Vostok temperature data (original) (raw)
Monthly mean surface temperature at Vostok station
1. Dataset information
Station location: 78°27'S, 106°52'E, central ice plateau, East Antarctica.
WMO identification: 89606
Data in black are derived from the READER dataset and are calculated from 6-hourly synoptic data. Values in red before 2003 are monthly figures from CLIMAT messages. Data in red from 2003 onwards have been provided by Dr Victor Lagun of the Arctic and Antarctic Research Institute (AARI), St Petersburg; they are also believed to have been calculated from synoptic data but have not been checked by the READER team. It is possible that values in red may be updated in the future.
Go straight to the data. 
2. Derived climate information
(i) Annual, seasonal and monthly temperature statistics for Vostok
These data are updated monthly. With regard to summer (DJF) the year refers to the December.
Summary of annual, seasonal and monthly Vostok surface temperature statistics
| Annual/Season/Month | Mean(°C) | σ(°C) | Min.(°C) | q0.25(°C) | q0.75(°C) | Max.(°C) | Period | n |
|---|---|---|---|---|---|---|---|---|
| Calendar year | −55.2 | 0.9 | −57.3 | −55.7 | −54.8 | −53.2 | 1958-61, 64-81, 83-93, 95, 97-02, 2005-2011 | 47 |
| Autumn | −62.8 | 1.7 | −66.4 | −64.1 | −61.8 | −59.1 | 1958-61, 63-93, 95, 97-02, 2004-2012 | 51 |
| Winter | −66.7 | 2.2 | −70.0 | −68.3 | −64.8 | −62.6 | 1958-61, 63-81, 83-93, 95, 97-02, 2004-2012 | 50 |
| Spring | −55.3 | 1.3 | −58.5 | −56.0 | −54.4 | −52.7 | 1958-61, 63-93, 95, 97-02, 2004-2012 | 51 |
| Summer | −36.0 | 1.0 | −37.9 | −36.6 | −35.2 | −34.1 | 1958-60, 63-92, 94, 97-01, 2005-2011 | 47 |
| January | −32.0 | 1.4 | −35.5 | −33.3 | −31.1 | −29.0 | 1958-61, 64-95, 97-03, 2005-2012 | 51 |
| February | −44.3 | 1.6 | −47.4 | −45.5 | −43.5 | −39.4 | 1958-61, 63-93, 95, 97-02, 2005-2012 | 50 |
| March | −57.9 | 2.1 | −63.9 | −59.0 | −56.9 | −52.9 | 1958-61, 63-93, 95, 97-02, 2004-2012 | 51 |
| April | −64.8 | 2.3 | −70.4 | −66.4 | −62.7 | −60.3 | 1958-61, 63-93, 95, 97-02, 2004-2012 | 51 |
| May | −65.8 | 2.7 | −70.5 | −67.9 | −63.9 | −59.2 | 1958-61, 63-93, 95, 97-02, 2004-2012 | 51 |
| June | −65.4 | 3.0 | −70.8 | −67.6 | −63.4 | −59.3 | 1958-61, 63-81, 83-93, 95, 97-02, 2004-2012 | 50 |
| July | −66.7 | 3.5 | −73.8 | −69.3 | −64.6 | −56.7 | 1958-61, 63-93, 95, 97-02, 2004-2012 | 51 |
| August | −68.0 | 3.5 | −75.4 | −70.8 | −66.2 | −60.6 | 1958-61, 63-93, 95, 97-02, 2004-2012 | 51 |
| September | −66.1 | 3.1 | −71.8 | −68.0 | −64.0 | −57.5 | 1958-61, 63-93, 95, 97-02, 2004-2012 | 51 |
| October | −57.1 | 1.7 | −61.3 | −58.2 | −56.0 | −53.5 | 1958-61, 63-93, 95, 97-02, 2004-2012 | 51 |
| November | −42.7 | 1.5 | −45.4 | −43.8 | −41.9 | −38.8 | 1958-61, 63-93, 95, 97-02, 2004-2012 | 51 |
| December | −31.8 | 1.5 | −35.1 | −33.1 | −30.8 | −28.0 | 1958-61, 63-95, 97-02, 2004-2011 | 51 |
The monthly data are summarised in a PDF plot: Adobe Acrobat Reader can be downloaded from here 
Vostok monthly temperature statistics: this plot shows the mean, quartiles and range for each month.
