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The climate of Yellowstone National Park (Wyoming - United States of America)
Yellowstone National Park is the oldest national park in the world. The largest part of the park is located in Wyoming, smaller parts are located in Montana and Idaho. The park was opened on 1 March 1872 by president Ulysses Grant. Since the 1970s the park has been a Unesco preservation site. Yellowstone is one of the main attractions of the United States, every year more than 2 million people visit the park. The biggest tourist attraction in the park is the Old Faithfull Geyser. Every 90 minutes Old Faithful erupts which can shoot 32,000 liters of boiling water up to 50 meters into the air. In total more than 1,000 thermal springs and more than 200 geysers can be found in the park. Lake Yellowstone is the largest lake in the park, in some points this lake is more than 600 meters deep. Most tourists come here to go hiking, camping, sailing and fishing. During the summer forest fires are not uncommon. Yellowstone National Park has a cold steppe climate with low precipitation figures. Only during early spring precipitation figures may be slightly higher. Winters are very cold with longer periods with subzero temperatures. Especially nights are cold during the winter. During the winter you are not allowed to go camping in the park. During the summer it is pleasantly warm during the day. Nights may still be cool. If you go camping during the summer you will need a sleeping bag.

 

Climate information
The figures below are based on long term weather and climate records. They are an average for Yellowstone National Park:

average
 maximum
temperature (įC)

average
minimum

temperature (įC)
average
hours of sunshine

per
day
average days with precipitation
per month
average
mm
precipitation
per month
average
sea
temperature (įC)
January -1 -13 4 9 n/a
February 2 -9 6 8 n/a
March 6 -6 8 9 n/a
April 12 -1 9 9 n/a
May 18 3 9 11 n/a
June 23 7 11 10 n/a
July 28 10 12 7 n/a
August 27 9 11 7 n/a
September 20 4 9 7 n/a
October 14 -1 7 6 n/a
November 5 -7 4 7 n/a
December 0 -12 4 9 n/a
= 0-5 mm ● = 6-30 mm ● = 31-60 mm ● = 61-100 mm ● = 101-200 mm ● = over 200 mm
= 0-0.2 inches ● = 0.2-1.2 inches ● = 1.2-2.4 inches ● = 2.5-4 inches ● = 4.1-8 inches ● = over 8 inches

More climate information
Climate figures are very useful but donít present a general impression of the climate and the eventual weather circumstances within a certain period. The figures donít always reflect the chance of wintry weather, extreme heat or hurricanes. That is why we offer useful extra climate information for each month of the year:
 

chance of
(very) hot

weather

chance of
(very) cool
weather
chance of
long-term

precipitation
chance of
hurricanes
(cyclones)
chance of
sunny days

UV-index

January
February
March
April
May
June
July
August
September
October
November
December
click here for the explanation of the symbols

Disclaimer
The information at this site was carefully composed from climate data collected by meteorological services, meteorological offices, climate experts and other sources. ďMore climate infoĒ is based on statistics, climate data and personal experience. No rights can be derived from this site. Weather has no memory and gives no guaranties. Nothing is as changeable and unpredictable as the weather. The authors of this site feel in no way responsible for any damages caused by misinterpretation or other circumstances that may influence your holiday or trip to a certain destination. We provide information, itís up to the reader to use it to itís benefit.

 

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