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
1977	M	M	M	M	M	M	0.00	0.00	0.00	0.00	0.00	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	0.00
1981	M	M	M	M	M	M	0.00	M	0.00	M	M	M
1982	M	M	M	M	M	M	M	0.00	0.00	0.00	0.00	M
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	M	0.00	0.00	0.00	0.00	0.00	M	0.00
1985	0.00	0.00	M	0.00	M	0.00	0.00	M	0.00	0.00	M	M
1986	M	M	M	M	M	M	M	M	M	M	M	M
1987	M	M	M	M	M	M	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	M	M	M	M
1989	M	0.00	0.00	0.00	0.00	0.00	0.00	0.00	M	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	M	M	M	M	M	M
1993	M	M	M	M	M	M	M	M	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	0.07	1.57	3.82	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1998	0.00	0.00	0.00	0.00	0.04	0.09	0.00	0.00	0.04	0.00	0.00	0.00
1999	0.00	0.00	0.00	0.02	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	0.39	0.00	0.00	0.00
2003	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	2.13	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
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	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	9.0	7.1	7.5	6.7	7.1	7.8	M	9.4	7.8	5.8
1990	7.4	6.0	4.9	0.7	0.7	3.1	0.0	3.9	1.8	2.9	M	M
1991	M	1.0	M	M	M	M	1.3	M	5.6	4.3	1.0	M
1992	M	3.0	3.2	6.5	M	4.9	M	M	M	M	M	M
1993	M	M	M	M	M	M	M	M	14.1	10.7	6.9	8.9
1994	12.1	10.5	11.4	11.6	11.0	9.6	M	7.3	13.1	8.0	11.1	11.4
1995	10.4	11.9	11.4	10.7	10.5	11.8	13.7	12.5	11.6	12.2	11.5	9.9
1996	10.8	11.1	11.4	10.6	9.6	10.6	10.9	9.9	7.3	7.9	8.8	5.9
1997	6.3	7.9	6.7	5.8	8.0	7.8	11.2	9.9	11.2	9.2	9.1	9.2
1998	8.9	10.8	10.9	11.1	9.4	8.7	10.5	8.8	7.1	9.4	7.6	9.7
1999	10.2	9.4	10.3	9.9	10.2	10.5	10.3	9.9	11.5	11.9	11.9	10.4
2000	10.6	10.8	9.1	10.9	9.3	10.0	10.2	10.9	10.8	11.4	9.7	10.5
2001	10.6	15.2	12.0	11.4	9.8	9.3	8.8	9.4	9.2	10.8	8.4	8.5
2002	8.4	9.5	10.8	9.8	9.8	8.6	8.6	10.7	8.2	8.0	9.3	8.3
2003	9.3	9.8	10.6	9.7	10.1	9.7	9.9	8.5	8.8	8.8	9.4	9.7
2004	9.8	9.2	10.9	9.5	9.9	8.9	8.5	9.0	8.9	7.9	7.8	7.2
2005	7.2	7.2	7.8	8.1	7.5	9.4	7.9	7.6	8.8	8.2	7.7	5.9
2006	7.0	6.9	7.8	8.1	7.2	8.8	8.7	8.1	7.5	7.0	7.5	6.8
2007	6.9	7.1	7.1	7.5	7.5	6.9	6.0	7.9	7.6	7.3	7.4	5.1
2008	6.8	6.3	8.0	8.0	7.7	8.4	7.1	6.1	7.9	8.8	7.1	5.4
2009	6.2	7.7	7.8	8.1	8.3	7.8	8.1	8.8	7.5	6.4	7.2	6.6
2010	6.9	6.6	7.7	7.1	7.1	8.0	7.8	8.8	7.7	7.3	6.5	6.1
