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
1974
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1975
M
0.00
0.00
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
M
0.00
M
M
M
M
1979
M
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
0.04
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
0.00
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
0.01
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
0.03
0.21
0.00
0.00
0.00
2003
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.46
0.79
0.96
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
1974
4.2
8.6
2.7
M
M
M
M
M
M
M
M
M
1975
M
M
M
M
M
M
M
M
M
M
M
M
1976
M
M
2.7
7.0
3.1
5.1
2.3
2.4
1.9
M
M
M
1977
M
M
M
M
M
M
M
M
M
M
M
M
1978
M
M
M
M
M
M
M
M
M
M
M
M
1979
M
M
M
M
M
M
M
M
M
M
M
M
1980
M
M
M
M
M
M
M
M
M
M
M
M
1981
M
M
M
M
M
M
M
M
M
M
M
M
1982
M
M
M
M
M
M
M
M
M
M
M
M
1983
M
M
M
M
M
M
7.0
4.0
4.6
3.8
4.1
4.7
1984
5.8
6.5
6.3
6.2
5.5
2.6
3.9
4.5
7.1
3.6
4.5
5.6
1985
8.0
6.6
6.1
6.2
3.9
4.0
4.5
4.4
4.1
4.7
4.2
6.4
1986
6.2
5.4
6.6
4.1
4.0
3.3
4.2
3.8
4.4
4.0
4.4
6.0
1987
7.7
7.1
9.9
6.8
6.1
5.9
6.4
4.2
4.3
5.3
6.0
6.0
1988
7.0
6.3
8.3
6.7
7.5
7.2
5.0
6.1
4.3
3.7
3.2
4.9
1989
5.0
6.1
7.4
5.4
4.7
5.8
5.0
2.8
5.6
2.7
2.5
5.8
1990
5.2
6.3
5.1
4.2
4.4
5.6
3.6
3.5
3.4
3.4
4.1
3.9
1991
4.9
5.3
6.4
4.6
2.4
3.6
2.8
3.8
4.4
4.3
3.7
3.0
1992
4.7
5.0
4.8
4.9
3.5
4.3
5.7
4.7
6.0
4.7
5.1
4.2
1993
3.2
4.1
4.5
3.4
4.0
3.7
2.1
2.6
3.4
1.9
1.5
1.9
1994
2.9
2.8
4.2
3.6
1.9
2.5
M
2.4
2.9
1.9
1.6
1.8
1995
2.2
2.8
3.6
3.9
3.2
3.0
3.6
2.9
2.1
2.7
2.5
2.9
1996
2.8
3.0
4.3
3.7
2.4
3.2
3.0
2.7
2.5
2.6
2.4
2.6
1997
2.5
3.7
3.2
4.1
2.8
2.3
2.2
2.5
3.5
2.9
2.2
5.0
1998
2.8
5.2
4.5
4.0
2.5
2.0
3.3
2.8
2.1
3.1
2.2
2.5
1999
2.9
2.0
4.1
3.7
3.3
3.0
2.7
2.2
4.4
4.0
4.2
3.4
2000
3.4
3.1
3.7
3.6
3.2
2.9
4.1
3.9
5.0
2.4
3.3
1.8
2001
3.9
2.9
4.8
1.8
2.8
3.9
1.8
2.5
2.3
2.8
4.1
2.6
2002
5.4
3.5
2.6
2.7
2.5
2.4
2.9
2.9
2.1
1.9
3.4
2.6
2003
3.1
4.7
6.3
3.9
4.2
5.3
3.2
2.4
2.5
2.9
3.8
4.1
2004
5.2
6.1
5.0
5.8
5.2
3.3
4.0
2.5
2.8
2.7
4.4
4.9
2005
4.2
5.1
6.0
5.1
5.0
5.2
4.1
4.0
4.5
4.9
5.2
4.4
2006
5.1
4.2
5.3
5.3
4.7
5.9
5.4
4.4
3.6
3.7
4.4
5.2
2007
5.0
5.5
5.1
5.8
4.1
4.1
3.1
5.4
4.4
5.1
5.0
3.5
2008
5.2
4.7
5.4
4.2
4.5
3.4
2.7
1.5
3.9
4.3
4.2
3.2
2009
3.3
4.3
4.4
4.4
3.7
2.9
3.7
3.7
2.5
3.1
4.2
4.4
2010
4.9
4.6
5.5
4.9
3.6
3.7
3.8
3.6
4.0
4.1
4.0
3.9
2011
4.4
5.5
3.5
5.4
6.4
6.8
7.0
5.7
6.3
6.4
6.6
6.5
2012
7.2
7.4
6.8
7.5
7.4
6.9
5.5
6.6
6.1
6.5
6.8
6.9
2013
7.2
8.4
8.1
7.8
6.7
6.9
5.3
6.5
6.2
5.2
6.8
6.9
2014
7.0
6.6
8.4
7.4
7.3
6.5
6.4
6.3
6.4
6.5
7.0
7.1
2015
7.6
