The following tables present IEM computed monthly data summaries based on
daily data provided by or computed for the IEM. A download interface
exists for the daily summary information. The climatology is provided by the
nearest NCEI climate station () within the current 1991-2020
dataset.
To load shown data into Microsoft Excel,
highlight the table information with your mouse and then copy/paste into Excel.
Precipitation Totals [inch]
Year
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
1975
M
M
M
M
M
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1976
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1977
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1978
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1979
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1980
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1981
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1982
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1983
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1984
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1985
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1986
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1987
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1988
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1989
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1990
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1991
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1992
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1993
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1994
0.00
0.00
0.00
0.00
0.00
0.00
M
0.00
0.00
0.00
0.00
0.00
1995
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1996
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1997
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1998
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1999
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2000
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2001
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2002
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2003
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2004
M
M
M
M
M
M
M
M
M
M
M
M
2005
M
M
M
M
M
M
M
M
M
M
M
M
2006
M
M
M
M
M
M
M
M
M
M
M
M
2007
M
0.00
M
M
M
M
M
M
M
M
M
M
2008
M
M
M
M
M
M
M
M
M
M
M
M
2009
M
M
M
M
M
M
M
M
M
M
M
M
2010
M
M
M
M
M
M
M
M
M
M
M
M
2011
M
M
M
M
M
M
M
0.00
0.00
0.00
0.00
0.00
2012
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2013
