@Ionus,
If I were you, ionus, (thank the gods I'm not), I would go back and reread your post of June 5, 11:15pm, #5,967,445) in which you wonder why someone is talking about psychrometers which measure moisture when we're talking about temperature, to which Farmerman replies truthfully that they are preferctly capable of measuring temperature too, rather than just moisture, as you apparently think. Which makes Walter's post relevant, farmerman right, and your repeated castigationl of him bullshit. If you thinbk he's a Gomer, you're a goober. Your whole argument is bullshit.. Just drop the point now
You've had so many misguided posts lately, it's hard to know where to start. You might look at the history of average temperaturek, for one. Takjing the min and max for a day and averaging them to get an average temp, is in fact perfectly a correect procedure. That fits exactly whjat an average of two points is, and that's the way it has been defined for more than a century, and the scientists of that century were perfectly willing to accept it. In a pre=computer time, which things were until just about the start of this century, it was easily calculable, even b y hand, comparable with daily averages from other weather stations/cities, and easily reportable, and yielded manageable data sets. It also does in fact give a good picture of what's happening over time--if things get colder, it'll go down. If they get warmer, it'll go up. They generally reported min and max temps as well as averages too, somewhow you neglect that. And when they calculated ave. temp for a location, they calculated it over a long period, often ten years, which smooths out the variability from one hot day, or one cold day when a typhoon blew through (which negates your recent objection). The people who compiled these statistics (and they were doing them a century before anyone knew GW existed) were not the unsophisticated baboons youu seem to think them. They were scientists, and statisticians, and they thought about the problems involved, more than you have, apparently.
What did they use the temps for ? Same things we do, obviously. What kind of temperature are you likely to find in your city or another one if you v9isit, when can you put your down parka in the closet, when is it safe to plant something without a frost likely to kill it--that's a big one with farmers (and incidentally a couple years ago the USDA moved all agricultural growing zones one zone northward, necessitated since their last growing zone map in the 60s, because GW had changed what would grow where, and they're hard-headed and VERY practical people, because literally billions of dollars ride on their decision. They looked at the temps and made the decision. THAT's one way temps are used used, and it's in line with GW)(and in line with reality too).