2011	6.9	7.2	7.8	8.0	7.8	8.7	9.3	8.1	7.6	7.7	6.4	5.8
2012	6.1	6.5	7.6	8.1	8.3	8.3	8.0	7.8	7.2	7.2	7.2	5.6
2013	6.1	7.2	8.8	8.4	9.0	8.4	5.5	5.7	4.8	4.9	5.4	4.7
2014	4.9	3.7	5.9	7.2	6.2	6.0	6.2	6.3	7.6	7.2	6.8	6.3
2015	7.0	7.5	7.5	6.9	6.1	6.3	6.1	6.9	6.7	7.0	6.6	6.2
2016	6.5	7.9	7.9	7.5	7.3	7.4	6.4	6.5	7.8	7.9	7.8	7.1
2017	6.6	6.9	7.9	8.5	7.8	7.9	6.9	6.9	7.2	7.8	6.8	6.2
2018	7.6	6.6	10.0	8.0	7.4	6.5	6.8	7.1	5.7	7.2	4.6	5.6
2019	6.5	6.8	7.4	7.7	7.7	7.6	6.4	6.2	7.1	6.9	6.6	5.8
2020	6.7	7.6	7.5	7.4	7.2	8.3	6.4	7.9	7.2	7.3	7.5	6.1
2021	5.6	7.0	7.9	8.4	8.1	7.0	7.0	7.7	5.9	6.1	9.2	4.6
2022	5.9	7.4	8.4	8.2	7.8	10.0	8.3	7.3	9.6	8.4	6.8	7.0
2023	6.2	7.4	8.0	9.4	8.6	9.6	9.4	9.4	9.0	8.9	8.6	8.0
2024	7.6	7.5	9.3	9.9	9.5	9.5	8.3	9.5	8.6	10.3	7.4	7.9
2025	8.0	7.9	9.9	9.9	8.8	8.6	7.5	8.7	9.4	10.8	M	M

Average Daily High Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1977	M	M	M	M	M	M	77.56	77.93	75.90	75.80	72.56	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	75.00
1981	M	M	M	M	M	M	77.00	M	84.00	M	M	M
1982	M	M	M	M	M	M	M	80.00	78.33	75.67	72.00	M
1983	60.33	72.33	81.00	83.00	90.50	84.00	74.50	76.00	78.33	71.33	74.00	66.50
1984	69.50	69.00	79.88	81.50	M	84.00	73.50	79.50	66.50	76.00	M	64.00
1985	75.00	74.00	M	69.00	M	76.00	75.50	M	77.00	74.00	M	M
1986	M	M	M	M	M	M	M	M	M	M	M	M
1987	M	M	M	M	M	M	83.00	78.33	77.00	72.50	75.00	76.00
1988	68.00	76.00	70.00	85.00	87.00	78.50	74.25	80.00	M	M	M	M
1989	M	73.50	77.89	81.06	85.26	81.26	80.06	74.72	M	73.27	76.29	69.10
1990	72.72	72.56	78.23	79.59	81.71	81.11	75.62	75.88	76.53	75.69	75.38	71.88
1991	73.55	73.25	82.11	85.86	86.30	78.25	73.25	79.50	74.20	70.71	72.10	66.00
1992	64.50	71.67	78.00	77.25	80.50	79.12	M	M	M	M	M	M
1993	M	M	M	M	M	M	M	M	23.44	22.71	24.59	22.54
1994	21.58	23.92	26.00	25.62	27.48	25.80	M	73.50	69.75	77.00	73.78	72.53
1995	70.37	73.09	76.73	81.72	84.28	81.12	76.04	76.72	77.63	76.39	74.54	69.93
1996	72.65	75.55	75.69	79.83	84.21	79.74	78.52	76.65	76.30	74.63	72.93	73.19
1997	71.23	75.04	77.84	77.93	80.94	83.20	79.90	80.42	79.27	74.90	75.63	71.90
1998	70.59	73.86	79.29	85.60	89.65	86.77	80.74	78.16	76.50	72.97	76.03	72.29
1999	71.68	74.50	78.16	83.37	84.77	80.47	75.00	77.42	74.37	73.23	71.47	68.35
2000	71.70	73.40	78.68	81.79	80.04	75.55	77.65	75.72	76.70	76.84	74.70	69.02
2001	80.45	76.34	75.91	82.15	92.73	84.55	89.65	81.68	82.99	74.86	73.72	74.59