7.1
7.5
7.4
6.7
5.8
5.7
5.8
5.7
7.4
6.0
7.0
2016
7.8
8.3
8.5
8.0
7.1
7.2
5.9
5.0
6.0
7.0
7.3
7.1
2017
7.8
7.5
7.3
7.1
7.1
7.2
5.8
6.1
5.9
7.3
7.0
7.0
2018
7.6
6.5
6.7
6.8
6.8
6.7
5.5
5.8
4.8
6.2
5.5
7.2
2019
7.1
7.5
6.8
7.8
7.6
7.1
5.5
5.5
6.2
6.1
6.0
6.4
2020
7.4
7.6
7.1
7.7
6.8
7.0
5.9
6.3
6.3
6.6
7.3
7.4
2021
7.1
7.8
7.5
8.3
7.3
7.4
5.1
5.5
4.4
6.0
6.5
5.7
2022
6.5
10.8
8.9
7.3
6.9
7.7
5.8
5.5
7.4
6.1
5.9
6.7
2023
6.9
7.2
6.9
7.7
7.3
7.8
6.7
6.9
5.6
6.7
6.7
6.2
2024
7.1
6.6
8.2
7.8
7.0
7.2
5.5
5.6
5.6
7.2
5.6
5.9
2025
7.2
6.0
7.3
8.1
6.6
7.0
5.4
6.1
M
M
M
M
Average Daily High Temperature [F]
Year
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
1974
124.00
129.00
73.50
78.25
79.00
79.50
71.83
74.75
73.86
74.00
71.25
67.00
1975
M
73.00
73.00
M
M
79.50
75.80
71.00
74.20
75.00
72.20
74.67
1976
69.46
75.36
79.14
80.19
82.35
81.10
73.09
74.91
73.53
70.90
62.85
64.25
1977
66.40
74.29
79.17
77.60
82.40
83.25
78.40
77.50
74.29
76.20
70.00
69.43
1978
70.20
69.71
75.20
86.00
85.00
79.17
M
72.50
M
M
M
M
1979
M
74.00
79.09
78.09
85.86
83.57
81.00
76.07
75.38
79.82
72.24
66.85
1980
70.29
71.71
80.48
80.87
86.29
85.17
80.63
75.44
77.00
74.75
70.80
67.48
1981
64.10
72.82
74.88
79.42
83.96
82.93
76.17
80.63
75.88
76.53
75.23
70.09
1982
74.33
75.33
82.91
85.00
82.92
86.80
77.40
78.67
76.46
71.55
73.00
65.79
1983
63.89
68.94
75.36
79.62
87.62
84.94
65.61
57.13
58.23
54.61
37.57
47.55
1984
48.48
49.41
59.10
57.23
57.06
63.97
57.77
55.81
65.77
80.42
76.83
72.48
1985
69.68
75.50
81.48
81.07
87.47
80.70
77.13
79.32
79.60
78.38
76.67
72.19
1986
71.60
76.04
77.74
85.52
85.87
78.21
77.87
80.97
79.37
75.45
77.53
72.10
1987
69.35
71.29
74.77
80.90
83.29
84.07
78.61
81.03
82.13
79.13
75.70
74.45
1988
71.58
77.52
76.26
79.50
86.27
81.87
77.45
78.00
78.47
77.35
76.60
73.35
1989
74.39
74.25
75.52
78.33
86.23
84.40
81.06
77.45
76.40
77.81
76.07
67.53
1990
70.65
70.64
76.71
83.00
87.61
84.03
75.90
75.52
75.27
74.13
74.43
71.71
1991
70.43
74.46
78.55
80.60
85.97
84.80
73.90
79.84
74.73
75.03
73.00
69.65
1992
63.29
70.24
77.58
78.83
80.81
84.57
80.68
78.19
78.30
75.61
72.57
74.16
1993
72.71
77.43
78.65
82.53
85.68
85.00
79.45
79.55
77.60
78.71
78.13
75.71
1994
73.55
79.18
82.45
84.00
89.19
83.93
82.04
77.81
78.73
79.90
79.97
77.03
1995
73.90
78.04
83.35
86.00
90.58
87.40
80.48
78.61
78.67
80.84
78.47
73.35
1996
76.55
79.45
79.58
83.00
89.97
84.07
83.81
80.26
78.63
75.90
74.57
73.39
1997
71.03
75.36
77.97
76.43
83.77
86.37
84.03
83.29
82.47
78.03
77.63
72.39
1998
72.84
75.86
83.35
89.00
93.61
90.10
83.90
81.42
78.23
77.74
79.27
76.29
1999
