http://coolwx.com/record archive for 2010112806

*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)
UARR Uralsk Kazakhstan HIGH: BROKEN 44.6 39.2/72.1 5.4 1977 60
CYUX Hall Beach, N. W. T. Canada HIGH: BROKEN 30.2 25.0/32.0 5.2 2005 35
UWOO Orenburg / Tsentralny Russia HIGH: BROKEN 42.8 39.0/60.6 3.8 1969 64
BGTL Thule A. B. Greenland HIGH: BROKEN 34.9 33.3/42.4 1.6 1988 57
WALL Sepinggan Indonesia HIGH: BROKEN 91.4 90.7/101.7 .7 1999 38
LICJ Palermo / Punta Raisi Italy HIGH: BROKEN 73.4 73.0/87.1 .4 1967 44
ZHCC Zhengzhou China HIGH: TIE 62.6 62.6/82.6 0 1980 44
URMN Nalchik Russia HIGH: TIE 53.6 54.0/76.5 -.3 1969 41
KNRS Imperial Beach, CA United States HIGH: CLOSE 79.0 80.6/99.0 -1.5 2007 61
BGBW Narsarsuaq Greenland HIGH: CLOSE 55.4 57.4/65.3 -2.0 1942 54
VOMM Madras / Minambakkam India HIGH: CLOSE 86.0 88.2/101.5 -2.2 2007 42
LICD Lampedusa Italy HIGH: CLOSE 69.8 72.0/84.2 -2.2 1967 42
LGMT Mytilini Airport Greece HIGH: CLOSE 69.8 72.0/84.2 -2.2 1966 44
WBKK Kota Kinabalu Malaysia HIGH: CLOSE 89.6 92.1/102.2 -2.5 1982 47
CYFB Iqaluit, N. W. T. Canada HIGH: CLOSE 33.8 36.3/41.4 -2.5 1942 44
WAMM Menado / Dr. Sam Ratulangi Indonesia HIGH: CLOSE 87.8 90.5/100.4 -2.7 2003 41
YPCC Cocos Island Airport Christmas Island HIGH: CLOSE 84.2 87.1/99.0 -2.8 1957 46
DTKA Tabarka Tunisia HIGH: CLOSE 68.0 70.9/87.3 -2.9 1992 35

PLCH Christmas / Cassidy New Zealand LOW: CLOSE 77.0 74.1/68.0 2.9 1988 44
EHBK Maastricht Airport Zuid Limburg Netherlands LOW: CLOSE 24.8 21.9/16.2 2.9 1993 47
TNCC Hato Airport, Curacao Netherlands Antilles LOW: CLOSE 77.0 74.3/68.0 2.7 1982 47
EFMA Mariehamn / Aland Island Finland LOW: CLOSE 14.0 11.3/0.0 2.7 1988 46
EBCV Chievres Belgium LOW: CLOSE 24.8 22.1/15.8 2.7 1993 36
LFQQ Lille France LOW: CLOSE 24.8 22.3/17.6 2.5 1993 37
ETAD Spangdahlem Germany LOW: CLOSE 26.4 24.1/12.2 2.3 2007 54
EBOS Oostende Airport Belgium LOW: CLOSE 26.6 24.3/12.2 2.3 1993 38
LEGT Madrid / Getafe Spain LOW: CLOSE 26.6 24.4/22.6 2.2 2008 36
KCEW Crestview, FL United States LOW: CLOSE 30.0 27.9/19.0 2.1 1993 44
LIMK Torino / Bric Della Croce Italy LOW: CLOSE 30.2 28.2/12.2 2.0 1985 36
ENDU Bardufoss Norway LOW: CLOSE -12.9 -14.8/-22.0 1.9 1983 47
LPPR Porto / Pedras Rubras Portugal LOW: CLOSE 35.6 33.8/29.8 1.8 1980 36
LFOP Rouen France LOW: CLOSE 24.8 23.0/17.1 1.8 1977 36
LEVX Vigo / Peinador Spain LOW: CLOSE 33.8 32.0/32.0 1.8 1976 36
