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
1973
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
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
0.00
0.00
0.00
0.00
0.00
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
M
M
M
M
M
M
M
M
M
M
M
M
1991
M
M
M
M
M
M
M
M
M
M
M
M
1992
M
M
M
M
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
M
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
M
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
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2005
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2006
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
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
0.00
0.00
0.00
0.00
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
1973
1.0
1.2
0.8
0.9
0.8
0.6
0.9
1.3
1.5
0.1
1.4
1.0
1974
0.9
0.5
1.0
1.0
0.4
0.5
1.3
1.5
1.0
1.5
1.5
0.7
1975
0.5
0.1
1.6
1.9
1.8
1.1
1.6
1.7
2.3
2.9
1.6
1.4
1976
2.4
2.9
1.9
1.2
1.2
1.4
1.7
1.9
2.5
2.1
1.6
0.8
1977
M
0.7
1.8
1.2
1.4
1.5
1.3
1.5
1.5
2.2
1.3
1.5
1978
1.6
1.3
0.9
1.3
0.2
0.9
1.1
1.5
M
M
1.1
1.5
1979
2.2
1.2
1.6
0.6
1.7
1.4
1.9
3.1
2.8
2.1
2.7
1.1
1980
0.0
0.7
M
0.0
M
M
3.4
1.0
M
3.0
M
1.2
1981
0.0
M
M
0.5
M
M
M
M
M
M
M
M
1982
M
M
M
3.0
M
M
M
M
M
M
M
M
1983
M
M
M
2.3
M
2.1
M
M
M
M
M
M
1984
M
M
M
M
M
M
M
1.6
M
M
M
M
1985
M
M
M
M
M
M
M
M
M
M
M
M
1986
M
M
M
M
3.4
M
M
M
M
M
3.2
5.0
1987
3.2
3.1
3.2
3.6
3.1
2.8
4.1
4.0
5.0
4.6
3.4
1.4
1988
4.0
1.9
M
M
3.3
M
M
M
M
M
M
M
1989
M
M
M
M
M
M
M
M
M
4.9
M
M
1990
M
M
M
M
M
M
M
M
M
M
M
M
1991
M
M
M
M
M
M
M
M
M
M
M
M
1992
M
M
M
M
2.5
3.7
3.0
4.2
5.5
3.5
2.4
3.6
1993
4.3
2.3
3.5
2.1
M
3.7
9.2
9.0
6.8
4.6
4.1
2.7
1994
3.0
4.0
2.9
3.3
3.9
3.2
4.8
4.4
4.2
4.2
4.1
4.1
1995
4.3
3.7
3.7
4.2
3.5
4.1
4.7
4.1
5.9
8.0
M
3.8
1996
4.8
8.5
5.7
8.5
5.2
4.0
4.2
5.2
5.5
5.1
3.6
3.8
1997
3.3
3.5
4.4
3.8
5.0
4.7
5.2
5.5
6.5
5.4
M
4.1
1998
4.8
4.2
4.0
3.1
2.4
3.6
4.3
5.4
6.3
5.4
4.6
4.6
1999
4.4
4.4
4.2
4.2
3.7
3.6
3.8
4.5
5.9
4.6
4.7
4.3
2000
4.3
4.4
4.0
4.0
3.7
4.7
5.5
5.2
5.4
5.6
6.3
6.3
2001
5.0
4.7
4.0
4.2
4.9
4.9
5.9
6.2
7.0
6.5
6.2
6.2
2002
6.2
5.2
5.1
4.5
5.0
5.2
5.6
5.0
6.2
6.0
4.8
5.3
2003
4.8
4.8
5.0
4.3
3.9
3.4
3.9
5.1
5.8
5.0
3.5
3.6
2004
3.8
3.3
3.0
2.7
2.0
2.2
3.8
M
3.0
M
2.7
2.7
2005
2.6
3.0
2.9
2.7
2.8
3.1
3.3
3.8
4.2
3.8
3.4
3.1
2006
3.2
3.0
3.0
2.6
2.1
2.4
2.4
3.3
4.3
4.1
3.2
2.7
2007
2.7
2.0
2.6
2.1
2.1
2.8
2.8
3.7
4.5
4.9
4.2
3.5
2008
3.4
3.4
3.5
3.7
3.0
3.2
3.2
3.7
4.6
4.2
3.6
3.0
2009
3.4
3.3
3.4
3.1
2.7
2.6
2.9
3.3
4.0
3.4
