http://coolwx.com/record archive for 2010120407

*X* = Monthly record **X** = All-time record

ID City Country Type and
unofficial
status Current
Temp.
(°F) Unofficial
Daily/Monthly
Record (°F) Margin of
Daily
Record (°F) Year of
Daily
Record Database
Length
(years)
URMT Stavropol / Shpakovskoye Russia HIGH: BROKEN 57.2 53.6/68.0 3.6 2004 42
ZSNJ Nanjing China HIGH: BROKEN 66.2 64.8/73.4 1.4 1989 45
ZSOF Hefei China HIGH: BROKEN 66.2 65.7/75.2 .5 1989 45
WADA Selaparang Indonesia HIGH: BROKEN 91.4 91.0/103.6 .4 2004 35
ZYTL Dalian China HIGH: TIE 55.4 55.4/60.8 0 1977 45
YPAD Adelaide Airport Australia HIGH: TIE 98.6 98.6/108.3 0 1994 40
UGSB Batumi Georgia HIGH: TIE 75.2 75.2/81.0 0 1980 51
LGAL Alexandroupoli Airport Greece HIGH: CLOSE 66.2 66.9/71.6 -.7 2008 44
YPCC Cocos Island Airport Christmas Island HIGH: CLOSE 86.0 87.1/105.8 -1.0 1957 46
ZBHH Hohhot China HIGH: CLOSE 42.8 44.1/52.9 -1.3 1983 44
RPMD Davao Airport Philippines HIGH: CLOSE 91.4 92.7/102.2 -1.3 1987 35
ZGKL Guilin China HIGH: CLOSE 73.4 74.8/82.4 -1.3 1989 47
ZHHH Wuhan China HIGH: CLOSE 68.0 69.4/73.4 -1.4 1989 45
ZUUU Chengdu China HIGH: CLOSE 62.6 64.4/77.0 -1.8 2004 45
ZSQD Qingdao China HIGH: CLOSE 57.2 59.0/61.2 -1.8 2002 45
ZBYN Taiyuan China HIGH: CLOSE 53.6 55.4/60.8 -1.8 1989 45
LGSY Skiros Greece HIGH: CLOSE 66.2 68.0/78.8 -1.8 2008 42
WBGB Bintulu Malaysia HIGH: CLOSE 89.6 91.4/106.9 -1.8 1994 47
ZPPP Kunming China HIGH: CLOSE 68.0 70.7/82.4 -2.7 1998 52

LFMP Perpignan France LOW: CLOSE 32.0 29.1/21.4 2.9 1983 36
SPIM Lima-Callao / Aerop. Internacional Jorgechavez Peru LOW: CLOSE 62.6 60.1/49.5 2.5 1992 43
LEPP Pamplona / Noain Spain LOW: CLOSE 26.6 24.1/14.0 2.5 1990 36
LKPR Praha / Ruzyne Czech Republic LOW: CLOSE 12.2 10.0/-9.9 2.2 1958 52
ETAD Spangdahlem Germany LOW: CLOSE 22.1 19.9/5.0 2.2 1958 54
EDFH Hahn Germany LOW: CLOSE 21.2 19.0/1.4 2.2 1958 54
EBBR Bruxelles National Belgium LOW: CLOSE 24.8 22.6/5.0 2.2 1989 47
ETOU Wiesbaden Germany LOW: CLOSE 21.4 19.4/-4.0 2.0 1962 66
ESSV Visby Flygplats Sweden LOW: CLOSE 24.8 22.8/-8.0 2.0 1988 36
EBBL Kleine Brogel Belgium LOW: CLOSE 21.2 19.2/3.2 2.0 1983 36
UEST Tiksi Russia LOW: CLOSE -38.1 -40.0/-55.7 1.9 1960 61
SUMU Carrasco Uruguay LOW: CLOSE 51.8 50.0/33.8 1.8 1974 42
LFTW Nimes / Garons France LOW: CLOSE 26.6 24.8/19.4 1.8 1973 36
LFPO Paris-Orly France LOW: CLOSE 26.6 24.8/9.3 1.8 1983 49