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
M
M
M
2014
M
M
M
M
M
M
M
M
M
M
M
M
2015
M
M
M
M
M
M
M
M
M
M
M
M
2016
M
M
M
M
M
0.00
0.00
M
M
M
M
M
2017
M
M
M
M
M
M
0.00
M
M
M
M
M
2018
M
M
M
M
M
M
M
M
M
M
M
M
2019
M
M
M
M
M
M
M
M
M
M
M
M
2020
M
M
M
M
M
M
M
M
M
M
M
M
2021
M
M
M
M
M
M
M
M
M
M
M
M
2022
M
M
M
M
M
M
M
M
M
M
M
M
2023
M
M
M
M
M
M
M
M
M
M
M
M
2024
M
M
M
M
M
M
M
M
M
M
M
M
2025
M
M
M
M
M
M
M
M
M
M
M
M
Average Wind Speed [MPH]
Year
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
1975
M
M
M
M
M
3.7
3.4
4.3
4.1
7.1
4.5
6.0
1976
6.7
7.4
7.8
5.8
5.5
5.1
4.9
6.2
5.3
4.9
6.4
4.7
1977
6.6
6.6
7.8
6.7
4.6
4.6
6.2
4.8
3.0
3.3
4.9
4.4
1978
4.5
5.0
5.6
5.6
4.9
3.3
2.8
2.9
3.1
4.6
3.7
4.2
1979
3.3
4.3
4.1
3.0
2.6
3.7
3.6
3.2
2.3
4.1
4.3
4.2
1980
3.3
4.4
4.5
4.2
3.9
3.4
3.0
2.1
2.1
3.0
2.3
3.5
1981
3.6
4.3
4.0
4.5
3.9
2.3
2.8
2.4
2.4
2.8
3.3
3.6
1982
3.7
3.3
3.9
3.8
2.8
2.0
3.3
4.9
3.0
3.4
3.3
3.7
1983
3.8
4.8
27.4
27.2
29.6
19.5
12.3
1.8
2.9
3.5
3.3
2.9
1984
2.9
3.7
3.8
4.5
3.7
2.4
1.6
1.6
2.0
2.1
2.5
2.6
1985
2.9
3.1
3.6
2.3
2.6
1.4
1.9
2.3
2.6
2.6
2.7
2.5
1986
3.4
3.8
4.4
3.7
2.6
1.9
2.8
2.5
2.1
2.5
3.4
3.1
1987
4.4
5.4
5.4
4.6
4.4
3.2
3.6
3.8
3.6
5.6
4.6
4.0
1988
5.3
4.7
5.9
5.9
5.6
3.5
3.9
3.6
4.0
4.7
4.8
3.8
1989
4.4
6.3
6.4
5.7
5.5
4.4
4.3
4.0
4.3
4.2
4.3
4.0
1990
5.0
5.4
4.9
5.2
4.1
3.3
2.9
3.4
2.7
3.9
4.4
3.6
1991
3.6
4.2
5.8
5.0
4.6
3.2
3.2
3.1
3.3
2.6
3.9
3.2
1992
3.0
4.2
4.7
4.9
3.9
4.5
7.3
6.6
7.0
7.7
7.2
6.4
1993
4.7
5.0
5.4
5.7
5.5
4.1
3.4
4.3
3.9
3.8
2.5
2.0
1994
2.8
4.7
5.2
4.8
3.9
3.4
M
3.0
3.0
3.1
3.2
4.2
1995
4.2
5.5
5.4
4.4
4.5
3.3
3.9
2.8
1.8
3.7
4.2
3.8
1996
4.3
5.7
6.2
5.4
4.8
3.2
3.4
3.6
3.3
4.0
4.6
2.7
1997
3.8
4.8
5.1
3.3
3.3
3.6
3.6
3.8
2.2
4.1
4.1
4.3
1998
5.2
6.5
6.2
6.2
5.8
4.5
3.8
3.7
2.8
3.8
3.2
3.9
1999
5.5
5.1
5.2
5.0
5.2
3.4
4.1
3.3
2.8
3.8
4.5
4.6
2000
4.8
4.5
5.1
5.3
4.1
2.9
4.1
3.6
3.1
3.9
4.5
4.2
2001
4.2
4.8
5.5
4.9
4.3
3.6
3.7
3.9
3.7
5.0
3.9
3.8
2002
4.7
4.5
5.4
4.9
4.9
3.7
3.5
3.9
3.4
3.5
4.7
4.5
2003
4.4
5.3
5.9
5.1
5.3
3.8
3.7
4.3
3.4
3.5
5.3
5.1
2004
5.4
5.8
5.4
5.5
5.7
4.2
4.7
4.4
3.9
4.0
5.2
4.7
2005
5.7
5.7
6.6
5.3
4.5
4.5
4.1
4.2
4.1
4.5
5.1
5.6
2006
5.6
5.6
5.8
5.7
5.0
4.2
4.7
5.0
3.9
5.0
4.9
5.1
2007
5.0
6.2
5.4
6.0
4.3
4.0
4.0
3.9
3.5
4.5
5.2
4.7
2008
5.1
5.3
5.6
5.6
5.0
4.5
3.8
3.5
3.7
5.5
4.7
4.6
2009
4.8
5.8
6.1
5.8
4.8
3.5
3.9
4.2
3.8
4.2
4.9
3.7
2010
4.3
4.9
5.7
5.1
4.8
4.4
3.1
3.9
3.2
4.7
4.4
4.2
2011
5.4
5.5
5.5
5.0
5.2
3.9
3.1
3.6
3.3
4.6
4.0
4.4
2012
5.3
4.7
5.9
6.3
5.8
4.9
4.9
4.8
4.7
4.9
5.3
6.0
2013
5.7
6.5
7.1
6.6
5.9
5.2
4.9
5.1
4.5
5.4
6.0