2002	72.25	74.37	78.67	84.37	86.33	81.65	78.87	83.25	75.93	80.71	71.65	71.58
2003	71.60	78.83	80.17	85.72	88.64	82.09	80.89	80.76	77.51	77.05	75.92	72.01
2004	M	77.00	M	M	M	71.78	72.26	71.91	71.03	71.47	61.33	54.78
2005	72.82	74.62	79.44	85.64	84.55	84.14	79.90	M	71.60	76.30	74.42	74.10
2006	71.89	59.84	64.04	67.58	75.31	73.31	69.02	70.60	65.30	62.60	53.41	55.70
2007	72.18	75.50	79.90	82.34	83.68	81.38	78.39	77.00	77.06	75.61	72.03	58.85
2008	59.26	58.89	69.33	71.60	77.13	72.02	67.79	71.24	65.90	61.90	52.31	43.31
2009	59.48	63.43	66.97	74.60	73.47	71.40	68.90	74.22	71.86	69.35	62.98	61.70
2010	54.93	57.84	66.92	69.44	71.71	68.95	67.00	78.63	78.26	77.64	75.62	72.59
2011	72.84	72.29	72.80	80.02	81.75	71.35	70.67	73.98	77.78	77.00	76.40	75.61
2012	72.56	72.22	80.83	83.30	85.64	82.28	77.64	78.57	78.02	79.88	74.96	75.20
2013	73.57	79.89	77.58	85.22	84.43	81.62	79.61	81.82	78.32	80.37	75.80	73.40
2014	74.04	82.21	84.43	85.46	82.11	81.32	80.37	81.18	75.56	75.08	73.04	71.48
2015	71.37	73.85	74.50	80.30	80.25	78.80	79.96	78.80	77.60	76.65	75.92	72.06
2016	70.38	73.96	76.54	83.00	86.29	78.38	77.64	77.87	76.22	75.26	70.52	74.62
2017	74.04	76.94	77.70	82.34	86.06	82.34	76.65	78.39	74.96	73.81	75.68	72.82
2018	69.22	75.71	81.82	82.28	84.08	79.34	78.86	77.93	76.64	74.27	71.36	71.66
2019	72.24	78.29	81.76	83.00	86.87	81.02	79.32	80.43	77.60	76.25	75.32	72.06
2020	71.31	75.76	82.23	86.30	83.97	81.44	80.66	77.81	75.44	77.64	75.14	73.57
2021	73.40	77.77	83.10	84.62	82.86	76.88	76.65	77.75	75.14	75.66	73.46	75.66
2022	73.57	75.39	81.06	84.68	87.28	80.66	81.70	79.38	73.88	76.54	76.64	72.41
2023	74.74	77.00	82.46	83.78	84.20	89.12	82.17	79.09	83.00	76.54	74.96	67.42
2024	74.39	78.80	83.91	86.60	92.27	83.54	77.23	79.09	77.30	75.32	79.34	74.79
2025	75.03	78.86	82.75	85.70	86.93	75.86	75.84	78.97	77.54	74.30	M	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1977	M	M	M	M	M	M	58.25	59.29	60.30	55.70	49.89	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	48.00
1981	M	M	M	M	M	M	61.00	M	59.00	M	M	M
1982	M	M	M	M	M	M	M	59.00	59.67	60.67	50.50	M
1983	45.33	45.50	47.00	55.33	61.00	60.60	59.75	59.00	60.00	54.67	53.50	44.50
1984	43.50	44.67	54.38	56.00	M	58.00	58.75	57.50	58.50	54.50	M	49.00
1985	49.00	46.00	M	53.00	M	59.00	59.50	M	56.00	46.00	M	M