LERS Reus / Aeropuerto Spain LOW: CLOSE 30.2 28.4/23.2 1.8 1973 36
ETHE Rheine-Bentlage Germany LOW: CLOSE 21.2 19.4/12.7 1.8 1977 36
ETHB Bueckeburg Germany LOW: CLOSE 23.0 21.2/8.6 1.8 1977 36
ENKB Kristiansund / Kvernberget Norway LOW: CLOSE 19.4 17.6/15.8 1.8 1985 36
EGWU Northolt United Kingdom LOW: CLOSE 21.2 19.4/19.4 1.8 1973 36
EGJB Guernsey Airport United Kingdom LOW: CLOSE 33.8 32.0/26.6 1.8 1993 47
EDDH Hamburg-Fuhlsbuettel Germany LOW: CLOSE 17.6 15.8/5.0 1.8 1973 56
EBFS Florennes Belgium LOW: CLOSE 23.0 21.2/9.0 1.8 1977 36
EBCI Charleroi / Gosselies Belgium LOW: CLOSE 24.8 23.0/16.3 1.8 1993 36
KTOI Troy, AL United States LOW: CLOSE 30.0 28.4/18.0 1.6 2002 38
EGJJ Jersey Airport United Kingdom LOW: CLOSE 32.0 30.6/28.4 1.4 1993 36
EHLW Leeuwarden Netherlands LOW: CLOSE 24.8 23.5/8.6 1.3 1993 47
KEWN New Bern, NC United States LOW: CLOSE 30.0 28.9/17.1 1.1 2002 43
EGPL Benbecula United Kingdom LOW: CLOSE 26.6 25.5/23.2 1.1 1985 36
KLHW Ft. Stewart, GA United States LOW: TIE 33.4 33.1/18.0 .2 1974 42
LKLN Plzen Line Czech Republic LOW: TIE 17.6 17.4/5.0 .2 1985 41
LFRK Caen France LOW: TIE 23.0 23.0/21.2 0 1989 36
LFOE Evreux France LOW: TIE 24.8 24.8/16.0 0 1973 50
ETNW Wunstorf Germany LOW: TIE 21.2 21.2/8.6 0 1977 42
EHWO Woensdrecht Netherlands LOW: TIE 24.8 24.8/12.2 0 1996 35
EHVK Volkel Netherlands LOW: TIE 21.2 21.2/14.9 0 1977 45
EHGR Gilze-Rijen Netherlands LOW: TIE 23.0 23.0/12.7 0 1977 47
EGSS Stansted Airport United Kingdom LOW: TIE *21.2* 21.2/21.2 0 1973 36
EGQK Kinloss United Kingdom LOW: TIE 23.0 23.0/12.7 0 1977 36
EGDM Boscombe Down United Kingdom LOW: TIE 24.8 24.8/19.0 0 1978 36
EDDS Stuttgart-Echterdingen Germany LOW: TIE 21.2 21.2/5.2 0 1978 53
EBDT Schaffen Belgium LOW: TIE 24.8 24.8/16.2 0 1977 36
EBAW Antwerpen / Deurne Belgium LOW: TIE 23.0 23.0/16.5 0 1993 38
EGPU Tiree United Kingdom LOW: BROKEN 28.4 28.6/22.8 -.2 1985 38
EGVN Brize Norton United Kingdom LOW: BROKEN 24.8 25.2/14.9 -.3 1987 51
EGYM Marham United Kingdom LOW: BROKEN 21.2 21.6/18.1 -.4 1985 39
EBBL Kleine Brogel Belgium LOW: BROKEN 21.2 21.7/12.2 -.5 1993 36
EGNH Blackpool Airport United Kingdom LOW: BROKEN *19.4* 20.5/19.6 -1.1 1985 36
EGVP Middle Wallop United Kingdom LOW: BROKEN 24.8 26.1/15.8 -1.3 1985 36
EHGG Groningen Airport Eelde Netherlands LOW: BROKEN 21.2 22.6/6.8 -1.4 1993 45
EGVO Odiham United Kingdom LOW: BROKEN 23.0 24.6/4.8 -1.6 1989 36
