IEM :: Monthly Summaries

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	M	M	M	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	M	0.00	0.00	0.00	0.00	M	M	0.00	0.00	M
1978	M	M	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	M	0.00
1979	M	M	0.00	M	0.00	0.00	0.00	0.00	0.00	M	M	0.00
1980	0.00	0.00	M	M	0.00	0.00	0.00	0.00	0.00	0.00	0.00	M
1981	0.00	0.00	M	0.00	0.00	0.00	0.00	M	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	M	0.00	0.00	0.00	M	M	0.00	0.00	0.00	M
1993	M	M	0.00	M	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	0.00	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	M	M	M	M	M
2012	M	M	M	M	M	M	M	M	M	0.00	M	M
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	M	M	M	M	M	M	M
1976	M	M	M	M	M	M	M	M	M	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	24.0	M	M	M	M	M
1981	M	M	M	M	14.1	M	M	M	13.0	8.4	M	2.7
1982	M	M	M	M	M	M	M	M	11.5	M	M	M
1983	M	M	M	M	M	M	M	24.1	M	M	M	M
1984	M	M	M	M	M	M	M	M	M	M	M	M
1985	9.4	23.3	17.5	11.8	11.2	M	18.7	17.4	14.9	12.6	10.9	6.9
1986	M	M	17.0	13.7	18.0	17.3	17.0	16.9	12.2	14.0	13.0	12.3
1987	10.0	9.0	10.8	12.2	16.6	16.7	14.6	14.6	10.2	20.9	13.9	6.8
1988	11.1	9.7	12.1	13.8	18.4	16.0	15.4	13.8	12.1	11.7	10.6	9.8
1989	9.6	16.8	14.8	17.8	13.1	14.3	15.3	14.6	12.8	12.0	10.4	10.0
1990	5.6	10.4	11.9	15.7	15.6	15.7	14.0	15.2	13.5	13.4	12.5	11.1
1991	10.7	12.6	16.0	16.2	15.2	16.3	15.3	14.3	M	M	4.1	M
1992	M	M	M	11.2	M	M	M	M	M	M	M	M
1993	M	M	M	M	M	M	M	16.6	16.3	11.8	15.5	12.3
1994	14.6	11.2	12.7	13.9	15.9	14.7	15.0	16.1	11.1	9.2	9.5	8.4
1995	8.1	13.3	15.4	14.6	16.2	14.4	15.7	15.1	15.6	9.4	11.6	6.5
1996	11.7	13.9	11.6	12.6	13.6	14.5	16.3	16.2	13.8	9.7	9.3	9.5
1997	9.7	9.5	10.2	14.3	13.9	15.3	17.4	15.8	14.4	9.4	13.5	8.4
1998	10.1	12.9	11.8	20.2	16.4	15.3	16.8	M	M	13.5	10.8	8.7
1999	14.5	14.6	14.3	8.8	16.7	16.6	16.8	17.9	14.2	10.5	11.1	12.4
2000	8.2	8.2	13.9	17.0	12.9	15.4	15.6	13.8	10.5	9.3	9.5	7.8
2001	8.3	7.3	9.4	11.2	14.3	11.7	17.9	15.4	15.6	11.6	10.7	12.1
2002	11.5	12.1	14.9	16.1	19.2	21.0	17.8	18.4	11.5	14.0	9.7	12.5
2003	M	M	M	M	M	18.4	M	M	M	M	M	5.4
2004	21.7	M	10.1	M	M	12.3	M	9.2	20.3	M	M	23.5
2005	18.1	M	18.2	M	M	M	M	12.2	8.9	10.6	5.8	9.1
2006	4.1	24.5	8.0	8.6	9.6	15.4	14.2	12.1	6.4	25.7	M	M
2007	M	M	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	M	M	M	M	M
2012	M	M	M	M	M	M	M	M	M	3.5	M	M
2013	12.7	12.0	12.3	13.6	15.2	15.2	13.5	11.3	10.1	11.2	10.8	12.3
2014	13.3	13.6	12.7	11.1	14.1	13.7	14.9	14.6	11.9	9.7	12.1	11.3
2015	12.7	14.5	11.8	11.2	13.5	14.4	12.6	14.0	12.3	10.1	9.2	10.9
2016	8.4	13.6	13.4	13.6	13.2	15.4	13.1	10.5	13.4	9.4	9.4	12.2
2017	11.4	11.8	17.2	10.7	12.1	15.4	13.9	11.5	12.2	8.3	9.3	9.8
