# Mammoth, Wyoming

Mammoth is a census-designated place in Park County, Wyoming, United States, in Yellowstone National Park. As of the 2010 census, its population was 263.

## Education
### K-12 education

The 2010 U.S. Census states that the CDP is in "School District Not Defined". Students from Mammoth attend Gardiner Public Schools in Gardiner, Montana. The former Mammoth School has a preschool and a community center.
Circa the 1880s there were education programs for dependent children, involving a person hired to teach via money from parents or a soldier providing such services. Some residents chose to send their children to schools in locations towards the east of the country or in Bozeman, Montana. At the time, a lack of transportation options made it difficult to send children to the school in Gardiner. In 1921 the Mammoth School, created by the Park Service, opened. The school at first did not have a fixed location and did not receive funds from the states of Montana nor Wyoming. State funding began in 1948.
In 1963 a permanent building opened, using Mission 66 funding. Prior to 2008, some of the students in Mammoth went to school in Gardiner, but at the time Wyoming did not have an agreement to pay Montana the tuition money. By 2008 more and more Yellowstone employees only were in Yellowstone during park season, and fewer employees had dependent children. Additionally, the interstate agreement to send Wyoming money to Montana was made circa that year. For those two reasons, in 2008 the Mammoth School closed.
By 2022 there was an increase in families with children, historian of Yellowstone Alicia Murphy stated that because no school is in Mammoth, not as many families came as there would be otherwise. Some families have one parent in a Bozeman, Montana with the children attending school in Bozeman instead of in the Mammoth/Gardiner area.

### Libraries

A public library staffed by volunteers opened in the 1940s. A National Park Service document stated that the library ended operations around the decade of the 2000s though "It is not known when the Mammoth library group disbanded".

## Climate

Climate data for Yellowstone National Park – Mammoth, Wyoming, 1991–2020 normals, extremes 1894–present :
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °F (°C) | 55 (13) | 56 (13) | 66 (19) | 78 (26) | 86 (30) | 92 (33) | 99 (37) | 97 (36) | 92 (33) | 81 (27) | 66 (19) | 57 (14) | 99 (37) |
| Mean maximum °F (°C) | 44.6 (7.0) | 47.8 (8.8) | 57.1 (13.9) | 68.0 (20.0) | 76.9 (24.9) | 85.2 (29.6) | 91.2 (32.9) | 90.5 (32.5) | 85.4 (29.7) | 73.0 (22.8) | 56.8 (13.8) | 44.8 (7.1) | 92.3 (33.5) |
| Mean daily maximum °F (°C) | 31.4 (−0.3) | 34.2 (1.2) | 41.9 (5.5) | 49.7 (9.8) | 59.6 (15.3) | 69.5 (20.8) | 80.8 (27.1) | 79.8 (26.6) | 68.8 (20.4) | 53.6 (12.0) | 39.4 (4.1) | 30.3 (−0.9) | 53.3 (11.8) |
| Daily mean °F (°C) | 21.7 (−5.7) | 23.3 (−4.8) | 30.5 (−0.8) | 38.0 (3.3) | 47.1 (8.4) | 55.8 (13.2) | 64.6 (18.1) | 63.1 (17.3) | 53.9 (12.2) | 41.3 (5.2) | 29.3 (−1.5) | 21.1 (−6.1) | 40.8 (4.9) |
| Mean daily minimum °F (°C) | 11.9 (−11.2) | 12.3 (−10.9) | 19.1 (−7.2) | 26.3 (−3.2) | 34.6 (1.4) | 42.0 (5.6) | 48.3 (9.1) | 46.5 (8.1) | 39.0 (3.9) | 28.9 (−1.7) | 19.2 (−7.1) | 11.9 (−11.2) | 28.3 (−2.1) |
| Mean minimum °F (°C) | −9.5 (−23.1) | −8.7 (−22.6) | 0.8 (−17.3) | 12.1 (−11.1) | 22.6 (−5.2) | 32.2 (0.1) | 40.0 (4.4) | 36.9 (2.7) | 27.7 (−2.4) | 12.6 (−10.8) | −0.2 (−17.9) | −9.1 (−22.8) | −18.0 (−27.8) |
| Record low °F (°C) | −36 (−38) | −35 (−37) | −24 (−31) | −6 (−21) | 6 (−14) | 20 (−7) | 21 (−6) | 24 (−4) | 0 (−18) | −8 (−22) | −27 (−33) | −35 (−37) | −36 (−38) |
| Average precipitation inches (mm) | 0.91 (23) | 0.79 (20) | 1.09 (28) | 1.40 (36) | 1.82 (46) | 1.86 (47) | 1.27 (32) | 1.05 (27) | 1.21 (31) | 1.34 (34) | 1.15 (29) | 0.91 (23) | 14.80 (376) |
| Average snowfall inches (cm) | 11.5 (29) | 11.5 (29) | 10.9 (28) | 7.8 (20) | 1.7 (4.3) | 0.3 (0.76) | 0.0 (0.0) | 0.0 (0.0) | 0.6 (1.5) | 4.7 (12) | 9.9 (25) | 12.6 (32) | 71.5 (182) |
| Average precipitation days (≥ 0.01 in) | 10.6 | 11.4 | 10.5 | 11.3 | 12.8 | 12.5 | 9.2 | 8.5 | 8.7 | 9.7 | 9.6 | 11.9 | 126.7 |
| Average snowy days (≥ 0.1 in) | 8.7 | 9.4 | 7.0 | 5.5 | 1.2 | 0.1 | 0.0 | 0.0 | 0.3 | 2.8 | 7.5 | 10.2 | 52.7 |
| Source: NOAA ||||||||||||||