LECO La Coruna / Alvedro Spain LOW: BROKEN 35.6 37.4/30.2 -1.8 2007 35
KOMH Orange, VA United States LOW: BROKEN 24.8 26.6/17.6 -1.8 2008 43
ETHS Fassberg Germany LOW: BROKEN 15.8 17.6/1.4 -1.8 1973 44
EICK Cork Airport Ireland LOW: BROKEN 28.4 30.2/26.1 -1.8 1985 36
EHVL Vlieland Netherlands LOW: BROKEN 28.4 30.2/23.0 -1.8 1977 36
EGXT Wittering United Kingdom LOW: BROKEN 21.2 23.0/11.3 -1.8 1973 36
EGUW Wattisham United Kingdom LOW: BROKEN 21.2 23.0/9.7 -1.8 1973 36
EGNS Isle Of Man / Ronaldsway Airport United Kingdom LOW: BROKEN 26.6 28.4/14.4 -1.8 1978 36
EGLL London / Heathrow Airport United Kingdom LOW: BROKEN 23.0 24.8/13.3 -1.8 1973 47
EGDL Lyneham United Kingdom LOW: BROKEN 23.0 24.8/18.3 -1.8 1978 36
EDDW Bremen Germany LOW: BROKEN 19.4 21.2/7.0 -1.8 1973 49
EDDL Duesseldorf Germany LOW: BROKEN 21.2 23.0/17.4 -1.8 1977 37
LKPR Praha / Ruzyne Czech Republic LOW: BROKEN 14.0 16.5/1.0 -2.5 1985 52
KEGI Duke Field / Eglin Auxiliary, FL United States LOW: BROKEN 31.8 35.1/19.4 -3.3 1956 57
EGXU Linton-On-Ouse United Kingdom LOW: BROKEN *15.8* 19.2/15.8 -3.4 1985 36
ETMN Nordholz Germany LOW: BROKEN 19.4 23.0/14.0 -3.6 1973 38
ETHC Celle Germany LOW: BROKEN 19.4 23.0/8.6 -3.6 1989 51
EHEH Eindhoven Netherlands LOW: BROKEN 21.2 24.8/15.4 -3.6 1973 46
EGXW Waddington United Kingdom LOW: BROKEN 21.2 24.8/13.5 -3.6 1973 38
EGXC Coningsby Royal Air Force Base United Kingdom LOW: BROKEN 19.4 23.0/14.0 -3.6 1973 43
EGUL Lakenheath Royal Air Force Base United Kingdom LOW: BROKEN 19.0 23.0/17.1 -4.0 1973 60
EGYD Cranwell United Kingdom LOW: BROKEN 21.2 26.6/19.4 -5.4 1973 42
EGXJ Cottesmore United Kingdom LOW: BROKEN *15.8* 21.2/19.4 -5.4 1973 35
EGAA Belfast / Aldergrove Airport United Kingdom LOW: BROKEN 17.6 23.0/17.1 -5.4 1978 37
EGUB Benson United Kingdom LOW: BROKEN *17.6* 23.7/17.6 -6.1 1996 36
EGCC Manchester Airport United Kingdom LOW: BROKEN *17.6* 24.1/17.6 -6.5 1996 36
LFRC Cherbourg / Maupertus France LOW: BROKEN 26.6 33.8/24.8 -7.2 1977 36
EGPE Inverness / Dalcross United Kingdom LOW: BROKEN 17.6 24.8/14.0 -7.2 2008 36
EIDW Dublin Airport Ireland LOW: BROKEN *19.4* 27.1/26.2 -7.7 1985 36
EGFF Cardiff-Wales Airport United Kingdom LOW: BROKEN *19.4* 27.7/21.9 -8.3 1985 36
EGDR Culdrose United Kingdom LOW: BROKEN *21.2* 30.2/28.6 -9.0 1978 36
EGBB Birmingham / Airport United Kingdom LOW: BROKEN *14.0* 23.0/14.0 -9.0 1973 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)