2018	10.6	12.1	15.0	14.5	15.4	15.7	16.8	11.4	11.2	10.9	9.4	9.0
2019	10.9	10.2	10.7	15.2	13.7	16.4	16.7	13.4	11.2	10.2	11.4	9.0
2020	13.9	11.3	13.1	13.3	11.7	13.2	15.9	14.1	12.8	11.4	8.9	10.4
2021	11.0	10.6	11.6	13.4	14.7	15.3	14.3	14.3	11.3	10.3	9.5	10.2
2022	13.8	12.2	14.3	14.6	12.2	15.8	14.1	15.1	14.1	10.2	10.2	10.6
2023	10.5	12.0	11.4	12.9	14.7	13.5	17.4	13.2	12.4	10.4	10.6	9.2
2024	11.1	16.5	13.3	14.7	16.5	16.9	15.8	15.7	12.9	11.3	9.8	12.2
2025	10.9	11.5	11.7	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
1975	M	M	M	M	M	M	M	M	79.00	72.00	72.00	70.33
1976	65.60	75.00	68.00	65.00	68.25	74.50	73.00	81.00	85.33	75.33	72.50	75.50
1977	65.33	66.67	M	88.50	70.00	74.00	73.00	M	M	72.00	68.00	M
1978	M	M	63.00	64.71	66.64	70.20	81.20	79.00	83.00	73.00	M	79.00
1979	M	M	62.67	M	67.20	72.50	74.14	73.75	73.83	M	M	73.00
1980	73.00	60.50	M	M	67.50	71.00	70.00	92.00	87.25	83.00	72.50	M
1981	77.00	62.50	M	72.50	69.00	68.00	77.00	M	76.22	77.50	82.80	69.00
1982	73.00	66.75	67.71	71.20	68.11	67.89	77.67	76.17	76.19	79.60	67.00	65.00
1983	62.00	67.88	79.20	67.75	68.00	79.50	76.50	74.38	79.40	82.75	69.00	71.00
1984	66.75	65.00	66.25	70.00	66.86	72.00	80.57	74.82	77.40	74.18	66.14	68.50
1985	65.90	71.91	68.45	75.21	69.09	73.08	75.55	74.64	77.53	77.50	74.10	66.10
1986	62.83	61.00	64.50	65.04	72.82	70.30	73.68	80.30	82.28	72.10	69.80	68.28
1987	67.57	67.38	73.33	73.52	72.21	73.00	74.54	76.50	84.09	75.06	70.25	68.91
1988	64.61	65.46	73.43	66.71	68.55	71.55	76.63	80.04	77.56	77.18	73.48	68.13
1989	66.81	67.60	75.59	65.54	70.67	71.89	77.27	79.70	79.46	78.68	70.59	70.74
1990	64.57	74.74	74.66	68.45	69.44	71.43	77.69	82.62	80.28	74.48	69.50	67.36
1991	67.67	62.56	66.80	66.40	74.31	71.00	74.81	76.86	76.25	83.33	73.36	57.00
1992	64.00	63.75	M	70.00	101.50	70.00	M	M	80.50	72.00	77.00	M
1993	M	M	65.00	M	75.00	75.00	71.00	74.00	73.77	71.38	66.78	72.80
1994	65.39	70.74	67.23	70.69	70.80	73.33	77.17	76.68	73.33	74.13	74.82	72.52
1995	68.16	70.26	71.06	70.60	70.29	73.30	76.94	79.74	77.70	81.13	77.33	70.29
1996	69.19	66.14	68.65	70.20	76.13	73.66	75.42	76.23	77.30	79.21	75.79	68.29
1997	68.77	76.68	77.27	73.54	72.32	74.80	74.28	77.93	77.73	78.57	74.80	70.41
1998	68.96	75.54	80.47	69.38	70.66	75.93	73.57	77.21	76.00	79.18	76.58	67.93
1999	66.55	64.38	68.52	70.96	71.17	72.39	75.67	77.14	76.69	75.38	70.62	69.58
2000	67.80	71.73	77.61	69.00	71.58	75.17	75.21	78.40	76.93	74.93	69.47	70.32
2001	67.38	71.68	74.84	69.18	70.14	72.77	73.47	77.92	76.60	83.63	72.89	72.68
2002	72.21	72.58	72.68	70.00	68.00	70.74	72.76	74.10	79.23	81.14	72.28	71.00
