CHARLESTON, IL

Average of Average Temperature (Degrees Fahrenheit)

(111436)

File last updated on October 3, 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
189630.81 33.52d35.86c60.88 70.58 72.55 75.73 74.65 65.50d51.07b44.84k36.50b55.24a
189725.31g31.27h42.28d51.11c58.40 71.82 77.37 72.74 71.55 62.29 42.23b29.94 57.97b
189832.73 32.75 44.95 50.30 63.77 74.92 77.40 75.66 71.03 53.44 38.95 28.73 53.72
189927.69 20.61 35.71 54.97 64.88b75.08 76.61 77.89 66.63 61.06 47.62 30.73 53.29
190032.26b24.37b36.71 54.12b66.86b71.82 -----z79.45 70.90 62.43c43.14i33.14b53.21b
190130.10j25.26c42.43b-----z62.32 -----z-----z-----z-----z-----z38.05 24.93i42.02h
190228.94 19.88c45.32c48.94d68.98 71.91a77.23 72.21 64.90 58.81 51.42 31.30k55.32a
190328.15 29.16 47.14b52.47a67.85 67.63 76.63 73.19b66.58 56.11 39.87 26.28b52.59
190422.88c25.75a41.34 48.18 63.68 71.10 74.23 72.79 68.77 55.47 43.25 31.29 51.56
190523.27e22.52b47.39 53.43 65.52 74.48a74.65 76.15 69.63 55.40 43.17 32.66 53.19
190634.72d29.06a31.33b57.12 64.98 70.63 73.58 76.50 70.90 54.65 40.90a34.17a53.21
190734.24 31.24a49.76 43.87 57.73 68.25 76.23 72.81 65.67a53.32 39.35 33.83a52.19
190831.29 29.79 47.33b53.21a64.60 71.30 75.73a74.76 70.67 55.15 44.67a34.50a54.42
190932.10 35.73 41.21 52.48 60.71 73.22 73.08 76.60 64.83 51.39 52.22 23.93a53.12
191029.31 28.30 52.31 53.15 58.32 69.60 75.11 71.97a67.17 57.74 38.67 27.47 52.43
191132.61 36.43 42.42 51.10 69.12a76.23 76.73 73.95 70.52 54.87 37.75 36.27 54.83
191216.94 24.10 32.40 55.43 65.55 68.33a75.77 72.60 67.83 56.80c42.69a35.60a51.17
191333.85e27.72a40.05a52.70 66.08a76.12a79.87 -----z-----z51.73g48.64a38.29b51.48c
191435.60 23.27 39.19 53.17a66.32 78.83 80.50 76.89 66.97 58.02 45.30 25.30c54.11
191525.15 38.21 36.48 58.21a60.93a68.93 71.90g67.52 69.30 58.00c46.40 30.98a50.92a
191633.12a29.43 40.24 50.83 65.68 68.25 80.71 78.03 65.58 55.26 45.88 29.74 53.56
191731.53 27.39 43.94 51.85 56.62e69.45 75.39 71.44 65.40 47.48 43.45 22.65 50.55
191813.44 32.68 45.84c47.58d69.73c73.63 73.71 79.32 59.75 58.53 42.92 40.10e53.10
191933.29 33.18c44.19 54.52 60.69 76.02 79.24 73.90 70.95 60.32 41.73 26.28a54.53
192023.21 31.55 43.08 47.80 62.18 72.02 75.11 73.40 69.88 60.57a41.58 33.39 52.81
192134.85 37.96 51.98 55.82b65.06 77.00 80.68 74.13 72.42 56.24 44.37 35.87 57.20
192226.13 34.02 44.63 55.42 66.56 74.28 75.40 75.37 71.65 59.44 45.33a33.73 55.16
192335.19 27.57 40.60 51.48a61.29 72.62 76.82a74.60 67.13 51.84 44.62 42.24 53.83
192422.76 31.05 37.03 55.52a56.69 71.33 72.60 74.95 62.47 61.17b44.05 27.40 51.42
192527.85 38.48 44.74 59.72 60.53 76.00 76.06 74.27 74.83 47.21 40.82 29.77 54.19
192630.32 35.46 28.62n46.80 65.95 68.23 78.31 77.02 69.67 55.61 38.90 29.97 54.20a
192726.48d40.04a45.37 54.05a62.52 68.05 75.05 69.26 72.40 60.35 47.35 30.34 54.27
