The response of the mid-latitude atmosphere to Forbush decreases in galactic cosmic rays is analyzed. We use the results of long-term observations of cosmic ray variations and changes in atmospheric parameters at seven mid-latitude cosmic ray stations for the period from 1966 to 2024. During Forbush decreases (at the decline and minimum of intensity), an increase in atmospheric pressure is observed at all mid-latitude cosmic ray stations. When the cosmic ray intensity is restored after a Forbush decrease, the pressure decreases. The duration of this atmospheric response coincides with the duration of the Forbush decrease. The effect is more pronounced in the cold season, as well as for cosmic ray stations with small geomagnetic cutoff rigidity values. Variations in mean mass and surface temperatures during a Forbush decrease are observed at all cosmic ray stations and differ significantly for the cold and warm seasons. The obtained results suggest that changes in cloudiness and atmospheric transparency caused by changes in the ionization rate during Forbush decreases are a possible cause of the observed effects.