2003	67.08	67.69	74.96	69.38	74.73	72.93	74.89	80.06	79.18	75.81	68.56	68.47
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	67.63	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	M	M	M	M	M
2012	M	M	M	M	M	M	M	M	M	72.80	M	M
2013	70.16	69.93	71.14	73.64	72.35	70.70	76.83	85.01	78.73	77.29	71.54	69.28
2014	66.49	65.94	68.87	72.98	71.95	73.10	74.62	76.70	80.24	82.05	72.32	68.12
2015	65.04	63.69	70.96	69.86	77.06	74.42	81.18	79.55	78.98	81.18	76.88	75.03
2016	74.10	68.06	67.94	68.90	71.37	74.42	78.51	85.19	76.64	79.15	74.36	70.67
2017	67.30	68.32	74.15	77.30	75.55	76.70	75.49	82.52	78.38	83.79	77.90	67.88
2018	66.08	64.53	69.97	68.48	68.12	71.54	74.97	79.26	81.80	78.05	70.22	74.33
2019	66.61	75.01	73.05	71.30	72.30	75.32	75.72	79.26	78.38	78.51	71.84	70.85
2020	68.81	76.32	70.09	71.30	76.36	76.82	77.70	80.48	81.32	77.70	77.00	68.81
2021	68.12	68.96	71.95	70.22	73.11	72.86	77.29	78.45	79.58	78.45	70.34	73.52
2022	71.95	73.98	66.78	72.68	76.83	73.58	81.76	77.75	77.12	87.92	80.42	77.00
2023	68.87	66.14	76.42	74.30	72.88	77.66	77.46	84.66	78.86	86.99	76.70	73.46
2024	76.83	74.83	70.85	76.46	70.21	71.24	75.66	77.93	75.92	75.43	83.84	72.35
2025	70.44	71.09	68.18	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
1975	M	M	M	M	M	M	M	M	68.67	59.00	58.50	53.83
1976	49.80	63.00	61.00	58.00	63.00	66.50	67.00	68.00	69.67	62.67	57.75	56.00
1977	59.00	55.17	M	62.50	63.00	62.00	68.00	M	M	64.00	59.00	M
1978	M	M	57.00	55.86	59.91	61.10	67.20	70.00	67.83	64.00	M	63.00
1979	M	M	53.67	M	59.20	61.50	65.43	64.38	64.50	M	M	54.00
1980	61.00	54.75	M	M	61.00	63.60	64.00	72.67	74.12	67.67	60.00	M
1981	59.00	51.00	M	57.00	61.00	61.00	68.00	M	63.44	62.50	73.80	57.78
1982	58.50	57.38	57.71	61.40	60.67	62.44	64.33	65.67	67.12	63.80	58.00	52.33
1983	58.00	54.25	69.20	59.25	62.00	66.50	65.25	65.77	68.40	69.50	61.00	58.33
1984	54.25	40.00	55.00	60.00	58.43	62.18	66.29	66.36	67.30	63.91	56.57	57.00
1985	53.90	59.00	57.00	61.43	58.36	63.83	65.64	64.91	66.76	63.95	63.30	54.30
1986	54.33	50.50	56.06	56.04	61.61	62.70	64.58	67.93	68.16	62.83	58.60	56.41
1987	57.35	56.48	58.67	62.57	61.42	64.26	66.14	67.17	69.55	65.44	60.12	57.43
1988	54.25	55.83	58.50	57.39	60.10	61.79	65.67	67.37	65.70	64.50	61.90	55.42
1989	53.26	58.36	60.31	56.75	59.70	62.33	67.03	69.10	66.62	67.05	59.59	60.74
1990	52.96	58.63	61.24	58.05	60.33	63.68	66.65	68.90	68.20	64.19	59.56	57.07
1991	53.48	52.89	56.23	57.70	59.92	62.90	65.26	66.52	67.00	67.33	62.45	54.00
1992	55.00	57.00	M	61.67	72.50	64.00	M	M	64.50	66.50	56.00	M
1993	M	M	58.00	M	61.00	65.33	65.00	65.25	64.12	60.81	57.61	59.10