UARR	Uralsk	Kazakhstan	HIGH: BROKEN	44.6	39.2/72.1	5.4	1977	60
CYUX	Hall Beach, N. W. T.	Canada	HIGH: BROKEN	30.2	25.0/32.0	5.2	2005	35
UWOO	Orenburg / Tsentralny	Russia	HIGH: BROKEN	42.8	39.0/60.6	3.8	1969	64
BGTL	Thule A. B.	Greenland	HIGH: BROKEN	34.9	33.3/42.4	1.6	1988	57
WALL	Sepinggan	Indonesia	HIGH: BROKEN	91.4	90.7/101.7	.7	1999	38
LICJ	Palermo / Punta Raisi	Italy	HIGH: BROKEN	73.4	73.0/87.1	.4	1967	44
ZHCC	Zhengzhou	China	HIGH: TIE	62.6	62.6/82.6	0	1980	44
URMN	Nalchik	Russia	HIGH: TIE	53.6	54.0/76.5	-.3	1969	41
KNRS	Imperial Beach, CA	United States	HIGH: CLOSE	79.0	80.6/99.0	-1.5	2007	61
BGBW	Narsarsuaq	Greenland	HIGH: CLOSE	55.4	57.4/65.3	-2.0	1942	54
VOMM	Madras / Minambakkam	India	HIGH: CLOSE	86.0	88.2/101.5	-2.2	2007	42
LICD	Lampedusa	Italy	HIGH: CLOSE	69.8	72.0/84.2	-2.2	1967	42
LGMT	Mytilini Airport	Greece	HIGH: CLOSE	69.8	72.0/84.2	-2.2	1966	44
WBKK	Kota Kinabalu	Malaysia	HIGH: CLOSE	89.6	92.1/102.2	-2.5	1982	47
CYFB	Iqaluit, N. W. T.	Canada	HIGH: CLOSE	33.8	36.3/41.4	-2.5	1942	44
WAMM	Menado / Dr. Sam Ratulangi	Indonesia	HIGH: CLOSE	87.8	90.5/100.4	-2.7	2003	41
YPCC	Cocos Island Airport	Christmas Island	HIGH: CLOSE	84.2	87.1/99.0	-2.8	1957	46
DTKA	Tabarka	Tunisia	HIGH: CLOSE	68.0	70.9/87.3	-2.9	1992	35


PLCH	Christmas / Cassidy	New Zealand	LOW: CLOSE	77.0	74.1/68.0	2.9	1988	44
EHBK	Maastricht Airport Zuid Limburg	Netherlands	LOW: CLOSE	24.8	21.9/16.2	2.9	1993	47
TNCC	Hato Airport, Curacao	Netherlands Antilles	LOW: CLOSE	77.0	74.3/68.0	2.7	1982	47
EFMA	Mariehamn / Aland Island	Finland	LOW: CLOSE	14.0	11.3/0.0	2.7	1988	46
EBCV	Chievres	Belgium	LOW: CLOSE	24.8	22.1/15.8	2.7	1993	36
LFQQ	Lille	France	LOW: CLOSE	24.8	22.3/17.6	2.5	1993	37
ETAD	Spangdahlem	Germany	LOW: CLOSE	26.4	24.1/12.2	2.3	2007	54
EBOS	Oostende Airport	Belgium	LOW: CLOSE	26.6	24.3/12.2	2.3	1993	38
LEGT	Madrid / Getafe	Spain	LOW: CLOSE	26.6	24.4/22.6	2.2	2008	36
KCEW	Crestview, FL	United States	LOW: CLOSE	30.0	27.9/19.0	2.1	1993	44
LIMK	Torino / Bric Della Croce	Italy	LOW: CLOSE	30.2	28.2/12.2	2.0	1985	36
ENDU	Bardufoss	Norway	LOW: CLOSE	-12.9	-14.8/-22.0	1.9	1983	47
LPPR	Porto / Pedras Rubras	Portugal	LOW: CLOSE	35.6	33.8/29.8	1.8	1980	36
LFOP	Rouen	France	LOW: CLOSE	24.8	23.0/17.1	1.8	1977	36
LEVX	Vigo / Peinador	Spain	LOW: CLOSE	33.8	32.0/32.0	1.8	1976	36
LERS	Reus / Aeropuerto	Spain	LOW: CLOSE	30.2	28.4/23.2	1.8	1973	36
