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
1980	M	M	M	M	M	M	M	M	M	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	M	0.00	0.00	M	0.00	0.00	0.00	0.00	M
1983	M	M	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	M	M	M	M	0.00	M	0.00	M	M	M	0.00	M
1986	M	M	M	M	M	M	M	M	M	M	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	M
1988	M	M	M	M	M	0.00	M	M	M	M	M	M
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	M	M	0.00	0.00	0.00
1991	M	M	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	M
1993	0.00	0.00	0.00	M	M	M	0.00	0.00	0.00	0.00	0.00	M
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	M	0.00	0.00	0.00	0.00	0.00	0.00	0.00	M	0.00	0.00
1996	0.00	0.00	0.00	0.00	0.00	M	M	0.00	0.00	0.00	0.00	0.00
1997	0.00	M	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	0.03	0.00	0.00
2001	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.71	0.03	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
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	M	M	M	M	M	M
1984	M	M	M	M	M	M	M	M	M	M	M	M
1985	M	M	M	M	M	M	M	M	M	M	M	M
1986	M	M	M	M	M	M	M	M	M	M	M	M
1987	M	M	M	M	M	M	M	M	M	M	M	M
1988	M	M	M	M	M	M	M	M	M	M	M	M
1989	M	M	6.1	5.3	2.2	3.6	4.6	5.0	M	6.4	1.3	5.7
1990	M	6.9	4.7	3.4	4.3	M	M	M	M	M	M	M
1991	M	M	11.3	6.3	6.1	5.8	5.7	4.7	4.9	6.1	8.2	3.8
1992	5.1	4.2	4.0	4.8	M	4.0	4.4	4.3	3.2	1.6	M	M
1993	M	M	M	M	M	M	M	M	M	5.3	4.5	M
1994	5.9	5.1	3.9	M	M	M	M	M	4.1	M	M	4.6
1995	M	M	M	M	3.9	4.8	3.2	5.5	3.0	M	4.1	3.4
1996	3.0	3.2	4.1	3.2	3.9	M	M	12.7	3.3	3.1	4.1	M
1997	M	M	2.9	4.9	4.7	4.3	2.6	2.4	2.7	4.3	6.4	8.4
1998	5.3	6.5	6.3	7.3	3.9	3.4	3.3	3.2	2.6	3.4	3.7	6.9
1999	5.5	5.1	4.2	5.9	3.8	3.8	3.9	3.6	4.5	6.1	5.7	7.5
2000	5.0	4.9	6.1	4.6	4.4	3.9	4.3	4.8	3.9	6.7	7.5	5.4
2001	5.8	5.6	5.5	5.3	4.6	5.7	4.7	5.4	6.9	3.6	4.6	8.5
2002	9.4	7.6	6.1	5.3	4.7	4.8	4.3	4.7	4.5	5.5	5.9	7.0
2003	5.4	6.6	6.8	4.8	3.5	3.0	4.6	3.8	2.7	2.3	3.9	4.3
2004	3.3	4.5	4.9	5.4	4.6	3.1	3.4	3.6	4.0	5.5	7.4	8.8
2005	6.2	6.2	7.2	6.7	4.4	4.9	5.3	5.6	4.6	6.3	6.8	5.9
2006	5.9	5.6	6.1	5.4	4.7	4.2	5.3	4.7	4.1	5.3	5.0	7.8
2007	6.9	7.3	6.5	5.9	5.2	5.7	5.7	4.8	4.7	6.5	5.5	8.2
2008	6.9	6.2	6.8	6.7	6.2	5.3	5.2	5.9	4.4	5.5	5.5	7.3
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	8.0	6.7	6.1	7.3	8.4	10.4