1994	54.45	55.84	57.36	58.90	60.90	63.70	66.35	66.76	63.80	63.73	62.59	58.45
1995	54.06	56.41	58.77	60.40	62.48	63.70	66.48	67.19	65.41	67.65	64.50	57.97
1996	57.85	56.59	55.90	58.76	62.61	64.79	66.52	66.20	65.50	63.54	61.24	55.77
1997	57.00	58.86	61.27	60.68	61.19	64.63	65.52	67.47	67.03	65.80	61.57	56.90
1998	56.17	62.18	63.47	59.90	59.76	64.14	65.46	67.32	67.70	63.64	62.19	54.43
1999	54.00	53.33	56.67	59.35	60.66	63.79	66.38	67.43	66.42	64.62	58.67	56.62
2000	52.65	56.96	63.45	57.81	59.68	63.38	65.45	66.80	65.30	61.10	57.50	57.23
2001	55.48	56.29	60.35	59.50	59.41	63.69	64.53	66.19	66.48	68.00	62.30	61.25
2002	58.07	58.15	58.68	60.12	60.10	62.00	65.17	65.23	66.07	67.76	60.86	60.00
2003	54.56	54.62	59.04	59.12	63.58	64.59	65.78	68.75	67.77	65.19	59.67	57.26
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	56.44	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	M	M	M	M	M
2012	M	M	M	M	M	M	M	M	M	69.80	M	M
2013	56.66	56.11	58.13	61.28	60.16	62.06	65.56	69.22	66.65	65.21	60.02	57.20
2014	53.60	54.63	56.21	58.40	61.50	62.84	65.33	66.50	67.28	65.56	60.86	55.98
2015	53.89	53.47	55.57	57.32	62.95	63.44	66.66	67.59	66.38	65.62	60.62	59.64
2016	57.08	56.08	54.70	57.98	60.92	64.04	66.61	69.57	66.26	64.23	60.14	57.95
2017	53.83	55.72	58.42	61.58	63.18	65.36	65.33	67.71	65.78	66.72	62.18	53.89
2018	53.31	53.02	58.25	57.74	59.23	62.54	64.69	68.12	68.60	65.45	58.28	56.04
2019	53.54	55.53	57.26	58.46	60.57	63.32	65.56	65.50	65.42	63.41	58.82	56.04
2020	52.61	59.43	57.20	58.88	62.19	65.12	66.72	67.19	67.10	62.72	62.00	56.45
2021	55.05	55.34	57.32	59.96	61.79	63.38	65.62	66.66	66.26	62.77	55.58	57.61
2022	57.43	59.77	55.92	59.48	61.38	64.04	67.59	67.01	67.04	68.17	62.42	60.05
2023	53.72	52.96	59.29	61.28	61.21	66.56	67.48	69.80	66.50	69.74	61.76	56.79
2024	59.35	60.06	57.90	62.12	61.09	63.26	65.91	67.36	65.96	64.69	67.16	58.71
2025	55.23	54.44	55.31	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
1975	M	M	M	M	M	M	M	M	73.83	65.50	65.25	62.08
1976	57.70	69.00	64.50	61.50	65.62	70.50	70.00	74.50	77.50	69.00	65.12	65.75
1977	62.17	60.92	M	75.50	66.50	68.00	70.50	M	M	68.00	63.50	M
1978	M	M	60.00	60.29	63.27	65.65	74.20	74.50	75.42	68.50	M	71.00
1979	M	M	58.17	M	63.20	67.00	69.79	69.06	69.17	M	M	63.50
1980	67.00	57.62	M	M	64.25	67.30	67.00	82.33	80.69	75.33	66.25	M
1981	68.00	56.75	M	64.75	65.00	64.50	72.50	M	69.83	70.00	78.30	63.39
1982	65.75	62.06	62.71	66.30	64.39	65.17	71.00	70.92	71.66	71.70	62.50	58.67
1983	60.00	61.06	74.20	63.50	65.00	73.00	70.88	70.08	73.90	76.12	65.00	64.67
1984	60.50	52.50	60.62	65.00	62.64	67.09	73.43	70.59	72.35	69.05	61.36	62.75