3.0
2.5
2010
3.1
3.1
2.8
2.6
2.2
2.5
3.0
3.2
4.5
4.3
2.4
3.1
2011
3.8
4.0
4.0
3.2
3.3
3.3
3.2
4.1
4.8
4.3
3.8
3.6
2012
3.5
3.5
3.9
3.7
3.3
3.4
3.6
4.8
5.2
5.2
4.4
3.8
2013
3.7
3.8
3.9
3.3
3.0
3.0
3.4
3.9
4.4
4.4
3.4
3.5
2014
3.6
3.3
3.6
3.4
3.1
3.3
3.6
4.1
4.4
4.1
3.7
3.6
2015
3.7
3.9
3.5
4.3
3.2
3.1
3.5
4.2
4.9
4.8
4.2
3.8
2016
3.6
4.1
3.7
3.4
3.2
3.4
3.6
4.7
4.6
4.1
3.4
3.4
2017
3.6
3.5
3.6
3.4
3.3
3.2
3.3
4.3
4.5
4.8
3.5
3.4
2018
3.5
3.5
3.5
3.5
3.3
3.2
3.5
4.2
4.5
4.2
3.7
3.7
2019
3.6
3.7
3.8
3.6
3.2
3.2
3.3
4.0
5.0
4.3
3.6
3.4
2020
3.4
3.2
3.3
3.1
2.7
3.0
3.2
3.9
4.4
4.3
3.7
3.2
2021
3.2
3.4
3.2
2.9
2.6
2.7
2.9
3.9
4.4
3.8
3.3
3.1
2022
3.2
3.0
3.0
3.0
2.9
2.4
2.8
3.7
4.5
4.2
3.5
2.9
2023
2.9
2.9
3.0
2.9
2.4
2.4
2.9
3.7
4.1
3.7
3.2
3.5
2024
3.0
1.9
2.5
3.0
2.6
2.8
3.0
3.6
4.7
4.4
3.4
3.2
2025
2.8
M
M
M
M
M
M
M
M
M
M
M
Average Daily High Temperature [F]
Year
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
1973
88.19
87.96
88.71
87.55
89.03
89.83
89.64
91.74
90.90
88.45
89.00
86.77
1974
86.23
85.93
84.39
84.79
87.16
89.63
90.81
91.45
89.23
89.68
88.90
85.90
1975
85.35
85.46
87.00
86.97
87.93
90.07
88.62
90.71
90.50
90.19
88.67
87.90
1976
86.16
84.83
86.94
87.80
88.87
90.60
92.13
91.77
89.63
89.07
87.17
87.00
1977
84.92
84.44
86.10
85.48
87.10
88.33
89.00
90.07
88.77
87.82
88.57
86.55
1978
86.07
86.67
84.79
87.71
87.40
88.57
89.26
91.11
88.90
89.56
88.62
84.92
1979
84.41
82.62
87.35
87.85
87.96
88.54
89.62
88.07
87.17
88.86
87.53
85.29
1980
82.89
84.40
87.19
86.69
87.39
88.31
88.39
88.82
87.47
88.29
88.40
86.60
1981
86.11
87.38
87.00
89.00
90.00
90.93
90.89
92.62
91.53
90.33
86.62
86.88
1982
85.00
85.11
88.00
87.29
89.78
88.25
90.13
89.31
90.20
88.70
89.53
89.33
1983
88.21
87.90
86.17
89.40
91.40
91.64
92.20
88.86
90.82
88.67
87.15
85.67
1984
87.00
86.20
86.50
85.50
89.00
89.40
92.00
91.42
89.67
87.76
87.64
86.47
1985
84.20
84.08
85.88
83.50
89.00
88.92
89.71
92.67
89.78
85.67
88.70
86.40
1986
87.55
86.00
84.00
84.50
87.11
88.71
90.14
81.00
90.75
86.44
85.80
86.62
1987
86.71
89.17
84.52
88.35
91.44
91.86
94.38
92.27
92.28
90.60
89.05
87.53
1988
87.10
85.38
87.83
85.76
88.88
89.67
90.22
93.14
89.56
90.43
86.14
83.67
1989
88.38
86.78
85.00
86.29
86.11
89.80
89.67
91.00
91.67
88.33
87.17
84.88
1990
M
M
M
M
M
M
M
M
M
M
M
M
1991
M
M
M
M
M
M
M
M
M
M
M
M
1992
M
M
M
M
91.84
91.82
93.24
93.93
91.13
89.85
87.14
87.71
1993
88.04
86.72
87.88
88.75
M
91.33
90.67
92.00
92.50
92.38
86.33
86.88
1994
87.44
85.40
84.70
89.80
89.80
87.20
90.63
92.88
