YELLOWSTONE PARK MAMMOTH, WY

Maximum of Maximum Temperature (Degrees Fahrenheit)

(489905)

File last updated on March 28, 2024
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.

YEAR(S)JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANN
189443.00a41.00 48.00 -----z-----z-----z90.00 89.00 74.00a73.00a58.00a43.00b-----z
189541.00b44.00 44.00v-----z68.00r81.00 87.00 87.00 80.00 69.00 56.00a44.00 -----z
189648.00 44.00 50.00 60.00 76.00 83.00 88.00 86.00 81.00a73.00 50.00c43.00 88.00d
1897-----z40.00 42.00 66.00 77.00 83.00 89.00 88.00 81.00a72.00 59.00b37.00b-----z
189839.00 45.00a45.00a68.00 73.00 87.00h87.00 89.00 85.00 67.00 52.00a37.00 89.00k
189940.00 43.00 49.00 60.00 71.00 82.00 88.00 83.00 85.00 74.00 57.00a35.00b88.00c
190037.00c33.00o58.00e66.00 77.00 92.00 93.00 93.00 82.00 67.00a57.00a44.00 93.00y
190141.00 42.00 49.00a70.00a78.00 76.00b96.00 88.00 81.00b71.00 51.00a41.00e96.00l
190244.00a47.00 44.00b65.00 77.00a84.00a86.00 85.00a78.00a72.00 57.00a45.00 86.00h
190345.00 40.00a54.00a68.00a76.00 79.00a87.00b90.00a82.00a70.00 60.00 45.00a90.00i
1904-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1905-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1906-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1907-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1908-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1909-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1910-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1911-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1912-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1913-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1914-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1915-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1916-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1917-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1918-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1919-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1920-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1921-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1922-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1923-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1924-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1925-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1926-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1927-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1928-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1929-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1930-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1931-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1932-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1933-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1934-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1935-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1936-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1937-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1938-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1939-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1940-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1941-----z-----z-----z-----z-----z83.00 85.00 91.00 72.00 69.00 52.00 50.00a-----z
194249.00 39.00 52.00b69.00a75.00 77.00 91.00a87.00a82.00a76.00a49.00 45.00 91.00g
1943-----z51.00a58.00 67.00 75.00a79.00 91.00 87.00 81.00 78.00 55.00 47.00a-----z
194445.00 44.00 48.00 62.00 77.00 84.00 83.00 84.00 82.00 74.00 48.00 42.00 84.00
