Cooling load is sensible plus latent, and the mix flips by climate

Cooling = sensible (temperature) + latent (moisture). Dry climates are almost all sensible; humid climates carry a big latent load, so oversizing leaves a house clammy.

Two stacked bars splitting the cooling load into sensible (lowering temperature) and latent (removing moisture). The dry Phoenix bar is almost all sensible with a tiny latent cap and a sensible heat ratio near 0.94; the humid Houston bar carries a large latent portion on top of its sensible part with a ratio near 0.77. An oversized air conditioner short-cycles and never removes the latent load. — Source: ACCA Manual J / Manual S

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Two stacked bars splitting the cooling load into sensible (lowering temperature) and latent (removing moisture). The dry Phoenix bar is almost all sensible with a tiny latent cap and a sensible heat ratio near 0.94; the humid Houston bar carries a large latent portion on top of its sensible part with a ratio near 0.77. An oversized air conditioner short-cycles and never removes the latent load.

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