1985	59.90	65.45	62.73	68.32	63.73	68.46	70.59	69.77	72.15	70.73	68.70	60.20
1986	58.58	55.75	60.28	60.54	67.21	66.50	69.13	74.11	75.22	67.47	64.20	62.34
1987	62.46	61.93	66.00	68.04	66.81	68.63	70.34	71.83	76.82	70.25	65.19	63.17
1988	59.43	60.65	65.97	62.05	64.33	66.67	71.15	73.70	71.63	70.84	67.69	61.77
1989	60.03	62.98	67.95	61.14	65.18	67.11	72.15	74.40	73.04	72.86	65.09	65.74
1990	58.77	66.69	67.95	63.25	64.89	67.55	72.17	75.76	74.24	69.33	64.53	62.21
1991	60.57	57.72	61.52	62.05	67.12	66.95	70.04	71.69	71.62	75.33	67.91	55.50
1992	59.50	60.38	M	65.83	87.00	67.00	M	M	72.50	69.25	66.50	M
1993	M	M	61.50	M	68.00	70.17	68.00	69.62	68.94	66.10	62.20	65.95
1994	59.92	63.29	62.30	64.79	65.85	68.52	71.76	71.72	68.57	68.93	68.70	65.48
1995	61.11	63.33	64.92	65.50	66.39	68.50	71.71	73.47	71.56	74.39	70.92	64.13
1996	63.52	61.36	62.27	64.48	69.37	69.22	70.97	71.22	71.40	71.38	68.52	62.03
1997	62.88	67.77	69.27	67.11	66.76	69.72	69.90	72.70	72.38	72.18	68.18	63.66
1998	62.57	68.86	71.97	64.64	65.21	70.04	69.52	72.26	71.85	71.41	69.38	61.18
1999	60.28	58.85	62.59	65.15	65.91	68.09	71.02	72.29	71.56	70.00	64.65	63.10
2000	60.23	64.35	70.53	63.40	65.63	69.28	70.33	72.60	71.12	68.02	63.48	63.77
2001	61.43	63.98	67.60	64.34	64.78	68.23	69.00	72.06	71.54	75.81	67.59	66.96
2002	65.14	65.37	65.68	65.06	64.05	66.37	68.97	69.67	72.65	74.45	66.57	65.50
2003	60.82	61.15	67.00	64.25	69.15	68.76	70.33	74.41	73.48	70.50	64.11	62.87
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	62.04	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	M	M	M	M	M
2012	M	M	M	M	M	M	M	M	M	71.30	M	M
2013	63.41	63.02	64.63	67.46	66.26	66.38	71.19	77.12	72.69	71.25	65.78	63.24
2014	60.05	60.29	62.54	65.69	66.72	67.97	69.97	71.60	73.76	73.81	66.59	62.05
2015	59.46	58.58	63.27	63.59	70.00	68.93	73.92	73.57	72.68	73.40	68.75	67.33
2016	65.59	62.07	61.32	63.44	66.14	69.23	72.56	77.38	71.45	71.69	67.25	64.31
2017	60.57	62.02	66.29	69.44	69.36	71.03	70.41	75.11	72.08	75.26	70.04	60.89
2018	59.70	58.77	64.11	63.11	63.67	67.04	69.83	73.69	75.20	71.75	64.25	65.18
2019	60.07	65.27	65.15	64.88	66.43	69.32	70.64	72.38	71.90	70.96	65.33	63.44
2020	60.71	67.88	63.65	65.09	69.28	70.97	72.21	73.84	74.21	70.21	69.50	62.63
2021	61.58	62.15	64.63	65.09	67.45	68.12	71.45	72.56	72.92	70.61	62.96	65.56
2022	64.69	66.87	61.35	66.08	69.10	68.81	74.68	72.38	72.08	78.05	71.42	68.52
2023	61.29	59.55	67.85	67.79	67.04	72.11	72.47	77.23	72.68	78.36	69.23	65.13
2024	68.09	67.44	64.37	69.29	65.65	67.25	70.79	72.65	70.94	70.06	75.50	65.53
2025	62.83	62.76	61.74	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.

