WATERTOWN REGIONAL AP, SD

Maximum of Maximum Temperature (Degrees Fahrenheit)

(398932)

File last updated on April 25, 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
189338.00 37.00 51.00 72.00 83.00a97.00 104.00a98.00p101.00m77.00h72.00 46.00 -----z
189440.00a43.00 78.00 83.00a96.00 96.00b-----z-----z-----z-----z56.00o52.00b-----z
189545.00g-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1896-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1897-----z-----z55.00e82.00 84.00 91.00a94.00 96.00 93.00 78.00 66.00 44.00b-----z
189838.00 54.00 64.00 82.00 87.00 92.00 93.00 94.00 94.00 77.00a67.00 47.00a94.00b
189945.00 47.00a55.00 86.00 85.00 87.00 97.00 91.00 86.00 77.00 67.00 51.00 97.00a
190056.00 45.00 63.00 80.00 93.00 93.00 97.00 99.00 86.00a80.00 65.00 55.00d99.00e
190149.00e48.00c64.00d-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
190243.00e56.00b-----z81.00 80.00a86.00a96.00a88.00i83.00p77.00b54.00b42.00a-----z
190341.00 39.00 63.00 75.00a79.00 86.00 92.00c89.00b84.00 73.00b69.00b46.00a92.00k
190436.00 38.00 58.00b78.00b84.00 86.00 89.00a93.00a83.00c76.00 69.00 51.00a93.00j
190533.00c54.00 70.00 75.00 78.00a86.00b92.00a93.00 89.00a84.00a67.00b50.00 93.00k
190645.00f54.00b52.00 82.00c89.00 85.00a85.00 93.00 88.00 75.00 54.00 46.00 93.00l
190735.00a48.00 71.00b65.00c77.00b83.00i89.00c91.00b84.00 79.00i59.00 58.00a-----z
190846.00b41.00a51.00b83.00c81.00a85.00c91.00f95.00b96.00a79.00 67.00 41.00 96.00u
190940.00 44.00 57.00b72.00a91.00 91.00 92.00 95.00f87.00 86.00c74.00 40.00 95.00l
191036.00 38.00 82.00 94.00a84.00 94.00 98.00 93.00 88.00a88.00 -----z47.00a-----z
191141.00 44.00 71.00e77.00a93.00 98.00a100.00 94.00 93.00 70.00 53.00 46.00 100.00g
191234.00a49.00a59.00 81.00 84.00 95.00 94.00 96.00 95.00b84.00 76.00a49.00 96.00e
191351.00 64.00 62.00a82.00 90.00 93.00 92.00 98.00 98.00 88.00 62.00 57.00 98.00a
191444.00 43.00 64.00 80.00 87.00 85.00 98.00 96.00 87.00a83.00a72.00a49.00 98.00c
191540.00 45.00 46.00 84.00 86.00 83.00 90.00 87.00 85.00 78.00 66.00 47.00a90.00a
191635.00a44.00 64.00 72.00 93.00 85.00 96.00 97.00 89.00 80.00 68.00 57.00 97.00a
191742.00 50.00 65.00 68.00 89.00 90.00 108.00a92.00a82.00 70.00a72.00 51.00a108.00d
191843.00 54.00 73.00 69.00 90.00 94.00 93.00 94.00 86.00 82.00 60.00 56.00 94.00
191951.00 39.00 67.00 73.00 87.00 91.00 99.00 91.00 89.00 79.00 56.00 46.00 99.00
192051.00 38.00 68.00 61.00 84.00 93.00 95.00 91.00 92.00 86.00 55.00 47.00 95.00
192152.00 60.00 82.00 81.00 86.00 97.00 96.00 97.00 89.00 81.00 63.00 55.00a97.00a
192242.00 38.00a52.00 71.00 82.00 94.00 95.00 99.00 97.00 90.00 56.00 45.00 99.00a
192347.00 41.00 57.00 83.00 84.00 91.00a94.00 93.00 94.00 78.00 62.00 56.00 94.00a
192448.00 55.00 53.00 85.00 80.00 83.00 89.00 90.00a83.00 83.00 65.00 46.00 90.00a
192541.00 51.00 78.00 84.00a92.00 91.00 96.00 97.00 97.00 62.00 58.00 47.00 97.00a