6.3
2014
6.6
6.6
6.4
7.0
5.9
5.1
5.5
5.2
4.5
5.2
5.0
5.2
2015
6.3
6.2
6.3
5.6
4.7
4.6
4.4
4.7
4.2
5.3
5.5
5.5
2016
4.7
6.1
6.1
5.3
5.1
4.1
5.0
4.6
4.4
6.0
4.8
5.8
2017
5.6
6.4
6.1
5.8
5.0
4.0
4.1
3.5
3.3
5.3
4.9
4.8
2018
5.6
5.7
5.2
5.0
4.8
4.9
6.0
5.0
4.4
4.5
4.4
5.0
2019
5.3
6.2
6.2
6.1
5.1
4.9
4.4
3.6
4.2
5.0
5.7
4.8
2020
5.3
6.0
6.2
5.0
4.5
4.7
3.4
4.2
3.6
5.3
6.6
4.6
2021
4.9
5.8
5.9
5.7
5.1
3.7
4.8
4.2
4.1
4.5
4.8
5.2
2022
4.8
5.7
6.2
5.3
5.6
4.6
5.5
4.8
4.3
4.7
5.0
5.6
2023
5.5
5.9
5.6
5.5
5.2
4.9
4.8
4.9
4.1
5.3
5.8
5.3
2024
5.7
6.1
5.6
6.2
5.9
5.2
4.3
3.9
3.6
5.7
4.4
5.3
2025
5.0
5.4
5.6
6.1
5.6
4.3
4.7
M
M
M
M
M
Average Daily High Temperature [F]
Year
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
1975
M
M
M
M
M
80.40
76.48
78.45
76.83
78.33
79.86
76.10
1976
75.94
77.76
85.13
84.30
82.87
78.67
79.16
78.50
79.66
78.90
76.38
78.40
1977
80.03
79.26
85.46
83.17
84.74
80.83
80.39
81.13
81.43
81.06
79.87
79.35
1978
79.48
80.43
83.16
88.40
85.32
79.00
79.06
80.74
78.41
77.82
81.74
79.97
1979
78.68
80.85
84.81
86.25
85.73
80.48
81.10
78.53
77.97
81.81
76.77
78.34
1980
79.19
80.90
86.84
86.04
87.45
81.73
81.10
79.27
78.30
81.03
79.57
78.16
1981
77.74
81.39
86.55
87.20
90.55
81.73
80.45
80.45
81.47
81.26
81.77
81.47
1982
83.94
84.04
87.55
90.45
87.03
84.43
82.29
85.48
82.69
83.58
84.19
80.52
1983
78.45
78.89
75.32
89.34
90.80
86.70
81.07
82.45
79.43
82.00
83.77
81.13
1984
80.03
83.59
87.55
92.33
84.55
80.90
77.74
78.55
76.43
82.39
79.60
78.13
1985
78.10
80.14
83.45
84.60
84.83
79.57
78.48
78.61
80.40
80.00
80.03
78.87
1986
74.37
80.96
80.43
86.48
84.48
79.55
77.26
80.13
79.30
80.48
80.70
79.00
1987
78.38
83.89
85.00
84.32
85.81
80.07
77.90
79.13
81.40
80.32
81.80
81.74
1988
79.10
83.55
85.58
88.47
89.16
80.50
80.81
77.39
78.33
79.61
81.23
77.93
1989
78.90
77.81
80.41
84.69
84.71
79.57
79.55
79.23
76.07
79.19
81.27
79.69
1990
79.16
81.43
83.90
85.67
84.87
80.17
79.42
80.23
79.67
80.48
79.57
79.87
1991
81.39
84.14
91.13
92.87
88.13
83.07
80.42
81.16
78.20
79.39
79.83
79.52
1992
79.68
82.76
88.48
86.57
85.13
83.20
81.19
80.52
79.10
81.74
81.77
81.94
1993
81.97
85.04
87.03
90.33
89.97
84.33
81.00
80.48
80.10
82.39
81.70
81.90
1994
82.13
84.96
90.00
89.10
86.32
81.70
M
77.00
79.30
82.74
83.67
79.90
1995
79.55
83.14
85.42
86.83
85.00
82.50
77.90
77.06
78.07
79.16
80.67
79.10
1996
80.65
83.83
85.45
86.80
86.10
79.87
79.90
77.26
81.57
80.71
79.27
78.71
1997
78.23
81.29
86.00
86.17
82.87
81.73
79.74
81.19
76.03
77.84
78.97
79.68
1998
80.29
85.89
87.32
91.62
93.90
87.67
80.71
82.71
80.03