192830.32 34.34 42.32 48.93a63.33a66.57 77.24 76.90 66.96f57.76 44.42 35.39 52.50a
192925.03 26.34 49.43a56.88 61.08 70.80 78.02c73.05b67.17a55.15 38.77 31.19 52.74
193023.56 41.95 40.79 57.20 65.13 72.18 80.40 77.00 70.68 54.48d44.66a32.60 55.05
193134.18 38.95 37.90 54.82 60.71 75.93 80.39 75.37 73.40 60.56 52.33a41.24 57.15
193237.89 41.03 36.03 54.43a64.68 75.10 78.97 76.15a68.55 56.73 37.73 32.68 55.00
193339.76 31.82 42.47 53.72 66.39 79.00 79.89 74.53 75.35 56.08 42.62 37.40 56.59
193435.05 27.00 39.13 54.02 68.27 80.75 82.50 75.71 66.85 59.68 47.43 29.90 55.52
193531.53a35.38 49.18 50.57 59.02 68.93 79.53 76.50 67.53 56.87 42.37 26.16 53.63
193622.18 22.34 46.07a49.43 67.06 73.98 84.66 81.18 71.22 55.65 39.82 35.55 54.09
193730.95 30.70 38.52a52.20 64.24 71.70 74.69 76.84 65.58 53.13 39.43 29.24 52.27
193829.15 40.07 49.29 55.00 63.02 71.28 76.89 76.81 70.12a59.71 45.05 33.23 55.80
193935.38a31.75 44.06 49.98 66.74 74.27 76.63 73.24 72.80 58.61 42.58 36.44 55.21
194016.26 32.07 40.00 51.77 60.55 73.80 77.24 76.71 66.07 60.37 41.15 37.32 52.78
194132.13 29.07 37.35 57.57a67.76 74.63 77.11 76.29 70.40 59.94 44.87 38.52 55.47
194230.06 29.71 46.29 58.23 63.50 73.38 76.63 73.58 66.77 58.16 46.43 28.48 54.27
194330.37 36.50 38.29 51.98 63.15 76.23 78.13 78.55 65.18 56.05 40.24a29.79 53.71
194434.37 35.09 38.90 51.76a68.69 -----z-----z-----z-----z-----z39.18m26.29b42.52f
194525.42a32.85a51.92 54.25 58.08 67.36a-----z-----z-----z-----z-----z-----z48.31f
194626.09t36.27 54.60 56.42 60.55 73.05 76.19 70.27 67.60 60.82 46.38 37.00 58.10a
194733.73 25.52 35.16 52.83a60.26 69.35 72.19 82.23 68.60 63.42 38.37 34.42 53.01
194824.05 32.66 42.76 57.43 62.16 72.84a75.74b75.03 69.28 53.72a46.17 36.16b54.00
194932.72a35.75 42.52 52.98b66.62b75.31f80.17b74.50e62.95 59.75a45.33 37.86b53.74a
195040.13d33.37b40.06 48.31a66.78d72.62d73.30c71.76d67.32m61.05 41.10e23.05 51.96a
195131.23 33.16 38.26f51.31d-----z70.65f75.89c74.42f64.46d58.74b36.80b31.24 47.85d
195233.71 37.74 40.73 53.20 63.80c78.30 78.46e73.83d67.89u50.23e42.86b35.05 53.45a
195334.23 37.46 43.42 49.96e63.79c77.57c78.82l75.43c69.85d60.42 44.98 33.85 53.72a
195431.34 38.41a37.71 57.36b57.91c76.73 80.61 75.71 72.00 57.08 42.68 32.34 54.99
195528.12a30.80 40.31 58.62 64.77 67.27 79.74 77.26 69.88d56.07b37.97 27.81 53.22
195626.53 32.09 40.52 50.67 64.85 73.29a74.10 74.02 66.17 61.40 41.31a37.68 53.55
195724.05 37.20 41.25a54.28 62.52a72.37 76.19 74.19 65.03 51.35 41.00 37.18a53.05
195828.22b24.73 36.07a52.53 62.21 67.32 73.31 73.58 66.69a55.74b45.43 26.06 50.99
195924.05 31.98 41.66 52.81a66.65 74.24e75.58f77.05 68.34a54.53 35.92 36.61 51.26a
196029.57a27.74 24.07a56.52b60.81 71.72 74.89 76.85 73.13 58.13 44.30 27.23 52.08
