The closest thing we have for specific years is this: https://weatherspark.com/h/y/557/2020/Historical-Weather-during-2020-in-San-Francisco-California-United-St

The closest thing we have for specific years is this: https://weatherspark.com/h/y/557/2020/Historical-Weather-during-2020-in-San-Francisco-California-United-States#Figures-ColorTemperature https://weatherspark.com/h/y/557/2020/Historical-Weather-dur... It’s not available on the world map, but you can drill down to any year in any location we have data for.