74.16
79.46
82.68
88.13
89.00
85.67
79.06
81.06
79.93
79.52
74.83
72.19
2000
74.96
79.68
83.65
86.25
88.03
79.66
82.58
80.29
83.20
81.68
78.50
72.58
2001
78.01
85.96
80.61
90.13
86.12
85.39
87.52
82.90
81.38
81.46
75.88
79.08
2002
74.45
74.83
81.22
87.97
91.23
86.90
80.51
82.64
80.85
83.90
80.25
77.29
2003
78.01
86.80
84.43
89.36
93.72
86.71
80.78
86.21
82.99
80.28
80.50
75.46
2004
M
78.80
M
M
M
76.10
71.26
72.70
69.98
69.67
55.21
54.69
2005
74.21
74.30
80.48
88.70
89.14
91.58
83.85
M
71.60
80.72
78.02
74.56
2006
73.22
64.60
64.34
69.50
77.99
76.61
71.89
70.78
67.49
61.52
51.61
54.35
2007
70.67
75.46
81.82
83.84
86.93
83.36
77.99
79.32
79.88
79.55
76.40
76.30
2008
73.92
78.06
78.16
85.64
85.65
82.58
76.13
76.01
74.96
75.43
46.85
44.39
2009
72.24
79.12
81.88
85.58
86.12
85.34
82.86
82.75
76.94
76.42
72.62
71.43
2010
68.81
68.32
76.88
82.04
88.61
87.20
76.59
80.02
78.14
78.05
75.32
71.72
2011
70.54
69.22
72.73
78.61
82.91
74.80
72.39
75.78
78.74
77.35
75.02
73.57
2012
69.92
67.75
78.05
82.88
85.83
83.48
77.75
78.57
76.94
80.95
74.66
73.75
2013
69.80
77.96
77.35
84.62
85.59
83.84
76.94
77.99
76.10
76.88
70.94
69.16
2014
68.35
76.74
78.45
83.96
82.40
81.08
77.35
78.86
77.30
76.94
70.46
69.92
2015
70.15
71.66
71.43
78.38
80.48
77.18
74.91
79.61
78.50
76.77
77.18
72.06
2016
69.63
76.01
75.95
81.74
86.81
80.36
77.35
75.72
77.42
78.80
72.14
74.50
2017
74.56
76.55
79.32
83.42
88.55
86.00
78.57
79.55
76.70
76.71
78.38
71.31
2018
71.02
75.52
83.15
83.84
85.94
80.48
78.74
77.99
77.24
76.42
71.90
70.03
2019
72.06
78.41
82.57
83.18
87.16
84.92
80.25
81.12
80.18
78.63
76.46
72.53
2020
71.43
75.39
83.74
87.08
86.41
84.86
81.24
79.61
78.62
81.82
78.32
73.05
2021
74.21
78.99
84.08
85.46
85.54
79.70
76.71
77.70
73.70
76.88
72.56
76.36
2022
74.97
76.55
81.59
85.70
88.21
83.06
81.06
78.45
74.84
75.37
74.24
70.85
2023
71.02
73.91
79.21
80.42
81.35
87.32
79.85
77.35
80.42
74.27
71.78
65.97
2024
74.21
75.26
82.81
86.06
92.45
86.24
78.22
81.35
78.86
79.79
82.16
76.71
2025
74.62
81.05
85.07
86.90
89.25
82.28
78.68
80.69
M
M
M
M
Average Daily Low Temperature [F]
Year
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
1974
43.00
79.36
46.50
49.25
48.00
62.50
57.17
47.50
56.43
49.00
44.50
41.00
1975
M
45.00
34.00
M
M
55.50
57.40
58.00
57.40
49.00
40.20
34.00
1976
42.38
41.73
45.21
51.81
54.43
57.75
55.09
54.74
57.16
52.15
49.38
47.50
1977
47.20
44.71
47.50
48.00
55.80
60.25
60.20
58.50
59.00
51.40
40.75
37.29
1978
41.60
45.00
48.80
52.60
54.80
61.00
M
51.25
M
M
M
M
1979
M
45.50
47.41
47.82
54.33
59.26
60.81
57.87
57.71
48.36
40.76
45.85
1980