2012	7.3	7.9	8.8	5.9	4.5	4.5	4.6	4.2	4.4	4.1	6.0	7.9
2013	9.4	9.6	6.3	7.7	5.4	4.6	4.4	5.2	5.3	5.1	7.7	9.4
2014	7.9	5.9	7.1	7.9	6.7	5.3	6.2	5.6	6.3	6.8	9.4	8.6
2015	7.3	6.6	6.3	5.8	7.1	5.2	5.3	5.4	5.3	7.6	9.5	9.3
2016	7.7	8.4	6.5	7.5	5.9	4.3	4.7	6.3	5.0	6.2	7.9	8.0
2017	8.5	7.1	7.2	6.7	6.3	5.0	3.9	5.6	4.7	8.4	6.2	6.8
2018	9.5	6.7	7.7	5.5	5.2	4.9	5.0	5.1	5.9	8.9	7.9	8.8
2019	8.1	7.8	6.0	7.3	7.7	5.5	5.2	5.4	6.1	6.4	5.3	6.2
2020	6.8	10.6	7.8	5.8	6.6	6.4	7.1	7.0	6.7	7.6	8.9	9.2
2021	8.9	8.8	9.3	7.2	7.3	6.8	6.5	7.8	7.6	9.5	7.4	6.4
2022	8.4	10.1	8.6	6.8	7.0	5.9	6.6	6.1	6.7	7.5	8.9	6.9
2023	8.3	8.4	6.8	6.9	6.0	6.2	6.6	7.2	6.5	7.8	7.7	7.8
2024	7.8	8.9	7.6	8.6	5.9	6.3	6.8	6.2	7.3	7.2	9.3	7.8
2025	8.6	6.0	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
1980	M	M	M	M	M	M	M	M	M	85.25	79.40	73.63
1981	72.16	77.25	75.44	84.23	87.50	89.83	90.86	97.50	91.67	87.38	78.50	77.00
1982	71.78	75.67	72.00	M	84.00	95.00	M	95.00	83.00	86.80	78.50	M
1983	M	M	77.67	75.33	87.50	93.83	94.54	89.82	94.50	90.40	80.00	73.14
1984	68.80	74.33	79.00	78.75	84.33	91.75	92.33	95.00	93.00	83.00	74.00	73.50
1985	M	M	M	M	90.00	M	96.00	M	M	M	76.40	M
1986	M	M	M	M	M	M	M	M	M	M	76.00	75.00
1987	73.50	73.00	72.40	85.00	82.00	93.14	96.17	96.00	89.50	92.00	78.00	M
1988	M	M	M	M	M	94.50	M	M	M	M	M	M
1989	67.75	71.50	76.29	86.08	87.45	93.71	94.93	95.04	92.50	87.30	80.31	72.62
1990	76.50	73.50	77.30	75.25	89.89	96.20	94.00	M	M	91.56	79.54	78.33
1991	M	M	22.91	27.07	31.88	41.73	65.06	63.32	68.90	59.58	80.10	72.81
1992	70.32	75.03	76.52	79.69	86.00	94.88	94.32	94.76	92.90	89.43	85.00	M
1993	74.00	73.50	75.86	M	M	M	93.78	93.44	91.27	87.25	77.29	M
1994	75.85	75.50	80.33	83.60	87.50	92.73	95.00	94.50	93.25	89.12	79.14	70.40
1995	70.00	M	78.00	81.71	84.96	91.24	95.37	93.67	95.00	M	83.30	76.00
1996	73.38	76.89	78.80	84.36	87.78	M	M	90.00	89.09	92.22	78.61	72.50
1997	66.50	M	79.57	81.08	88.68	91.96	97.52	96.43	93.83	87.69	83.33	72.94
1998	75.90	74.14	77.03	81.07	85.45	94.28	97.10	97.35	96.50	92.27	82.52	74.37
1999	75.27	77.36	78.68	81.20	88.87	93.97	96.45	97.16	95.97	92.77	84.32	74.19
2000	76.45	76.43	78.16	84.54	88.74	91.87	96.58	95.61	94.60	87.74	76.63	76.68
2001	70.84	72.63	77.87	79.21	88.11	92.54	94.47	96.61	95.80	89.40	82.81	74.10
