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
2026 September 18, Friday	13	13.4 56	741.6 29.2 988.72 988.72	751.9 29.6 1002.45 1002.45		97					100%. 10/10. 8 oktas	Rain shower(s) or intermittent rain, slight.						100%. 10/10. 8 oktas	200-300 656-984			12.0 7.5	13.0 55	0.5 0.02	1
	12	13.0 55	741.8 29.2 988.99 988.99	752.1 29.61 1002.72 1002.72		98					100%. 10/10. 8 oktas	Rain shower(s) or intermittent rain, slight.						100%. 10/10. 8 oktas	200-300 656-984			19.0 11.8	12.7 55	1.0 0.04	1
	11	12.8 55	742.1 29.22 989.39 989.39	752.4 29.62 1003.12 1003.12		97					90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	Rain, not freezing, slight.						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			19.0 11.8	12.4 54	No precipitation No precipitation	1
	10	11.7 53	742.1 29.22 989.39 989.39	752.5 29.63 1003.25 1003.25		99					90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas							20–30%. 2/10–3/10. 2 oktas	300-600 984-1968			20.0 12.4	11.5 53	No precipitation No precipitation	1
	09	10.8 51	742.0 29.21 989.25 989.25	752.4 29.62 1003.12 1003.12		99					100%. 10/10. 8 oktas				9.7 49	11.5 53		100%. 10/10. 8 oktas	1500-2000 4921-6562			20.0 12.4	10.7 51	0.7 0.03	12
	08	9.9 50	741.9 29.21 989.12 989.12	752.3 29.62 1002.98 1002.98		100					20–30%. 2/10–3/10. 2 oktas	Mist.							2500 or more, or no clouds. 8202 or more, or no clouds.			10.0 6.2	9.9 50	No precipitation No precipitation	1
	07	10.5 51	741.7 29.2 988.85 988.85	752.1 29.61 1002.72 1002.72		99					60%. 6/10. 5 oktas	Mist.							2500 or more, or no clouds. 8202 or more, or no clouds.			6.0 3.7	10.4 51	No precipitation No precipitation	1
	06	11.0 52	741.6 29.2 988.72 988.72	751.9 29.6 1002.45 1002.45		100					90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	Mist.						20–30%. 2/10–3/10. 2 oktas	50-100 164-328			2.1 1.3	11.0 52	No precipitation No precipitation	1
	05	11.3 52	741.6 29.2 988.72 988.72	751.9 29.6 1002.45 1002.45		100					90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	Rain (not freezing).						90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	100-200 328-656			9.0 5.6	11.3 52	0.7 0.03	1
	04	11.1 52	741.4 29.19 988.45 988.45	751.7 29.59 1002.18 1002.18		99					100%. 10/10. 8 oktas	Rain shower(s) or intermittent rain, slight.						100%. 10/10. 8 oktas	50-100 164-328			6.0 3.7	11.0 52	No precipitation No precipitation	1
	03	10.8 51	741.3 29.19 988.32 988.32	751.6 29.59 1002.05 1002.05		100					100%. 10/10. 8 oktas	Rain (not freezing).						60%. 6/10. 5 oktas	50-100 164-328			15.0 9.3	10.8 51	No precipitation No precipitation	1
	02	11.1 52	741.3 29.19 988.32 988.32	751.6 29.59 1002.05 1002.05		99					100%. 10/10. 8 oktas	Rain shower(s) or intermittent rain, slight.						90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	50-100 164-328			15.0 9.3	11.0 52	No precipitation No precipitation	1
	01	10.9 52	741.4 29.19 988.45 988.45	751.7 29.59 1002.18 1002.18		99					100%. 10/10. 8 oktas							100%. 10/10. 8 oktas	50-100 164-328			13.0 8.1	10.8 51	No precipitation No precipitation	1
	00	10.0 50	741.3 29.19 988.32 988.32	751.6 29.59 1002.05 1002.05		100					100%. 10/10. 8 oktas							50%. 5/10. 4 oktas	100-200 328-656			20.0 12.4	10.0 50	No precipitation No precipitation	1
September 17, Thursday	23	10.0 50	741.1 29.18 988.05 988.05	751.5 29.59 1001.92 1001.92		99					90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas							40%. 4/10. 3 oktas	2500 or more, or no clouds. 8202 or more, or no clouds.			19.0 11.8	9.9 50	No precipitation No precipitation	1
	22	10.6 51	741.0 29.17 987.92 987.92	751.3 29.58 1001.65 1001.65		99					no clouds no clouds no clouds											20.0 12.4	10.4 51	No precipitation No precipitation	1
	21	11.5 53	740.9 29.17 987.79 987.79	751.2 29.57 1001.52 1001.52		97					40%. 4/10. 3 oktas				11.3 52	16.1 61		40%. 4/10. 3 oktas	600-1000 1968-3281			20.0 12.4	11.0 52	2.0 0.08	12
	20	11.8 53	740.6 29.16 987.39 987.39	750.9 29.56 1001.12 1001.12		97					20–30%. 2/10–3/10. 2 oktas							20–30%. 2/10–3/10. 2 oktas	600-1000 1968-3281			20.0 12.4	11.3 52	No precipitation No precipitation	1
	19	13.5 56	740.3 29.15 986.99 986.99	750.6 29.55 1000.72 1000.72		90					10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0							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	11.9 53	No precipitation No precipitation	1
	18	14.7 58	740.2 29.14 986.85 986.85	750.4 29.54 1000.45 1000.45		83					10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0							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	11.9 53	No precipitation No precipitation	1
	17	15.0 59	740.2 29.14 986.85 986.85	750.3 29.54 1000.32 1000.32		81					10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0							10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	1500-2000 4921-6562			20.0 12.4	11.8 53	No precipitation No precipitation	1
	16	13.1 56	740.0 29.13 986.59 986.59	750.2 29.54 1000.18 1000.18		96					40%. 4/10. 3 oktas	Rain (not freezing).						40%. 4/10. 3 oktas	2000-2500 6562-8202			20.0 12.4	12.5 55	0.7 0.03	1
	15	14.9 59	739.9 29.13 986.45 986.45	750.1 29.53 1000.05 1000.05		83					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.						70 – 80%. 7/10 – 8/10. 6 oktas	300-600 984-1968			19.0 11.8	12.0 54	No precipitation No precipitation	1
	14	15.5 60	739.6 29.12 986.05 986.05	749.7 29.52 999.52 999.52		83					70 – 80%. 7/10 – 8/10. 6 oktas							70 – 80%. 7/10 – 8/10. 6 oktas	300-600 984-1968			20.0 12.4	12.6 55	No precipitation No precipitation	1
	13	14.2 58	739.4 29.11 985.79 985.79	749.6 29.51 999.38 999.38		92					60%. 6/10. 5 oktas	Rain (not freezing).						20–30%. 2/10–3/10. 2 oktas	200-300 656-984			20.0 12.4	12.9 55	0.7 0.03	1