Oh easily, DCA is rural by comparison . BSC is literally nothing but concrete and asphalt, basically not a single tree or anything green in that part of the city. Zero logic behind maintaining any kind of observing station there.
I can tell you firsthand temps are artificially inflated by ~10°F if not more. Literally a UHI hellhole within a UHI hellhole.
I doubt it will be followed by even a single year Niña. We are at the beginning of the intradecadal post-solar max eastward extension of the IPWP (EQ flank) & +PMM transition w/ maturing +QBO for upcoming boreal winter. That is not conducive for a recoil to La Niña.
From what I can see this more closely tracks system states such as 1957/58 which remained neutral ENSO during the subsequent winter (and had less Niñas throughout the subsequent intradecadal period).