Post #250600

The first image shows all of the observed Januaries, plotted separately. What's immediately obvious is that January always has sunny days. This past month wasn't unusually sunny. And, the sunny days are often grouped in clusters, due to the cause being lingering high-pressure systems. The final pair of charts is here to illustrate the difference between a cloudy day and a sunny one in January. The light shaded region shows the insolation we expect. The dark is what was observed. The sunny day chart shows incoming energy was blocked in the morning and late afternoon. This is due a trees that shade the sensor at those times. Trees that were much smaller when the site was selected. #UVic #Saanich #VictoriaBC 6/6