78.68
80.43
80.48
1999
80.19
83.14
86.48
90.10
87.90
82.53
78.71
79.55
76.30
77.10
76.40
76.58
2000
77.17
80.46
85.97
85.06
79.95
77.07
81.16
79.08
77.67
79.90
81.43
77.47
2001
80.65
81.76
84.64
87.35
86.23
82.22
80.97
82.63
79.49
83.14
81.95
84.01
2002
83.45
82.14
89.59
91.99
89.52
82.92
81.79
83.33
82.24
83.69
81.21
82.35
2003
83.53
86.24
89.43
92.25
89.56
80.99
82.29
83.13
81.99
81.38
81.07
80.57
2004
M
86.00
M
M
M
76.82
76.34
76.10
74.70
75.97
63.10
62.48
2005
79.26
84.20
89.14
91.76
85.83
85.40
81.47
M
65.30
80.08
80.72
80.72
2006
79.96
65.88
69.10
72.98
79.80
75.37
72.62
72.68
71.00
67.20
61.38
67.92
2007
81.53
85.89
86.58
88.16
86.70
84.50
80.02
78.45
79.88
79.50
72.68
59.84
2008
60.18
63.53
65.58
71.79
70.89
72.68
69.63
69.51
71.41
66.62
49.67
49.36
2009
66.32
68.67
69.92
79.51
76.34
75.40
75.26
75.55
74.90
74.21
66.13
66.86
2010
62.89
67.42
69.44
75.44
77.00
73.82
73.28
76.83
76.64
79.90
79.16
77.75
2011
78.61
77.36
76.07
80.79
81.66
74.35
72.35
75.55
78.80
78.74
80.18
80.60
2012
79.26
82.03
83.50
84.26
84.37
79.92
78.34
78.34
78.44
78.57
77.24
79.32
2013
78.22
83.81
83.15
88.94
85.30
81.32
79.67
78.86
77.00
77.93
77.18
78.16
2014
77.23
82.98
85.71
87.44
82.11
78.92
79.50
80.02
77.24
76.25
76.46
77.00
2015
77.58
80.47
80.95
86.24
82.92
79.70
80.60
81.59
79.46
80.19
79.88
80.31
2016
78.05
79.11
83.91
87.74
87.74
79.10
79.44
80.31
78.74
79.38
79.52
79.85
2017
80.14
82.53
83.79
85.46
86.29
79.04
79.15
79.61
77.36
77.06
78.50
77.64
2018
74.39
81.05
85.25
84.92
84.61
79.64
81.12
79.38
80.00
78.39
79.46
77.23
2019
78.05
84.97
85.65
87.38
86.99
81.32
80.72
81.94
80.30
78.74
79.22
79.55
2020
79.09
82.59
87.16
89.84
85.83
82.33
79.93
79.22
78.56
78.99
78.80
77.58
2021
79.50
82.79
85.30
87.67
85.48
77.24
79.38
78.51
77.90
79.38
77.78
80.66
2022
78.86
80.21
85.19
87.50
86.23
79.10
81.41
79.85
75.20
77.81
79.76
77.17
2023
79.38
81.18
86.12
86.84
85.30
84.62
80.48
81.24
82.40
80.95
80.72
77.35
2024
81.82
85.26
90.06
90.86
94.42
86.24
80.83
80.72
79.52
76.83
81.74
78.63
2025
80.37
83.30
89.08
88.40
88.15
78.38
81.57
M
M
M
M
M
Average Daily Low Temperature [F]
Year
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
1975
M
M
M
M
M
58.60
58.42
57.03
58.00
58.63
49.72
48.03
1976
46.84
48.93
55.26
58.10
59.97
61.97
60.10
58.47
61.48
58.00
55.45
50.17
1977
49.58
53.93
57.21
58.14
64.00
60.97
59.97
60.61
60.47
58.77
53.17
50.84
1978
49.13
52.04
54.87
59.43
63.84
62.40
61.06
59.42
60.52
59.14
55.22
52.13
1979
49.68
52.38
57.65
61.96
62.83
61.86
61.90
61.27
61.03
55.48
56.23
54.45
1980
50.32
51.52