(ii) Annual, seasonal and monthly trends in the Vostok surface temperature data
The trends listed below include 95% confidence intervals. The methodology is based upon:
Santer B.D., T.M.L. Wigley, J.S. Boyle, D. J. Gaffen, J.J. Hnilo, D. Nychka, D.E. Parker and K.E. Taylor. 2000: Statistical significance of trends and trend differences in layer-average temperature time series. Journal of Geophysical Research, 105, 7337-7356.
Briefly, an effective sample size is calculated based on the lag-1 autocorrelation coefficient of the regression residuals, This effective sample size is used for the computation of the standard error and in indexing the critical values of the Student''s t distribution.
The significance level of the trend is given if it is less than 10%, 5% or 1%. With regard to summer (DJF) the year refers to the December.
Summary of trends in annual, seasonal and monthly Vostok surface temperature
| Annual/Season/Month | Annual trend(°C a−1) | Significance(%) | Period | n |
|---|---|---|---|---|
| Calendar year | +0.0169 ± 0.0156 | 5 | 1958-61, 64-81, 83-93, 95, 97-02, 2005-2011 | 47 |
| Autumn | +0.0076 ± 0.0299 | - | 1958-61, 63-93, 95, 97-02, 2004-2012 | 51 |
| Winter | +0.0156 ± 0.0324 | - | 1958-61, 63-81, 83-93, 95, 97-02, 2004-2012 | 50 |
| Spring | +0.0115 ± 0.0239 | - | 1958-61, 63-93, 95, 97-02, 2004-2012 | 51 |
| Summer | +0.0180 ± 0.0194 | 10 | 1958-60, 63-92, 94, 97-01, 2005-2011 | 47 |
| January | +0.0183 ± 0.0223 | - | 1958-61, 64-95, 97-03, 2005-2012 | 51 |
| February | +0.0021 ± 0.0280 | - | 1958-61, 63-93, 95, 97-02, 2005-2012 | 50 |
| March | +0.0108 ± 0.0349 | - | 1958-61, 63-93, 95, 97-02, 2004-2012 | 51 |
| April | +0.0091 ± 0.0441 | - | 1958-61, 63-93, 95, 97-02, 2004-2012 | 51 |
| May | +0.0028 ± 0.0482 | - | 1958-61, 63-93, 95, 97-02, 2004-2012 | 51 |
| June | −0.0075 ± 0.0425 | - | 1958-61, 63-81, 83-93, 95, 97-02, 2004-2012 | 50 |
| July | +0.0305 ± 0.0442 | - | 1958-61, 63-93, 95, 97-02, 2004-2012 | 51 |
| August | +0.0240 ± 0.0586 | - | 1958-61, 63-93, 95, 97-02, 2004-2012 | 51 |
| September | −0.0037 ± 0.0570 | - | 1958-61, 63-93, 95, 97-02, 2004-2012 | 51 |
| October | +0.0004 ± 0.0441 | - | 1958-61, 63-93, 95, 97-02, 2004-2012 | 51 |
| November | +0.0379 ± 0.0182 | 1 | 1958-61, 63-93, 95, 97-02, 2004-2012 | 51 |
| December | +0.0278 ± 0.0275 | 10 | 1958-61, 63-95, 97-02, 2004-2011 | 51 |
PDF plots of the annual and seasonal data: Adobe Acrobat Reader can be downloaded from here
