Subjective Feelings Or Pathetic Fallacy On Roland

Poul Anderson, New America, "The Queen of Air and Darkness."

Sherrinford tells Barbro:

some archetypes are not individuals;
these include the Anima, the Shadow and the Outworld;
the Outworld involves magic, glamour, enchantment, half-human beings like Ariel and Caliban and "'...dwellers in dusk and moonlight...'" (p. 228);
the Rolandic natives knew what sights to show, what illusions to spin and what songs and legends to initiate;
also, men might have re-created the Outworld as they sensed that they were "'...living on the edge of the world...'" (ibid.)

When Sherrinford finishes speaking:

"Shadows stole across the room. It grew cooler and the traffic noises dwindled." (ibid.)

Does Barbro subjectively feel darker, cooler and quieter or does the approach of evening explain the lengthening shadows, the decreasing temperature and the diminishing background noises? If the latter, then this passage expresses a Pathetic Fallacy, objective nature seeming to match subjective feelings.