56.84
60.96
63.42
62.63
62.29
61.77
61.33
58.90
53.30
50.06
1981
48.52
52.79
58.74
61.40
63.61
65.07
63.84
63.35
61.87
61.00
53.17
54.53
1982
50.68
54.44
58.23
63.90
65.26
63.23
62.55
61.71
63.17
61.39
58.04
52.61
1983
48.86
52.21
59.86
68.83
75.63
70.07
67.57
63.23
63.77
59.13
59.03
55.48
1984
53.65
56.69
59.62
63.93
63.58
64.63
59.42
59.84
60.67
56.65
48.07
49.48
1985
49.84
50.21
56.45
57.50
61.77
62.13
60.26
60.81
58.64
58.52
52.10
50.90
1986
47.89
51.14
50.33
58.03
63.06
60.21
57.23
57.68
59.27
57.06
53.23
48.87
1987
49.15
55.26
54.45
56.04
58.58
62.79
60.42
59.42
58.70
50.74
49.07
50.06
1988
48.60
51.72
54.29
58.80
60.52
62.10
61.68
62.23
60.00
55.06
49.10
47.80
1989
45.97
52.15
53.52
54.79
59.03
60.90
62.26
59.42
60.33
53.94
51.40
51.38
1990
48.00
52.54
55.39
57.53
61.71
61.07
59.74
58.74
58.97
54.97
50.47
49.42
1991
49.77
50.79
54.63
59.17
62.67
62.23
60.06
58.26
60.20
58.48
51.30
50.48
1992
51.55
50.76
57.68
58.37
61.52
63.27
61.26
61.90
60.27
57.84
54.30
48.39
1993
50.00
52.89
55.26
59.83
62.26
64.33
61.61
60.61
62.10
57.87
53.40
46.42
1994
49.55
51.82
54.90
59.53
59.97
59.80
M
62.00
56.73
56.84
52.53
51.94
1995
51.42
51.96
55.23
59.90
61.13
62.70
59.97
62.68
59.10
55.23
51.57
50.84
1996
42.94
47.76
51.06
57.73
61.00
63.13
60.90
58.52
59.27
55.32
49.13
46.55
1997
46.94
50.61
56.19
56.77
57.35
60.63
59.26
57.68
60.50
57.52
55.97
51.19
1998
47.39
45.18
53.19
60.38
60.68
63.67
62.42
61.55
64.30
59.84
55.70
48.74
1999
47.58
49.07
53.39
58.10
59.87
63.27
60.84
59.68
60.53
55.65
49.23
45.94
2000
48.23
55.08
53.81
57.43
61.41
61.37
58.65
59.88
59.93
54.77
54.87
48.15
2001
47.86
48.18
52.96
48.12
56.73
56.89
59.57
58.63
60.12
54.57
45.61
50.86
2002
48.65
46.79
49.59
51.07
46.90
59.50
58.58
53.31
59.93
52.88
51.32
49.66
2003
46.28
50.78
49.68
45.81
46.66
64.61
56.10
58.85
58.06
58.04
49.61
45.45
2004
M
68.00
M
M
M
75.20
71.03
72.99
73.10
70.19
52.61
51.49
2005
48.61
53.34
57.95
61.76
62.31
65.12
62.54
M
63.50
57.72
50.78
51.92
2006
49.94
50.26
55.81
68.42
75.00
73.14
69.10
70.16
69.20
66.60
54.89
55.48
2007
52.32
53.86
55.98
60.56
62.02
63.32
61.09
61.55
59.66
57.90
52.88
51.02
2008
50.37
55.67
57.51
60.37
63.56
64.94
62.77
63.12
65.58
60.80
49.67
49.36
2009
52.70
54.47
56.00
62.34
65.66
65.07
64.88
62.54
62.78
63.47
58.57
55.16
2010
54.35
54.89
56.30
61.76
64.69
65.24
66.78
62.89
62.06
54.24
51.68
44.72
2011
51.74
63.39
63.59
64.72
67.35
67.91
64.47
66.20
60.80
54.88
52.16
47.62
2012
50.29
54.03
53.77
54.26
59.93
60.68
59.12
59.87
58.82
54.65
47.30
45.88
2013
48.66
49.61
51.68
57.26