2002	73.69	76.68	75.43	83.71	86.12	89.24	91.65	93.61	92.06	86.70	80.42	75.01
2003	77.75	78.46	79.29	81.56	88.84	93.63	96.12	94.86	92.98	90.85	81.46	74.11
2004	M	66.20	M	M	M	90.27	89.26	91.01	89.60	81.24	73.27	70.77
2005	72.41	72.31	76.83	81.02	86.75	91.46	94.65	M	87.80	88.61	83.66	76.42
2006	74.48	73.29	74.07	75.20	83.30	89.22	90.09	91.55	88.10	88.40	78.20	72.50
2007	70.61	76.50	79.79	81.41	88.50	94.28	93.20	95.06	93.44	88.61	81.44	71.02
2008	70.26	73.77	77.87	84.08	86.29	91.76	93.95	92.68	92.06	90.76	77.90	68.90
2009	72.94	75.14	77.35	80.30	89.14	91.52	95.99	95.29	93.63	86.06	81.62	74.04
2010	73.63	73.21	76.88	78.02	86.00	91.64	93.55	95.64	94.10	87.34	79.58	75.37
2011	71.47	70.11	75.75	79.58	84.10	88.28	91.68	94.84	95.36	90.59	78.80	70.67
2012	74.74	72.34	77.06	80.60	89.14	93.02	94.94	94.59	92.72	88.26	82.64	74.50
2013	70.09	71.41	80.89	81.38	86.75	92.42	93.14	94.71	93.26	86.93	80.36	73.17
2014	75.95	77.19	79.67	84.14	89.89	94.70	94.30	93.72	90.69	88.55	81.20	75.43
2015	72.94	77.32	79.55	80.42	83.91	93.14	94.42	95.17	92.24	89.02	80.36	75.08
2016	74.33	81.22	79.21	80.90	84.37	92.54	93.66	93.90	91.04	90.76	82.10	73.98
2017	71.89	76.04	81.12	84.38	85.30	90.80	94.30	94.59	90.80	92.04	85.70	75.90
2018	77.29	73.79	78.80	84.80	88.09	92.60	95.17	94.01	93.80	86.12	79.88	74.97
2019	73.17	71.41	76.54	82.22	82.86	91.28	93.95	94.54	90.80	87.86	80.30	74.33
2020	73.81	74.89	74.27	81.62	87.92	92.78	92.97	94.01	94.70	91.57	82.58	73.63
2021	71.66	73.53	75.03	82.82	87.34	94.94	92.97	93.84	91.10	86.52	81.80	75.55
2022	73.46	71.34	77.29	80.12	85.25	88.28	92.50	93.08	90.10	87.16	77.30	73.86
2023	71.19	69.80	75.20	80.72	82.11	91.10	96.22	95.52	96.20	88.85	82.16	75.90
2024	72.06	73.46	75.20	80.30	87.97	92.30	93.66	94.71	94.04	92.21	79.28	77.23
2025	70.85	75.69	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
1980	M	M	M	M	M	M	M	M	M	68.00	62.93	56.79
1981	58.00	58.94	57.67	65.38	69.25	71.83	80.00	84.00	77.00	72.38	62.50	57.60
1982	51.44	56.00	54.00	M	64.67	69.00	M	84.00	76.00	69.20	62.00	M
1983	M	M	58.33	57.67	66.83	76.17	82.85	78.82	81.00	72.00	63.89	56.57
1984	55.60	53.67	57.50	58.50	60.33	72.00	76.67	82.00	79.00	72.00	56.33	61.00
1985	M	M	M	M	68.00	M	77.00	M	M	M	59.00	M
1986	M	M	M	M	M	M	M	M	M	M	61.00	54.00