40.94
45.00
48.78
50.13
57.17
59.22
59.89
59.44
57.81
52.75
46.53
43.88
1981
40.20
46.06
50.47
52.83
54.83
61.27
59.33
57.95
56.38
53.60
42.92
45.73
1982
41.83
44.25
50.82
54.77
59.54
64.20
59.00
58.83
56.62
53.64
44.77
42.71
1983
44.11
39.38
43.79
46.77
56.69
60.29
38.44
15.94
15.50
12.48
9.13
9.35
1984
8.42
9.79
15.77
15.47
16.65
17.40
15.68
15.48
27.43
51.68
43.03
42.55
1985
41.58
43.43
47.87
50.80
57.40
59.30
56.81
57.26
55.32
53.38
43.73
41.45
1986
38.40
41.43
41.39
53.76
58.06
59.72
57.32
56.32
56.07
52.26
47.33
42.29
1987
41.61
43.86
45.10
49.83
54.61
60.24
59.52
58.03
57.97
49.74
45.17
44.32
1988
40.94
46.41
46.84
52.79
56.27
59.37
59.77
59.10
57.23
48.39
42.53
40.74
1989
43.71
42.89
43.71
50.80
56.06
59.80
58.68
59.06
54.87
48.42
46.50
44.40
1990
43.68
46.00
47.39
51.43
57.42
60.20
58.42
57.90
56.20
52.71
42.80
40.03
1991
41.53
42.39
47.81
52.17
55.10
59.40
58.23
56.39
55.97
48.23
43.83
43.00
1992
43.39
40.72
45.42
48.50
55.29
57.73
56.32
55.45
56.40
51.84
44.03
42.84
1993
40.58
38.89
41.68
48.50
54.52
60.83
58.77
56.26
56.70
50.84
43.97
39.94
1994
37.71
41.21
45.03
48.47
57.26
59.83
60.00
59.11
55.50
52.84
46.10
43.52
1995
39.97
44.68
45.68
48.40
57.68
60.90
59.71
60.65
57.80
46.77
46.60
41.55
1996
35.90
41.55
41.45
47.40
57.58
58.97
58.58
57.90
57.00
51.26
42.00
38.74
1997
34.97
40.82
44.61
47.80
51.90
59.30
58.74
56.06
55.37
48.97
44.57
35.48
1998
33.68
33.61
43.26
46.70
54.48
62.00
59.97
58.29
59.93
54.10
45.43
39.32
1999
34.26
40.71
43.68
50.13
52.87
59.90
56.94
57.39
55.33
47.87
38.14
37.32
2000
39.64
48.23
44.94
52.90
57.46
59.91
56.23
55.25
55.60
52.23
45.83
39.72
2001
42.10
42.71
45.85
53.33
56.05
47.59
50.17
49.47
51.34
45.15
40.14
42.10
2002
37.57
42.60
46.15
50.93
49.82
50.17
56.89
48.94
53.97
43.69
44.53
41.34
2003
41.86
47.56
42.06
49.91
54.13
52.89
54.17
49.23
54.04
45.06
46.02
36.70
2004
M
51.80
M
M
M
72.68
66.29
67.53
67.01
64.01
40.29
40.36
2005
38.39
44.60
41.70
49.10
50.64
56.84
57.66
M
59.00
50.29
41.36
38.33
2006
37.94
40.27
46.40
60.70
71.96
69.41
64.54
66.20
64.91
61.16
42.80
39.57
2007
41.41
39.65
44.66
49.34
53.83
59.12
58.88
56.39
54.38
49.07
42.14
39.55
2008
37.05
39.70
41.17
47.42
54.99
57.08
56.45
57.26
55.22
48.26
40.32
37.54
2009
38.74
39.59
43.15
46.40
54.18
59.60
57.08
56.27
57.14
52.96
41.06
39.26
2010
37.40
40.68
42.86
45.74
52.38
58.82
59.00
56.85
56.30
43.44
38.42
32.93
2011
37.09
53.60
54.93
58.42
64.91
66.20
62.53
64.33
55.04
48.84
43.28
41.58
2012
39.37
44.29
47.10
49.10
56.15
58.22
57.66
57.49
54.68
49.54
45.98
42.22
2013
43.32
43.51
44.66
50.96
56.45
59.72
57.66