192640.00 50.00 67.00 84.00 95.00 97.00 101.00 98.00 89.00 72.00 61.00 39.00 101.00
192741.00 46.00 62.00 80.00 80.00 94.00 89.00 88.00 94.00 85.00 58.00 33.00 94.00
192842.00 45.00 80.00 79.00 93.00a85.00 94.00 100.00 85.00 85.00 58.00 53.00 100.00a
192942.00 31.00 61.00 80.00 84.00 96.00 100.00 100.00 98.00 79.00 54.00a48.00 100.00a
193040.00 65.00 66.00 83.00 86.00 96.00 106.00 104.00 89.00 83.00a71.00 52.00 106.00a
193156.00 60.00 61.00 89.00 95.00 107.00 106.00a99.00a104.00 84.00 77.00 44.00 107.00b
193238.00 58.00 67.00 75.00 94.00 95.00 101.00 99.00 90.00 83.00 64.00 54.00 101.00
193350.00 54.00 68.00 74.00 90.00 106.00 108.00 103.00 101.00 89.00 69.00 55.00 108.00
193450.00 58.00 67.00 89.00a106.00 96.00a110.00 105.00 88.00 88.00 68.00 41.00 110.00b
193543.00 50.00 69.00 69.00 77.00 87.00 101.00 97.00 95.00 77.00 56.00 44.00a101.00a
193634.00 38.00 58.00 84.00 92.00 106.00 105.00 105.00 99.00 83.00 52.00a41.00a106.00b
193731.00 38.00 53.00 70.00 90.00 100.00 100.00 102.00 95.00 82.00 68.00 47.00 102.00
193838.00a39.00 64.00 82.00 82.00 95.00 98.00 101.00 93.00 90.00 71.00 49.00 101.00a
193943.00 41.00 81.00 89.00 94.00 91.00 102.00 93.00 96.00 85.00 69.00 69.00 102.00
194036.00 45.00 49.00 77.00e87.00c96.00 109.00 96.00 92.00 80.00 60.00 41.00c109.00k
194139.00 32.00 64.00 75.00 90.00 92.00 103.00c97.00 91.00 77.00 65.00 64.00 103.00c
194254.00 47.00 63.00 80.00 83.00 84.00 94.00 91.00 88.00 84.00 64.00f37.00 94.00f
194336.00 49.00 81.00 75.00 93.00 94.00 98.00 96.00 88.00 81.00 49.00 49.00 98.00
194456.00 43.00 50.00 64.00 88.00 97.00 96.00 94.00 85.00 78.00 66.00 41.00 97.00
194538.00a41.00 73.00 78.00 79.00 88.00 96.00 95.00 99.00 80.00 64.00 40.00 99.00a
194635.00a44.00 79.00 81.00 83.00 96.00 94.00 96.00 85.00 74.00 58.00 47.00 96.00a
194750.00 47.00a63.00 78.00 80.00 85.00 94.00 104.00 97.00 90.00 49.00 36.00a104.00b
194840.00b41.00 58.00 82.00 86.00 87.00 98.00 95.00 90.00 75.00 62.00 51.00 98.00b
194946.00 49.00 54.00 80.00 92.00 90.00 99.00 96.00 85.00 76.00 68.00 46.00 99.00
195036.00 43.00 58.00 68.00 92.00 93.00 89.00 90.00 89.00 85.00 65.00 43.00 93.00
195138.00 49.00 46.00 80.00 80.00 81.00 91.00 90.00 80.00 91.00 56.00 48.00 91.00
195240.00 39.00 43.00 85.00 86.00 95.00 92.00 96.00 96.00 73.00 67.00 44.00 96.00
195340.00 39.00 62.00 76.00 88.00 96.00 93.00 92.00 89.00 88.00 71.00 40.00 96.00
195436.00 53.00 50.00 83.00 81.00 89.00 98.00 94.00 86.00 74.00 69.00 44.00 98.00
195541.00 40.00 66.00 80.00 89.00 88.00 99.00 99.00 96.00 84.00 63.00 37.00 99.00
195641.00 34.00 53.00 71.00 84.00 98.00 92.00 89.00 93.00 82.00 60.00 50.00 98.00
195733.00 44.00a56.00 79.00 83.00 85.00 99.00 99.00 85.00 77.00 55.00 47.00 99.00a
195852.00 66.00 55.00 85.00 89.00 94.00 89.00 100.00 92.00 88.00 68.00 41.00 100.00
195939.00 39.00 64.00 82.00 95.00 99.00 97.00 97.00 97.00 72.00 52.00 49.00 99.00
196037.00 37.00 45.00 79.00 83.00 87.00 98.00 93.00 95.00 78.00 66.00 44.00 98.00