1987	56.50	52.50	54.80	62.00	67.50	71.71	78.67	78.00	78.00	73.00	60.00	M
1988	M	M	M	M	M	79.00	M	M	M	M	M	M
1989	51.50	54.50	56.94	62.92	66.09	75.57	81.20	81.54	67.50	69.60	64.44	56.19
1990	59.00	55.79	60.55	61.75	76.67	83.20	84.00	M	M	76.56	67.46	66.00
1991	M	M	17.00	20.67	23.92	27.23	29.48	31.52	31.37	28.58	67.03	59.23
1992	58.90	59.38	61.58	67.69	77.00	75.38	80.76	81.92	80.81	73.00	71.67	M
1993	57.67	54.33	58.14	M	M	M	78.22	81.78	76.00	71.50	70.43	M
1994	55.62	52.75	59.33	64.80	65.00	75.18	80.67	82.75	80.25	73.38	64.00	59.80
1995	51.00	M	56.33	60.88	69.26	77.05	82.23	80.33	81.90	M	63.80	58.20
1996	52.08	58.78	58.10	61.00	68.56	M	M	79.00	75.00	73.44	63.50	56.35
1997	51.00	M	59.61	62.85	72.88	77.57	82.35	83.79	82.46	73.88	64.27	58.00
1998	56.68	55.82	59.13	62.00	66.90	76.62	84.00	83.32	80.90	81.27	62.07	56.53
1999	55.40	54.71	55.52	61.63	67.65	75.63	81.74	81.84	81.77	76.03	67.00	59.19
2000	59.12	60.46	59.90	68.05	72.10	77.10	82.58	83.54	79.73	73.97	62.13	56.87
2001	60.03	63.11	59.08	70.28	76.41	78.55	78.43	77.93	82.64	72.82	73.19	63.12
2002	61.90	64.46	64.80	69.92	75.84	78.08	74.52	82.15	67.51	62.48	68.77	58.04
2003	59.78	58.04	58.57	64.95	66.61	75.17	66.21	56.03	62.37	58.29	61.02	57.15
2004	M	64.40	M	M	M	89.15	88.03	90.24	89.18	79.06	72.37	70.63
2005	61.55	61.44	65.33	68.30	73.17	76.70	83.91	M	87.80	76.19	71.72	64.40
2006	62.36	71.81	70.92	72.68	82.06	87.89	89.35	90.95	87.20	88.40	75.20	71.47
2007	59.35	62.60	66.26	68.74	72.70	79.88	81.76	83.91	82.22	75.78	69.86	60.51
2008	59.70	60.55	65.27	71.06	73.05	78.98	83.91	82.81	81.14	78.51	76.70	67.70
2009	64.40	63.89	66.20	67.34	75.08	79.64	84.72	84.90	81.90	74.27	69.80	62.08
2010	63.06	61.89	65.21	67.16	72.59	78.20	81.99	84.32	83.60	74.74	67.04	63.12
2011	62.28	65.42	68.90	74.81	79.00	84.80	87.14	89.85	85.70	79.32	66.68	60.22
2012	63.41	60.30	63.76	67.16	74.50	79.28	83.50	83.56	81.44	73.81	70.58	63.06
2013	58.77	60.48	67.01	67.64	75.26	79.10	83.45	83.79	80.42	73.69	69.20	63.59
2014	64.57	65.69	68.29	72.02	76.65	84.86	84.90	85.13	81.63	77.17	70.70	65.27
2015	62.66	65.17	68.35	70.64	71.60	80.42	82.46	86.00	82.22	76.83	69.74	63.12
2016	61.90	68.12	67.30	69.86	72.24	79.82	84.90	83.91	80.60	80.02	71.66	63.06
2017	61.03	64.08	67.94	70.70	71.95	77.84	83.27	85.83	80.12	75.66	69.08	65.27