89.80
89.62
90.07
89.26
1995
84.47
85.33
88.12
88.57
88.97
91.24
92.41
95.66
94.30
93.00
84.33
88.17
1996
86.32
86.43
84.19
86.40
88.14
89.90
93.29
93.71
92.90
90.13
89.11
88.90
1997
85.87
88.73
86.14
88.73
89.68
92.62
93.23
93.71
92.52
91.38
M
88.19
1998
88.55
91.41
89.80
92.17
92.32
92.33
93.07
94.65
92.41
91.60
88.04
87.80
1999
87.30
87.33
87.13
89.70
89.33
91.87
93.23
95.13
92.57
90.65
89.30
87.26
2000
88.61
86.86
88.39
88.80
90.32
90.73
90.65
93.58
90.60
92.16
91.31
88.87
2001
88.29
88.32
88.87
89.57
91.48
90.10
92.13
95.35
93.20
92.71
91.03
89.61
2002
87.42
90.65
89.90
90.10
90.68
91.20
93.23
95.16
94.93
92.42
91.00
89.29
2003
89.76
88.78
89.48
92.05
92.70
93.05
95.13
95.63
95.10
92.92
90.65
91.03
2004
88.10
87.07
89.39
90.13
92.29
92.78
87.33
95.25
91.67
93.00
91.27
89.55
2005
89.74
89.39
90.26
92.67
92.94
95.57
97.32
98.32
95.63
94.16
92.23
88.26
2006
90.10
89.57
89.06
88.33
89.68
92.60
95.61
96.55
96.33
93.32
90.41
89.29
2007
M
82.42
M
M
M
M
M
M
M
M
M
M
2008
M
M
M
M
M
M
M
M
M
M
M
M
2009
90.50
90.14
90.64
88.72
M
M
M
M
M
M
86.00
M
2010
84.20
M
M
M
86.00
M
M
95.90
M
M
82.40
92.10
2011
88.16
M
M
77.00
76.10
80.00
71.60
96.80
97.76
93.26
90.56
91.57
2012
87.63
88.92
89.14
90.20
90.41
90.38
92.74
98.25
100.52
94.59
92.72
91.11
2013
89.89
91.66
92.68
92.42
93.95
95.18
97.32
97.09
94.04
89.44
85.32
89.66
2014
86.87
86.90
88.15
88.52
90.41
93.02
94.59
94.65
93.32
92.62
90.80
89.72
2015
89.19
86.84
87.97
89.78
90.41
91.52
92.10
95.29
94.64
95.35
92.60
92.85
2016
88.90
91.71
92.85
95.18
96.16
97.40
100.69
102.20
99.26
97.44
95.42
94.19
2017
93.03
91.98
94.59
94.04
91.23
93.68
95.35
100.69
103.10
100.23
96.08
93.84
2018
93.90
91.59
94.01
95.24
96.22
98.78
101.33
99.41
98.84
99.99
96.20
91.11
2019
88.44
88.25
88.32
90.20
91.63
95.06
95.23
97.32
97.64
94.65
93.38
90.88
2020
88.26
88.23
89.14
90.20
92.04
93.50
96.92
98.25
98.42
94.65
89.84
89.66
2021
91.46
89.09
88.38
90.02
92.62
93.80
95.81
98.02
93.56
93.03
90.38
88.21
2022
88.26
89.34
88.15
90.80
90.47
91.64
96.39
98.37
99.20
97.26
91.46
89.14
2023
87.97
89.21
88.09
90.08
90.99
94.46
96.63
97.50
96.62
94.65
92.78
92.15
2024
89.14
88.73
89.95
90.50
93.55
95.60
96.74
97.90
99.44
94.25
92.90
89.31
2025
87.08
M
M
M
M
M
M
M
M
M
M
M
Average Daily Low Temperature [F]
Year
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
1973
74.58
72.82
73.71
73.59
73.03
73.60
72.89
70.23
73.00
73.29
73.69
72.70
1974
72.35
72.43
72.87
73.76
73.87
70.63
69.16
69.81
71.70
72.87
73.50
73.45
1975
72.62
72.43
