Weather archive in Nurmijarvi Geomagnetic Observatory

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Date / Local time		T	Po	P	Pa	U	DD	Ff	ff10	ff3	N	WW	W1	W2	Tn	Tx	Cl	Nh	H	Cm	Ch	VV	Td	RRR	tR	E	Tg	E'	sss
2025 September 18, Thursday	21	11.7 53	744.6 29.31 992.72 992.72	755.0 29.72 1006.58 1006.58	-0.1 -0 -0.13 -0.13	96					70 – 80%. 7/10 – 8/10. 6 oktas	No significant weather observed.			11.7 53	17.6 64		20–30%. 2/10–3/10. 2 oktas	2500 or more, or no clouds. 8202 or more, or no clouds.			20.0 12.4	11.1 52	No precipitation No precipitation	12
	20	12.4 54	744.8 29.32 992.99 992.99	755.2 29.73 1006.85 1006.85	0.1 0 0.13 0.13	94					10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	No significant weather observed.							2500 or more, or no clouds. 8202 or more, or no clouds.			20.0 12.4	11.5 53	No precipitation No precipitation	1
	19	14.2 58	744.6 29.31 992.72 992.72	754.9 29.72 1006.45 1006.45	-0.5 -0.02 -0.67 -0.67	85					70 – 80%. 7/10 – 8/10. 6 oktas	No significant weather observed.						70 – 80%. 7/10 – 8/10. 6 oktas	2500 or more, or no clouds. 8202 or more, or no clouds.			20.0 12.4	11.7 53	No precipitation No precipitation	1
	18	15.1 59	744.7 29.32 992.85 992.85	754.9 29.72 1006.45 1006.45	-0.4 -0.02 -0.53 -0.53	80					50%. 5/10. 4 oktas	No significant weather observed.							2500 or more, or no clouds. 8202 or more, or no clouds.			20.0 12.4	11.7 53	No precipitation No precipitation	1
	17	15.8 60	744.7 29.32 992.85 992.85	754.9 29.72 1006.45 1006.45	-0.7 -0.03 -0.93 -0.93	81					90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	No significant weather observed.						20–30%. 2/10–3/10. 2 oktas	2000-2500 6562-8202			20.0 12.4	12.5 55	No precipitation No precipitation	1
	16	16.4 62	745.1 29.33 993.39 993.39	755.2 29.73 1006.85 1006.85	-0.3 -0.01 -0.4 -0.4	75					10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	No significant weather observed.						10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	1500-2000 4921-6562			15.0 9.3	12.0 54	No precipitation No precipitation	1
	15	16.3 61	745.1 29.33 993.39 993.39	755.3 29.74 1006.98 1006.98	-0.3 -0.01 -0.4 -0.4	80					60%. 6/10. 5 oktas	Rain shower(s) or intermittent rain, slight.						10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	600-1000 1968-3281			20.0 12.4	12.9 55	No precipitation No precipitation	1
	14	15.9 61	745.4 29.35 993.79 993.79	755.6 29.75 1007.38 1007.38	0.0 0 0 0	83					90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	No significant weather observed.						10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	300-600 984-1968			15.0 9.3	13.0 55	No precipitation No precipitation	1
	13	15.7 60	745.4 29.35 993.79 993.79	755.7 29.75 1007.52 1007.52	0.1 0 0.13 0.13	85					90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	No significant weather observed.						10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	300-600 984-1968			20.0 12.4	13.2 56	No precipitation No precipitation	1
	12	15.1 59	745.4 29.35 993.79 993.79	755.7 29.75 1007.52 1007.52	0.1 0 0.13 0.13	86					90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	No significant weather observed.						90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	300-600 984-1968			20.0 12.4	12.7 55	No precipitation No precipitation	1
	11	15.4 60	745.4 29.35 993.79 993.79	755.7 29.75 1007.52 1007.52	0.1 0 0.13 0.13	89					60%. 6/10. 5 oktas	No significant weather observed.						10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	200-300 656-984			20.0 12.4	13.6 56	No precipitation No precipitation	1
	10	13.4 56	745.3 29.34 993.65 993.65	755.7 29.75 1007.52 1007.52	0.4 0.02 0.53 0.53	96					90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	No significant weather observed.						50%. 5/10. 4 oktas	300-600 984-1968			19.0 11.8	12.8 55	No precipitation No precipitation	1
