Again we visit Dave's favorite place to get data. Dave thought this site showed that global warming was real. A real look at the data shows how unreal it is.
Today we look at Clinton Iowa and Morrison Illinois, two cities separated by 14 miles and a state line. The first picture shows the daily difference in temperature.
In 1975 the Clinton station moved 1 mile. Note that the noise introduced by the movement of the station by 1 mile is far greater than 100 years worth of global warming. See the green line inside the red around 1970. That green line represents 100 years of warming. The error in the data is 20x greater than 100 years of warming. And we are supposed to believe Global Warming is measurable! We can't even measure a similar temperature 14 miles away
Let us look a little closer at the data. I prepared a histogram of temperature differences for these two towns just 14 miles apart and within 100 feet of the same elevation. How often are the daily temperatures divergent?
You can see that half of the days have greater than a 2 deg F difference in temperature and 10% of the days have greater than 6 degrees. Let's put this in perspective
A suggested set of criteria based on the horizontal temperature gradient has been devised. A weak front is one where the temperature gradient is less than 10[deg]F per 100 miles; a moderate front is where the temperature gradient is 10 [deg]F to 20 [deg]F per 100 miles; and a strong front is where the gradient is over 20 deg]F per 100 miles.
A strong front is when the temperature gradient is .2 deg F per mile, yet the temperature record says that on 10% of the days the temperature gradient between these two towns is more than twice that due to a strong cold front! Is it conceivable that these two towns experience super strong cold fronts that lie BETWEEN THE TWO TOWNS 10% of the time? That certainly seems ridiculous to believe. It is easier to believe that the thermometers are not working correctly, and if they don't, then neither does the silly global average temperature which is based upon crap data like this.
Now let's take a closer look at the 365-day running average. That is the third picture.
The interesting thing about this is that in general the temperature difference would be one way for years and then it would reverse for years. Given all the examples of this I am finding when I examine the temperature records for closely spaced towns, one would think that there are cold fronts almost constantly between closely spaced towns all over the US. Or could it be that the temperature record is just so bad that no conclusions can be made from it?
Does anyone really believe that a 1-3 deg warm front sat between Morrison and Clinton for the past 43 years? I for one am not that gullible.