72.81
73.27
72.79
70.73
68.15
68.00
71.80
72.52
73.23
71.52
1976
72.52
72.17
72.81
72.90
74.13
70.47
66.48
70.71
71.87
74.50
71.37
76.25
1977
76.04
74.37
74.86
74.55
73.63
71.73
69.29
71.41
73.27
74.96
74.25
74.69
1978
73.50
75.00
74.38
74.18
76.28
74.96
74.79
73.00
73.60
74.31
77.00
72.79
1979
73.14
71.38
73.20
73.93
72.88
72.19
70.81
71.37
71.55
73.29
73.70
72.71
1980
74.00
72.90
73.57
73.50
73.39
72.96
71.78
71.82
72.74
74.42
73.60
74.40
1981
74.89
74.38
75.38
77.65
78.40
78.00
76.44
79.25
78.58
77.11
76.12
75.88
1982
75.15
76.11
74.80
76.21
78.11
79.00
77.73
77.62
78.40
75.60
77.53
74.83
1983
77.57
75.80
75.58
72.00
77.00
76.21
77.00
76.36
76.55
77.17
74.62
74.44
1984
77.00
73.40
74.00
74.50
78.00
75.60
79.50
75.17
73.00
75.06
75.55
75.13
1985
75.20
73.42
75.94
72.75
77.00
74.62
74.00
76.33
75.89
76.67
76.90
74.90
1986
75.36
74.20
75.55
75.75
76.33
75.71
76.00
78.00
75.12
77.89
73.90
75.69
1987
74.43
75.83
74.87
76.26
76.33
75.07
75.19
74.47
75.79
76.23
76.95
77.58
1988
75.35
76.38
76.42
75.71
76.06
72.17
75.33
76.86
77.22
77.43
76.00
74.50
1989
76.62
74.56
74.00
76.29
75.44
76.40
71.67
76.33
75.33
76.17
76.17
76.62
1990
M
M
M
M
M
M
M
M
M
M
M
M
1991
M
M
M
M
M
M
M
M
M
M
M
M
1992
M
M
M
M
76.20
73.91
70.62
75.89
75.17
78.08
75.57
75.96
1993
76.04
75.17
74.81
76.08
M
77.33
80.67
76.38
80.07
78.81
77.00
76.53
1994
75.39
72.60
74.50
77.00
77.40
74.40
75.26
76.62
74.60
76.58
75.73
76.32
1995
75.29
73.52
75.58
75.43
76.10
74.14
73.59
74.03
79.48
78.83
76.67
75.86
1996
76.74
78.04
77.13
78.10
79.76
79.77
71.26
74.52
76.03
76.13
76.30
75.77
1997
74.13
75.23
74.76
75.60
75.06
72.48
71.50
75.04
77.20
78.00
M
76.63
1998
75.90
77.19
75.83
77.83
76.42
73.96
73.73
75.42
76.63
76.30
75.29
73.20
1999
74.60
74.52
73.97
74.60
73.47
72.00
69.74
71.10
74.70
74.23
74.40
74.00
2000
73.81
73.41
73.55
73.90
74.16
73.33
72.35
72.52
73.60
74.77
75.10
75.10
2001
73.68
73.50
73.45
73.93
76.00
73.40
72.52
71.16
74.67
75.06
75.67
75.35
2002
74.65
75.45
74.55
74.27
74.77
73.37
73.06
72.74
74.97
75.19
75.00
75.06
2003
75.41
74.11
74.44
74.95
74.81
73.87
72.29
73.97
74.73
75.89
74.97
74.63
2004
74.48
74.21
74.77
75.40
75.35
73.11
73.00
77.50
79.22
78.00
74.18
74.03
2005
74.90
74.68
75.06
75.10
74.58
73.13
70.23
72.55
74.83
75.68
74.93
74.19
2006
73.84
73.96
74.42
74.37
74.16
72.20
70.90
70.97
74.30
76.45
75.28
75.10
2007
M
75.00
M
M
M
M
M
M
M
M
M
M
2008
M
M
M
M
M
M
M
M
M
M
M
M
2009
75.67
75.60
76.82
77.02
M
M
M
M
M
M
86.00
M
2010
84.20
M
M
M
86.00
M
M
95.90
M
M
78.80