1986	M	M	M	M	M	M	M	M	M	M	M	M
1987	M	M	M	M	M	M	59.00	61.33	58.00	51.67	49.00	51.00
1988	37.50	50.40	54.50	55.00	64.00	63.00	60.00	62.00	M	M	M	M
1989	M	51.50	49.47	54.35	57.89	59.95	59.06	58.94	M	50.55	52.29	47.95
1990	48.68	50.94	52.45	55.41	58.21	59.84	58.12	57.65	57.47	56.69	50.62	46.88
1991	48.73	49.62	56.44	58.57	59.40	59.62	58.00	56.92	57.00	56.29	50.90	45.33
1992	52.00	52.67	56.05	57.58	62.50	62.50	M	M	M	M	M	M
1993	M	M	M	M	M	M	M	M	15.89	13.43	13.06	10.15
1994	10.54	11.32	14.47	14.96	16.71	15.44	M	60.00	61.38	59.80	53.00	53.00
1995	51.85	53.52	55.00	60.64	63.56	62.04	60.19	62.21	59.07	53.97	52.21	51.22
1996	46.74	49.93	51.55	56.87	62.47	60.04	58.83	58.71	58.33	53.33	48.62	48.58
1997	45.29	49.57	53.19	54.23	56.19	59.97	58.74	57.97	58.00	53.61	52.67	46.48
1998	47.97	48.07	51.32	58.43	62.87	62.63	59.77	59.84	61.10	56.77	53.03	47.36
1999	45.00	48.86	53.23	57.23	59.16	59.50	56.74	56.94	55.30	50.77	45.70	44.58
2000	48.23	52.55	54.52	57.41	59.80	57.93	56.71	56.62	55.77	52.42	53.17	46.73
2001	47.55	49.42	51.91	54.17	57.36	51.88	47.76	52.05	52.13	49.94	48.37	47.68
2002	46.51	47.16	53.14	54.91	54.09	54.77	52.80	53.64	53.22	47.85	45.73	46.52
2003	44.72	48.84	49.42	54.05	53.68	55.97	51.69	43.55	43.77	51.25	47.33	40.98
2004	M	60.80	M	M	M	67.82	67.05	68.70	70.08	65.30	49.40	44.48
2005	41.75	45.11	45.82	53.42	55.40	59.84	58.19	M	59.00	52.32	44.96	40.42
2006	38.56	45.50	48.56	61.75	70.44	68.60	65.18	67.60	63.05	62.60	45.37	43.62
2007	44.14	44.02	46.11	51.74	55.11	57.62	57.61	55.75	54.92	47.85	47.33	46.10
2008	47.94	47.25	53.32	60.98	65.69	59.28	59.64	60.89	58.60	54.80	51.29	41.77
2009	52.76	48.20	55.83	59.40	65.60	61.30	59.64	60.57	62.43	56.48	50.09	46.40
2010	43.43	49.36	49.19	56.12	62.81	61.84	61.30	56.68	56.42	44.19	38.36	33.16
2011	38.89	48.96	51.56	57.97	60.08	59.33	60.07	60.55	51.32	45.76	42.32	40.71
2012	41.00	46.96	46.34	48.86	53.48	56.12	57.32	56.33	53.96	47.79	45.98	41.17
2013	42.92	43.19	43.50	51.80	55.34	56.96	56.62	54.99	57.62	51.97	49.82	44.37
2014	40.01	44.79	50.12	54.20	54.99	57.44	56.91	55.57	56.78	50.99	45.74	43.09
2015	40.83	42.99	47.10	51.98	54.59	55.76	54.59	54.24	55.16	52.09	50.00	43.85
2016	39.55	39.26	46.28	50.60	56.15	57.02	55.81	56.10	55.10	51.45	47.96	44.31
2017	38.74	41.71	47.56	49.22	56.56	56.96	56.45	56.68	55.46	50.35	42.62	38.97
