By and large, readers' response to our use of sliders for map and image comparisons is positive. But I will readily acknowledge that "by and large" does not mean 'everyone.' NCEI provides these maps in "small multiple" format on their own web page, which allows you to see all the maps at one time.
https://www.ncdc.noaa.gov/temp-and-precip/us-trends/

Folks who aren;t slider fans might appreciate that approach more. 

(Interestingly, I myself find the sliders less interpretable than a toggle/or tabbed approach, but given how widely popular they are among most of our readers, I chalked that up to my own idiosyncrasies.)