194545.00 43.00 56.00 64.00 73.00 83.00 89.00 88.00 84.00 75.00 56.00 43.00 89.00
194643.00 49.00 57.00 75.00a77.00 81.00 91.00 90.00 79.00 68.00 47.00 44.00 91.00a
194737.00a47.00 54.00 66.00 77.00 72.00 89.00 82.00 85.00 65.00 62.00 42.00 89.00a
194841.00 43.00a48.00b65.00a82.00a82.00 85.00a86.00 81.00a73.00 44.00 35.00 86.00g
194932.00 44.00a50.00 65.00 77.00 85.00a89.00 95.00b82.00 65.00 62.00 43.00 95.00d
195043.00 54.00 51.00 62.00 73.00 82.00 85.00 88.00 92.00 71.00 56.00 45.00 92.00
195140.00 52.00 49.00 64.00e73.00 79.00 88.00 89.00 77.00 74.00 50.00 40.00 89.00e
195240.00 44.00 46.00 73.00 72.00 83.00 91.00 85.00 81.00f76.00 55.00 42.00a91.00g
195348.00 44.00 59.00 68.00 73.00 81.00a-----z89.00a86.00 76.00 61.00 41.00a-----z
195445.00 49.00a48.00 61.00 83.00 85.00e94.00a92.00 84.00 70.00 59.00 45.00 94.00g
195536.00 44.00 50.00 65.00 76.00 88.00 94.00 88.00 88.00 72.00 48.00 44.00 94.00
195645.00 45.00a58.00 65.00 79.00 86.00 90.00a87.00 86.00 76.00 48.00 41.00 90.00b
195735.00 47.00 50.00 70.00 72.00 80.00 86.00 88.00a77.00 77.00 49.00 43.00 88.00a
195841.00 55.00 50.00 59.00 79.00a85.00 84.00 90.00 84.00 76.00 53.00a48.00 90.00b
195945.00 45.00 48.00 65.00 73.00b87.00 92.00 87.00 84.00 65.00 58.00 49.00 92.00b
196043.00 40.00 61.00 66.00 79.00 89.00 95.00 87.00 82.00 72.00a53.00 50.00 95.00a
196144.00b48.00a59.00l70.00d78.00 90.00h89.00a94.00 73.00a70.00 52.00a41.00a-----z
196245.00a49.00 49.00 74.00a66.00b85.00 85.00 91.00 81.00 74.00 65.00 52.00d91.00h
196348.00c54.00 58.00 68.00 72.00a81.00c89.00a91.00a84.00a77.00 57.00a45.00a91.00l
196441.00 39.00 61.00 68.00 78.00 85.00b89.00a88.00d83.00d76.00 60.00 41.00e89.00p
196546.00c47.00a61.00g64.00d72.00a80.00a86.00 89.00a75.00f74.00a65.00 51.00b-----z
196643.00a46.00c63.00 62.00c80.00d87.00c92.00b88.00a-----z-----z-----z-----z-----z
1967-----z48.00h51.00c61.00f78.00 81.00 95.00 89.00a90.00 66.00b55.00b42.00a-----z
196845.00 48.00 57.00a66.00e74.00 84.00 89.00 85.00 81.00 79.00 46.00 47.00 89.00f
196947.00 47.00a56.00a72.00a78.00 85.00 85.00 91.00 84.00 67.00 55.00 48.00d91.00g
197045.00 49.00c47.00 59.00 74.00a90.00 88.00 88.00 82.00a75.00 56.00 43.00b90.00g
197144.00 46.00 45.00d64.00c-----z88.00 88.00a90.00 79.00 75.00a56.00a40.00 -----z
197239.00b48.00 64.00 67.00 79.00 82.00 88.00 90.00 78.00a70.00d56.00 40.00 90.00g
197345.00 50.00 53.00 60.00 77.00 84.00 93.00 88.00 81.00 70.00 -----z50.00e-----z
197450.00 40.00a50.00a72.00 71.00 90.00 92.00 85.00 81.00a74.00 49.00 42.00f92.00i
197537.00b38.00b45.00 52.00 75.00 77.00 90.00 86.00 82.00 76.00 66.00 46.00 90.00d
197648.00 45.00 53.00 64.00 72.00 85.00d93.00 90.00 87.00f70.00a59.00a42.00 93.00l
197741.00 53.00d56.00d72.00d-----z-----z-----z-----z-----z69.00k-----z45.00f-----z
1978-----z-----z-----z63.00b75.00f85.00 89.00 86.00 86.00 73.00j-----z-----z-----z
197936.00f47.00 54.00 63.00 81.00a88.00 90.00a93.00 87.00c76.00c52.00a48.00a93.00p
198043.00a49.00b48.00g71.00c77.00c82.00b90.00 85.00a84.00d77.00e64.00b49.00 -----z
198149.00 53.00d54.00c65.00d74.00f78.00e-----z-----z-----z65.00l61.00i46.00i-----z
198242.00g45.00b47.00a62.00h74.00p84.00 89.00 89.00 83.00o-----z48.00b42.00 -----z
198344.00b50.00b57.00c64.00a79.00d79.00a90.00b-----z85.00f-----z58.00b37.00e-----z
198448.00 47.00 48.00a70.00b81.00b89.00 87.00 88.00a-----z-----z48.00a-----z-----z
198541.00 42.00b52.00 68.00b79.00i87.00a91.00 -----z77.00a67.00a59.00 42.00a-----z
198649.00a53.00 64.00 66.00 84.00 87.00 89.00 90.00 84.00 66.00 55.00 42.00b90.00c
198747.00 53.00 58.00 78.00 85.00 88.00a88.00 85.00 85.00 78.00 62.00 50.00 88.00a