2018	63.70	63.95	64.34	67.28	74.27	80.12	83.85	83.85	83.78	75.03	68.66	63.24
2019	62.14	60.61	64.86	70.04	70.44	79.28	83.91	84.66	80.72	76.13	70.58	61.85
2020	61.67	63.34	64.40	70.10	79.61	85.28	82.52	83.21	84.92	80.19	71.66	62.72
2021	61.50	62.09	62.89	69.74	73.57	81.74	84.37	84.26	82.10	76.07	72.20	65.33
2022	63.53	61.19	66.61	68.96	74.50	78.14	83.45	84.26	80.35	74.15	64.82	62.60
2023	60.16	58.87	64.17	68.84	72.70	82.22	88.26	87.86	86.30	78.68	71.42	65.62
2024	61.09	62.72	64.86	70.04	77.52	83.00	85.13	87.10	84.08	81.35	66.86	65.27
2025	59.75	62.03	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
1980	M	M	M	M	M	M	M	M	M	76.62	71.17	65.21
1981	65.08	68.09	66.56	74.81	78.38	80.83	85.43	90.75	84.33	79.88	70.50	67.30
1982	61.61	65.83	63.00	M	74.33	82.00	M	89.50	79.50	78.00	70.25	M
1983	M	M	68.00	66.50	77.17	85.00	88.69	84.32	87.75	81.20	71.94	64.86
1984	62.20	64.00	68.25	68.62	72.33	81.88	84.50	88.50	86.00	77.50	65.17	67.25
1985	M	M	M	M	79.00	M	86.50	M	M	M	67.70	M
1986	M	M	M	M	M	M	M	M	M	M	68.50	64.50
1987	65.00	62.75	63.60	73.50	74.75	82.43	87.42	87.00	83.75	82.50	69.00	M
1988	M	M	M	M	M	86.75	M	M	M	M	M	M
1989	59.62	63.00	66.62	74.50	76.77	84.64	88.07	88.29	80.00	78.45	72.38	64.41
1990	67.75	64.64	68.92	68.50	83.28	89.70	89.00	M	M	84.06	73.50	72.17
1991	M	M	19.95	23.87	27.90	34.48	47.27	47.42	50.13	44.08	73.57	66.02
1992	64.61	67.21	69.05	73.69	81.50	85.12	87.54	88.34	86.86	81.21	78.33	M
1993	65.83	63.92	67.00	M	M	M	86.00	87.61	83.64	79.38	73.86	M
1994	65.73	64.12	69.83	74.20	76.25	83.95	87.83	88.62	86.75	81.25	71.57	65.10
1995	60.50	M	67.17	71.29	77.11	84.14	88.80	87.00	88.45	M	73.55	67.10
1996	62.73	67.83	68.45	72.68	78.17	M	M	84.50	82.05	82.83	71.05	64.42
1997	58.75	M	69.59	71.96	80.78	84.77	89.93	90.11	88.15	80.79	73.80	65.47
1998	66.29	64.98	68.08	71.53	76.18	85.45	90.55	90.34	88.70	86.77	72.30	65.45
1999	65.33	66.04	67.10	71.42	78.26	84.80	89.10	89.50	88.87	84.40	75.66	66.69
2000	67.78	68.44	69.03	76.29	80.42	84.48	89.58	89.57	87.17	80.85	69.38	66.77
2001	65.43	67.87	68.48	74.75	82.26	85.55	86.45	87.27	89.22	81.11	78.00	68.61
2002	67.80	70.57	70.12	76.82	80.98	83.66	83.08	87.88	79.79	74.59	74.60	66.53
2003	68.76	68.25	68.64	73.25	77.72	84.40	81.16	75.45	77.67	74.57	71.24	65.63