56.50
58.58
53.02
48.38
42.74
2014
39.61
42.48
46.05
51.26
56.45
59.36
56.39
55.69
55.94
50.58
43.70
41.46
2015
42.92
43.76
46.98
52.34
53.54
56.78
54.53
56.45
56.84
53.60
50.48
42.92
2016
37.92
40.88
47.79
51.26
56.97
56.54
56.56
58.36
56.12
51.34
48.02
44.02
2017
40.19
42.80
47.74
50.12
56.50
60.68
58.48
59.00
57.38
52.26
44.06
41.52
2018
40.36
47.88
48.61
52.40
57.49
59.30
57.08
56.85
58.58
54.59
45.50
41.29
2019
41.87
45.89
48.26
50.78
56.04
60.50
58.07
58.48
56.96
55.46
50.42
42.16
2020
43.15
45.66
52.44
53.48
55.05
60.26
59.00
58.54
56.12
49.01
45.68
42.74
2021
41.12
42.48
48.55
52.82
56.62
58.94
58.94
57.32
57.02
53.14
44.12
41.46
2022
41.29
43.12
46.17
51.92
56.91
59.48
58.59
57.84
54.32
49.59
44.66
39.37
2023
38.50
42.41
46.11
50.06
53.31
58.34
57.66
56.97
55.40
52.67
47.12
44.25
2024
43.96
45.34
48.14
52.82
60.10
62.48
60.80
58.01
58.88
49.94
47.54
42.45
2025
43.26
45.69
44.83
50.06
57.08
60.56
57.37
56.43
M
M
M
M
Average Daily Temperature (high+low)/2 [F]
Year
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
1974
83.50
103.82
60.00
63.75
63.50
71.00
64.50
61.12
65.14
61.50
57.88
54.00
1975
M
59.00
53.50
M
M
67.50
66.60
64.50
65.80
62.00
56.20
54.33
1976
55.92
58.55
62.18
66.00
68.39
69.42
64.09
64.83
65.34
61.52
56.12
55.88
1977
56.80
59.50
63.33
62.80
69.10
71.75
69.30
68.00
66.64
63.80
55.38
53.36
1978
55.90
57.36
62.00
69.30
69.90
70.08
M
61.88
M
M
M
M
1979
M
59.75
63.25
62.95
70.10
71.41
70.91
66.97
66.55
64.09
56.50
56.35
1980
55.62
58.35
64.63
65.50
71.73
72.19
70.26
67.44
67.40
63.75
58.67
55.68
1981
52.15
59.44
62.68
66.12
69.39
72.10
67.75
69.29
66.12
65.07
59.08
57.91
1982
58.08
59.79
66.86
69.88
71.23
75.50
68.20
68.75
66.54
62.59
58.88
54.25
1983
54.00
54.16
59.57
63.19
72.16
72.62
52.03
36.53
36.87
33.55
23.35
28.45
1984
28.45
29.60
37.44
36.35
36.85
40.68
36.73
35.65
46.60
66.05
59.93
57.52
1985
55.63
59.46
64.68
65.93
72.43
70.00
66.97
68.29
67.46
65.88
60.20
56.82
1986
55.00
58.73
59.56
69.64
71.97
68.97
67.60
68.65
67.72
63.85
62.43
57.19
1987
55.48
57.57
59.94
65.36
68.95
72.16
69.06
69.53
70.05
64.44
60.43
59.39
1988
56.26
61.97
61.55
66.14
71.27
70.62
68.61
68.55
67.85
62.87
59.57
57.05
1989
59.05
58.57
59.61
64.57
71.15
72.10
69.87
68.26
65.63
63.11
61.28
55.97
1990
57.16
58.32
62.05
67.22
72.52
72.12
67.16
66.71
65.73
63.42
58.62
55.87
1991
55.98
58.43
63.18
66.38
70.53
72.10
66.06
68.11
65.35
61.63
58.42
56.32
1992
53.34
55.48
61.50
63.67
68.05
71.15
68.50
66.82
67.35
63.73
58.30
58.50
1993
56.65
58.16
60.16
65.52
70.10
72.92
69.11
67.90
67.15
64.77
61.05
57.82
1994
55.63
60.20
