CHARLESTON, IL

Average of Maximum Temperature (Degrees Fahrenheit)

(111436)

File last updated on September 28, 2022
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
189636.48 40.00b43.41b71.33 80.61 82.23 85.13 84.97 75.50b63.23a53.46f43.10a64.18a
189732.44d38.29d49.52b58.82b68.06 80.60 86.00 83.94 85.03 74.97 50.52a35.58 61.98
189838.39 39.36 52.81 59.33 72.42 85.03 87.55 85.06 79.87 60.81 47.43 36.00 62.00
189935.10 28.54 43.32 63.93 73.50a84.97 87.42 88.68 77.60 71.87 55.03 37.94 62.32
190039.53a33.56a45.29 65.28a77.67a80.10 -----z88.26 79.97 74.37a51.52e39.37a61.35a
190139.54e33.96 49.07a-----z72.00 -----z-----z-----z-----z-----z46.83 32.69e45.68f
190235.55 29.00a52.86b60.14b79.00 81.79a87.87 81.58 74.70 68.77 57.87 37.20f64.47a
190334.19 35.93 56.33a62.70 78.32 78.00 87.16 82.86b77.83 66.19 47.83 34.43a61.82
190430.30a33.18a48.55 57.43 73.39 81.17 85.39 84.13 78.87 65.94 53.40 38.90 60.89
190530.24b30.77b56.35 63.73 75.13 85.86a84.19 87.06 80.00 65.06 53.00 39.55 62.58
190642.69b38.04a37.57a68.60 77.35 80.87 86.71 87.90 82.10 65.55 50.17 41.84 63.28
190741.87 39.43 58.81 53.83 68.84 79.37 86.94 83.29 76.66a64.58 49.77 40.71 62.01
190839.84 36.93 57.27a63.60 74.52 82.30 87.13a87.48 85.07 69.13 54.76a43.81 65.15
190939.94 44.93 50.52 63.77 71.65 84.20 83.13 89.39 76.53 62.94 61.90 32.06 63.41
191035.87 37.86 64.68 64.83 69.13 82.43 84.71 83.23 77.03 69.68 49.37 35.74 62.88
191141.19 44.50 54.26 61.43 82.52 89.37 89.94 85.71 80.00 64.29 46.00 42.77 65.16
191225.19 31.79 40.52 66.80 76.55 79.79a85.48 82.81 78.67 70.28b53.00 45.27a61.35
191341.52d36.89 50.35 63.80 78.55 89.50 93.06 -----z-----z62.88f57.76a44.53a61.77c
191443.26 33.36 48.81 63.97a80.32 93.17 96.16 89.81 78.97 68.87 57.37 32.77 65.57
191534.61 45.46 45.42 71.28a71.57a79.53 82.44d76.65 80.13 70.90a57.90 38.27a62.85
191642.77 39.14 51.94 62.93 78.13 80.40 94.84 91.13 79.23 69.35 57.53 40.35 65.65
191742.06 38.79 55.61 62.90 69.04e81.73 88.00 84.29 79.43 60.06 54.03 32.19 62.35
191823.58 43.64 59.21b56.69d82.11c87.87 86.84 91.94 72.37 69.52 52.50 49.77a64.67
191943.55 43.04b55.29 66.53 71.65 87.50 93.74 87.03 85.30 71.23 51.07 35.48 65.95
192031.65 39.97 53.97 58.23 73.39 85.30 88.32 86.29 82.13 74.00 50.93 41.16 63.78
192142.29 46.11 64.23 67.86a77.58 88.57 94.29 85.10 82.77 68.29 53.97 43.84 67.91
192236.94 42.79 54.29 66.57 78.23 87.73 87.61 89.48 86.70 72.77 55.14a43.74 66.83
192342.23 36.11 52.74 63.93a73.03 83.73 89.40a86.58 77.43 63.87 54.60 51.26 64.58
192432.71 39.52 44.87 68.31a68.84 82.33 85.58 87.32 74.27 75.70a54.53 36.48 62.54
192537.65 49.04 57.81 73.47 76.52 88.33 89.39 87.97 87.10 56.19 50.20 38.84 66.04
192638.58 43.29 38.24n58.43 79.77 80.97 92.29 88.13 79.07 65.48 48.47 37.42 64.72a
192734.81d50.82 54.61 64.21a73.84 79.83 88.29 82.00 84.90 74.68 57.87 40.29 65.51
