• A bull elk bugles in Yellowstone National Park

    Yellowstone

    National Park ID,MT,WY

Weather

Summer: Daytime temperatures are often in the 70s (25C) and occasionally in the 80s (30C) in lower elevations. Nights are usually cool and temperatures may drop below freezing at higher elevations. Thunderstorms are common in the afternoons.

Winter: Temperatures often range from zero to 20F(-20 to -5C) throughout the day. Sub-zero temperatures over-night are common. The record low temperature is -66F (-54C). Snowfall is highly variable. While the average is 150 inches per year, it is not uncommon for higher elevations to get twice that amount.

Spring & Fall: Daytime temperatures range from the 30s to the 60s (0 to 20C) with overnight lows in the teens to single digits (-5 to -20C). Snow is common in the Spring and Fall with regular accumulations of 12" in a 24 hour period. At any time of year, be prepared for sudden changes. Unpredictability, more than anything else, characterizes Yellowstone's weather. Always be equipped with a wide range of clothing options. Be sure to bring a warm jacket and rain gear even in the summer.

 

Weather Forecasts

We have weather reports and forecasts available from a few different sources.

 
 
 

Month

Average Maximum Temperature (F)

Average Minimum Temperature (F)

Average Precipitation (Inches)

Average Total Snow Fall (Inches)
Jan 28.6 9.6 1.1 14.5
Feb 34.0 13.0 0.75 10.4
March 39.6 17.2 1.1 13.1
April 49.4 26.0 1.2 5.9
May 60.4 34.3 2.0 1.5
June 70.0 41.2 1.5 0.1
July 79.6 46.7 1.5 0.0
Aug 78.3 45.3 1.4 0.0
Sep 67.8 37.0 1.3 0.5
Oct 55.7 29.4 1.0 3.7
Nov 38.7 19.2 1.0 9.0
Dec 30.5 11.8 1.0 13.5
Annual 52.8 27.6 15.4 72.1

Did You Know?

Bison in Yellowstone.

There are more people hurt by bison than by bears each year in Yellowstone. Park regulations state that visitors must stay at least 25 yards away from bison or elk and 100 yards away from bears.