The Curious Dreamer’s Dream Dictionary

by Nancy Wagaman
A particular month (May, August, etc.) can represent the actual time frame of a real-life event portrayed in the dream, or it can set a mood or context that you associate with that month or time of year (such as January representing a new beginning or June representing your friend who has a June birthday).

See Time of Year, Dates on a Calendar, Time Passing, Time Frame, Spring (Season), Summer, Winter, Autumn

The Complete Guide to Interpreting Your Dreams

by Stearn Robinson - Tom Corbett
To dream of an open mouth is a straightforward warning that you tend to use yours too much; try to listen more.

An open mouth with teeth showing indicates a false friend— be on guard.

A small but shapely mouth predicts approaching money, and a large but shapely one forecasts a valuable new friend.

Otherwise, see Lips.

Islamic Dream Interpretation

by Ibn Seerin
(See Arabic months)