59.23
61.34
59.75
58.88
61.64
58.01
53.72
50.00
2014
46.11
50.58
54.82
57.56
60.68
61.76
58.59
58.07
60.38
56.91
52.16
48.20
2015
47.04
48.84
53.95
59.48
60.74
60.26
58.88
58.77
60.80
57.32
56.18
51.63
2016
50.64
47.89
55.57
57.86
63.12
61.40
59.75
60.16
59.60
55.28
50.84
52.73
2017
46.52
51.74
53.89
56.48
63.06
61.70
60.45
59.46
61.52
56.97
47.90
46.17
2018
45.30
51.29
54.82
57.26
60.80
61.34
57.55
59.12
59.66
58.54
53.00
49.07
2019
47.10
52.70
54.24
56.30
60.45
61.46
58.83
58.88
58.16
59.12
53.30
48.26
2020
49.42
51.43
54.24
60.62
60.16
62.25
61.60
60.44
61.46
55.40
55.88
51.16
2021
51.86
49.29
54.30
56.93
60.97
61.16
60.97
60.05
60.44
58.65
48.32
48.26
2022
50.00
50.19
52.26
57.62
59.64
60.32
58.88
59.87
60.44
56.62
54.08
49.54
2023
48.55
49.61
54.41
57.32
60.05
61.52
60.34
60.45
57.56
58.30
55.52
48.66
2024
51.45
49.07
55.63
60.32
63.94
64.40
62.37
60.34
62.54
57.95
51.14
47.33
2025
48.95
52.19
54.94
55.04
61.32
63.32
59.15
M
M
M
M
M
Average Daily Temperature (high+low)/2 [F]
Year
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
1975
M
M
M
M
M
69.50
67.45
67.74
67.42
68.48
64.79
62.06
1976
61.39
63.34
70.19
71.20
71.42
70.32
69.63
68.48
70.57
68.45
65.91
64.28
1977
64.81
66.59
71.34
70.66
74.37
70.90
70.18
70.87
70.95
69.92
66.52
65.10
1978
64.31
66.23
69.02
73.92
74.58
70.70
70.06
70.08
69.47
68.48
68.48
66.05
1979
64.18
66.62
71.23
74.11
74.28
71.17
71.50
69.90
69.50
68.65
66.50
66.40
1980
64.76
66.21
71.84
73.50
75.44
72.18
71.69
70.52
69.82
69.97
66.43
64.11
1981
63.13
67.09
72.65
74.30
77.08
73.40
72.15
71.90
71.67
71.13
67.47
68.00
1982
67.31
69.24
72.89
77.17
76.15
73.83
72.42
73.60
72.93
72.48
71.12
66.56
1983
63.66
65.55
67.59
79.09
83.22
78.38
74.32
72.84
71.60
70.56
71.40
68.31
1984
66.84
70.14
73.59
78.13
74.06
72.77
68.58
69.19
68.55
69.52
63.83
63.81
1985
63.97
65.18
69.95
71.05
73.30
70.85
69.37
69.71
69.52
69.26
66.07
64.89
1986
61.13
66.05
65.38
72.26
73.77
69.88
67.24
68.90
69.28
68.77
66.97
63.94
1987
63.77
69.57
69.73
70.18
72.19
71.43
69.16
69.27
70.05
65.53
65.43
65.90
1988
63.85
67.64
69.94
73.63
74.84
71.30
71.24
69.81
69.17
67.34
65.17
62.87
1989
62.44
64.98
66.96
69.74
71.87
70.23
70.90
69.32
68.20
66.56
66.33
65.54
1990
63.58
66.98
69.65
71.60
73.29
70.62
69.58
69.48
69.32
67.73
65.02
64.65
1991
65.58
67.46
72.88
76.02
75.40
72.65
70.24
69.71
69.20
68.94
65.57
65.00
1992
65.61
66.76
73.08
72.47
73.32
73.23
71.23
71.21
69.68
69.79
68.03
65.16
1993
65.98
68.96
71.15
75.08
76.11
74.33
71.31
70.55
71.10
70.13
67.55
64.16
1994
65.84
68.39
72.45
74.32
73.15