	09	12.0 54	745.3 29.34 993.65 993.65	755.7 29.75 1007.52 1007.52	0.5 0.02 0.67 0.67	99					90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	No significant weather observed.			11.4 53	12.7 55		90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	2000-2500 6562-8202			15.0 9.3	11.8 53	No precipitation No precipitation	12
	08	11.6 53	745.3 29.34 993.65 993.65	755.7 29.75 1007.52 1007.52	0.6 0.02 0.8 0.8	100					100%. 10/10. 8 oktas	No significant weather observed.						100%. 10/10. 8 oktas	2000-2500 6562-8202			15.0 9.3	11.6 53	No precipitation No precipitation	1
	07	11.5 53	744.9 29.33 993.12 993.12	755.2 29.73 1006.85 1006.85	0.3 0.01 0.4 0.4	100					90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	Haze or smoke, or dust in suspension in the air, visibility equal to, or greater than, 1 km.						40%. 4/10. 3 oktas	50-100 164-328			9.0 5.6	11.5 53	No precipitation No precipitation	1
	06	11.4 53	744.8 29.32 992.99 992.99	755.2 29.73 1006.85 1006.85	0.4 0.02 0.53 0.53	100					100%. 10/10. 8 oktas	Haze or smoke, or dust in suspension in the air, visibility equal to, or greater than, 1 km.						100%. 10/10. 8 oktas	2000-2500 6562-8202			6.0 3.7	11.4 53	No precipitation No precipitation	1
	05	11.5 53	744.7 29.32 992.85 992.85	755.1 29.73 1006.72 1006.72	0.3 0.01 0.4 0.4	99					100%. 10/10. 8 oktas	Haze or smoke, or dust in suspension in the air, visibility equal to, or greater than, 1 km.						100%. 10/10. 8 oktas	2000-2500 6562-8202			6.0 3.7	11.4 53	No precipitation No precipitation	1
	04	11.6 53	744.6 29.31 992.72 992.72	754.9 29.72 1006.45 1006.45	0.3 0.01 0.4 0.4	100					100%. 10/10. 8 oktas	Haze or smoke, or dust in suspension in the air, visibility equal to, or greater than, 1 km.						10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	300-600 984-1968			6.0 3.7	11.6 53	No precipitation No precipitation	1
	03	11.5 53	744.4 29.31 992.45 992.45	754.8 29.72 1006.32 1006.32	0.2 0.01 0.27 0.27	100					100%. 10/10. 8 oktas	Haze or smoke, or dust in suspension in the air, visibility equal to, or greater than, 1 km.						20–30%. 2/10–3/10. 2 oktas	300-600 984-1968			7.0 4.4	11.5 53	No precipitation No precipitation	1
	02	11.6 53	744.4 29.31 992.45 992.45	754.7 29.71 1006.18 1006.18	0.4 0.02 0.53 0.53	100					90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	Mist.						90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	2000-2500 6562-8202			7.0 4.4	11.6 53	No precipitation No precipitation	1
	01	11.9 53	744.3 29.3 992.32 992.32	754.6 29.71 1006.05 1006.05	0.5 0.02 0.67 0.67	99					100%. 10/10. 8 oktas	No significant weather observed.						100%. 10/10. 8 oktas	2000-2500 6562-8202			10.0 6.2	11.8 53	No precipitation No precipitation	1
	00	12.0 54	744.2 29.3 992.19 992.19	754.6 29.71 1006.05 1006.05	0.7 0.03 0.93 0.93	99					90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	Rain shower(s) or intermittent rain, slight.						20–30%. 2/10–3/10. 2 oktas	300-600 984-1968			10.0 6.2	11.9 53	No precipitation No precipitation	1
September 17, Wednesday	23	12.4 54	744.0 29.29 991.92 991.92	754.3 29.7 1005.65 1005.65	1.1 0.04 1.47 1.47	98					100%. 10/10. 8 oktas	No significant weather observed.						100%. 10/10. 8 oktas	2000-2500 6562-8202			19.0 11.8	12.1 54	No precipitation No precipitation	1
	22	12.6 55	743.8 29.28 991.65 991.65	754.1 29.69 1005.38 1005.38	1.2 0.05 1.6 1.6	97					100%. 10/10. 8 oktas	No significant weather observed.						50%. 5/10. 4 oktas	200-300 656-984			19.0 11.8	12.2 54	No precipitation No precipitation	1
	21	12.7 55	743.5 29.27 991.25 991.25	753.8 29.68 1004.98 1004.98	1.3 0.05 1.73 1.73	96					90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	No significant weather observed.			12.7 55	15.7 60		20–30%. 2/10–3/10. 2 oktas	300-600 984-1968			20.0 12.4	12.0 54	4.0 0.16	12