LFOT Tours France LOW: CLOSE 26.6 24.8/9.9 1.8 1989 36
LEVC Valencia / Aeropuerto Spain LOW: CLOSE 30.2 28.4/26.6 1.8 1973 36
LEBG Burgos / Villafria Spain LOW: CLOSE 23.0 21.2/8.2 1.8 1973 36
ETHB Bueckeburg Germany LOW: CLOSE 23.0 21.2/-0.8 1.8 1989 36
ELLX Luxembourg / Luxembourg Luxembourg LOW: CLOSE 23.0 21.2/5.0 1.8 1973 44
EKYT Aalborg Denmark LOW: CLOSE 21.2 19.4/-9.4 1.8 1980 40
EHVK Volkel Netherlands LOW: CLOSE 23.0 21.2/-0.4 1.8 1989 45
EHEH Eindhoven Netherlands LOW: CLOSE 23.0 21.2/1.4 1.8 1989 46
EGPE Inverness / Dalcross United Kingdom LOW: CLOSE 28.4 26.6/1.4 1.8 1987 36
EBOS Oostende Airport Belgium LOW: CLOSE 26.6 24.8/10.4 1.8 1989 38
EDDK Koeln / Bonn Germany LOW: CLOSE 17.6 16.0/1.0 1.6 1933 56
EBBE Beauvechain Belgium LOW: CLOSE 24.8 23.2/3.2 1.6 1989 36
ETEB Ansbach / Katterbach Germany LOW: CLOSE 20.5 19.0/-8.0 1.5 1942 49
LFMH St-Etienne Boutheon France LOW: CLOSE 15.8 14.4/8.6 1.4 1983 36
EGXU Linton-On-Ouse United Kingdom LOW: CLOSE 30.2 29.1/8.6 1.1 1991 36
LETO Madrid / Torrejon Spain LOW: CLOSE 23.0 22.1/10.9 .8 1962 49
EHAM Amsterdam Airport Schiphol Netherlands LOW: CLOSE 23.0 22.1/5.0 .8 1989 45
EBDT Schaffen Belgium LOW: TIE 23.0 22.5/0.5 .5 1989 36
LFPV Villacoublay France LOW: TIE 26.6 26.2/14.0 .4 1998 38
ETNN Noervenich Germany LOW: TIE 21.2 20.8/0.9 .3 1989 36
ETHS Fassberg Germany LOW: TIE 21.2 20.8/-4.0 .3 1995 44
LFTH Hyeres France LOW: TIE 32.0 31.8/26.1 .1 1983 36
LFOW Saint-Quentin France LOW: TIE 24.8 24.6/8.6 .1 1989 36
EHKD De Kooy Netherlands LOW: TIE 24.8 24.6/14.0 .1 1989 36
EHGR Gilze-Rijen Netherlands LOW: TIE 23.0 22.8/3.0 .1 1989 47
SBSV Salvador Aeroporto Brazil LOW: TIE 71.6 71.6/51.8 0 1984 40
LHPA Papa Hungary LOW: TIE 8.6 8.6/-6.2 0 1990 36
LFOR Chartres France LOW: TIE 23.0 23.0/11.3 0 1983 36
LFOJ Orleans France LOW: TIE 23.0 23.0/9.7 0 1983 36
LEVX Vigo / Peinador Spain LOW: TIE 30.2 30.2/28.4 0 1973 36
LEVS Madrid / Cuatro Vientos Spain LOW: TIE 24.8 24.8/19.4 0 1973 35
LEMD Madrid / Barajas Spain LOW: TIE 23.0 23.0/13.1 0 1973 36
LELC Murcia / San Javier Spain LOW: TIE 33.8 33.8/24.8 0 1973 36
LEGT Madrid / Getafe Spain LOW: TIE 24.8 24.8/19.0 0 1973 36
LEAL Alicante / El Altet Spain LOW: TIE 33.8 33.8/30.2 0 1973 36
KOCF Ocala Municipal, FL United States LOW: TIE 35.6 35.6/19.4 0 1996 44
ETUO Guetersloh Germany LOW: TIE 17.6 17.6/1.4 0 1989 39
