AAVSO: Mean k-corrected and Smoothed Mean Values

AAVSO HOME > observing > programs > solar > sunspot numbers > means

Observing

Observing Programs

Visual

CCD

Exoplanet Transit Search

High Energy Network

Photoelectric (PEP)

Infrared Photometry

Supernova Search

Eclipsing Binary

Sunspots and SID

Observing Campaigns

Submit Observations

Main sections of web

The AAVSO

Education and Outreach

Mean k-corrected and Smoothed Mean Values

Smoothed American Relative Sunspot Numbers (Rsm) for January 1991 to Present (Waldmeier method)

	Mn. Rak		Rsm
Jan 1991	140.7		148.1
Feb	171.8		148.2
Mar	147.7		147.0
Apr	135.7		146.7
May	119.4		145.5
Jun	158.3		144.5
Jul	166.3		144.4
Aug	171.9		143.9
Sep	120.7		141.5
Oct	146.1		138.1
Nov	109.9		134.4
Dec	144.2		128.6

	Mn. Rak		Rsm
Jan 1992	142.0		121.5
Feb	157.0		113.7
Mar	105.1		107.1
Apr	97.1		102.6
May	68.5		99.5
Jun	69.6		96.2
Jul	84.3		90.4
Aug	67.6		84.2
Sep	66.0		80.1
Oct	93.3		77.4
Nev	89.1		75.6
Dec	85.0		74.1

	Mn. Rak		Rsm
Jan 1993	61.7		72.2
Feb	90.1		70.0
Mar	72.5		67.2
Apr	65.7		63.7
May	54.9		59.7
Jun	49.5		56.1
Jul	57.4		54.6
Aug	42.7		52.5
Sep	23.1		48.9
Oct	51.2		45.4
Nov	35.6		41.9
Dec	52.0		39.5

	Mn. Rak		Rsm
Jan 1994	59.7		37.6
Feb	40.4		35.8
Mar	36.5		35.2
Apr	17.7		35.0
May	19.9		34.0
Jun	27.0		32.1
Jul	33.8		29.5
Aug	23.5		27.5
Sep	26.3		26.8
Oct	43.7		26.6
Nov	18.6		26.3
Dec	24.7		25.7

	Mn. Rak		Rsm
Jan 1995	23.9		24.4
Feb	28.4		23.3
Mar	32.8		22.4
Apr	15.3		20.8
May	14.8		19.5
Jun	17.0		18.6
Jul	14.9		17.4
Aug	15.1		15.9
Sep	12.5		14.0
Oct	20.3		12.6
Nov	10.6		11.8
Dec	10.0		11.2

	Mn. Rak		Rsm
Jan 1996	10.9		10.7
Feb	5.9		10.3
Mar	8.3		9.8
Apr	5.4		8.6
May	6.3		8.0
Jun	11.6		8.3
Jul	8.1		8.2
Aug	13.2		8.1
Sep	1.8		8.1
Oct	1.4		8.5
Nov	16.1		9.4
Dec	12.0		10.0

	Mn. Rak		Rsm
Jan 1997	5.5		10.1
Feb	7.9		10.4
Mar	7.9		12.6
Apr	15.3		15.2
May	17.8		17.0
Jun	13.8		19.0
Jul	7.7		21.2
Aug	22.8		23.4
Sep	43.9		26.6
Oct	22.6		30.1
Nov	37.7		33.0
Dec	38.9		36.5

	Mn. Rak		Rsm
Jan 1998	31.1		40.9
Feb	34.8		46.1
Mar	57.8		50.8
Apr	49.0		53.9
May	54.7		56.3
Jun	60.4		59.6
Jul	66.1		62.8
Aug	88.5		65.3
Sep	92.3		67.0
Oct	48.9		68.0
Nov	68.8		70.7
Dec	86.4		76.0

	Mn. Rak		Rsm
Jan 1999	59.6		81.8
Feb	67.0		84.6
Mar	66.6		84.3
Apr	65.2		86.8
May	101.6		92.9
Jun	142.1		96.0
Jul	122.9		97.4
Aug	98.0		100.9
Sep	77.5		106.4
Oct	121.8		112.7
Nov	143.0		116.1
Dec	86.5		116.6

	Mn. Rak		Rsm
Jan 2000	93.6		118.7
Feb	116.8		122.0
Mar	148.7		124.9
Apr	133.6		125.7
May	115.8		123.5
June	139.8		122.9
Jul	175.0		123.9
Aug	126.8		123.0
Sep	126.1		120.8
Oct	120.6		119.4
Nov	112.0		118.2
Dec	101.2		118.0

	Mn. Rak		Rsm
Jan 2001	102.6		114.7
Feb 2001	87.5		110.6
Mar 2001	126.1		112.5
Apr 2001	120.6		116.5
May 2001	101.6		118.5
Jun 2001	148.4		121.1
Jul 2001	86.5		124.0
Aug 2001	117.1		125.8
Sep 2001	173.3		125.6
Oct 2001	139.5		124.6
Nov 2001	124.2		126.0
Dec 2001	151.5		124.5

	Mn. Rak		Rsm
Jan 2002	102.6		124.5
Feb 2002	114.0		123.8
Mar 2002	96.0		121.9
Apr 2002	125.8		118.4
May 2002	129.1		115.8
Jun 2002	86.7		112.1
Jul 2002	108.2		108.0
Aug 2002	117.7		103.9
Sep 2002	126.2		100.0
Oct 2002	103.5		96.2
Nov 2002	98.0		90.6
Dec 2002	87.7		87.2

	Mn. Rak		Rsm
Jan 2003	85.3		85.8
Feb 2003	51.3		83.0
Mar 2003	66.1		78.1
Apr 2003	64.4		73.6
May 2003	55.1		70.7
Jun 2003	78.2		67.4
Jul 2003	83.2		63.9
Aug 2003	75.5		61.9
Sep 2003	51.5		61.2
Oct 2003	70.0		59.5
Nov 2003	61.0		58.0
Dec 2003	47.6		56.2

	Mn. Rak		Rsm
Jan 2004	39.4		53.6
Feb 2004	50.0		51.4
Mar 2004	50.8		49.5
Apr 2004	37.9		47.9
May 2004	47.4		46.5
Jun 2004	41.9		44.7
Jul 2004	57.8		43.2
Aug 2004	48.5		41.9
Sep 2004	32.8		39.9
Oct 2004	49.7		38.3
Nov 2004	46.7		37.4
Dec 2004	18.9		37.0

	Mn. Rak		Rsm
Jan 2005	31.5		36.2
Feb 2005	28.3		35.2
Mar 2005	24.5		34.5
Apr 2005	24.9		32.5
May 2005	39.7		29.6
June 2005	38.7		29.3
July 2005	42.9		29.5
August 2005	39.2		27.8
September 2005	24.8		26.1
October 2005	24.8		25.8

search engine | site map | links | contact us