196126.71 36.57a45.29 49.03 59.55 71.15 76.13 73.97 71.48 58.18 43.98b30.58 53.55
196222.90 34.29 38.61 52.60 71.69 73.68 75.05 75.00 66.33 60.11 43.97 28.35 53.55
196320.21 24.84 46.90 57.98 62.98 74.64a75.37 72.61 68.87 66.03 47.22 20.63 53.19
196433.06 31.81 41.58 56.08 68.35 75.63 76.98 75.21 68.98 54.79b48.38a31.84 55.23
196530.31 32.09 34.08 56.50 69.95 72.42 74.84 73.84 69.07 56.45 47.88 39.97a54.78
196624.24 31.88 44.29 51.45 60.43a73.37 80.97a73.77 66.10 54.18 45.25 33.18 53.26
196732.94 29.52a45.27 57.30 60.15 74.03 74.00 70.44 65.43 55.18 40.37 34.10 53.23
196826.29 27.91 45.21 54.77 61.22a74.87 76.48 76.13 68.70 55.95a43.25 31.48 53.52
196926.26 33.45 37.05 55.82 65.48 71.43a78.15 74.05 66.62 56.15a40.08 29.62a52.85
197020.84 30.05 39.39 56.10a67.63 71.67a76.45 75.03 74.05s55.43c41.73 35.56 51.81a
197124.52 30.41 39.23a53.45 62.34f76.68 72.85 72.92 69.92 62.22b44.38 39.41h54.66b
197227.82 31.36a42.34 53.42 66.50 70.33 75.05 74.42 69.30 52.66 40.00 30.94 52.84
197331.61 34.04 50.52 52.70 61.83g73.43 77.06 75.61 70.75 61.92 46.29b29.36f57.39b
197430.38a35.30 46.76 56.78 63.55 68.78 77.70a73.00a60.91b55.26 43.07 34.18 53.81
197532.42 30.69a38.45a51.78 66.35 73.98a73.84 75.39 63.62 58.42a47.55a32.95a53.79
197624.91b40.48 47.35 55.87 59.87 71.20 76.06 71.58 65.48 50.06 35.73 26.85 52.12
197712.98a29.86 47.60a59.10 70.13 70.80 78.47 73.84 69.53a53.48a43.60 28.39 53.15
197817.66 19.12 35.15 54.87 61.35 72.79a75.69 73.21 71.09a54.42 47.28a33.26 51.32
197916.19 20.20 42.48a51.58 62.12b72.73 73.81 73.61 67.87 56.23a42.33 36.68 51.32
198028.42 23.98b37.66 51.75 64.44 71.68 80.19 78.15 69.29a52.77 42.09a33.29 52.81
198125.79 33.26a41.73 58.98 58.87 74.32 75.81 72.50 65.37 55.10 45.53 29.00e53.02
198219.29c26.12 41.90a48.60a68.79 67.34a75.87 71.40b66.03 56.63 45.03 40.66b52.31
198330.24 36.36 42.35 49.00 60.19 72.38 78.92 79.45 69.03 57.95a46.57 20.12a53.55
198423.42a38.09 34.32 51.37 61.32 76.30 74.39 75.68 65.02b61.05a42.71a39.75a53.62
198520.23a27.39a46.40b59.48a65.89 70.17a74.82a71.58 67.97 59.37a45.78 23.48 52.71
198631.52 31.92b46.43a58.05a66.03 74.60 78.34 70.69 71.82b56.65 39.97a32.95 54.91
198727.03a36.95 46.40b54.53 70.21 75.43 76.70a76.05a69.21a50.84 48.36b34.90a55.55
198826.23 27.67 42.58a54.02 66.02 74.13 78.44 78.73 70.16b50.37 44.83 32.50 53.81
198937.48 26.89f44.00c52.95 60.59c71.68 75.27a73.40 64.25 58.47a42.80 19.07b54.54a
199038.78a38.41a47.40a52.55a60.37 72.38 74.39 71.53a68.57 54.29 48.48 32.58a54.98
199125.19 35.63a45.86c57.88a69.66 74.80 76.53 75.35 68.32 58.87a40.38a35.32c55.32
199233.55b39.39b45.08a52.62d63.10 70.45a75.00 69.88a65.97 54.95a44.72c33.32a54.00
199329.63 30.78e38.98 51.23 64.82 72.95 78.32a76.30a63.90a53.40 41.68 33.10 52.92
199422.63 29.64 42.73 54.76a61.13 75.95a74.93a71.87 67.21b57.67a48.52 38.82 53.82