192839.87 43.38 53.32 61.24a77.83a77.67 89.84 89.48 81.04f68.52 52.60 44.52 63.48a
192935.68 35.89 61.13 68.40 72.58 83.43 89.71c87.31b80.17 66.23 47.80 39.45 63.98
193032.45 51.43 52.06 70.30 77.52 86.00 94.35 91.13 83.47 66.52 54.45a40.03 66.64
193142.77 48.50 46.87 67.27 72.68 88.63 94.13 87.71 86.07 71.84 62.80 49.00 68.19
193246.00 51.24 47.06 67.43 77.90 88.07 93.45 90.03 82.67 69.35 48.73 42.19 67.01
193349.45 43.14 52.90 65.43 77.10 94.33 94.58 88.19 89.50 68.97 54.00 46.48 68.67
193443.94 37.25 50.55 66.97 83.90 95.90 96.48 88.00 77.93 73.32 56.37 36.90 67.29
193540.61 43.68 59.32 60.27 68.87 79.33 91.23 87.58 80.43 67.55 50.30 34.03 63.60
193630.71 32.24 56.77a61.00 79.61 88.97 99.03 94.35 82.60 66.00 50.00 44.16 65.45
193740.13 38.89 48.33a63.07 75.55 82.40 86.87 88.39 78.27 63.32 49.63 36.03 62.57
193837.65 47.75 59.42 65.77 74.42 82.63 88.61 87.81 81.31a73.48 56.10 41.94 66.41
193943.68 41.75 54.97 60.67 78.81 84.07 87.71 84.68 86.27 71.74 52.80 45.74 66.07
194024.03 37.86 49.29 62.93 71.77 84.77 90.13 88.65 79.40 72.90 50.13 44.87 63.06
194138.90 37.86 48.06 69.20 80.06 85.90 89.29 89.03 81.73 69.19 53.93 45.32 65.71
194239.81 37.11 56.77 70.60 73.74 83.27 86.32 83.42 77.70 70.26 56.10 36.32 64.28
194338.94 48.57 49.39 64.10 72.84 86.27 90.39 91.00 77.87 68.06 50.13 38.39 64.66
194442.87 44.03 48.29 61.83 79.32 -----z-----z-----z-----z-----z44.53m34.90 51.88f
194533.32 42.93 63.06 64.23 69.39 79.60 -----z-----z-----z-----z-----z-----z58.76f
194638.36t46.57 65.58 69.10 70.06 84.20 88.16 81.32 80.73 74.55 55.70 45.81 69.25a
194741.77 34.00 43.90 63.87 71.68 78.80 83.97 94.52 80.17 75.90 45.43 42.39 63.03
194833.68 42.10 52.74 68.50 74.16 84.79a86.38b88.06 80.90 65.67a55.23 44.21b64.70
194940.07a45.11 53.03 64.79b79.69b86.08f90.03b85.54e76.13 70.53a55.97 47.59b64.41a
195049.85d42.50b50.19 59.17a79.59d84.35d85.61c84.44d75.82m73.16 50.28e32.03 62.83a
195139.42 41.50 46.56f61.85d-----z81.46f87.00c86.76f76.92d70.72b45.29b39.61 57.79d
195242.13 46.31 50.68 65.17 74.96c90.23 89.77e86.59d82.67u65.27e52.21b41.58 64.08a
195341.00 47.43 53.06 60.56e75.04c89.85c91.32l89.29c85.92d75.10 55.97 43.13 65.12a
195440.26 48.74a48.19 68.93b69.75c89.33 94.23 87.10 85.67 67.48 52.90 39.19 65.98
195537.00a40.39 50.90 70.10 76.58 77.40 90.94 90.45 85.19c67.97b47.97 37.39 64.36
195636.32 39.90 51.61 63.37 77.16 85.79a85.39 86.32 82.17 77.00 53.00 44.97 65.25
195732.58 45.04 51.94 63.67 74.10 83.30 87.87 87.42 77.67 63.61 50.67 46.90a63.73
195836.71 35.07 43.77a65.10 75.39 79.67 83.13 85.03 78.73 69.32 55.83 36.03 61.98
195933.19 41.21 53.06 65.27 77.13 87.20 88.28b88.13 81.60 66.16 45.57 43.71 64.21
196036.73a35.00 33.63a68.29b70.35 81.67 85.61 87.87 84.67 69.74 53.57 35.23 61.86
