humidity and the outside weather?

Discussion in 'Incubating & Hatching Eggs' started by annrich, May 14, 2008.

  1. annrich

    annrich Songster

    May 27, 2007
    Western NY
    Well the weather is playing havoc with my bator. Its warm out then cold then rain. All in 2 days. I am upping the humidity now for a hatch but it's driving my nuts. So I have added shot glasses to the bator. Any other ideas?
  2. oatmail

    oatmail Hatching

    Apr 27, 2008
    Have you ever heard of central air?
    Poor chickens LOL:p
  3. annrich

    annrich Songster

    May 27, 2007
    Western NY
  4. Eggseronious

    Eggseronious Songster

    Mar 6, 2008
    East Tennessee
    I understand what U are saying. [​IMG] Get the room temp & humidity stable. Now U can work with the incubator. If the weather is damp outside the rooms humidity will be higher. I've found stable temps & humidity in the room means less adjustments.
  5. Davaroo

    Davaroo Poultry Crank

    Feb 4, 2007
    Leesville, SC
    There is a little recognized phenomenon called atmospheric vapor pressure, or barometirc pressure, that effects all bators.

    The incubator as we employ it, is essentially a box open to the atmosphere through the vents, which we heat and attempt to condition to our needs.

    But we do nothing to seal the box from changes in vapor pressure. Thus any passing storm front or atmospheric change in barometric pressure affects the ability of the air in the chamber itself to hold moisture vapor (relative humidity). This also affects, the temperature to a lesser extent, as the two are inter-related.

    As long as you use the simple incubator as we know it, you will be faced with this problem. I would make two suggestions that may help:

    1. Monitor both room humidity and barometric pressure, in addition to the humidity in the chamber. This way you will begin to see a correlation between the two and have advance warning of changes that will ulitmately be seen in the chamber.
    2. Learn about the "Dry Incubation" method and understand how it's main points apply to your situation.

    I hope this is of some use.
    Last edited by a moderator: May 15, 2008

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