EHVL Vlieland Netherlands LOW: TIE 28.4 28.4/17.6 0 1995 36
EBFS Florennes Belgium LOW: TIE 23.0 23.0/3.2 0 2004 36
DAON Tlemcen Zenata Algeria LOW: TIE 37.4 37.4/23.0 0 1981 36
KBOW Bartow Municipal, FL United States LOW: BROKEN 37.4 37.9/26.1 -.5 1989 40
MUHA Aeropuerto Jose Marti, Habana Cuba LOW: BROKEN 50.0 50.9/44.6 -.8 2008 41
EBLG Bierset Belgium LOW: BROKEN 23.0 23.9/1.4 -.8 1983 36
LKMT Ostrava / Mosnov Czech Republic LOW: BROKEN 3.2 4.3/-14.4 -1.1 1983 47
EDDL Duesseldorf Germany LOW: BROKEN 21.2 22.5/5.0 -1.3 1989 37
EPKT Katowice Poland LOW: BROKEN 1.4 2.8/-11.9 -1.4 1983 48
LFQG Nevers France LOW: BROKEN 19.4 21.2/8.2 -1.8 1989 35
LESA Salamanca / Matacan Spain LOW: BROKEN 17.6 19.4/11.1 -1.8 1973 36
LEBB Bilbao / Sondica Spain LOW: BROKEN 30.2 32.0/21.2 -1.8 1990 36
EHDL Deelen Netherlands LOW: BROKEN 21.2 23.0/1.4 -1.8 1952 47
EGQS Lossiemouth United Kingdom LOW: BROKEN 23.0 24.8/0.7 -1.8 1976 36
EBCI Charleroi / Gosselies Belgium LOW: BROKEN 24.8 26.6/6.6 -1.8 1989 36
EHBK Maastricht Airport Zuid Limburg Netherlands LOW: BROKEN 21.2 23.2/3.0 -2.0 1983 47
ETHN Niederstetten Germany LOW: BROKEN 19.4 22.5/-7.6 -3.1 1998 36
ESIB Satenas Sweden LOW: BROKEN 12.2 15.3/-15.3 -3.1 1997 36
LFLX Chateauroux France LOW: BROKEN 15.8 19.0/6.8 -3.2 1962 52
ENVA Trondheim / Vaernes Norway LOW: BROKEN -.3 3.2/-9.0 -3.5 1980 47
ENGM Oslo / Gardermoen Norway LOW: BROKEN -2.1 1.4/-18.4 -3.5 1978 47
LFLV Vichy France LOW: BROKEN 10.4 14.0/5.0 -3.6 1983 36
LFLD Bourges France LOW: BROKEN 19.4 23.0/9.7 -3.6 1983 36
LEIB Ibiza / Es Codola Spain LOW: BROKEN 37.4 41.0/32.0 -3.6 1980 36
ETSB Buechel Germany LOW: BROKEN 19.4 23.0/1.0 -3.6 1977 36
ENCN Kristiansand / Kjevik Norway LOW: BROKEN 10.4 14.7/-8.0 -4.3 1997 47
EPWR Wroclaw Ii Poland LOW: BROKEN -2.1 3.4/-7.1 -5.5 1983 41
LFBL Limoges France LOW: BROKEN 19.4 25.3/14.0 -5.9 1997 36
LOXT Tulln Austria LOW: BROKEN 12.2 18.7/-8.7 -6.5 1989 42
LEVD Valladolid / Villanubla Spain LOW: BROKEN 15.8 22.3/12.2 -6.5 2001 36
ENRY Rygge Norway LOW: BROKEN 3.2 9.7/-15.2 -6.5 1997 36
LELN Leon / Virgen Del Camino Spain LOW: BROKEN *15.8* 23.0/15.8 -7.2 1973 36
EGPD Aberdeen / Dyce United Kingdom LOW: BROKEN 17.6 26.4/-0.6 -8.8 2008 46
LKTB Brno / Turany Czech Republic LOW: BROKEN 1.4 10.4/-5.8 -9.0 1983 47
ENTO Torp Norway LOW: BROKEN 1.4 10.4/-4.0 -9.0 1997 36
ID City Country Type and
unofficial
status Current
Temp.