196135.55 45.48a53.71 58.57 71.13 82.63 87.23 84.48 83.23 68.94 52.07b37.94 63.41
196231.19 43.57 46.81 63.57 83.06 85.07 86.06 86.84 77.17 70.68 52.47 36.90 63.62
196328.35 34.86 57.29 70.00 74.16 87.03a86.39 83.13 81.77 79.35 56.63 28.65 63.97
196441.52 39.86 51.65 66.17 80.00 87.37 88.23 88.06 81.30 67.59b58.28a38.90 65.74
196539.13 41.89 42.39 67.20 81.39 83.30 85.48 85.03 78.67 66.81 57.20 47.23 64.64
196631.81 40.04 54.52 60.40 71.37a84.80 92.77a85.10 76.40 65.10 54.20 39.77 63.02
196741.23 39.37a54.87 68.20 70.48 83.90 84.77 80.74 76.30 64.68 47.77 40.77 62.76
196833.84 37.07 55.48 65.07 70.87a85.17 86.29 85.61 79.80 65.23a49.13 37.68 62.60
196933.55 40.04 46.23 66.33 76.13 81.23 87.23 85.10 77.73 65.74 48.73 35.81 61.99
197029.10 38.68 47.45 66.17a78.48 80.93a87.26 85.16 84.55s63.71c49.27 43.32 60.87a
197133.29 38.36 48.53a65.77 71.03a86.37 81.19 82.84 80.27 72.24b53.33 46.04c63.27
197236.55 40.17 51.77 63.17 76.58 81.17 84.06 83.52 78.40 61.13 45.07 37.10 61.56
197339.23 42.00 58.45 60.33 70.58g82.63 85.55 83.77 78.73 71.74 54.96b37.00d63.13a
197439.17a44.32 56.68 66.47 71.39 78.57 89.40a83.19 71.20 67.00 51.37 40.84 63.30
197540.10 38.36 47.45 63.00 77.03 84.03a84.68 85.23 74.10 71.17a57.40 40.94 63.62
197633.90b51.17 59.00 68.67 71.55 82.67 87.77 83.26 78.03 60.42 46.53 37.16 63.34
197721.19 39.39 57.35 70.53 81.90 81.17 89.48 83.10 79.63 63.81 51.17 37.39 63.01
197826.00 28.79 43.84 66.17 71.77 83.70 86.00 82.71 83.24a65.84 56.33 41.16 61.30
197924.19 29.54 52.94 61.90 74.53a84.97 83.65 82.77 80.47 67.94 51.03 45.55 61.62
198035.74 32.43a45.84 62.43 75.71 83.17 91.23 88.35 80.60 63.90 51.00a40.61 62.58
198134.19 43.15a52.48 70.00 68.32 83.67 84.61 81.39 75.00 65.68 55.03 36.81e62.53
198229.46c35.14 52.16 59.59a79.74 77.38a84.48 82.03a76.23 67.55 53.23 47.42 62.04
198335.97 45.00 51.26 58.10 69.87 83.07 89.77 90.35 81.03 67.32 55.17 26.77a62.81
198431.32 46.79 42.29 60.47 72.13 86.70 85.39 86.29 75.14a69.50a51.52a48.94 63.04
198528.60a35.89 56.61 70.17a76.55 79.86a84.68 79.68 78.40 69.07a53.43 32.26 62.10
198641.23 40.15a57.77a70.34a76.16 84.57 87.13 81.26 81.68b65.71 47.10a39.90 64.42
198734.50a46.21 57.26 67.47 82.29 85.87 85.70a85.47a80.93a62.39 56.76a40.90a65.48
198835.52 37.93 52.57a67.17 79.97 88.50 90.26 90.16 81.83 61.55 54.00 41.94 65.12
198945.84 34.12d54.71c63.40 71.04c81.43 83.61 82.55 74.13 69.80a52.83 27.93b61.78
199047.52 46.33a56.83a62.86a69.19 81.57 83.81 81.16 78.40 65.94 58.40 41.90a64.49
199131.42 44.22a55.89c67.31a78.81 85.00 86.84 86.00 79.87 69.13 47.83 43.52b64.65
199239.86b48.14a54.19 63.79a74.06 82.38a84.58 80.90a76.67 66.40a51.00c41.27a63.60
199337.81 38.29d47.03 60.83 75.45 83.30 87.55 86.57a73.07a64.32 50.00 38.71 61.91
199429.94 37.93 52.71 65.77 73.58 87.59a85.77a82.65 79.18b68.29 57.57 46.26 63.93