198844.00 54.00 53.00 72.00 79.00 92.00 93.00 90.00 87.00 75.00 61.00 44.00 93.00
198943.00 49.00 59.00a74.00 73.00 83.00 91.00 90.00 80.00 70.00 55.00 48.00 91.00a
199045.00 45.00 56.00 70.00 71.00 91.00 91.00 92.00 87.00 75.00 60.00 49.00c92.00c
199137.00 51.00 56.00a61.00 71.00a80.00 89.00 92.00 90.00 77.00 47.00 49.00 92.00b
199245.00 52.00 60.00 76.00 80.00 88.00 85.00 89.00 78.00 80.00 51.00a44.00 89.00a
199341.00 47.00 57.00 57.00 78.00 82.00 82.00 82.00 80.00 77.00 52.00 47.00 82.00
199449.00 48.00a60.00 74.00 79.00 87.00 91.00a91.00 85.00 68.00 50.00 45.00c91.00e
199544.00a56.00b52.00 62.00 74.00a81.00 88.00 90.00 88.00 69.00 55.00 47.00 90.00d
199645.00a52.00 52.00 69.00 71.00 84.00 90.00a94.00 82.00 79.00a56.00 43.00 94.00c
199746.00 45.00 57.00 60.00 77.00 82.00 88.00 90.00 86.00 76.00 61.00 45.00 90.00
199843.00 46.00 56.00 68.00 77.00 76.00 94.00 90.00a92.00 72.00 54.00 46.00 94.00a
199940.00 49.00 66.00 66.00 78.00 82.00 92.00 88.00 80.00 72.00 66.00 51.00 92.00
200046.00 45.00 55.00 75.00 70.00 87.00a95.00 96.00 87.00 69.00a42.00 39.00d96.00f
200142.00b40.00 54.00 70.00 81.00a85.00 93.00 94.00 88.00 77.00 61.00 36.00 94.00c
200242.00 46.00 55.00a64.00b81.00 90.00 99.00 84.00 85.00 64.00a51.00 45.00 99.00d
200342.00 46.00 57.00 66.00a86.00 84.00 96.00 97.00 86.00 76.00 -----z49.00 -----z
200443.00 44.00 65.00 69.00 76.00 81.00 91.00 89.00 86.00 74.00 60.00 45.00a91.00a
200552.00 55.00 57.00 68.00 73.00 90.00 93.00 92.00 85.00 72.00 54.00 48.00 93.00
200649.00 -----z56.00 72.00a82.00 88.00a96.00 90.00 89.00 75.00 57.00 46.00 -----z
200746.00a52.00 62.00 76.00 82.00 92.00i97.00 90.00 90.00 71.00 59.00 45.00 97.00j
200843.00 49.00 43.00e64.00a78.00j89.00 89.00 89.00 83.00 78.00a61.00 40.00b89.00s
200942.00a43.00 58.00 68.00 78.00 83.00 90.00 90.00 84.00 64.00 60.00 38.00a90.00b
201042.00 47.00 56.00 72.00 74.00 92.00b94.00e89.00 82.00 81.00b65.00 43.00 94.00i
201147.00 47.00 50.00 57.00 69.00 84.00 89.00 90.00 81.00 80.00 53.00 43.00 90.00
201246.00 43.00 65.00 78.00 78.00 88.00 90.00 92.00 81.00 73.00 63.00 45.00 92.00
201346.00 46.00 57.00 65.00 79.00 88.00 91.00 90.00 88.00 65.00 58.00 43.00 91.00
201445.00 45.00 54.00 65.00 79.00 76.00 88.00 88.00a80.00 71.00 66.00 57.00 88.00a
201553.00 54.00 64.00 71.00 70.00 92.00 88.00 89.00 83.00 75.00 53.00 46.00 92.00
201644.00 53.00 58.00 71.00 73.00 88.00 91.00 90.00 89.00 76.00 65.00 38.00 91.00
201741.00 50.00 64.00b64.00 76.00 87.00a93.00 89.00 91.00 68.00b57.00c41.00b93.00j
201846.00 46.00b56.00 73.00b78.00 84.00 93.00 96.00 85.00 71.00 50.00a47.00 96.00e
201947.00 45.00 56.00j68.00b75.00 80.00a92.00b92.00 88.00 63.00b56.00 46.00 92.00q
202044.00 44.00 56.00 70.00a83.00 85.00 90.00b94.00 91.00 76.00 65.00 46.00 94.00c
202139.00a47.00 55.00a70.00a77.00a92.00 96.00 91.00 87.00 76.00 51.00g46.00a96.00l
202243.00 46.00 66.00 62.00a76.00 85.00 90.00a94.00 94.00 70.00 57.00 41.00 94.00b
202344.00 46.00a43.00 69.00f81.00a80.00 95.00a92.00a82.00 73.00a56.00 49.00 95.00k
202455.00 55.00a59.00j-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
Period of Record Statistics
MEAN43.80 46.96 54.23 66.93 76.46 84.18 90.11 89.24 83.56 72.57 55.84 44.26 91.00
S.D.3.91 4.26 5.81 4.99 3.91 4.23 3.32 3.03 4.28 4.26 5.55 4.07 3.00
SKEW-0.11 0.17 0.02 -0.10 -0.01 -0.18 0.13 0.06 -0.09 -0.33 -0.12 0.06 -0.39
MAX55.00 56.00 66.00 78.00 86.00 92.00 99.00 97.00 94.00 81.00 66.00 57.00 99.00
MIN32.00 38.00 42.00 52.00 66.00 72.00 82.00 82.00 72.00 63.00 42.00 35.00 82.00
YRS87 89 86 87 83 88 90 89 84 86 86 87 41