(°F) Unofficial
Daily/Monthly
Record (°F) Margin of
Daily
Record (°F) Year of
Daily
Record Database
Length
(years)

ID	City	Country	Type and unofficial status	Current Temp. (°F)	Unofficial Daily/Monthly Record (°F)	Margin of Daily Record (°F)	Year of Daily Record	Database Length (years)
URMT	Stavropol / Shpakovskoye	Russia	HIGH: BROKEN	57.2	53.6/68.0	3.6	2004	42
ZSNJ	Nanjing	China	HIGH: BROKEN	66.2	64.8/73.4	1.4	1989	45
ZSOF	Hefei	China	HIGH: BROKEN	66.2	65.7/75.2	.5	1989	45
WADA	Selaparang	Indonesia	HIGH: BROKEN	91.4	91.0/103.6	.4	2004	35
ZYTL	Dalian	China	HIGH: TIE	55.4	55.4/60.8	0	1977	45
YPAD	Adelaide Airport	Australia	HIGH: TIE	98.6	98.6/108.3	0	1994	40
UGSB	Batumi	Georgia	HIGH: TIE	75.2	75.2/81.0	0	1980	51
LGAL	Alexandroupoli Airport	Greece	HIGH: CLOSE	66.2	66.9/71.6	-.7	2008	44
YPCC	Cocos Island Airport	Christmas Island	HIGH: CLOSE	86.0	87.1/105.8	-1.0	1957	46
ZBHH	Hohhot	China	HIGH: CLOSE	42.8	44.1/52.9	-1.3	1983	44
RPMD	Davao Airport	Philippines	HIGH: CLOSE	91.4	92.7/102.2	-1.3	1987	35
ZGKL	Guilin	China	HIGH: CLOSE	73.4	74.8/82.4	-1.3	1989	47
ZHHH	Wuhan	China	HIGH: CLOSE	68.0	69.4/73.4	-1.4	1989	45
ZUUU	Chengdu	China	HIGH: CLOSE	62.6	64.4/77.0	-1.8	2004	45
ZSQD	Qingdao	China	HIGH: CLOSE	57.2	59.0/61.2	-1.8	2002	45
ZBYN	Taiyuan	China	HIGH: CLOSE	53.6	55.4/60.8	-1.8	1989	45
LGSY	Skiros	Greece	HIGH: CLOSE	66.2	68.0/78.8	-1.8	2008	42
WBGB	Bintulu	Malaysia	HIGH: CLOSE	89.6	91.4/106.9	-1.8	1994	47
ZPPP	Kunming	China	HIGH: CLOSE	68.0	70.7/82.4	-2.7	1998	52


LFMP	Perpignan	France	LOW: CLOSE	32.0	29.1/21.4	2.9	1983	36
SPIM	Lima-Callao / Aerop. Internacional Jorgechavez	Peru	LOW: CLOSE	62.6	60.1/49.5	2.5	1992	43
LEPP	Pamplona / Noain	Spain	LOW: CLOSE	26.6	24.1/14.0	2.5	1990	36
LKPR	Praha / Ruzyne	Czech Republic	LOW: CLOSE	12.2	10.0/-9.9	2.2	1958	52
ETAD	Spangdahlem	Germany	LOW: CLOSE	22.1	19.9/5.0	2.2	1958	54
EDFH	Hahn	Germany	LOW: CLOSE	21.2	19.0/1.4	2.2	1958	54
EBBR	Bruxelles National	Belgium	LOW: CLOSE	24.8	22.6/5.0	2.2	1989	47
ETOU	Wiesbaden	Germany	LOW: CLOSE	21.4	19.4/-4.0	2.0	1962	66
ESSV	Visby Flygplats	Sweden	LOW: CLOSE	24.8	22.8/-8.0	2.0	1988	36
EBBL	Kleine Brogel	Belgium	LOW: CLOSE	21.2	19.2/3.2	2.0	1983	36
UEST	Tiksi	Russia	LOW: CLOSE	-38.1	-40.0/-55.7	1.9	1960	61
SUMU	Carrasco	Uruguay	LOW: CLOSE	51.8	50.0/33.8	1.8	1974	42
LFTW	Nimes / Garons	France	LOW: CLOSE	26.6	24.8/19.4	1.8	1973	36
LFPO	Paris-Orly	France	LOW: CLOSE	26.6	24.8/9.3	1.8	1983	49
