MOUNT RUSHMORE NATIONAL MEMORIAL, SD

Maximum of Maximum Temperature (Degrees Fahrenheit)

(395870)

File last updated on December 5, 2025
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
1962-----z64.00b65.00 82.00 82.00 87.00 86.00 90.00 85.00 75.00 63.00a58.00 -----z
196351.00 65.00a72.00 77.00 80.00 89.00 96.00 92.00 86.00e83.00 64.00 57.00 96.00f
196455.00 55.00 65.00 72.00 85.00 89.00 96.00 92.00a87.00 80.00 71.00 55.00 96.00a
196557.00 60.00 57.00 74.00 78.00 75.00 90.00 93.00 77.00 78.00 70.00 65.00 93.00
196657.00 55.00 67.00 67.00 83.00 96.00 96.00 91.00 89.00a76.00 61.00 59.00 96.00a
196753.00 60.00 70.00 70.00 91.00 89.00 91.00 96.00a84.00 84.00 61.00 52.00 96.00a
196860.00 52.00 78.00 77.00 78.00 89.00a92.00 94.00 84.00 79.00 60.00 57.00 94.00a
196954.00a59.00 61.00 73.00 93.00 93.00 95.00 98.00 92.00 74.00 68.00 63.00 98.00a
197058.00 58.00 57.00a66.00 83.00 99.00 94.00 96.00 94.00 81.00 60.00 56.00a99.00b
197155.00a57.00 64.00 73.00 80.00 91.00 90.00 98.00 90.00f70.00b63.00c55.00 98.00l
197258.00 62.00 76.00 66.00 84.00 85.00 93.00 94.00 86.00 73.00 56.00 54.00a94.00a
197363.00a60.00 56.00e71.00 78.00 87.00 99.00a99.00 83.00 79.00 65.00a61.00 99.00h
197463.00 55.00 67.00 79.00 77.00 98.00a100.00 95.00a86.00a79.00 62.00 54.00 100.00c
197548.00 50.00 60.00 73.00 -----z85.00 95.00 96.00 88.00 82.00 75.00 62.00 -----z
197659.00a60.00 67.00a78.00 88.00d92.00 92.00a94.00 94.00 84.00 65.00 64.00 94.00g
197745.00 57.00 69.00 75.00 79.00 91.00 97.00 85.00a89.00 76.00 69.00 56.00 97.00a
197845.00 52.00 72.00a63.00 90.00 87.00 91.00a96.00 97.00 75.00a68.00 47.00 97.00c
197945.00a55.00 63.00a74.00 82.00a93.00 89.00 93.00 94.00 74.00 63.00 65.00 94.00c
198049.00a59.00 58.00 81.00 85.00 97.00 96.00 96.00 87.00 81.00 70.00a65.00 97.00b
198168.00 57.00 62.00a77.00 77.00 92.00 99.00 90.00 90.00 79.00 64.00a61.00 99.00b
198257.00 68.00 61.00 71.00a80.00a84.00 96.00a92.00a90.00a68.00 58.00a55.00 96.00f
198355.00 61.00 66.00 64.00 83.00 87.00 100.00 94.00 95.00 77.00 66.00 47.00 100.00
198456.00 59.00 61.00a64.00a85.00 85.00b91.00 90.00a86.00a75.00a62.00 63.00 91.00g
198550.00 54.00a69.00 80.00a84.00 92.00 100.00 94.00 83.00 72.00 65.00 49.00 100.00b
198662.00 63.00 74.00a74.00a84.00 91.00 93.00 96.00 75.00 69.00 58.00b51.00b96.00f
198765.00a59.00 71.00a81.00a84.00 89.00 95.00a92.00a85.00a77.00 59.00 59.00a95.00g
198861.00a64.00 66.00k77.00 84.00a97.00 96.00 98.00a82.00a73.00 65.00 66.00 98.00o
198963.00 51.00 68.00 85.00a80.00d97.00a99.00a92.00a86.00a73.00a64.00 58.00 99.00j
199052.00j54.00a62.00 72.00 76.00 92.00 99.00 94.00 89.00a76.00a68.00a61.00 99.00n
199153.00 59.00 59.00a73.00 74.00 89.00a92.00a94.00f88.00a79.00 64.00b58.00 94.00l
199262.00b65.00 64.00 81.00 89.00 84.00 81.00a91.00a86.00 83.00 58.00a48.00 91.00e
199353.00 55.00 69.00 65.00 79.00 82.00 87.00 88.00 81.00 77.00 58.00 64.00 88.00
199455.00 56.00 66.00 76.00 83.00 89.00 93.00 91.00 90.00 73.00 60.00 60.00 93.00
199557.00 65.00 67.00 63.00 72.00 87.00 94.00 92.00 86.00 78.00a65.00 58.00 94.00a