70.75
M
69.50
68.02
69.79
68.10
65.92
1995
65.48
67.55
70.32
73.37
73.06
72.60
68.94
69.87
68.58
67.19
66.12
64.97
1996
61.79
65.79
68.26
72.27
73.55
71.50
70.40
67.89
70.42
68.02
64.20
62.63
1997
62.58
65.95
71.10
71.47
70.11
71.18
69.50
69.44
68.27
67.68
67.47
65.44
1998
63.84
65.54
70.26
76.00
77.29
75.67
71.56
72.13
72.17
69.26
68.07
64.61
1999
63.89
66.11
69.94
74.10
73.89
72.90
69.77
69.61
68.42
66.37
62.82
61.26
2000
62.70
67.77
69.89
71.24
70.68
69.22
69.90
69.48
68.80
67.34
68.15
62.81
2001
64.25
64.97
68.80
67.74
71.48
69.56
70.27
70.63
69.81
68.85
63.78
67.44
2002
66.05
64.46
69.59
71.53
68.21
71.21
70.19
68.32
71.09
68.29
66.27
66.00
2003
65.22
68.51
69.34
68.17
67.62
72.87
68.98
70.55
69.73
69.72
64.87
62.97
2004
M
77.00
M
M
M
76.01
73.68
74.55
73.90
73.08
57.85
56.98
2005
63.94
68.77
73.55
76.76
74.07
75.26
72.01
M
64.40
68.90
65.75
66.32
2006
64.95
58.07
62.45
70.70
77.40
74.26
70.86
71.42
70.10
66.90
58.13
61.70
2007
66.93
69.88
71.28
74.36
74.36
73.91
70.55
70.00
69.77
68.70
62.78
55.43
2008
55.28
59.60
61.54
66.08
67.23
68.81
66.20
66.32
68.50
63.71
49.67
49.36
2009
59.51
61.57
62.96
70.92
71.00
70.23
70.07
69.05
68.84
68.84
62.35
61.01
2010
58.62
61.15
62.87
68.60
70.85
69.53
70.03
69.86
69.35
67.07
65.42
61.24
2011
65.18
70.38
69.83
72.76
74.50
71.13
68.41
70.87
69.80
66.81
66.17
64.16
2012
64.78
68.03
68.64
69.26
72.15
70.27
68.73
69.10
68.63
66.61
62.27
62.60
2013
63.44
66.71
67.42
73.10
72.27
71.33
69.71
68.87
69.32
67.97
65.45
64.08
2014
61.67
66.78
70.26
72.50
71.40
70.34
69.05
69.05
68.81
66.58
64.31
62.60
2015
62.31
64.66
67.45
72.86
71.83
69.98
69.74
70.18
70.13
68.75
68.03
65.97
2016
64.34
63.50
69.74
72.80
75.43
70.25
69.60
70.24
69.17
67.33
65.18
66.29
2017
63.33
67.13
68.84
70.97
74.68
70.37
69.80
69.54
69.44
67.01
63.20
61.90
2018
59.84
66.17
70.03
71.09
72.70
70.49
69.34
69.25
69.83
68.46
66.23
63.15
2019
62.57
68.84
69.95
71.84
73.72
71.39
69.77
70.41
69.23
68.93
66.26
63.91
2020
64.25
67.01
70.70
75.23
72.99
72.29
70.77
69.83
70.01
67.19
67.34
64.37
2021
65.68
66.04
69.80
72.30
73.23
69.20
70.18
69.28
69.17
69.02
63.05
64.46
2022
64.43
65.20
68.73
72.56
72.94
69.71
70.15
69.86
67.82
67.22
66.92
63.35
2023
63.96
65.40
70.26
72.08
72.67
73.07
70.41
70.85
69.98
69.63
68.12
63.01
2024
66.64
67.16
72.85
75.59
79.18
75.32
71.60
70.53
71.03
67.39
66.44
62.98
2025
64.66
67.74
72.01
71.72
74.74
70.85
70.36
M
M
M
M
M
Average Relative Humidity [%]
This value is computed via a simple average of available observations weighted
by the duration between observations.