196141.00 45.00 67.00 78.00a85.00 94.00 92.00 97.00 93.00 85.00 67.00 54.00 97.00a
196245.00a47.00 53.00 92.00 84.00 86.00 90.00 94.00 84.00 81.00 64.00 56.00 94.00a
196352.00 55.00a76.00 76.00 85.00 99.00 90.00 93.00 87.00a90.00 59.00 45.00 99.00b
196448.00 54.00 50.00 86.00 92.00 96.00 100.00 99.00 90.00 77.00 68.00 37.00 100.00
196539.00 45.00 42.00 83.00 86.00 85.00 93.00 102.00 86.00 71.00 74.00 49.00 102.00
196640.00 48.00 72.00 71.00 89.00 95.00 108.00 93.00 85.00 82.00 50.00 46.00 108.00
196744.00 46.00 77.00 72.00 91.00 89.00 96.00 92.00a87.00 84.00 61.00 51.00 96.00a
196845.00 37.00 75.00 87.00 85.00a96.00 94.00 95.00 87.00 78.00 55.00 44.00 96.00a
196936.00 36.00 46.00 72.00 92.00 89.00 96.00a93.00 92.00 72.00 63.00 55.00 96.00a
197035.00 45.00 43.00 81.00 88.00 95.00 96.00 96.00a99.00 86.00 54.00 45.00a99.00b
197134.00 45.00 68.00 79.00 84.00 94.00 95.00 98.00 93.00 73.00 64.00 38.00 98.00
197235.00 37.00 52.00 70.00 87.00 87.00 90.00 95.00 92.00 78.00 57.00 43.00 95.00
197344.00 46.00 58.00 76.00 82.00 92.00 98.00 100.00 86.00 78.00 60.00 45.00 100.00
197445.00 45.00 58.00 80.00 86.00 98.00 98.00 94.00 91.00 79.00 61.00 49.00 98.00
197540.00 36.00 59.00 56.00 85.00 90.00 101.00 96.00 90.00 83.00 73.00 41.00 101.00
197641.00 60.00 70.00 81.00 79.00 94.00 103.00 100.00 100.00 84.00 66.00 44.00 103.00
197732.00 54.00 67.00 85.00 89.00 90.00 97.00 88.00 87.00 72.00 57.00 41.00 97.00
197825.00 34.00 66.00 67.00 85.00 90.00 97.00 96.00 97.00 78.00 73.00 38.00 97.00
197923.00 35.00 40.00 71.00 88.00 100.00 90.00 95.00 94.00 70.00 65.00 51.00 100.00
198047.00a37.00 58.00 95.00 87.00 89.00 95.00 95.00 94.00 86.00 66.00 48.00 95.00a
198165.00 57.00 67.00 81.00 86.00 90.00 94.00 92.00 93.00 72.00 63.00 41.00 94.00
198235.00 55.00 58.00 81.00 85.00 89.00 98.00 98.00 88.00 73.00 57.00 53.00 98.00
198345.00 57.00 59.00 70.00 85.00 95.00 98.00 100.00 97.00 78.00 57.00b26.00 100.00b
198441.00 49.00a49.00 74.00 82.00 86.00 96.00 98.00 93.00 74.00 61.00 47.00 98.00a
198538.00 55.00 64.00 90.00 87.00 90.00 -----z-----z85.00 72.00 60.00 36.00 -----z
198643.00 43.00b74.00a74.00 86.00 92.00 93.00 89.00 79.00 75.00 57.00 50.00 93.00c
198749.00 59.00 73.00 86.00 91.00 97.00 99.00 96.00 86.00 80.00 61.00 41.00 99.00
198841.00 52.00 69.00 82.00 89.00 105.00 104.00 101.00 93.00 79.00 55.00 54.00 105.00
198955.00 40.00 69.00 78.00 83.00 95.00 99.00 93.00 86.00 81.00 62.00 44.00 99.00
199052.00 52.00 66.00 87.00 82.00 92.00 96.00 91.00 96.00 81.00 71.00 57.00 96.00
199140.00 56.00 70.00 86.00 89.00 91.00 99.00 96.00 89.00 85.00 56.00 46.00 99.00
199245.00 56.00 66.00 92.00 89.00 88.00 84.00 91.00 82.00 87.00 47.00 36.00 92.00
199339.00 36.00 62.00 68.00 77.00 85.00 90.00 90.00 82.00 89.00 53.00 38.00 90.00
199433.00 41.00 61.00 80.00 86.00 90.00 89.00 89.00 88.00 70.00 60.00 47.00 90.00
199539.00 45.00 69.00 60.00 77.00 93.00 94.00 94.00 87.00 83.00 53.00 48.00 94.00