199659.00 64.00 63.00 78.00a80.00 87.00a88.00 90.00f86.00 77.00 59.00a56.00 90.00i
199760.00 55.00 72.00a66.00 77.00b88.00 91.00a87.00 83.00 83.00b66.00 67.00a91.00g
199855.00 53.00 66.00a73.00 78.00 82.00 94.00 86.00 93.00 71.00 65.00 62.00 94.00a
199952.00a62.00a68.00 67.00a78.00 88.00 95.00 89.00 80.00 79.00 74.00 58.00 95.00c
200055.00 61.00a67.00a67.00a84.00 94.00 97.00 95.00 92.00 76.00b55.00a50.00 97.00f
200158.00 53.00b54.00 79.00 86.00 93.00 89.00 94.00 94.00b78.00 69.00 53.00 94.00d
200263.00 58.00 55.00 73.00 78.00 98.00 96.00 91.00 89.00 67.00a68.00 57.00a98.00b
200364.00 57.00 69.00 76.00 89.00 84.00 97.00 90.00 88.00 80.00 59.00 60.00b97.00b
200456.00a60.00 73.00b74.00 84.00 92.00 91.00 89.00 87.00 76.00a67.00 57.00 92.00d
200564.00a62.00 62.00 76.00 80.00 91.00 97.00 92.00 91.00a82.00 67.00 57.00 97.00b
200658.00 60.00 61.00 73.00 85.00 90.00 100.00 94.00a87.00 79.00 69.00a61.00 100.00b
200756.00 53.00 72.00 74.00 86.00 92.00 98.00 97.00 89.00 77.00 64.00a56.00 98.00a
200853.00 50.00 62.00 73.00c80.00d84.00a89.00 89.00 82.00 71.00 71.00 50.00 89.00h
200962.00 59.00 68.00 76.00 89.00 89.00 86.00 87.00 82.00 72.00 68.00a48.00c89.00d
201061.00a45.00 64.00 69.00 87.00 88.00 90.00 95.00 84.00 82.00 70.00 50.00 95.00a
201152.00 56.00 60.00 67.00 74.00 94.00 95.00 92.00 82.00 86.00 67.00 60.00 95.00
201263.00 46.00 74.00 79.00 85.00 98.00 96.00 97.00 91.00 79.00 67.00 57.00 98.00
201357.00 50.00 63.00 68.00 81.00 83.00 93.00 90.00 87.00a75.00d59.00 56.00 93.00e
201453.00 56.00 62.00 74.00 84.00 85.00 93.00 86.00 88.00 73.00 67.00 68.00 93.00
201570.00 63.00 73.00 74.00 75.00 86.00 89.00 92.00 90.00 80.00 68.00 57.00 92.00
201655.00 66.00 69.00 79.00 76.00 94.00 93.00a93.00 82.00 74.00 71.00 51.00 94.00a
201762.00 67.00 72.00 68.00 83.00 89.00 95.00 86.00 87.00 75.00 66.00 58.00 95.00
201857.00 48.00 61.00 74.00 85.00 95.00 95.00 89.00 86.00a76.00 68.00 56.00 95.00a
201954.00 55.00 58.00 73.00 77.00 91.00 93.00 87.00 90.00 72.00 60.00a60.00 93.00a
202055.00 59.00 63.00 80.00 88.00a90.00 93.00d95.00 95.00 79.00 72.00a62.00a95.00g
202152.00a57.00 63.00 75.00 73.00 93.00 96.00 94.00 91.00c82.00 63.00a63.00 96.00e
202252.00a53.00a63.00b69.00 83.00 91.00 97.00 94.00a95.00 71.00b65.00 53.00 97.00g
202353.00 53.00 55.00 75.00 78.00a83.00 92.00 93.00 89.00 77.00 64.00 54.00a93.00b
202459.00 58.00 59.00 77.00 77.00 89.00 97.00 93.00 94.00 80.00 61.00 63.00 97.00
202556.00 57.00 77.00 74.00 85.00 92.00 93.00 92.00 87.00 83.00 68.00 -----z-----z
Period of Record Statistics
MEAN56.74 57.52 65.25 73.34 81.83 89.72 93.77 92.42 87.54 76.94 64.77 57.51 95.47
S.D.5.29 5.03 5.76 5.13 4.68 4.68 3.89 3.34 4.53 4.25 4.47 5.17 2.85
SKEW-0.02 -0.18 0.15 -0.21 0.09 -0.24 -0.63 -0.28 -0.21 -0.16 -0.06 -0.17 -0.37
MAX70.00 68.00 78.00 85.00 93.00 99.00 100.00 99.00 97.00 86.00 75.00 68.00 100.00
MIN45.00 45.00 54.00 63.00 72.00 75.00 81.00 85.00 75.00 67.00 55.00 47.00 88.00
YRS62 64 63 64 63 64 64 62 63 64 64 63 40