199529.75a30.96 45.73 54.64b62.26 73.23 78.08 79.92 65.43 58.27a37.60 28.94 53.73
199625.90a32.41a36.29 50.43a64.48 73.41a74.37 74.95b65.30 56.77a37.07a34.00 52.12
199724.10a35.80 45.41b49.65 58.35a71.45 76.45a72.23a68.24a56.32 39.67 33.18 52.57
199834.72a41.70 42.38b54.82 68.55a73.34a75.92 76.21 72.88 57.92 46.70 35.82a56.75
199929.48c37.93 39.39 55.88 64.82a73.21b80.05 72.82 67.05 56.26 49.72 34.28b55.07
200029.37a40.05a47.10b54.25b65.73 71.72 73.55 75.33a66.68 58.98 40.91a19.38b53.59
200126.68c34.00c38.48 60.80 65.95 70.83 76.61 75.19 66.10 55.42 49.98 36.82 54.74
200234.90b35.33a40.00 55.57a61.42 75.17 79.40b76.63 71.32 54.11 41.02b33.77a54.89
200323.58 27.39a45.43b56.30 62.61 68.95a75.84 75.48 65.03 56.18a47.52 34.65 53.25
200426.52a32.55 46.03 55.78a68.47 71.53 73.62b69.73 68.70 56.41b47.50a33.31 54.18
200530.88c36.98a39.95a56.28 62.21 75.13 77.21b77.14b72.66a56.47 46.15 28.35a54.95
200640.20a33.50 43.45 58.88 63.15 72.45 78.06 75.44 65.52a53.12a45.32 37.82 55.58
200731.85a22.25 51.63 51.79a69.34 74.32 73.35a80.16 70.97 62.10a44.17a33.48b55.45
2008-----z-----z-----z-----z-----z-----z-----z73.61v69.50n58.39m41.46c31.82f41.46k
200923.50 34.22c51.19r55.41c64.40 74.81c72.40b72.78a67.34a51.90a48.92 32.27a54.36a
201023.12c27.83a45.14b61.55b66.05b76.37c78.93b78.89 70.27 58.81b45.53a26.74 54.94
201125.26 34.43 44.80a58.90e64.34b75.38a81.58e77.26 66.40 57.28a48.53a38.07a56.02
201233.68 37.90 59.11d57.70 71.74b74.07a84.42 75.88a66.79a55.00 43.43a39.85a58.30
201332.26b33.71b37.24 55.20b67.31 73.12 73.93a74.25a71.72 57.07a43.02e30.95c54.15
201424.65g24.46a38.88b57.90a65.93c77.87d73.98d75.44 66.87 56.36f38.32b33.67d55.33b
201527.69b22.09a40.44d55.81a67.81b74.02 75.81 74.22a69.79b57.57b49.76a43.84 54.90
201629.60a36.06b51.85a55.67a64.09b76.81c77.29e77.94e72.91b62.33e49.86b30.87a57.11
201733.90e46.16c46.10g61.41a65.13e73.93g78.82f73.52b71.48f63.11h44.58e30.55c50.75e
201824.73g36.17e38.65a45.68b73.59d76.65d76.12c76.76b73.95h57.73a38.35d38.09d55.78b
201927.87 34.23b40.00d55.98a66.53a73.59a78.67d76.92 73.84b55.34c37.93c38.52c54.95
202034.91d35.12d44.79g51.84e62.72a74.25 78.37 73.38a67.67a54.22a48.48a35.98a56.09a
202131.42a22.96 47.47a54.12a61.97a72.52 77.24 79.02 72.00 64.37a44.19a46.13 56.12
202224.87a32.15e47.17a53.57a67.89c74.75 76.83a74.43a67.90a-----z-----z-----z57.73c
Period of Record Statistics
MEAN28.71 31.99 42.52 53.96 64.24 72.97 76.75 74.89 68.32 56.78 43.59 32.61 53.91
S.D.5.47 5.36 5.11 3.39 3.52 2.81 2.46 2.54 2.92 3.39 3.68 5.02 1.47
SKEW-0.43 -0.25 -0.01 -0.18 0.08 -0.09 0.65 0.07 -0.07 -0.12 0.04 -0.32 0.33
MAX40.20 46.16 59.11 61.55 73.59 80.75 84.66 82.23 75.35 66.03 52.33 46.13 58.30
MIN12.98 19.13 24.07 43.87 56.62 66.57 72.19 67.52 59.75 47.21 35.73 19.07 50.55
YRS121 124 121 125 123 121 118 121 116 119 122 120 98