2020 was a warm and dry year. Every month had temperatures that were well above normal, especially in May, September and October, which were very warm.
The total precipitation for 2020 was 7.83", which is 2.51" below normal. Only March and April had rainfall that was significantly above normal. In fact, almost 75% of the year's total rainfall came in these two months. I've posted the monthly rain totals across San Diego County at the bottom of this post.
|Average Temperature||Departure From Normal||Total Rainfall||Departure From Normal|
Here are the monthly rain totals across San Diego County.