ETHE	Rheine-Bentlage	Germany	LOW: CLOSE	21.2	19.4/12.7	1.8	1977	36
ETHB	Bueckeburg	Germany	LOW: CLOSE	23.0	21.2/8.6	1.8	1977	36
ENKB	Kristiansund / Kvernberget	Norway	LOW: CLOSE	19.4	17.6/15.8	1.8	1985	36
EGWU	Northolt	United Kingdom	LOW: CLOSE	21.2	19.4/19.4	1.8	1973	36
EGJB	Guernsey Airport	United Kingdom	LOW: CLOSE	33.8	32.0/26.6	1.8	1993	47
EDDH	Hamburg-Fuhlsbuettel	Germany	LOW: CLOSE	17.6	15.8/5.0	1.8	1973	56
EBFS	Florennes	Belgium	LOW: CLOSE	23.0	21.2/9.0	1.8	1977	36
EBCI	Charleroi / Gosselies	Belgium	LOW: CLOSE	24.8	23.0/16.3	1.8	1993	36
KTOI	Troy, AL	United States	LOW: CLOSE	30.0	28.4/18.0	1.6	2002	38
EGJJ	Jersey Airport	United Kingdom	LOW: CLOSE	32.0	30.6/28.4	1.4	1993	36
EHLW	Leeuwarden	Netherlands	LOW: CLOSE	24.8	23.5/8.6	1.3	1993	47
KEWN	New Bern, NC	United States	LOW: CLOSE	30.0	28.9/17.1	1.1	2002	43
EGPL	Benbecula	United Kingdom	LOW: CLOSE	26.6	25.5/23.2	1.1	1985	36
KLHW	Ft. Stewart, GA	United States	LOW: TIE	33.4	33.1/18.0	.2	1974	42
LKLN	Plzen Line	Czech Republic	LOW: TIE	17.6	17.4/5.0	.2	1985	41
LFRK	Caen	France	LOW: TIE	23.0	23.0/21.2	0	1989	36
LFOE	Evreux	France	LOW: TIE	24.8	24.8/16.0	0	1973	50
ETNW	Wunstorf	Germany	LOW: TIE	21.2	21.2/8.6	0	1977	42
EHWO	Woensdrecht	Netherlands	LOW: TIE	24.8	24.8/12.2	0	1996	35
EHVK	Volkel	Netherlands	LOW: TIE	21.2	21.2/14.9	0	1977	45
EHGR	Gilze-Rijen	Netherlands	LOW: TIE	23.0	23.0/12.7	0	1977	47
EGSS	Stansted Airport	United Kingdom	LOW: TIE	21.2	21.2/21.2	0	1973	36
EGQK	Kinloss	United Kingdom	LOW: TIE	23.0	23.0/12.7	0	1977	36
EGDM	Boscombe Down	United Kingdom	LOW: TIE	24.8	24.8/19.0	0	1978	36
EDDS	Stuttgart-Echterdingen	Germany	LOW: TIE	21.2	21.2/5.2	0	1978	53
EBDT	Schaffen	Belgium	LOW: TIE	24.8	24.8/16.2	0	1977	36
EBAW	Antwerpen / Deurne	Belgium	LOW: TIE	23.0	23.0/16.5	0	1993	38
EGPU	Tiree	United Kingdom	LOW: BROKEN	28.4	28.6/22.8	-.2	1985	38
EGVN	Brize Norton	United Kingdom	LOW: BROKEN	24.8	25.2/14.9	-.3	1987	51
EGYM	Marham	United Kingdom	LOW: BROKEN	21.2	21.6/18.1	-.4	1985	39
EBBL	Kleine Brogel	Belgium	LOW: BROKEN	21.2	21.7/12.2	-.5	1993	36
EGNH	Blackpool Airport	United Kingdom	LOW: BROKEN	19.4	20.5/19.6	-1.1	1985	36
EGVP	Middle Wallop	United Kingdom	LOW: BROKEN	24.8	26.1/15.8	-1.3	1985	36
EHGG	Groningen Airport Eelde	Netherlands	LOW: BROKEN	21.2	22.6/6.8	-1.4	1993	45
EGVO	Odiham	United Kingdom	LOW: BROKEN	23.0	24.6/4.8	-1.6	1989	36
