Nuvak’chin Mana’s themes are ghosts (spirits), blessings, weather and winter. Her symbols are cold items, white, and moisture. This Goddess’s name means ‘Snow Maiden’. In the Niman Festival, Nuvak’chin Mana is a kachina who appears to pray for the return of cold weather so the moisture in the earth gets replenished. In our lives, She comes to replenish the well of our spirits and cool any overheated tempers that erupt with summer’s heat.
In Hopi tradition, Kachinas are spirits that help the tribe in all matters of life. Each year the Kachinas emerge around February to remind people of their blessings and to teach the sacred rituals that bring rain. Around this time of year, the Kachinas return to their rest, escorted out of the human realms by the Niman ritual.
To bring Nuvak’chin Mana’s coolheadedness and refreshing energy to your entire day, drink a glass of milk on the rocks at breakfast, lunch and dinner (or anytime in between). It’s very refreshing and the appearance of the beverage honors the Goddess. If your region has been suffering from a dry spell, pour out a little of the milk and ice on the ground as an offering to Nuvak’chin Mana so She might carry your need for rain to the nature spirits.
Last, take a moment at some point during the day to thank the Powers for all your blessings. A grateful heart is one ready to give and recieve more of the Goddess!”
(Patricia Telesco, “365 Goddess: a daily guide to the magic and inspiration of the goddess”.)
According to Heather Marseillan: “Shortly after Summer Solstice each year the Hopi ceremony called the Niman Kachina, also known as ‘The Going Home of the Kachina’ or ‘The Niman Festival’ will begin. Typically this Native American festival starts 4-5 days after the solstice and runs for about sixteen days. It is a very important time for the Hopi and they still celebrate it today. The Niman Kachina is more or less a drawn out good bye ceremony to the winter and spring Kachinas.
The Kachia are a spirits in the western Pueblo cosmology and religious practices of the Native American Tribes of the region. Western Pueblo, Native American cultures which are located in the southwestern region of the United States, include the Hopi, Zuni, Tewa Village, Acoma Pueblo, and the Laguna Pueblo. The Kachina has spread to the more eastern Pueblos as well.
A Kachina can represent anything that exists in the natural world or the cosmos including an ancestor to an element (earth, air, fire, water or spirit), a place, a quality that one can have, a natural phenomenon (drought, flood, tonado), or even an idea. There are over than 400 different Kachinas in Hopi and Pueblo cultures. The local pantheon of Kachinas will vary depending on the pueblo community. There may be Kachinas for the sun, stars, thunder storms, wind, plants, bugs, and many other such things. Kachinas are thought of as having human like relationships with each other.” 
“Nuvak’ Chin Mana Kachina is essentially the Snow Kachina. She is part of the Niman ceremony…which closes the Kachina season after the summer solstice. She is meant to be white. Her snow white hair is done up in small knots on either side of Her head and in ceremony She has painted black eyes and small dots above the eyes. On either side of Her cheeks She carries black warrior marks…In ceremony, She brings gifts to the audience and gives prayer for snow for the coming year. [Shown left] She kneels, ready to begin playing the gourd rasp, as She normally would during the Niman Ceremony.” 
Marseillan, Heather. Examiner.com, “Niman Kachina Festival“.
Teyjah. Art in Petroglyphs by Teyjah, “Nuvak’ Chin Mana Kachina“.