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    Yellowstone National Park, WY

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    Date Hi/Lo Precip Snow Forecast Avg. HI / LO
    Fri 30°/23° 0.02 in 0 in   24°/1°
    Sat 32°/28° 0.06 in 0.5 in   24°/1°
    Sun 35°/19° 0.30 in 5.0 in   23°/0°
    Mon 21°/8° 0 in 0 in   23°/0°
    Tue 18°/10° 0 in 0 in   23°/0°
    Wed 25°/12° 0 in 0 in   23°/-1°
    Thu 27°/0° 0 in 0 in   22°/-1°
    Fri 27°/-6° 0 in 0 in   22°/-1°
    Sat 21°/-9° 0 in 0 in   22°/-1°
    Sun 26°/-4° 0 in 0 in   22°/-2°
    Mon 28°/-6° 0 in 0 in   22°/-2°
    Tue 36°/-8° 0 in 0 in   22°/-2°
    Wed 23°/3° 0.04 in 0.8 in   22°/-2°
    Thu 27°/-9° 0 in 0 in   22°/-2°
    Fri 27°/5° 0 in 0 in   22°/-2°
    Sat 24°/-1° 0.17 in 2 in

    Periods of snow, 1-3"

    22°/-2°
    Sun 19°/10° 0.02 in 0.4 in

    A blend of sun and clouds

    21°/-2°
    Mon 23°/17° 0.01 in 0.2 in

    Cloudy with a little snow

    21°/-2°
    Tue 29°/21° 0.08 in 1.3 in

    Mainly cloudy

    21°/-2°
    Wed 26°/-2° 0.39 in 4.3 in

    Intermittent snow

    21°/-2°
    Thu 12°/-9° 0 in 0 in

    Mostly cloudy and cold

    21°/-2°
    Fri 13°/-8° 0.01 in 0.3 in

    Cloudy, snow possible; cold

    21°/-1°
    Sat 12°/-8° 0.01 in 0.1 in

    A couple of flurries possible

    22°/-1°
    Sun 13°/-1° 0.01 in 0.1 in

    Cloudy, snow showers possible

    22°/-1°
    Mon 18°/-1° 0 in 0 in

    Chance for snow showers

    22°/-1°
    Tue 14°/1° 0 in 0 in

    Snow or flurries possible

    22°/-1°
    Wed 34°/9° 0 in 0 in

    Partial sunshine

    22°/0°
    Thu 25°/5° 0 in 0 in

    Sunshine

    22°/0°
    Fri 9°/-10° 0.01 in 0.5 in

    Clouds and sun

    22°/0°
    Sat 13°/-3° 0.23 in 6.5 in

    Cold with snow

    22°/0°
    Sun 13°/-2° 0.22 in 6.5 in

    Cold with clouds and sun

    22°/1°

    Temperature Graph December 2017

    40 30 20 10 0 -10 -20 Today 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
    Avg. Hi Avg. Lo Actual Hi Actual Lo Forecast Hi Forecast Lo

    Monthly Summary for December 2017

      Actual Normal Departure Record
    High 27° 22°   N/A° (N/A)
    Low -1°   N/A° (N/A)
    Average 16° 11° +5°  
    Precip 0.42 in 2.67 in -2.25 in  
    Snow 6.3 in