LECO	La Coruna / Alvedro	Spain	LOW: BROKEN	35.6	37.4/30.2	-1.8	2007	35
KOMH	Orange, VA	United States	LOW: BROKEN	24.8	26.6/17.6	-1.8	2008	43
ETHS	Fassberg	Germany	LOW: BROKEN	15.8	17.6/1.4	-1.8	1973	44
EICK	Cork Airport	Ireland	LOW: BROKEN	28.4	30.2/26.1	-1.8	1985	36
EHVL	Vlieland	Netherlands	LOW: BROKEN	28.4	30.2/23.0	-1.8	1977	36
EGXT	Wittering	United Kingdom	LOW: BROKEN	21.2	23.0/11.3	-1.8	1973	36
EGUW	Wattisham	United Kingdom	LOW: BROKEN	21.2	23.0/9.7	-1.8	1973	36
EGNS	Isle Of Man / Ronaldsway Airport	United Kingdom	LOW: BROKEN	26.6	28.4/14.4	-1.8	1978	36
EGLL	London / Heathrow Airport	United Kingdom	LOW: BROKEN	23.0	24.8/13.3	-1.8	1973	47
EGDL	Lyneham	United Kingdom	LOW: BROKEN	23.0	24.8/18.3	-1.8	1978	36
EDDW	Bremen	Germany	LOW: BROKEN	19.4	21.2/7.0	-1.8	1973	49
EDDL	Duesseldorf	Germany	LOW: BROKEN	21.2	23.0/17.4	-1.8	1977	37
LKPR	Praha / Ruzyne	Czech Republic	LOW: BROKEN	14.0	16.5/1.0	-2.5	1985	52
KEGI	Duke Field / Eglin Auxiliary, FL	United States	LOW: BROKEN	31.8	35.1/19.4	-3.3	1956	57
EGXU	Linton-On-Ouse	United Kingdom	LOW: BROKEN	15.8	19.2/15.8	-3.4	1985	36
ETMN	Nordholz	Germany	LOW: BROKEN	19.4	23.0/14.0	-3.6	1973	38
ETHC	Celle	Germany	LOW: BROKEN	19.4	23.0/8.6	-3.6	1989	51
EHEH	Eindhoven	Netherlands	LOW: BROKEN	21.2	24.8/15.4	-3.6	1973	46
EGXW	Waddington	United Kingdom	LOW: BROKEN	21.2	24.8/13.5	-3.6	1973	38
EGXC	Coningsby Royal Air Force Base	United Kingdom	LOW: BROKEN	19.4	23.0/14.0	-3.6	1973	43
EGUL	Lakenheath Royal Air Force Base	United Kingdom	LOW: BROKEN	19.0	23.0/17.1	-4.0	1973	60
EGYD	Cranwell	United Kingdom	LOW: BROKEN	21.2	26.6/19.4	-5.4	1973	42
EGXJ	Cottesmore	United Kingdom	LOW: BROKEN	15.8	21.2/19.4	-5.4	1973	35
EGAA	Belfast / Aldergrove Airport	United Kingdom	LOW: BROKEN	17.6	23.0/17.1	-5.4	1978	37
EGUB	Benson	United Kingdom	LOW: BROKEN	17.6	23.7/17.6	-6.1	1996	36
EGCC	Manchester Airport	United Kingdom	LOW: BROKEN	17.6	24.1/17.6	-6.5	1996	36
LFRC	Cherbourg / Maupertus	France	LOW: BROKEN	26.6	33.8/24.8	-7.2	1977	36
EGPE	Inverness / Dalcross	United Kingdom	LOW: BROKEN	17.6	24.8/14.0	-7.2	2008	36
EIDW	Dublin Airport	Ireland	LOW: BROKEN	19.4	27.1/26.2	-7.7	1985	36
EGFF	Cardiff-Wales Airport	United Kingdom	LOW: BROKEN	19.4	27.7/21.9	-8.3	1985	36
EGDR	Culdrose	United Kingdom	LOW: BROKEN	21.2	30.2/28.6	-9.0	1978	36
EGBB	Birmingham / Airport	United Kingdom	LOW: BROKEN	14.0	23.0/14.0	-9.0	1973	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)