Calendar year Autumn (MAM) Winter (JJA) Spring (SON) Summer (DJF)
3. The dataset
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN1958 -30.9 -44.6 -57.0 -63.8 -62.5 -67.9 -65.3 -71.7 -66.1 -58.6 -43.2 -33.2 -55.4
1959 -34.3 -43.7 -52.9 -61.8 -64.7 -66.3 -68.4 -69.5 -68.4 -57.6 -44.5 -32.1 -55.3
1960 -33.4 -43.7 -61.8 -67.6 -67.8 -70.7 -68.3 -70.9 -66.5 -58.6 -44.8 -33.2 -57.3
1961 -32.9 -43.0 -57.7 -65.2 -65.3 -60.0 -64.1 -67.1 -62.6 -54.8 -43.4 -34.0 -54.2
1962
1963 -45.3 -59.3 -64.3 -66.0 -65.0 -63.9 -63.7 -57.5 -58.0 -45.2 -33.4
1964 -32.4 -46.3 -61.1 -69.3 -68.8 -61.1 -66.6 -61.9 -70.4 -58.2 -42.3 -32.4 -55.9
1965 -33.6 -43.1 -58.9 -65.9 -64.1 -66.7 -69.3 -66.1 -66.9 -56.8 -44.0 -33.3 -55.7
1966 -35.5 -42.7 -54.2 -66.9 -67.2 -68.9 -67.3 -71.5 -67.8 -56.8 -42.9 -31.6 -56.1
1967 -30.4 -45.7 -54.8 -66.3 -69.2 -66.9 -67.3 -73.0 -64.6 -57.1 -41.3 -31.1 -55.6
1968 -33.3 -44.6 -57.9 -62.5 -65.0 -63.7 -71.2 -70.2 -71.5 -53.5 -42.5 -33.0 -55.7
1969 -32.6 -43.8 -59.8 -63.0 -66.8 -62.4 -69.3 -69.5 -69.8 -55.5 -43.7 -32.5 -55.7
1970 -31.8 -44.0 -55.8 -64.6 -66.1 -62.7 -67.2 -70.1 -64.1 -55.5 -44.4 -32.1 -54.9
1971 -30.1 -41.5 -58.2 -65.3 -63.5 -65.6 -69.1 -66.7 -63.3 -56.2 -43.4 -30.6 -54.5
1972 -31.1 -44.9 -57.7 -65.1 -65.8 -66.4 -68.8 -61.5 -62.5 -56.4 -43.8 -33.6 -54.8
1973 -34.1 -44.4 -59.0 -60.3 -63.6 -64.6 -68.4 -71.5 -62.7 -56.0 -40.5 -33.8 -54.9
1974 -29.4 -46.6 -62.0 -68.4 -66.8 -62.9 -66.1 -68.3 -68.7 -55.2 -41.9 -31.9 -55.7
1975 -32.1 -45.5 -56.0 -63.5 -61.7 -66.5 -69.5 -73.2 -69.9 -56.1 -42.0 -33.1 -55.8
1976 -32.4 -43.5 -58.0 -66.3 -70.5 -64.7 -62.8 -65.4 -68.1 -57.4 -42.4 -28.9 -55.0
1977 -30.0 -43.3 -57.3 -67.0 -62.5 -64.5 -64.0 -67.3 -71.1 -59.2 -45.2 -31.5 -55.2
1978 -34.5 -43.6 -58.7 -64.7 -64.5 -64.5 -63.2 -73.5 -64.3 -58.7 -41.9 -29.9 -55.2
1979 -31.9 -45.9 -60.5 -62.2 -69.4 -69.4 -72.3 -68.3 -67.7 -61.2 -43.9 -31.0 -57.0
1980 -30.0 -43.3 -54.5 -61.8 -65.3 -61.7 -64.6 -61.9 -62.9 -58.0 -42.5 -31.7 -53.2
1981 -33.2 -44.9 -56.6 -66.7 -69.5 -66.4 -63.0 -60.7 -61.4 -58.8 -44.2 -31.5 -54.7
1982 -32.6 -44.4 -63.9 -65.3 -63.7 -63.2 -72.4 -71.3 -57.3 -38.8 -31.2
1983 -31.5 -44.6 -58.0 -63.5 -60.4 -61.9 -73.8 -67.1 -60.8 -57.4 -45.4 -33.2 -54.8
1984 -32.1 -47.4 -57.2 -62.8 -61.0 -70.8 -65.5 -68.1 -63.1 -58.0 -41.8 -30.4 -54.9
1985 -31.2 -46.7 -59.7 -62.2 -68.1 -66.6 -70.4 -66.3 -66.6 -58.3 -44.7 -32.4 -56.1
1986 -30.8 -39.4 -59.1 -66.7 -66.7 -70.6 -68.0 -69.3 -66.3 -56.9 -43.0 -32.0 -55.7