2018	38.97	45.89	48.49	51.62	54.94	56.48	54.82	55.63	56.54	55.28	45.68	40.30
2019	41.41	44.28	48.26	50.18	56.04	57.14	55.46	55.75	55.10	54.24	49.88	41.29
2020	42.05	44.48	50.23	55.46	54.30	56.60	56.74	57.43	53.54	45.70	44.78	42.34
2021	41.35	41.06	47.79	51.56	55.34	57.14	57.03	56.56	56.90	52.50	44.36	39.37
2022	41.81	42.80	44.48	52.16	54.70	55.88	56.10	56.56	54.80	50.46	48.26	41.41
2023	39.49	43.38	48.90	53.60	54.76	57.44	58.42	57.55	54.98	55.17	47.48	46.57
2024	44.25	44.41	48.72	54.86	61.96	60.56	59.52	57.26	59.06	50.35	45.86	42.80
2025	43.90	46.79	48.66	50.18	58.71	59.96	56.15	56.04	58.04	49.10	M	M

Average Daily Temperature (high+low)/2 [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1977	M	M	M	M	M	M	67.91	68.61	68.10	65.75	61.22	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	61.50
1981	M	M	M	M	M	M	69.00	M	71.50	M	M	M
1982	M	M	M	M	M	M	M	69.50	69.00	68.17	61.25	M
1983	52.83	58.92	64.00	69.17	75.75	72.30	67.12	67.50	69.17	63.00	63.75	55.50
1984	56.50	56.83	67.12	68.75	M	71.00	66.12	68.50	62.50	65.25	M	56.50
1985	62.00	60.00	M	61.00	M	67.50	67.50	M	66.50	60.00	M	M
1986	M	M	M	M	M	M	M	M	M	M	M	M
1987	M	M	M	M	M	M	71.00	69.83	67.50	62.08	62.00	63.50
1988	52.75	63.20	62.25	70.00	75.50	70.75	67.12	71.00	M	M	M	M
1989	M	62.50	63.68	67.71	71.58	70.61	69.56	66.83	M	61.91	64.29	58.52
1990	60.70	61.75	65.34	67.50	69.96	70.47	66.88	66.76	67.00	66.19	63.00	59.38
1991	61.14	61.44	69.28	72.21	72.85	68.94	65.62	68.21	65.60	63.50	61.50	55.67
1992	58.25	62.17	67.02	67.42	71.50	70.81	M	M	M	M	M	M
1993	M	M	M	M	M	M	M	M	19.67	18.07	18.82	16.35
1994	16.06	17.62	20.23	20.29	22.10	20.62	M	66.75	65.56	68.40	63.39	62.77
1995	61.11	63.30	65.87	71.18	73.92	71.58	68.11	69.47	68.35	65.18	63.38	60.57
1996	59.69	62.74	63.62	68.35	73.34	69.89	68.67	67.68	67.32	63.98	60.78	60.89
1997	58.26	62.30	65.52	66.08	68.56	71.58	69.32	69.19	68.63	64.26	64.15	59.19
1998	59.28	60.96	65.31	72.02	76.26	74.70	70.26	69.00	68.80	64.87	64.53	59.82
1999	58.34	61.68	65.69	70.30	71.97	69.98	65.87	67.18	64.83	62.00	58.58	56.47
2000	59.96	62.98	66.60	69.60	69.92	66.74	67.18	66.17	66.23	64.63	63.93	57.87
2001	64.00	62.88	63.91	68.16	75.05	68.22	68.70	66.87	67.56	62.40	61.05	61.13
2002	59.38	60.77	65.90	69.64	70.21	68.21	65.84	68.44	64.57	64.28	58.69	59.05
