnel doors are quite leaky and the shed thermometer is 2m above ground sheltered under the protruding bit of roof, whereas tunnel one is 1m on a post and the doors are leaky so cold air probably flows through. I wonder if it would have been better to orientate the tunnel E-W, but that would be less good for morning and evening heat capture.
Heavy prolonged showers, so raked soil improver organic compost into tunnel beds and watered. Put weed mat around two more blueberries and weighted with gravel which seems better.