1987 -31.1 -45.7 -57.0 -64.4 -66.8 -59.7 -65.8 -75.4 -67.0 -56.2 -45.0 -32.5 -55.6
1988 -31.6 -45.9 -56.2 -65.5 -63.4 -63.9 -70.6 -66.7 -65.8 -55.3 -43.2 -33.6 -55.1
1989 -34.6 -45.0 -56.8 -66.5 -68.9 -68.5 -67.3 -64.7 -61.2 -54.3 -42.6 -28.0 -54.9
1990 -30.4 -44.4 -59.2 -61.8 -66.8 -65.5 -66.2 -69.4 -66.0 -56.0 -41.2 -28.8 -54.6
1991 -32.2 -42.0 -57.3 -62.1 -68.3 -62.3 -58.6 -67.5 -67.8 -58.9 -42.9 -30.4 -54.2
1992 -32.7 -41.2 -57.3 -65.8 -66.1 -63.4 -67.8 -63.3 -67.6 -58.2 -42.1 -33.1 -54.9
1993 -30.8 -43.5 -57.3 -67.0 -68.3 -68.4 -70.6 -70.7 -68.4 -55.9 -42.5 -33.0 -56.4
1994 -31.0 -33.2
1995 -33.5 -43.6 -57.8 -65.6 -69.1 -67.6 -56.7 -67.7 -68.7 -57.6 -42.8 -31.9 -55.2
1996
1997 -33.5 -44.8 -58.2 -64.4 -67.9 -64.1 -72.9 -71.5 -65.9 -58.0 -39.7 -30.4 -55.9
1998 -33.6 -43.9 -60.4 -68.5 -65.5 -67.2 -66.7 -67.1 -71.8 -60.3 -42.6 -31.5 -56.6
1999 -31.7 -45.2 -57.9 -70.4 -70.2 -64.6 -69.8 -67.8 -67.9 -58.7 -43.2 -35.1 -56.9
2000 -33.5 -45.2 -60.9 -65.1 -68.0 -60.0 -66.7 -66.8 -66.2 -61.3 -40.8 -30.6 -55.4
2001 -31.5 -43.3 -58.3 -63.1 -63.4 -66.9 -66.5 -69.1 -65.7 -56.4 -40.6 -30.5 -54.6
2002 -29.0 -45.7 -56.9 -61.9 -59.4 -65.9 -64.9 -71.6 -67.8 -55.7 -43.8 -34.0 -54.7
2003 -31.8
2004 -57.3 -62.5 -64.4 -65.8 -70.3 -62.4 -65.9 -56.7 -42.0 -29.5
2005 -31.4 -44.6 -56.4 -65.8 -67.3 -63.7 -63.4 -68.1 -63.2 -54.9 -42.1 -29.2 -54.2
2006 -32.7 -44.4 -58.2 -62.4 -66.2 -64.3 -66.9 -65.6 -64.2 -57.2 -43.2 -32.6 -54.8
2007 -32.6 -45.8 -56.2 -61.9 -59.2 -59.3 -64.7 -63.8 -63.9 -55.5 -42.5 -32.7 -53.2
2008 -33.3 -46.0 -54.2 -63.5 -66.7 -70.5 -65.2 -69.9 -67.8 -58.3 -40.4 -30.9 -55.6
2009 -31.1 -40.4 -57.5 -67.6 -62.9 -61.7 -59.5 -67.9 -64.2 -57.1 -40.8 -31.7 -53.5
2010 -30.2 -43.6 -55.7 -67.5 -64.7 -68.9 -69.4 -70.9 -65.3 -58.1 -43.9 -30.8 -55.8
2011 -30.6 -42.1 -57.9 -61.3 -67.8 -68.7 -61.7 -60.6 -63.9 -55.5 -40.7 -30.7 -53.5
2012 -31.6 -45.9 -58.4 -65.2 -67.6 -68.7 -69.8 -70.9 -70.0 -54.7 -40.9
4. Links
The AARI website with information about the Russian stations including Vostok.
The latest synoptic report from Vostok station.
This web page was written to look good in MS Explorer 5.0+ using character entity references from HTML 4.0. Apologies if it doesn't quite work for you — anyway the data should be OK. Comments should be addressed to Dr Gareth Marshall at GJMA@bas.ac.uk.
Return to the top of the page.
Return to the main Antarctic monthly mean surface temperature page.