199536.77 40.25 55.77 65.45a72.26 84.93 88.71 90.29 77.30 70.50a47.23 37.13 63.88
199634.43a41.97 46.74 61.59a74.65 83.86a86.13 85.66b75.87 67.73a44.86a41.13 62.05
199732.61 42.50 56.14b61.30 69.37a80.27 87.57a81.57a79.69a67.00 46.50 39.71 62.02
199841.68 49.07 50.47a64.67 79.40a82.76a85.45 86.29 85.40 69.03 55.33 44.40a66.16
199938.10b45.57 49.06 65.47 77.07a83.24a90.90 84.26 82.10 68.35 60.70 42.43a65.61
200037.43a48.75a58.52 65.72a76.81 81.63 83.52 85.26 77.80 70.26 48.34a27.23a63.44
200134.62b43.41a48.48 72.23 77.39 81.47 87.35 85.97 78.23 66.06 61.20 44.52 65.08
200243.93a44.81a49.10 66.97 72.94 86.10 90.97a86.84 84.13 64.42 49.33 41.17a65.06
200331.16 35.85a57.00a67.73 73.00 80.69a87.03 86.42 76.50 67.58 56.20 41.68 63.40
200434.32 40.97 55.16 66.90a78.68 82.63 82.77a80.90 81.63 65.86b55.07a41.61 63.88
200537.77a45.56a49.73a67.70 75.65 87.17 88.52b87.52b84.57 67.16 56.47 34.94 65.23
200648.61 43.39 52.55 71.00 73.23 83.60 88.35 84.90 75.80 64.00 54.50 46.26 65.52
200739.32 30.14 62.16 63.79a80.77 86.30 84.40a91.13 83.70 72.20a54.31a40.19 65.70
2008-----z-----z-----z-----z-----z-----z-----z83.45t80.25n67.37l49.67c41.46c45.57j
200932.55 44.67a61.71q64.90a75.77 84.96b81.90 83.20a78.27 60.83a57.73 38.84 63.97a
201029.69b35.41a54.86b73.93a76.07b86.57b89.10b90.32 81.43 72.97 56.20 33.29 64.99
201132.39 43.25 53.87 70.00a74.30a85.38a91.63d88.90 76.97 69.47a57.07 44.77a65.67
201242.81 46.14 70.30a69.43 83.93b87.14a97.48 88.87a77.97 65.13 54.23 47.27a69.22
201341.97b42.22a45.61 65.69a77.35 83.47 84.17a85.90 84.97 68.30a52.85c40.54c64.42
201435.79g35.59a51.40a68.90a76.43c86.15d83.00c85.94 79.43 68.04f48.79b40.57c65.62b
201537.10a31.81a51.52d67.41a78.76b83.20 85.61 85.47a81.36b68.87a60.69a51.32 65.26
201638.23a45.28 60.93a66.52a75.31b88.85c87.35e87.62e84.61b73.89d60.64b37.97a67.27
201743.29c57.12c56.50g73.21a76.23e85.92d89.72f84.45b85.21f73.88g56.85d41.50c64.82d
201833.88g48.70e50.73a60.14a86.26d86.92d86.50c86.34b85.32h68.83a46.62d46.00d66.70b
201936.06 42.77b49.81d67.87 78.45 84.31a90.63d88.55 85.75b68.07b47.93c48.11c65.69
202042.81d43.08d53.46e63.80e73.80a86.60 89.19 84.27a79.86a67.32 59.37 45.27a65.74
202139.53a33.04 59.50a65.79a73.83a85.27 86.97 90.06 82.13 73.68 51.93a54.71 66.37
202232.81 45.83e59.17a63.17 78.57c86.93 87.52 84.90 81.65g-----z-----z-----z67.36d
Period of Record Statistics
MEAN36.96 40.87 52.44 65.05 75.44 84.18 87.88 86.08 80.01 68.16 52.86 40.53 64.16
S.D.5.49 5.53 5.74 3.83 3.92 3.42 3.45 3.09 3.50 3.96 4.07 5.07 1.79
SKEW-0.31 -0.05 -0.08 -0.13 0.18 0.50 0.83 0.00 0.17 0.06 0.06 -0.18 0.43
MAX49.85 57.12 70.30 73.93 86.26 95.90 99.03 94.52 89.50 79.35 62.80 54.71 69.22
MIN21.19 28.54 33.63 53.83 68.06 77.38 81.19 76.65 71.20 56.19 44.86 26.77 60.89
YRS123 126 122 125 124 122 120 121 115 119 123 124 104