76.30
2011
73.64
M
M
73.40
75.20
74.00
71.60
74.30
75.62
74.45
74.24
74.74
2012
73.52
73.34
69.16
73.58
74.04
72.50
70.32
69.16
74.24
75.32
75.98
72.76
2013
73.63
74.49
75.37
74.96
74.56
72.38
71.77
72.76
75.02
76.61
74.98
73.57
2014
73.34
71.99
71.66
74.60
74.45
72.26
71.08
71.54
73.22
73.86
74.24
71.83
2015
72.76
73.01
73.98
74.90
74.04
72.44
71.66
71.43
75.14
76.83
75.98
75.49
2016
75.84
75.20
75.66
75.68
74.33
72.02
69.68
72.76
74.72
74.50
74.72
73.86
2017
73.52
73.91
74.21
74.78
74.74
71.66
68.58
72.76
73.22
76.83
72.74
74.97
2018
73.81
74.17
72.35
70.76
73.98
70.70
70.61
73.11
75.26
76.30
74.78
73.86
2019
74.10
74.88
74.62
75.80
74.74
72.14
71.19
72.24
75.92
75.72
75.44
75.43
2020
74.68
74.89
75.14
75.38
75.43
72.32
69.16
70.96
74.30
76.19
74.96
74.39
2021
73.28
74.04
73.57
74.78
73.11
72.08
70.67
71.19
74.84
74.85
74.90
74.85
2022
73.63
73.91
74.15
74.96
73.52
71.54
70.44
71.25
74.66
76.19
74.60
74.62
2023
73.46
73.79
73.34
74.06
74.50
72.38
69.97
73.11
75.56
76.94
76.04
76.30
2024
75.95
75.45
76.01
76.28
76.07
73.64
71.83
71.95
75.86
76.54
76.64
75.20
2025
73.94
M
M
M
M
M
M
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
1973
81.39
80.39
81.21
80.57
81.03
81.72
81.27
80.98
81.95
80.87
81.34
79.73
1974
79.29
79.18
78.63
79.28
80.52
80.13
79.98
80.63
80.47
81.27
81.20
79.68
1975
78.98
78.95
79.90
80.12
80.36
80.40
78.38
79.35
81.15
81.35
80.95
79.71
1976
79.34
78.50
79.87
80.35
81.50
80.53
79.31
81.24
80.75
81.78
79.27
81.62
1977
80.48
79.41
80.48
80.02
80.37
80.03
79.15
80.74
81.02
81.39
81.41
80.62
1978
79.79
80.83
79.59
80.95
81.84
81.76
82.03
82.05
81.25
81.94
82.81
78.85
1979
78.78
77.00
80.28
80.89
80.42
80.37
80.21
79.72
79.36
81.07
80.62
79.00
1980
78.45
78.65
80.38
80.09
80.39
80.63
80.08
80.32
80.11
81.35
81.00
80.50
1981
80.50
80.88
81.19
83.33
84.20
84.47
83.67
85.94
85.05
83.72
81.38
81.38
1982
80.08
80.61
81.40
81.75
83.94
83.62
83.93
83.47
84.30
82.15
83.53
82.08
1983
82.89
81.85
80.88
80.70
84.20
83.93
84.60
82.61
83.68
82.92
80.88
80.06
1984
82.00
79.80
80.25
80.00
83.50
82.50
85.75
83.29
81.33
81.41
81.59
80.80
1985
79.70
78.75
80.91
78.12
83.00
81.77
81.86
84.50
82.83
81.17
82.80
80.65
1986
81.45
80.10
79.77
80.12
81.72
82.21
83.07
79.50
82.94
82.17
79.85
81.15
1987
80.57
82.50
79.70
82.30
83.89
83.47
84.79
83.37
84.03
83.42
83.00
82.55
1988
81.22
80.88
82.12
80.74
82.47
80.92
82.78
85.00
83.39
83.93
81.07
79.08
1989
82.50
80.67
79.50
81.29
80.78
83.10
80.67
83.67
83.50
82.25
81.67
80.75
1990
M
M
M
M
M
M