2003	58.24	63.81	64.71	69.59	70.81	69.24	66.59	61.57	60.13	63.99	61.52	56.49
2004	M	68.90	M	M	M	69.80	69.66	70.31	70.56	68.39	55.36	49.63
2005	57.29	59.87	62.63	69.53	69.97	71.99	69.05	M	65.30	64.31	59.69	57.26
2006	55.23	52.67	56.30	64.66	72.87	70.96	67.10	69.10	64.18	62.60	49.39	49.66
2007	58.16	59.76	63.01	67.04	69.39	69.50	68.00	66.37	65.99	61.73	59.68	52.47
2008	53.60	53.07	61.32	66.29	71.41	65.65	63.71	66.07	62.25	58.35	51.80	42.54
2009	56.12	55.82	61.40	67.00	69.54	66.35	64.27	67.40	67.14	62.92	56.54	54.05
2010	49.18	53.60	58.05	62.78	67.26	65.39	64.15	67.65	67.34	60.92	56.99	52.87
2011	55.87	60.63	62.18	69.00	70.92	65.34	65.37	67.29	64.55	61.38	59.36	58.16
2012	56.78	59.59	63.59	66.08	69.47	69.20	67.48	67.45	65.99	63.65	60.47	58.04
2013	58.25	61.54	60.54	68.51	69.89	69.29	68.12	68.41	67.97	66.17	62.81	58.88
2014	57.03	63.50	67.27	69.83	68.55	69.38	68.64	68.38	66.17	63.04	59.39	57.29
2015	56.10	58.42	60.80	66.14	67.42	67.28	67.27	66.52	66.38	64.37	62.96	57.95
2016	54.96	56.61	61.41	66.80	71.22	67.70	66.72	66.98	65.66	63.35	59.24	59.46
2017	56.39	59.32	62.63	65.78	71.31	69.65	66.55	67.54	65.21	62.08	59.15	55.89
2018	54.09	60.80	65.15	66.95	69.51	67.91	66.84	66.78	66.59	64.78	58.52	55.98
2019	56.82	61.28	65.01	66.59	71.45	69.08	67.39	68.09	66.35	65.24	62.60	56.68
2020	56.68	60.12	66.23	70.88	69.13	69.02	68.70	67.62	64.49	61.67	59.96	57.95
2021	57.37	59.42	65.45	68.09	69.10	67.01	66.84	67.16	66.02	64.08	58.91	57.52
2022	57.69	59.10	62.77	68.42	70.99	68.27	68.90	67.97	64.34	63.50	62.45	56.91
2023	57.11	60.19	65.68	68.69	69.48	73.28	70.29	68.32	68.99	65.85	61.22	57.00
2024	59.32	61.61	66.32	70.73	77.12	72.05	68.38	68.17	68.18	62.83	62.60	58.80
2025	59.46	62.83	65.71	67.94	72.82	67.91	66.00	67.51	67.79	61.70	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
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	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	40.4%	41.9%	44.5%	59.9%	54.3%	73.9%	M	59.5%	57.2%	66.5%
1990	58.2%	54.5%	55.3%	46.4%	55.9%	59.5%	81.9%	72.7%	72.6%	75.4%	M	M
1991	M	68.0%	M	M	M	M	76.5%	M	66.4%	59.3%	60.9%	M
1992	M	55.8%	53.9%	61.0%	M	62.6%	M	M	M	M	M	M
1993	M	M	M	M	M	M	M	M	73.4%	73.0%	69.8%	66.3%
1994	65.2%	60.1%	57.0%	58.4%	62.8%	71.4%	M	68.4%	70.6%	57.5%	59.7%	58.5%
1995	51.9%	50.6%	44.5%	40.1%	43.1%	57.8%	60.9%	65.9%	64.6%	57.7%	63.0%	56.7%