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1975	M	M	M	M	M	M	M	M	M	M	M	M
1976	M	M	M	M	M	M	M	M	M	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	86.2%	M	M	M	M	M
1981	M	M	M	M	81.3%	M	M	M	71.1%	67.7%	M	86.4%
1982	M	M	M	M	M	M	M	M	82.1%	M	M	M
1983	M	M	M	M	M	M	M	87.1%	M	M	M	M
1984	M	M	M	M	M	M	M	M	M	M	M	M
1985	62.3%	24.9%	78.7%	53.3%	73.0%	M	84.1%	90.6%	84.7%	75.3%	72.3%	80.5%
1986	M	M	79.7%	78.4%	76.2%	84.7%	87.8%	82.9%	72.1%	82.1%	74.3%	65.2%
1987	65.5%	57.0%	64.6%	74.3%	77.1%	84.5%	85.1%	83.0%	71.8%	75.4%	80.1%	74.7%
1988	82.4%	69.8%	64.6%	79.3%	81.3%	84.0%	85.2%	83.9%	85.1%	80.5%	79.7%	51.8%
1989	53.5%	57.2%	65.4%	80.7%	77.2%	70.9%	79.6%	77.0%	79.6%	79.7%	78.6%	77.0%
1990	75.2%	66.9%	60.2%	72.4%	80.3%	81.6%	76.7%	65.4%	73.5%	79.8%	79.6%	73.0%
1991	64.0%	80.3%	77.0%	79.6%	83.7%	90.3%	87.2%	81.9%	M	M	66.6%	M
1992	M	M	M	55.7%	M	M	M	M	M	M	M	M
1993	M	M	M	M	M	M	M	82.8%	84.5%	75.4%	79.8%	64.8%
1994	60.9%	67.1%	83.2%	76.3%	81.2%	86.9%	84.1%	85.8%	82.9%	81.3%	66.5%	58.6%
1995	69.2%	69.2%	61.2%	73.4%	83.1%	80.4%	84.6%	84.0%	81.1%	67.3%	71.8%	73.7%
1996	74.3%	70.9%	76.5%	75.1%	71.7%	85.1%	86.1%	81.1%	83.4%	72.3%	67.1%	79.2%
1997	73.6%	53.3%	57.7%	77.3%	79.9%	78.9%	84.9%	85.4%	85.1%	81.4%	79.1%	75.9%
1998	79.7%	53.5%	41.6%	79.3%	75.5%	77.7%	86.9%	M	M	71.0%	78.7%	66.0%
1999	61.1%	76.0%	73.7%	75.0%	84.0%	78.7%	83.2%	82.0%	78.9%	77.0%	61.8%	65.8%
2000	54.7%	60.5%	54.8%	69.6%	75.3%	76.8%	78.2%	77.5%	78.8%	75.2%	75.3%	79.1%
2001	73.3%	61.7%	70.4%	80.1%	75.7%	83.5%	83.0%	79.8%	82.8%	70.8%	62.7%	57.2%
2002	48.7%	63.6%	66.5%	71.4%	80.9%	80.9%	87.8%	89.8%	82.8%	69.0%	83.9%	81.7%
2003	M	M	M	M	M	91.8%	M	M	M	M	M	89.1%
2004	73.9%	M	73.9%	M	M	90.7%	M	92.2%	84.3%	M	M	49.5%
2005	59.4%	M	69.8%	M	M	M	M	88.5%	84.3%	53.4%	91.8%	71.8%
2006	91.0%	22.9%	78.3%	79.8%	89.1%	96.8%	88.6%	91.7%	81.4%	82.0%	M	M
2007	M	M	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	M	M	M	M	M
2012	M	M	M	M	M	M	M	M	M	81.3%	M	M
2013	62.3%	57.3%	71.8%	67.1%	70.4%	77.8%	78.3%	68.7%	76.8%	75.7%	67.8%	50.0%
2014	73.2%	79.6%	72.5%	74.3%	76.8%	76.0%	77.0%	84.5%	79.6%	77.9%	82.7%	69.1%
2015	63.5%	80.6%	68.4%	74.0%	69.8%	75.3%	76.5%	76.8%	75.1%	68.3%	60.8%	32.3%
2016	58.7%	66.9%	69.6%	72.8%	75.3%	75.3%	80.3%	72.2%	80.0%	71.6%	65.7%	52.4%
2017	51.0%	70.6%	58.7%	66.3%	72.8%	76.9%	80.6%	74.9%	80.0%	60.8%	50.3%	63.7%
2018	70.4%	70.8%	68.6%	72.6%	73.5%	74.4%	80.0%	79.8%	73.9%	72.8%	77.6%	51.8%
2019	57.6%	47.6%	69.9%	70.4%	77.1%	70.7%	77.6%	77.6%	76.8%	70.7%	74.2%	63.1%
2020	52.3%	51.2%	67.7%	72.0%	70.2%	72.9%	82.6%	75.5%	73.7%	69.4%	59.5%	66.2%
2021	68.5%	67.7%	62.2%	71.8%	73.8%	74.3%	80.1%	74.6%	77.6%	73.9%	74.4%	53.7%
2022	40.3%	53.2%	77.6%	67.5%	73.2%	81.8%	79.5%	85.8%	85.8%	57.4%	66.9%	59.3%
2023	65.1%	67.3%	67.7%	71.1%	73.9%	76.4%	80.8%	73.9%	77.0%	54.0%	64.3%	50.1%
2024	41.7%	54.6%	68.6%	63.0%	77.7%	79.7%	82.5%	81.9%	81.9%	79.1%	42.9%	48.8%
2025	58.8%	63.4%	74.7%	M	M	M	M	M	M	M	M	M