199645.00 53.00 62.00 78.00g-----z-----z87.00 88.00 88.00 82.00 59.00a31.00a-----z
199740.00 38.00 56.00 71.00 84.00 90.00a94.00 88.00 89.00 89.00 50.00 43.00 94.00a
199849.00 50.00 61.00 79.00 85.00a88.00a92.00 94.00 92.00 70.00 59.00 59.00 94.00b
199939.00a58.00 69.00 71.00 84.00 87.00 97.00 96.00 85.00 82.00 77.00 53.00 97.00a
200043.00 65.00 74.00 80.00 89.00 97.00 95.00 94.00 90.00 83.00 66.00 35.00a97.00a
200141.00 37.00 41.00 85.00 90.00 96.00 96.00 94.00 91.00 81.00 73.00 46.00 96.00
200250.00 57.00 59.00 84.00 88.00 99.00 102.00 90.00 93.00 71.00 63.00 51.00a102.00a
200347.00 42.00 74.00 89.00 82.00 88.00 92.00 97.00 92.00 86.00 57.00 41.00 97.00
200445.00 45.00 71.00 87.00 89.00 84.00 91.00 88.00 89.00 76.00 68.00 49.00 91.00
200543.00 59.00 70.00 78.00 81.00 94.00 99.00 97.00 90.00 82.00 67.00 39.00 99.00
200642.00 41.00 65.00 82.00 92.00 91.00 103.00 91.00 83.00 83.00 74.00 55.00 103.00
200736.00 41.00 67.00 77.00 87.00 91.00 100.00 91.00 90.00 86.00 63.00 34.00 100.00
200841.00 38.00 52.00 74.00 79.00 85.00 94.00 86.00 87.00 70.00 72.00 42.00 94.00
200942.00 40.00 60.00 87.00 94.00 90.00 83.00 90.00 82.00 63.00 64.00 43.00 94.00
201034.00 33.00 70.00 79.00 87.00 86.00 93.00 94.00 82.00 84.00 68.00 37.00 94.00
201135.00 43.00 43.00 71.00 85.00 94.00 96.00 94.00 90.00 83.00 58.00 51.00 96.00
201257.00 46.00 82.00 81.00 92.00 91.00 97.00 98.00 91.00 77.00 63.00 56.00 98.00
201338.00 36.00 52.00 74.00a89.00 85.00 89.00 93.00 91.00 75.00 54.00 41.00 93.00a
201440.00 39.00 60.00 79.00 87.00 86.00 90.00 84.00 83.00 74.00 59.00 49.00 90.00
201543.00 46.00 74.00 76.00 84.00 96.00 94.00 89.00 91.00 86.00 70.00 48.00 96.00
201641.00 60.00 73.00 80.00 91.00 96.00 95.00 93.00 82.00 76.00 72.00 39.00 96.00
201740.00 58.00 66.00 75.00 83.00 91.00 94.00 85.00 90.00 73.00 60.00 50.00 94.00
201848.00 41.00 46.00 80.00 96.00 94.00 91.00 89.00 91.00 75.00 53.00 44.00 96.00
201939.00 36.00 57.00 80.00 85.00 93.00 90.00 83.00 86.00 68.00 50.00 39.00 93.00
202037.00 43.00 61.00 75.00 82.00 93.00 91.00 92.00 84.00 82.00 78.00 55.00 93.00
202144.00 47.00 79.00 82.00 86.00 99.00 98.00 90.00 89.00 81.00 68.00 54.00 99.00
202241.00 51.00 62.00 73.00 83.00a97.00 94.00 96.00 91.00 80.00 70.00 39.00 97.00a
202336.00 39.00 38.00 81.00a88.00 95.00 99.00 97.00 101.00 90.00 64.00 61.00 101.00a
202454.00 60.00 71.00 86.00f-----z-----z-----z-----z-----z-----z-----z-----z-----z
Period of Record Statistics
MEAN41.95 46.33 62.32 78.61 86.55 91.94 95.84 94.49 89.99 79.76 62.82 46.45 97.79
S.D.6.58 8.12 10.11 6.88 4.84 5.13 5.16 4.37 5.02 6.01 6.97 6.93 4.13
SKEW0.47 0.41 -0.20 -0.43 0.46 0.36 0.37 0.01 0.28 -0.34 -0.05 0.15 0.52
MAX65.00 66.00 82.00 95.00 106.00 107.00 110.00 105.00 104.00 91.00 78.00 69.00 110.00
MIN23.00 31.00 38.00 56.00 77.00 81.00 83.00 83.00 79.00 62.00 47.00 26.00 90.00
YRS128 129 129 127 127 126 125 123 125 125 125 128 109