LFOT	Tours	France	LOW: CLOSE	26.6	24.8/9.9	1.8	1989	36
LEVC	Valencia / Aeropuerto	Spain	LOW: CLOSE	30.2	28.4/26.6	1.8	1973	36
LEBG	Burgos / Villafria	Spain	LOW: CLOSE	23.0	21.2/8.2	1.8	1973	36
ETHB	Bueckeburg	Germany	LOW: CLOSE	23.0	21.2/-0.8	1.8	1989	36
ELLX	Luxembourg / Luxembourg	Luxembourg	LOW: CLOSE	23.0	21.2/5.0	1.8	1973	44
EKYT	Aalborg	Denmark	LOW: CLOSE	21.2	19.4/-9.4	1.8	1980	40
EHVK	Volkel	Netherlands	LOW: CLOSE	23.0	21.2/-0.4	1.8	1989	45
EHEH	Eindhoven	Netherlands	LOW: CLOSE	23.0	21.2/1.4	1.8	1989	46
EGPE	Inverness / Dalcross	United Kingdom	LOW: CLOSE	28.4	26.6/1.4	1.8	1987	36
EBOS	Oostende Airport	Belgium	LOW: CLOSE	26.6	24.8/10.4	1.8	1989	38
EDDK	Koeln / Bonn	Germany	LOW: CLOSE	17.6	16.0/1.0	1.6	1933	56
EBBE	Beauvechain	Belgium	LOW: CLOSE	24.8	23.2/3.2	1.6	1989	36
ETEB	Ansbach / Katterbach	Germany	LOW: CLOSE	20.5	19.0/-8.0	1.5	1942	49
LFMH	St-Etienne Boutheon	France	LOW: CLOSE	15.8	14.4/8.6	1.4	1983	36
EGXU	Linton-On-Ouse	United Kingdom	LOW: CLOSE	30.2	29.1/8.6	1.1	1991	36
LETO	Madrid / Torrejon	Spain	LOW: CLOSE	23.0	22.1/10.9	.8	1962	49
EHAM	Amsterdam Airport Schiphol	Netherlands	LOW: CLOSE	23.0	22.1/5.0	.8	1989	45
EBDT	Schaffen	Belgium	LOW: TIE	23.0	22.5/0.5	.5	1989	36
LFPV	Villacoublay	France	LOW: TIE	26.6	26.2/14.0	.4	1998	38
ETNN	Noervenich	Germany	LOW: TIE	21.2	20.8/0.9	.3	1989	36
ETHS	Fassberg	Germany	LOW: TIE	21.2	20.8/-4.0	.3	1995	44
LFTH	Hyeres	France	LOW: TIE	32.0	31.8/26.1	.1	1983	36
LFOW	Saint-Quentin	France	LOW: TIE	24.8	24.6/8.6	.1	1989	36
EHKD	De Kooy	Netherlands	LOW: TIE	24.8	24.6/14.0	.1	1989	36
EHGR	Gilze-Rijen	Netherlands	LOW: TIE	23.0	22.8/3.0	.1	1989	47
SBSV	Salvador Aeroporto	Brazil	LOW: TIE	71.6	71.6/51.8	0	1984	40
LHPA	Papa	Hungary	LOW: TIE	8.6	8.6/-6.2	0	1990	36
LFOR	Chartres	France	LOW: TIE	23.0	23.0/11.3	0	1983	36
LFOJ	Orleans	France	LOW: TIE	23.0	23.0/9.7	0	1983	36
LEVX	Vigo / Peinador	Spain	LOW: TIE	30.2	30.2/28.4	0	1973	36
LEVS	Madrid / Cuatro Vientos	Spain	LOW: TIE	24.8	24.8/19.4	0	1973	35
LEMD	Madrid / Barajas	Spain	LOW: TIE	23.0	23.0/13.1	0	1973	36
LELC	Murcia / San Javier	Spain	LOW: TIE	33.8	33.8/24.8	0	1973	36
LEGT	Madrid / Getafe	Spain	LOW: TIE	24.8	24.8/19.0	0	1973	36
LEAL	Alicante / El Altet	Spain	LOW: TIE	33.8	33.8/30.2	0	1973	36
KOCF	Ocala Municipal, FL	United States	LOW: TIE	35.6	35.6/19.4	0	1996	44
ETUO	Guetersloh	Germany	LOW: TIE	17.6	17.6/1.4	0	1989	39
EHVL	Vlieland	Netherlands	LOW: TIE	28.4	28.4/17.6	0	1995	36
