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 20, Sunday	19	12.6 55	740.2 29.14 986.85 986.85	750.4 29.54 1000.45 1000.45		78					60%. 6/10. 5 oktas							60%. 6/10. 5 oktas	1000-1500 3281-4921			20.0 12.4	8.8 48	No precipitation No precipitation	1
	18	13.2 56	740.3 29.15 986.99 986.99	750.5 29.55 1000.58 1000.58		73					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	8.4 47	No precipitation No precipitation	1
	17	14.2 58	740.3 29.15 986.99 986.99	750.5 29.55 1000.58 1000.58		69					70 – 80%. 7/10 – 8/10. 6 oktas							70 – 80%. 7/10 – 8/10. 6 oktas	1000-1500 3281-4921			20.0 12.4	8.6 47	No precipitation No precipitation	1
	16	14.9 59	740.2 29.14 986.85 986.85	750.4 29.54 1000.45 1000.45		67					20–30%. 2/10–3/10. 2 oktas							20–30%. 2/10–3/10. 2 oktas	600-1000 1968-3281			20.0 12.4	8.8 48	No precipitation No precipitation	1
	15	14.9 59	740.1 29.14 986.72 986.72	750.3 29.54 1000.32 1000.32		67					40%. 4/10. 3 oktas							40%. 4/10. 3 oktas	600-1000 1968-3281			20.0 12.4	8.7 48	No precipitation No precipitation	1
	14	15.9 61	740.0 29.13 986.59 986.59	750.1 29.53 1000.05 1000.05		66					50%. 5/10. 4 oktas							50%. 5/10. 4 oktas	600-1000 1968-3281			20.0 12.4	9.6 49	No precipitation No precipitation	1
	13	15.6 60	739.9 29.13 986.45 986.45	750.1 29.53 1000.05 1000.05		67					60%. 6/10. 5 oktas							60%. 6/10. 5 oktas	600-1000 1968-3281			20.0 12.4	9.4 49	No precipitation No precipitation	1
	12	15.2 59	739.8 29.13 986.32 986.32	750.0 29.53 999.92 999.92		72					60%. 6/10. 5 oktas							60%. 6/10. 5 oktas	600-1000 1968-3281			20.0 12.4	10.2 50	No precipitation No precipitation	1
	11	13.9 57	739.6 29.12 986.05 986.05	749.8 29.52 999.65 999.65		83					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			19.0 11.8	11.0 52	No precipitation No precipitation	1
	10	12.9 55	739.6 29.12 986.05 986.05	749.8 29.52 999.65 999.65		88					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	11.0 52	No precipitation No precipitation	1
	09	12.1 54	739.2 29.1 985.52 985.52	749.5 29.51 999.25 999.25		94					90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas				12.1 54	14.5 58		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	11.1 52	6.0 0.24	12
	08	12.5 55	739.0 29.09 985.25 985.25	749.2 29.5 998.85 998.85		92					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	11.3 52	No precipitation No precipitation	1
	07	12.5 55	738.7 29.08 984.85 984.85	748.9 29.48 998.45 998.45		93					100%. 10/10. 8 oktas							100%. 10/10. 8 oktas	300-600 984-1968			20.0 12.4	11.4 53	No precipitation No precipitation	1
	06	12.8 55	738.5 29.07 984.59 984.59	748.7 29.48 998.18 998.18		94					70 – 80%. 7/10 – 8/10. 6 oktas							70 – 80%. 7/10 – 8/10. 6 oktas	300-600 984-1968			20.0 12.4	11.8 53	No precipitation No precipitation	1
	05	13.8 57	738.4 29.07 984.45 984.45	748.6 29.47 998.05 998.05		95					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	13.0 55	No precipitation No precipitation	1
	04	14.4 58	737.9 29.05 983.79 983.79	748.1 29.45 997.38 997.38		97					100%. 10/10. 8 oktas	Rain, not freezing, slight.						100%. 10/10. 8 oktas	100-200 328-656			14.0 8.7	14.0 57	3.0 0.12	1
	03	14.3 58	738.3 29.07 984.32 984.32	748.5 29.47 997.92 997.92		98					100%. 10/10. 8 oktas	Rain, not freezing, heavy.						100%. 10/10. 8 oktas	100-200 328-656			3.2 2.0	14.0 57	2.0 0.08	1
	02	14.2 58	739.1 29.1 985.39 985.39	749.3 29.5 998.98 998.98		97					100%. 10/10. 8 oktas	Rain, not freezing, slight.						100%. 10/10. 8 oktas	100-200 328-656			6.0 3.7	13.8 57	0.4 0.02	1
	01	14.3 58	740.1 29.14 986.72 986.72	750.3 29.54 1000.32 1000.32		95					100%. 10/10. 8 oktas	Rain shower(s) or intermittent rain, slight.						100%. 10/10. 8 oktas	200-300 656-984			16.0 9.9	13.5 56	0.1	1
	00	14.0 57	741.1 29.18 988.05 988.05	751.3 29.58 1001.65 1001.65		96					100%. 10/10. 8 oktas	Rain shower(s) or intermittent rain, slight.						100%. 10/10. 8 oktas	200-300 656-984			15.0 9.3	13.3 56	0.1	1
September 19, Saturday	23	14.0 57	741.9 29.21 989.12 989.12	752.1 29.61 1002.72 1002.72		93					100%. 10/10. 8 oktas							100%. 10/10. 8 oktas	300-600 984-1968			16.0 9.9	12.9 55	No precipitation No precipitation	1
	22	13.8 57	742.5 29.23 989.92 989.92	752.8 29.64 1003.65 1003.65		93					100%. 10/10. 8 oktas	Rain (not freezing).						100%. 10/10. 8 oktas	300-600 984-1968			9.0 5.6	12.7 55	No precipitation No precipitation	1
	21	13.9 57	742.8 29.24 990.32 990.32	753.1 29.65 1004.05 1004.05		91					100%. 10/10. 8 oktas	Precipitation			11.5 53	15.8 60		100%. 10/10. 8 oktas	300-600 984-1968			19.0 11.8	12.4 54	No precipitation No precipitation	12
	20	13.4 56	743.0 29.25 990.59 990.59	753.3 29.66 1004.32 1004.32		95					100%. 10/10. 8 oktas	Rain shower(s) or intermittent rain, slight.						100%. 10/10. 8 oktas	300-600 984-1968			8.0 5.0	12.6 55	No precipitation No precipitation	1
	19	13.7 57	743.5 29.27 991.25 991.25	753.7 29.67 1004.85 1004.85		92					100%. 10/10. 8 oktas	Rain shower(s) or intermittent rain, slight.						100%. 10/10. 8 oktas	300-600 984-1968			16.0 9.9	12.4 54	No precipitation No precipitation	1