M
M
M
M
M
M
1991
M
M
M
M
M
M
M
M
M
M
M
M
1992
M
M
M
M
84.02
82.86
81.93
84.91
83.15
83.96
81.36
81.83
1993
82.04
80.94
81.34
82.42
M
84.33
85.67
84.19
86.29
85.59
81.67
81.71
1994
81.42
79.00
79.60
83.40
83.60
80.80
82.95
84.75
82.20
83.10
82.90
82.79
1995
79.88
79.43
81.85
82.00
82.53
82.69
83.00
84.84
86.89
85.92
80.50
82.02
1996
81.53
82.23
80.66
82.25
83.95
84.83
82.27
84.11
84.47
83.13
82.70
82.33
1997
80.00
81.98
80.45
82.17
82.37
82.55
82.37
84.38
84.86
84.69
M
82.41
1998
82.22
84.30
82.82
85.00
84.37
83.15
83.40
85.04
84.52
83.95
81.67
80.50
1999
80.95
80.93
80.55
82.15
81.40
81.93
81.48
83.11
83.63
82.44
81.85
80.63
2000
81.21
80.14
80.97
81.35
82.24
82.03
81.50
83.05
82.10
83.47
83.21
81.98
2001
80.98
80.91
81.16
81.75
83.74
81.75
82.32
83.26
83.93
83.89
83.35
82.48
2002
81.03
83.05
82.23
82.18
82.73
82.28
83.15
83.95
84.95
83.81
83.00
82.18
2003
82.59
81.44
81.96
83.50
83.75
83.46
83.71
84.80
84.92
84.41
82.81
82.83
2004
81.29
80.64
82.08
82.77
83.82
82.94
80.17
86.38
85.44
85.50
82.73
81.79
2005
82.32
82.04
82.66
83.88
83.76
84.35
83.77
85.44
85.23
84.92
83.58
81.23
2006
81.97
81.77
81.74
81.35
81.92
82.40
83.26
83.76
85.32
84.89
82.84
82.19
2007
M
78.71
M
M
M
M
M
M
M
M
M
M
2008
M
M
M
M
M
M
M
M
M
M
M
M
2009
83.08
82.87
83.73
82.87
M
M
M
M
M
M
86.00
M
2010
84.20
M
M
M
86.00
M
M
95.90
M
M
80.60
84.20
2011
80.90
M
M
75.20
75.65
77.00
71.60
85.55
86.69
83.85
82.40
83.15
2012
80.57
81.13
79.15
81.89
82.23
81.44
81.53
83.71
87.38
84.95
84.35
81.94
2013
81.76
83.07
84.03
83.69
84.26
83.78
84.55
84.93
84.53
83.03
80.15
81.62
2014
80.11
79.44
79.90
81.56
82.43
82.64
82.84
83.10
83.27
83.24
82.52
80.77
2015
80.98
79.92
80.98
82.34
82.23
81.98
81.88
83.36
84.89
86.09
84.29
84.17
2016
82.37
83.46
84.26
85.43
85.25
84.71
85.19
87.48
86.99
85.97
85.07
84.03
2017
83.27
82.95
84.40
84.41
82.98
82.67
81.96
86.73
88.16
88.53
84.41
84.40
2018
83.85
82.88
83.18
83.00
85.10
84.74
85.97
86.26
87.05
88.15
85.49
82.49
2019
81.27
81.56
81.47
83.00
83.18
83.60
83.21
84.78
86.78
85.19
84.41
83.15
2020
81.47
81.56
82.14
82.79
83.74
82.91
83.04
84.61
86.36
85.42
82.40
82.02
2021
82.37
81.56
80.98
82.40
82.86
82.94
83.24
84.61
84.20
83.94
82.64
81.53
2022
80.95
81.63
81.15
82.88
81.99
81.59
83.42
84.81
86.93
86.73
83.03
81.88
2023
80.72
81.50
80.72
82.07
82.75
83.42
83.30
85.30
86.09
85.80
84.41
84.23
2024
82.55
82.09
82.98
83.39
84.81
84.62
84.29
84.93
87.65
85.39
84.77
82.25
2025
80.51
M
M
M
M
M
M
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.
