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Monthly Averages for
Yellowstone Lake, WY

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Table Display Graph Display
Month Avg.
High		 Avg.
Low		 Mean Avg.
Precip		 Record
High		 Record
Low
Jan 24�F 1�F 13�F 1.65 in. 46�F (2005) -50�F (1963)
Feb 28�F 1�F 15�F 1.68 in. 56�F (1982) -50�F (1985)
Mar 36�F 9�F 23�F 1.80 in. 61�F (2004) -42�F (1965)
Apr 43�F 18�F 31�F 1.78 in. 65�F (1987) -26�F (1975)
May 52�F 28�F 40�F 2.47 in. 78�F (2003) -2�F (1967)
Jun 62�F 35�F 49�F 2.25 in. 83�F (1988) 14�F (1951)
Jul 72�F 42�F 57�F 1.62 in. 92�F (2003) 20�F (1985)
Aug 71�F 40�F 56�F 1.60 in. 91�F (1969) 17�F (1976)
Sep 62�F 32�F 47�F 1.46 in. 83�F (1956) -5�F (1985)
Oct 48�F 24�F 36�F 1.18 in. 72�F (1987) -13�F (1991)
Nov 34�F 14�F 24�F 1.85 in. 63�F (1949) -30�F (1955)
Dec 25�F 5�F 15�F 1.63 in. 48�F (1981) -43�F (1990)
Yellowstone Lake, WY Weather Facts
  • The average warmest month is July.
  • The highest recorded temperature was 92°F in 2003.
  • On average, the coolest month is February.
  • The lowest recorded temperature was -50°F in 1985.
  • The maximum average precipitation occurs in May.
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