2004	M	65.30	M	M	M	89.71	88.64	90.63	89.39	80.15	72.82	70.70
2005	66.98	66.88	71.08	74.66	79.96	84.08	89.28	M	87.80	82.40	77.69	70.41
2006	68.42	72.55	72.50	73.94	82.68	88.56	89.72	91.25	87.65	88.40	76.70	71.99
2007	64.98	69.55	73.02	75.08	80.60	87.08	87.48	89.48	87.83	82.20	75.65	65.76
2008	64.98	67.16	71.57	77.57	79.67	85.37	88.93	87.74	86.60	84.64	77.30	68.30
2009	68.67	69.51	71.77	73.82	82.11	85.58	90.35	90.09	87.77	80.16	75.71	68.06
2010	68.35	67.55	71.05	72.59	79.29	84.92	87.77	89.98	88.85	81.04	73.31	69.25
2011	66.88	67.77	72.33	77.20	81.55	86.54	89.41	92.34	90.53	84.95	72.74	65.45
2012	69.07	66.32	70.41	73.88	81.82	86.15	89.22	89.08	87.08	81.04	76.61	68.78
2013	64.43	65.94	73.95	74.51	81.01	85.76	88.29	89.25	86.84	80.31	74.78	68.38
2014	70.26	71.44	73.98	78.08	83.27	89.78	89.60	89.43	86.16	82.86	75.95	70.35
2015	67.80	71.25	73.95	75.53	77.75	86.78	88.44	90.59	87.23	82.92	75.05	69.10
2016	68.12	74.67	73.25	75.38	78.31	86.18	89.28	88.90	85.82	85.39	76.88	68.52
2017	66.46	70.06	74.53	77.54	78.63	84.32	88.79	90.21	85.46	83.85	77.39	70.58
2018	70.50	68.87	71.57	76.04	81.18	86.36	89.51	88.93	88.79	80.57	74.27	69.10
2019	67.65	66.01	70.70	76.13	76.65	85.28	88.93	89.60	85.76	81.99	75.44	68.09
2020	67.74	69.12	69.34	75.86	83.76	89.03	87.74	88.61	89.81	85.88	77.12	68.17
2021	66.58	67.81	68.96	76.28	80.45	88.34	88.67	89.05	86.60	81.30	77.00	70.44
2022	68.49	66.26	71.95	74.54	79.87	83.21	87.97	88.67	85.22	80.66	71.06	68.23
2023	65.68	64.34	69.68	74.78	77.41	86.66	92.24	91.69	91.25	83.76	76.79	70.76
2024	66.58	68.09	70.03	75.17	82.75	87.65	89.40	90.91	89.06	86.78	73.07	71.25
2025	65.30	68.86	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.

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
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	M	M	M	M	M	M
1984	M	M	M	M	M	M	M	M	M	M	M	M
1985	M	M	M	M	M	M	M	M	M	M	M	M
1986	M	M	M	M	M	M	M	M	M	M	M	M
1987	M	M	M	M	M	M	M	M	M	M	M	M
1988	M	M	M	M	M	M	M	M	M	M	M	M
1989	M	M	65.9%	48.6%	53.7%	45.4%	71.1%	70.4%	M	75.2%	74.4%	75.6%
1990	M	71.8%	65.5%	68.0%	65.8%	M	M	M	M	M	M	M
1991	M	M	69.0%	59.6%	60.9%	56.9%	63.1%	67.1%	71.4%	63.6%	58.0%	70.9%
1992	71.9%	69.6%	64.7%	55.0%	M	62.5%	58.6%	66.9%	84.2%	67.2%	M	M
1993	M	M	M	M	M	M	M	M	M	54.2%	75.3%	M
