Climate Central is up to their old tricks again. As usual, they post temperature graphs with the x-axis starting in 1970. Today, their Tweet was about average Fall temperatures in the United States by year since 1970 and how they have been warming over the last 48 years.
— Climate Central (@ClimateCentral) September 8, 2018
Let’s investigate their claim about Fall warming across the United States to see if their claim holds true.
The main question we must ask ourselves is WHY did they start their graphs in 1970? Well, the answer is obvious – they don’t want you to know about the hot past.
According to NOAA‘s ‘Climate At A Glance,’ the average temperature for the U.S. during the meteorological Fall months (September – November), has slightly risen since 1895. More recent autumns are no warmer now, than they were during the 1930s, 1940s, and 1950s. The warmest Fall on record for the United States (assuming NOAA hasn’t adjusted the data) was in 2016, but the autumns of 1963 and 1931 were NOT far behind.
Let’s look into this further. What has the trend been for the average maximum Fall temperatures in the United States each year since 1895? Well, NOAA‘s ‘Climate At A Glance’ shows almost NO trend in Fall maximum temperatures across the United States for the past 123 years. Fall maximum temperatures are no different now than they were during the 1930s, 1940s, and 1950s.
What about the average Fall minimum temperature? Well, once again there is still a slightly upward trend, but the biggest increase in Fall minimum temperatures was during the mid-late 1990s and early 2000s. This can ONLY be attributed to the urban heat island effect! Urbanization has increased dramatically since World War II, and it accelerated during the 1990s and 2000s.
As meteorologist Anthony Watts from the Watts Up With That? blog has discovered; many of these stations are located in urban areas where they are affected by the urban heat island effect, most noticeably at night. Many of these stations are located beside brick buildings, in which during the daytime, the bricks absorb the sun’s energy, and release it at night. The heat being emitted from the brick buildings “juice-up” the overnight temperatures, which is why we have seen an increase in annual, and seasonal minimum temperatures.
(Visit surfacestations.org for more info.)
Many rural stations actually show a cooling trend across the United States. My friend Tony Heller has done an excellent job on building temperature datasets and software to ‘unhide the decline.’ (Read more at realclimatescience.com.)
When we use Tony’s graphs (data is directly from NOAA), we will notice that there has been a steep decline in the number of 90 degree days in September at all USHCN stations.
Let’s go back to NOAA‘s graph. The United States, unlike the rest of the world has fantastic historical climatology data dating back to at least 1895, and a lot of the East Coast locations have daily data dating back to 1880 and even as far back as 1872. NOAA, even though we have called them out numerous times on climate fraud, takes advantage of this and plots graphs with data starting in 1895. There is no rhyme or reason for why Climate
Central Clowns start their graph in 1970. The only explanation I have for why they start in 1970 is so they can show a warming trend, and lie to their followers.
Climate Central‘s graph of autumn temperatures since 1970 IS in fact accurate, BUT the way they go about making it and assessing it, is a completely different story… it is corrupt.
It is important that we educate the younger generation about corrupt climate science so that they are not brainwashed by climate lunatics like Climate Central. The East Coast just got over their week-long heatwave yesterday, but the recent heat was nothing compared to what we saw just three generations ago…
CMB.Contact@noaa.gov. “Climate at a Glance.” National Climatic Data Center, http://www.ncdc.noaa.gov/cag/national/time-series/110/tavg/3/11/1895-2018?base_prd=true&firstbaseyear=1901&lastbaseyear=2000.
CMB.Contact@noaa.gov. “Climate at a Glance.” National Climatic Data Center, http://www.ncdc.noaa.gov/cag/national/time-series/110/tmax/3/11/1895-2018?base_prd=true&firstbaseyear=1901&lastbaseyear=2000.
CMB.Contact@noaa.gov. “Climate at a Glance.” National Climatic Data Center, http://www.ncdc.noaa.gov/cag/national/time-series/110/tmin/3/11/1895-2018?base_prd=true&firstbaseyear=1901&lastbaseyear=2000.
“Fall Warming Trends Across the U.S.” Climate Central, 5 Sept. 2018, http://www.climatecentral.org/gallery/maps/fall-warming-trends-across-the-us.
“Increasing November 3 Temperatures In The US.” The Deplorable Climate Science Blog, realclimatescience.com/2017/11/increasing-november-3-temperatures-in-the-us/.
“Plummeting October Temperatures In the US.” The Deplorable Climate Science Blog, realclimatescience.com/2017/10/plummeting-october-temperatures-in-the-us/.
“Plummeting September Temperatures In The US.” The Deplorable Climate Science Blog, realclimatescience.com/2018/09/plummeting-september-temperatures-in-the-us-3/.
“Urban-Heat-Island (Ikke Eget Foto).” GrowTek Entreprise ApS, growtek.dk/om-growtek/presse/urban-heat-island-ikke-eget-foto/.