[…] But if the month and day be on the right hand, as July 26, then they South at 6 h. 14 min. in the Morning, or Beforenoon, contrary to the ſignification of the Letters, A. for afternoon, and B. for beforenoon; and ſo of the reſt.
Source: wiktionary
During the course of investigation the weather parameters viz., minimum temperature, maximum temperature, beforenoon relative humidity, afternoon relative humidity, rainfall and number of rainy days were varied from 11.6 °C to 22.8 °C, 27.9 °C to 31.7 °C, 73 to 100 per cent, 29 to 82 per cent, 0.00 to 184.0 mm and 0 to 4 days, respectively.
Source: wiktionary