1994	46.0%	56.7%	62.8%	M	M	M	M	M	59.8%	M	M	81.0%
1995	M	M	M	M	57.3%	59.7%	56.3%	64.5%	71.8%	M	56.6%	63.3%
1996	54.2%	67.0%	51.4%	47.3%	46.7%	M	M	70.8%	60.5%	51.8%	61.3%	M
1997	M	M	43.6%	51.1%	32.7%	50.4%	50.6%	63.1%	70.0%	56.8%	61.2%	61.7%
1998	64.2%	59.5%	53.3%	46.6%	48.4%	47.8%	61.0%	65.8%	58.1%	52.2%	55.6%	55.2%
1999	47.0%	46.2%	49.9%	44.5%	44.2%	51.1%	57.1%	61.6%	59.7%	45.0%	48.9%	51.5%
2000	47.7%	52.6%	50.1%	47.5%	47.3%	60.6%	55.4%	60.9%	60.7%	59.3%	53.4%	51.0%
2001	56.3%	52.0%	53.4%	47.4%	40.4%	51.3%	57.9%	59.3%	58.1%	59.1%	60.9%	52.9%
2002	49.6%	43.8%	46.9%	51.9%	51.6%	57.0%	57.9%	55.7%	56.9%	55.2%	55.9%	60.7%
2003	56.4%	60.3%	53.1%	52.0%	54.2%	48.7%	60.5%	65.4%	68.3%	58.3%	56.9%	57.7%
2004	68.7%	58.2%	52.3%	50.6%	49.2%	51.9%	57.5%	58.7%	62.5%	58.6%	63.7%	62.8%
2005	69.4%	70.7%	56.3%	50.7%	55.4%	54.4%	63.1%	61.2%	54.3%	59.7%	55.9%	55.3%
2006	50.5%	51.6%	54.2%	49.9%	45.7%	49.4%	60.3%	64.3%	65.1%	60.4%	56.1%	58.1%
2007	59.7%	54.2%	48.0%	49.7%	45.5%	53.1%	62.0%	65.4%	67.6%	58.4%	63.2%	65.0%
2008	63.7%	55.9%	52.8%	47.2%	50.5%	58.9%	58.1%	64.7%	68.1%	56.1%	57.3%	64.6%
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	69.4%	63.9%	62.4%	58.3%	62.7%	62.9%
2012	52.4%	57.0%	53.3%	58.0%	51.5%	57.5%	60.5%	68.9%	69.7%	63.8%	64.6%	68.3%
2013	65.3%	64.5%	57.6%	60.1%	58.6%	62.3%	67.5%	69.1%	66.9%	63.7%	68.0%	55.2%
2014	50.3%	56.8%	58.3%	55.4%	49.4%	51.5%	61.8%	63.5%	70.5%	60.2%	59.7%	62.0%
2015	65.5%	63.1%	62.2%	59.9%	62.8%	63.7%	63.8%	65.8%	71.3%	70.3%	64.7%	66.8%
2016	63.5%	48.4%	56.8%	60.4%	61.7%	58.1%	60.2%	65.5%	65.3%	57.4%	61.5%	64.5%
2017	61.7%	60.7%	57.5%	57.4%	56.3%	61.2%	66.2%	70.5%	70.0%	57.6%	61.8%	66.4%
2018	57.2%	66.8%	56.7%	53.3%	54.1%	60.7%	65.6%	70.7%	65.6%	63.5%	65.1%	66.7%
2019	65.1%	68.1%	56.7%	56.2%	60.5%	55.3%	63.5%	64.6%	69.7%	61.0%	68.8%	69.7%
2020	61.3%	55.8%	65.0%	56.1%	55.5%	57.8%	65.4%	67.1%	60.3%	52.8%	56.6%	56.7%
2021	54.5%	51.8%	54.4%	55.0%	55.8%	54.4%	65.2%	63.5%	65.8%	58.6%	56.5%	60.6%
2022	50.8%	49.7%	36.9%	54.2%	44.5%	63.9%	65.1%	62.6%	71.3%	56.3%	60.0%	61.7%
2023	55.1%	56.2%	51.7%	43.9%	49.1%	46.4%	57.8%	61.6%	53.5%	56.6%	60.8%	56.8%
2024	57.5%	57.6%	51.3%	47.4%	45.5%	53.1%	60.7%	62.4%	59.5%	52.4%	52.1%	49.9%
2025	52.8%	50.0%	M	M	M	M	M	M	M	M	M	M