spring spring climate spring vernal equinox in spring spring equinox vernal equinox spring climate vernal equinox in spring vernal equinox in spring spring equinox vernal equinox spring season spring spring climate spring equinox spring season spring season spring equinox first day of Spring vernal equinox spring spring season vernal equinox spring season vernal equinox in spring spring spring season spring blooming plants spring equinox first day of Spring spring season spring season spring equinox spring equinox spring season spring season spring season