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 21, Monday	19	10.7 51	747.6 29.43 996.72 996.72	758.0 29.84 1010.58 1010.58		97					60%. 6/10. 5 oktas	Rain (not freezing).						60%. 6/10. 5 oktas	1500-2000 4921-6562			20.0 12.4	10.3 51	No precipitation No precipitation	1
	18	12.0 54	746.9 29.41 995.79 995.79	757.3 29.81 1009.65 1009.65		91					100%. 10/10. 8 oktas	Rain, not freezing, slight.						100%. 10/10. 8 oktas	1000-1500 3281-4921			18.0 11.2	10.6 51	0.4 0.02	1
	17	14.8 59	745.9 29.37 994.45 994.45	756.1 29.77 1008.05 1008.05		75					no clouds no clouds no clouds											20.0 12.4	10.3 51	No precipitation No precipitation	1
	16	14.8 59	745.2 29.34 993.52 993.52	755.5 29.74 1007.25 1007.25		72					no clouds no clouds no clouds											20.0 12.4	9.8 50	No precipitation No precipitation	1
	15	15.4 60	744.4 29.31 992.45 992.45	754.6 29.71 1006.05 1006.05		70					90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 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	9.9 50	No precipitation No precipitation	1
	14	14.4 58	744.1 29.3 992.05 992.05	754.3 29.7 1005.65 1005.65		79					70 – 80%. 7/10 – 8/10. 6 oktas							60%. 6/10. 5 oktas	600-1000 1968-3281			20.0 12.4	10.7 51	No precipitation No precipitation	1
	13	14.5 58	743.6 29.28 991.39 991.39	753.8 29.68 1004.98 1004.98		77					70 – 80%. 7/10 – 8/10. 6 oktas							70 – 80%. 7/10 – 8/10. 6 oktas	300-600 984-1968			20.0 12.4	10.5 51	No precipitation No precipitation	1
	12	12.8 55	743.2 29.26 990.85 990.85	753.5 29.67 1004.58 1004.58		91					60%. 6/10. 5 oktas							60%. 6/10. 5 oktas	200-300 656-984			20.0 12.4	11.4 53	No precipitation No precipitation	1
	11	11.6 53	742.5 29.23 989.92 989.92	752.8 29.64 1003.65 1003.65		98					100%. 10/10. 8 oktas	Fog						100%. 10/10. 8 oktas	50-100 164-328			17.0 10.6	11.3 52	No precipitation No precipitation	1
	10	10.5 51	741.8 29.2 988.99 988.99	752.2 29.61 1002.85 1002.85		99					Sky obscured by fog and/or other meteorological phenomena. Sky obscured by fog and/or other meteorological phenomena. Sky obscured by fog and/or other meteorological phenomena.	Fog or ice fog, has begun or become thicker during the past hour.						Sky obscured by fog and/or other meteorological phenomena. Sky obscured by fog and/or other meteorological phenomena. Sky obscured by fog and/or other meteorological phenomena.	50-100 164-328			0.2 0.1	10.4 51	No precipitation No precipitation	1
	09	9.7 49	741.2 29.18 988.19 988.19	751.6 29.59 1002.05 1002.05		99					100%. 10/10. 8 oktas	Fog or ice fog, has begun or become thicker during the past hour.			8.4 47	10.3 51		100%. 10/10. 8 oktas	50-100 164-328			1.0 0.6	9.6 49	0.3 0.01	12
	08	8.4 47	740.9 29.17 987.79 987.79	751.3 29.58 1001.65 1001.65		99					40%. 4/10. 3 oktas							40%. 4/10. 3 oktas	100-200 328-656			18.0 11.2	8.3 47	No precipitation No precipitation	1
	07	8.8 48	740.8 29.17 987.65 987.65	751.1 29.57 1001.38 1001.38		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	200-300 656-984			19.0 11.8	8.7 48	No precipitation No precipitation	1
	06	8.9 48	740.3 29.15 986.99 986.99	750.7 29.56 1000.85 1000.85		99					100%. 10/10. 8 oktas							40%. 4/10. 3 oktas	1500-2000 4921-6562			19.0 11.8	8.8 48	No precipitation No precipitation	1
	05	8.6 47	740.2 29.14 986.85 986.85	750.6 29.55 1000.72 1000.72		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	1500-2000 4921-6562			19.0 11.8	8.5 47	No precipitation No precipitation	1
	04	8.7 48	740.1 29.14 986.72 986.72	750.5 29.55 1000.58 1000.58		99					60%. 6/10. 5 oktas	Rain shower(s) or intermittent rain, slight.						60%. 6/10. 5 oktas	1000-1500 3281-4921			19.0 11.8	8.5 47	No precipitation No precipitation	1
	03	9.6 49	740.0 29.13 986.59 986.59	750.4 29.54 1000.45 1000.45		97					70 – 80%. 7/10 – 8/10. 6 oktas	Rain shower(s) or intermittent rain, slight.						60%. 6/10. 5 oktas	1000-1500 3281-4921			19.0 11.8	9.2 49	0.2 0.01	1
	02	10.0 50	740.1 29.14 986.72 986.72	750.4 29.54 1000.45 1000.45		99					100%. 10/10. 8 oktas	Rain (not freezing).						100%. 10/10. 8 oktas	1000-1500 3281-4921			14.0 8.7	9.8 50	0.2 0.01	1
	01	10.0 50	740.2 29.14 986.85 986.85	750.6 29.55 1000.72 1000.72		98					100%. 10/10. 8 oktas							10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	300-600 984-1968			18.0 11.2	9.7 49	No precipitation No precipitation	1
	00	9.3 49	740.2 29.14 986.85 986.85	750.6 29.55 1000.72 1000.72		97					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	300-600 984-1968			18.0 11.2	8.9 48	No precipitation No precipitation	1
September 20, Sunday	23	9.5 49	740.0 29.13 986.59 986.59	750.4 29.54 1000.45 1000.45		95					no clouds no clouds no clouds											20.0 12.4	8.8 48	No precipitation No precipitation	1
	22	10.1 50	740.2 29.14 986.85 986.85	750.5 29.55 1000.58 1000.58		92					70 – 80%. 7/10 – 8/10. 6 oktas							70 – 80%. 7/10 – 8/10. 6 oktas	1500-2000 4921-6562			20.0 12.4	8.9 48	No precipitation No precipitation	1
	21	10.4 51	740.2 29.14 986.85 986.85	750.6 29.55 1000.72 1000.72		88					40%. 4/10. 3 oktas				10.4 51	16.4 62		40%. 4/10. 3 oktas	1000-1500 3281-4921			20.0 12.4	8.5 47	No precipitation No precipitation	12
	20	11.6 53	740.3 29.15 986.99 986.99	750.6 29.55 1000.72 1000.72		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	1000-1500 3281-4921			20.0 12.4	8.7 48	No precipitation No precipitation	1
	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