1996	50.6%	50.9%	46.8%	44.3%	47.9%	57.8%	63.3%	66.0%	72.4%	68.4%	60.9%	57.9%
1997	52.9%	52.7%	51.7%	54.8%	54.9%	59.0%	65.6%	66.2%	64.2%	61.6%	63.8%	59.1%
1998	53.0%	44.0%	47.0%	40.6%	36.2%	52.6%	66.8%	68.6%	76.4%	73.8%	69.5%	66.4%
1999	54.3%	51.3%	45.5%	40.8%	41.9%	57.9%	70.2%	67.7%	70.8%	67.5%	61.4%	61.0%
2000	56.3%	57.0%	49.1%	46.1%	53.6%	67.6%	64.5%	67.6%	65.5%	66.6%	64.5%	63.7%
2001	61.9%	58.8%	50.5%	47.5%	56.0%	72.4%	74.0%	74.3%	77.4%	72.2%	69.0%	69.2%
2002	64.9%	68.2%	58.0%	60.6%	60.9%	67.5%	77.4%	75.0%	78.4%	74.2%	70.5%	67.4%
2003	66.4%	56.5%	48.2%	46.3%	46.5%	64.0%	69.2%	69.9%	74.3%	72.0%	63.0%	55.8%
2004	64.8%	51.4%	54.3%	51.3%	56.7%	69.0%	67.3%	69.1%	71.9%	67.9%	56.6%	65.2%
2005	66.3%	63.3%	58.3%	52.2%	54.4%	58.9%	68.4%	69.8%	69.7%	69.0%	65.6%	60.5%
2006	54.5%	55.9%	49.0%	44.2%	56.1%	63.1%	68.2%	71.4%	73.3%	71.7%	66.9%	63.7%
2007	65.3%	57.6%	52.3%	50.0%	54.4%	63.0%	68.6%	70.9%	72.6%	65.9%	62.6%	61.2%
2008	60.1%	51.7%	46.0%	46.2%	50.0%	59.8%	69.4%	73.0%	74.5%	69.4%	63.6%	59.9%
2009	56.4%	52.4%	45.7%	38.6%	47.9%	53.4%	58.1%	57.5%	68.1%	69.2%	64.7%	62.0%
2010	66.1%	67.4%	49.0%	49.7%	46.5%	54.0%	68.9%	65.9%	66.9%	57.5%	53.3%	50.8%
2011	49.8%	46.2%	40.4%	36.5%	40.4%	56.6%	66.3%	64.8%	63.1%	60.9%	56.5%	55.2%
2012	57.3%	62.9%	47.5%	41.2%	39.6%	49.5%	55.6%	54.5%	57.3%	55.2%	63.5%	58.2%
2013	56.9%	48.5%	49.5%	34.6%	42.0%	51.0%	60.1%	59.0%	72.2%	68.3%	70.6%	66.1%
2014	62.2%	46.9%	45.6%	41.0%	56.7%	64.6%	67.6%	66.3%	74.4%	70.9%	66.8%	64.1%
2015	59.2%	54.6%	63.9%	56.0%	65.4%	71.3%	73.8%	69.9%	70.8%	72.0%	71.7%	65.9%
2016	56.7%	50.0%	52.4%	43.5%	51.1%	69.8%	74.1%	75.2%	75.7%	71.7%	74.2%	64.2%
2017	52.0%	46.5%	54.0%	40.3%	48.4%	59.8%	71.7%	70.1%	74.0%	72.0%	56.8%	56.6%
2018	59.4%	60.2%	45.1%	48.5%	50.9%	68.4%	65.6%	68.7%	74.8%	74.6%	72.1%	59.6%
2019	58.8%	46.6%	48.6%	36.4%	40.5%	62.7%	65.8%	66.7%	71.3%	72.0%	67.9%	61.2%
2020	59.3%	56.6%	52.7%	42.4%	47.2%	63.1%	67.7%	70.0%	71.6%	56.9%	57.6%	55.1%
2021	50.9%	38.9%	41.4%	40.1%	56.1%	71.0%	73.7%	72.2%	78.8%	73.7%	64.9%	55.6%
2022	57.5%	52.9%	39.6%	44.9%	42.5%	59.3%	63.5%	69.7%	74.8%	68.2%	65.4%	60.2%
2023	52.3%	47.1%	42.4%	42.9%	51.5%	45.1%	64.3%	68.9%	60.0%	68.0%	65.3%	74.0%
2024	49.0%	41.2%	32.2%	35.4%	32.8%	57.2%	72.9%	68.1%	74.6%	64.2%	54.9%	57.8%
2025	55.7%	48.6%	34.4%	37.1%	47.7%	74.5%	75.6%	70.0%	73.8%	71.7%	M	M