EBFS	Florennes	Belgium	LOW: TIE	23.0	23.0/3.2	0	2004	36
DAON	Tlemcen Zenata	Algeria	LOW: TIE	37.4	37.4/23.0	0	1981	36
KBOW	Bartow Municipal, FL	United States	LOW: BROKEN	37.4	37.9/26.1	-.5	1989	40
MUHA	Aeropuerto Jose Marti, Habana	Cuba	LOW: BROKEN	50.0	50.9/44.6	-.8	2008	41
EBLG	Bierset	Belgium	LOW: BROKEN	23.0	23.9/1.4	-.8	1983	36
LKMT	Ostrava / Mosnov	Czech Republic	LOW: BROKEN	3.2	4.3/-14.4	-1.1	1983	47
EDDL	Duesseldorf	Germany	LOW: BROKEN	21.2	22.5/5.0	-1.3	1989	37
EPKT	Katowice	Poland	LOW: BROKEN	1.4	2.8/-11.9	-1.4	1983	48
LFQG	Nevers	France	LOW: BROKEN	19.4	21.2/8.2	-1.8	1989	35
LESA	Salamanca / Matacan	Spain	LOW: BROKEN	17.6	19.4/11.1	-1.8	1973	36
LEBB	Bilbao / Sondica	Spain	LOW: BROKEN	30.2	32.0/21.2	-1.8	1990	36
EHDL	Deelen	Netherlands	LOW: BROKEN	21.2	23.0/1.4	-1.8	1952	47
EGQS	Lossiemouth	United Kingdom	LOW: BROKEN	23.0	24.8/0.7	-1.8	1976	36
EBCI	Charleroi / Gosselies	Belgium	LOW: BROKEN	24.8	26.6/6.6	-1.8	1989	36
EHBK	Maastricht Airport Zuid Limburg	Netherlands	LOW: BROKEN	21.2	23.2/3.0	-2.0	1983	47
ETHN	Niederstetten	Germany	LOW: BROKEN	19.4	22.5/-7.6	-3.1	1998	36
ESIB	Satenas	Sweden	LOW: BROKEN	12.2	15.3/-15.3	-3.1	1997	36
LFLX	Chateauroux	France	LOW: BROKEN	15.8	19.0/6.8	-3.2	1962	52
ENVA	Trondheim / Vaernes	Norway	LOW: BROKEN	-.3	3.2/-9.0	-3.5	1980	47
ENGM	Oslo / Gardermoen	Norway	LOW: BROKEN	-2.1	1.4/-18.4	-3.5	1978	47
LFLV	Vichy	France	LOW: BROKEN	10.4	14.0/5.0	-3.6	1983	36
LFLD	Bourges	France	LOW: BROKEN	19.4	23.0/9.7	-3.6	1983	36
LEIB	Ibiza / Es Codola	Spain	LOW: BROKEN	37.4	41.0/32.0	-3.6	1980	36
ETSB	Buechel	Germany	LOW: BROKEN	19.4	23.0/1.0	-3.6	1977	36
ENCN	Kristiansand / Kjevik	Norway	LOW: BROKEN	10.4	14.7/-8.0	-4.3	1997	47
EPWR	Wroclaw Ii	Poland	LOW: BROKEN	-2.1	3.4/-7.1	-5.5	1983	41
LFBL	Limoges	France	LOW: BROKEN	19.4	25.3/14.0	-5.9	1997	36
LOXT	Tulln	Austria	LOW: BROKEN	12.2	18.7/-8.7	-6.5	1989	42
LEVD	Valladolid / Villanubla	Spain	LOW: BROKEN	15.8	22.3/12.2	-6.5	2001	36
ENRY	Rygge	Norway	LOW: BROKEN	3.2	9.7/-15.2	-6.5	1997	36
LELN	Leon / Virgen Del Camino	Spain	LOW: BROKEN	15.8	23.0/15.8	-7.2	1973	36
EGPD	Aberdeen / Dyce	United Kingdom	LOW: BROKEN	17.6	26.4/-0.6	-8.8	2008	46
LKTB	Brno / Turany	Czech Republic	LOW: BROKEN	1.4	10.4/-5.8	-9.0	1983	47
ENTO	Torp	Norway	LOW: BROKEN	1.4	10.4/-4.0	-9.0	1997	36
ID	City	Country	Type and unofficial status	Current Temp. (°F)	Unofficial Daily/Monthly Record (°F)	Margin of Daily Record (°F)	Year of Daily Record	Database Length (years)