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 August 18, Tuesday	01	11.6 53	741.9 29.21 989.12 989.12	752.2 29.61 1002.85 1002.85		94					no clouds no clouds no clouds											20.0 12.4	10.6 51	No precipitation No precipitation	1
2026 August 18, Tuesday	00	12.8 55	741.8 29.2 988.99 988.99	752.1 29.61 1002.72 1002.72		90					20–30%. 2/10–3/10. 2 oktas							20–30%. 2/10–3/10. 2 oktas	1000-1500 3281-4921			20.0 12.4	11.1 52	No precipitation No precipitation	1
August 17, Monday	23	13.8 57	741.7 29.2 988.85 988.85	751.9 29.6 1002.45 1002.45		86					40%. 4/10. 3 oktas							40%. 4/10. 3 oktas	600-1000 1968-3281			20.0 12.4	11.4 53	No precipitation No precipitation	1
	22	15.4 60	741.6 29.2 988.72 988.72	751.8 29.6 1002.32 1002.32		80					90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas							90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	600-1000 1968-3281			20.0 12.4	11.9 53	No precipitation No precipitation	1
	21	15.8 60	741.4 29.19 988.45 988.45	751.6 29.59 1002.05 1002.05		79					70 – 80%. 7/10 – 8/10. 6 oktas				15.7 60	20.2 68		70 – 80%. 7/10 – 8/10. 6 oktas	1000-1500 3281-4921			20.0 12.4	12.2 54	No precipitation No precipitation	12
	20	17.1 63	741.1 29.18 988.05 988.05	751.3 29.58 1001.65 1001.65		72					20–30%. 2/10–3/10. 2 oktas							10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	1000-1500 3281-4921			20.0 12.4	12.0 54	No precipitation No precipitation	1
	19	17.2 63	741.1 29.18 988.05 988.05	751.1 29.57 1001.38 1001.38		76					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	1000-1500 3281-4921			20.0 12.4	12.8 55	No precipitation No precipitation	1
	18	18.5 65	740.8 29.17 987.65 987.65	751.0 29.57 1001.25 1001.25		71					100%. 10/10. 8 oktas	Rain (not freezing).						100%. 10/10. 8 oktas	2000-2500 6562-8202			20.0 12.4	13.1 56	No precipitation No precipitation	1
	17	18.6 65	740.8 29.17 987.65 987.65	750.8 29.56 1000.98 1000.98		67					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	1000-1500 3281-4921			20.0 12.4	12.2 54	No precipitation No precipitation	1
	16	19.7 67	740.6 29.16 987.39 987.39	750.6 29.55 1000.72 1000.72		61					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).						10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	1000-1500 3281-4921			20.0 12.4	12.0 54	No precipitation No precipitation	1
	15	19.3 67	740.7 29.16 987.52 987.52	750.7 29.56 1000.85 1000.85		65					50%. 5/10. 4 oktas							50%. 5/10. 4 oktas	1000-1500 3281-4921			20.0 12.4	12.5 55	No precipitation No precipitation	1
	14	19.4 67	740.6 29.16 987.39 987.39	750.7 29.56 1000.85 1000.85		66					70 – 80%. 7/10 – 8/10. 6 oktas							70 – 80%. 7/10 – 8/10. 6 oktas	600-1000 1968-3281			20.0 12.4	12.8 55	No precipitation No precipitation	1
	13	18.3 65	740.5 29.15 987.25 987.25	750.6 29.55 1000.72 1000.72		68					90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas							90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	600-1000 1968-3281			20.0 12.4	12.3 54	No precipitation No precipitation	1
	12	18.9 66	740.2 29.14 986.85 986.85	750.3 29.54 1000.32 1000.32		69					90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas							90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	600-1000 1968-3281			20.0 12.4	13.0 55	No precipitation No precipitation	1
	10	17.2 63	739.7 29.12 986.19 986.19	749.8 29.52 999.65 999.65		78					90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas							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	13.4 56	No precipitation No precipitation	1
	09	15.7 60	739.8 29.13 986.32 986.32	749.9 29.52 999.78 999.78		86					100%. 10/10. 8 oktas				14.1 57	15.7 60		100%. 10/10. 8 oktas	300-600 984-1968			20.0 12.4	13.4 56	No precipitation No precipitation	12
	08	15.2 59	739.7 29.12 986.19 986.19	749.9 29.52 999.78 999.78		90					90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas							70 – 80%. 7/10 – 8/10. 6 oktas	300-600 984-1968			20.0 12.4	13.5 56	No precipitation No precipitation	1
	07	14.8 59	739.6 29.12 986.05 986.05	749.8 29.52 999.65 999.65		95					100%. 10/10. 8 oktas							100%. 10/10. 8 oktas	300-600 984-1968			20.0 12.4	14.0 57	No precipitation No precipitation	1
	06	14.5 58	739.5 29.11 985.92 985.92	749.7 29.52 999.52 999.52		97					100%. 10/10. 8 oktas							100%. 10/10. 8 oktas	300-600 984-1968			16.0 9.9	14.1 57	No precipitation No precipitation	1
	05	14.1 57	739.4 29.11 985.79 985.79	749.6 29.51 999.38 999.38		97					70 – 80%. 7/10 – 8/10. 6 oktas							50%. 5/10. 4 oktas	600-1000 1968-3281			15.0 9.3	13.7 57	No precipitation No precipitation	1
	04	14.7 58	739.4 29.11 985.79 985.79	749.5 29.51 999.25 999.25		99					70 – 80%. 7/10 – 8/10. 6 oktas							70 – 80%. 7/10 – 8/10. 6 oktas	100-200 328-656			10.0 6.2	14.5 58	No precipitation No precipitation	1
	03	14.6 58	739.2 29.1 985.52 985.52	749.3 29.5 998.98 998.98		99					90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas							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			18.0 11.2	14.4 58	No precipitation No precipitation	1
	02	14.8 59	739.3 29.11 985.65 985.65	749.5 29.51 999.25 999.25		99					100%. 10/10. 8 oktas							100%. 10/10. 8 oktas	50-100 164-328			19.0 11.8	14.6 58	No precipitation No precipitation	1
	01	14.7 58	739.3 29.11 985.65 985.65	749.5 29.51 999.25 999.25		99					100%. 10/10. 8 oktas	Mist.						100%. 10/10. 8 oktas	50-100 164-328			7.0 4.4	14.5 58	No precipitation No precipitation	1