63.74
66.23
73.23
71.88
71.02
68.46
67.12
66.37
63.03
60.27
1995
56.94
61.36
64.52
67.20
74.13
74.15
70.10
69.63
68.23
63.81
62.53
57.45
1996
56.23
60.50
60.52
65.20
73.77
71.52
71.19
69.08
67.82
63.58
58.28
56.06
1997
53.00
58.09
61.29
62.12
67.84
72.83
71.39
69.68
68.92
63.50
61.10
53.94
1998
53.26
54.73
63.31
67.85
74.05
76.05
71.94
69.85
69.08
65.92
62.35
57.81
1999
54.21
60.09
63.18
69.13
70.94
72.78
68.00
69.23
67.63
63.69
56.48
54.76
2000
57.30
63.96
64.29
69.57
72.74
69.78
69.40
67.77
69.40
66.95
62.17
56.15
2001
60.06
64.34
63.23
71.73
71.96
66.49
68.85
66.18
66.36
63.30
58.01
60.59
2002
56.01
58.71
63.69
69.45
70.53
68.53
68.70
65.79
67.41
63.79
62.39
59.32
2003
59.93
67.18
63.08
69.90
74.27
70.60
66.79
67.19
68.27
62.28
63.19
55.98
2004
M
65.30
M
M
M
74.39
68.77
70.11
68.49
66.84
47.75
47.52
2005
56.30
59.45
61.09
68.90
69.89
74.21
70.76
M
65.30
65.50
59.69
56.45
2006
55.58
52.43
55.37
65.10
74.97
73.01
68.22
68.49
66.20
61.34
47.21
46.96
2007
56.04
57.56
63.24
66.59
70.38
71.24
68.44
67.85
67.13
64.31
59.27
57.93
2008
55.49
58.88
59.67
66.53
70.32
69.83
66.29
66.64
65.09
61.85
43.59
40.97
2009
55.49
59.35
62.51
65.99
70.15
72.47
69.97
69.51
67.04
64.69
56.84
55.34
2010
53.11
54.50
59.87
63.89
70.50
73.01
67.80
68.44
67.22
60.74
56.87
52.32
2011
53.82
61.41
63.83
68.51
73.91
70.50
67.46
70.05
66.89
63.09
59.15
57.58
2012
54.65
56.02
62.57
65.99
70.99
70.85
67.71
68.03
65.81
65.24
60.32
57.98
2013
56.56
60.74
61.00
67.79
71.02
71.78
67.30
67.25
67.34
64.95
59.66
55.95
2014
53.98
59.61
62.25
67.61
69.42
70.22
66.87
67.27
66.62
63.76
57.08
55.69
2015
56.53
57.71
59.20
65.36
67.01
66.98
64.72
68.03
67.67
65.18
63.83
57.49
2016
53.77
58.44
61.87
66.50
71.89
68.45
66.95
67.04
66.77
65.07
60.08
59.26
2017
57.37
59.68
63.53
66.77
72.53
73.34
68.52
69.28
67.04
64.49
61.22
56.42
2018
55.69
61.70
65.88
68.12
71.72
69.89
67.91
67.42
67.91
65.50
58.70
55.66
2019
56.97
62.15
65.42
66.98
71.60
72.71
69.16
69.80
68.57
67.04
63.44
57.35
2020
57.29
60.52
68.09
70.28
70.73
72.56
70.12
69.07
67.37
65.42
62.00
57.90
2021
57.66
60.74
66.32
69.14
71.08
69.32
67.83
67.51
65.36
65.01
58.34
58.91
2022
58.13
59.84
63.88
68.81
72.56
71.27
69.83
68.15
64.58
62.48
59.45
55.11
2023
54.76
58.16
62.66
65.24
67.33
72.83
68.75
67.16
67.91
63.47
59.45
55.11
2024
59.09
60.30
65.47
69.44
76.27
74.36
69.51
69.68
68.87
64.86
64.85
59.58
2025
58.94
63.37
64.95
68.48
73.17
71.42
68.03
68.56
M
M
M
M
Average Relative Humidity [%]
This value is computed via a simple average of available observations weighted
by the duration between observations.