Station location: 75°35'S, 26°30'W, Brunt Ice Shelf, Coats Land, East Antarctica.
WMO identification: 89022
The monthly values are derived as the mean of all available 6-hourly synoptic observations. Data in red (November 2003) may change, as although 90% of data are available at present, more may become available at a future date. Other data in red are derived from CLIMAT messages and will be updated once the synoptic data become available.
Go straight to the data.
(i) Annual, seasonal and monthly temperature statistics for Halley
These data are updated monthly. With regard to summer (DJF) the year refers to the December.
| Annual/Season/Month | Mean (°C) | σ (°C) | Min. (°C) | q0.25 (°C) | q0.75 (°C) | Max. (°C) | Period | n |
|---|---|---|---|---|---|---|---|---|
| Calendar year | −18.7 | 1.0 | −21.2 | −19.2 | −18.0 | −16.3 | 1957-2011 | 55 |
| Autumn | −21.0 | 2.1 | −25.1 | −22.2 | −19.8 | −16.3 | 1957-2012 | 56 |
| Winter | −28.0 | 2.1 | −32.8 | −29.2 | −26.5 | −23.8 | 1957-2012 | 56 |
| Spring | −19.2 | 1.6 | −23.0 | −20.2 | −18.2 | −15.2 | 1957-2012 | 56 |
| Summer | −6.6 | 0.8 | −8.3 | −7.2 | −5.9 | −4.7 | 1957-2011 | 55 |
| January | −4.6 | 1.0 | −6.6 | −5.4 | −3.9 | −2.5 | 1957-2012 | 56 |
| February | −10.0 | 1.7 | −15.2 | −11.1 | −8.8 | −6.5 | 1957-2012 | 56 |
| March | −16.5 | 2.5 | −21.5 | −18.4 | −14.8 | −10.3 | 1957-2012 | 56 |
| April | −21.7 | 3.2 | −29.2 | −23.8 | −19.5 | −14.5 | 1957-2012 | 56 |
| May | −24.9 | 3.4 | −32.3 | −27.3 | −22.0 | −16.4 | 1957-2012 | 56 |
| June | −26.9 | 3.4 | −32.5 | −30.3 | −24.6 | −19.6 | 1957-2012 | 56 |
| July | −28.8 | 3.1 | −35.4 | −31.1 | −27.1 | −22.7 | 1957-2012 | 56 |
| August | −28.4 | 3.7 | −36.7 | −30.7 | −25.3 | −19.9 | 1957-2012 | 56 |
| September | −26.4 | 2.9 | −33.3 | −28.2 | −25.0 | −16.7 | 1957-2012 | 56 |
| October | −19.7 | 2.6 | −24.9 | −21.7 | −18.0 | −14.1 | 1957-2012 | 56 |
| November | −11.6 | 1.5 | −16.0 | −12.7 | −10.4 | −8.5 | 1957-2012 | 56 |
| December | −5.3 | 1.1 | −8.2 | −6.1 | −4.5 | −3.5 | 1957-2011 | 55
|
Halley monthly temperature statistics: this plot shows the mean, quartiles and range for each month.
(ii) Annual, seasonal and monthly trends in the Halley 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.
| Annual/Season/Month | Annual trend (°C a−1) | Significance (%) | Period | |
|---|---|---|---|---|
| Calendar year | −0.0110 ± 0.0208 | - | 1957-2011 | 55 |
| Autumn | −0.0419 ± 0.0327 | 5 | 1957-2012 | 56 |
| Winter | −0.0078 ± 0.0393 | - | 1957-2012 | 56 |
| Spring | +0.0029 ± 0.0300 | - | 1957-2012 | 56 |
| Summer | −0.0007 ± 0.0168 | - | 1957-2011 | 55 |
| January | +0.0047 ± 0.0142 | - | 1957-2012 | 56 |
| February | −0.0095 ± 0.0270 | - | 1957-2012 | 56 |
| March | −0.0184 ± 0.0396 | - | 1957-2012 | 56 |
| April | −0.0763 ± 0.0569 | 5 | 1957-2012 | 56 |
| May | −0.0311 ± 0.0565 | - | 1957-2012 | 56 |
| June | −0.0190 ± 0.0732 | - | 1957-2012 | 56 |
| July | −0.0065 ± 0.0670 | - | 1957-2012 | 56 |
| August | +0.0019 ± 0.0490 | - | 1957-2012 | 56 |
| September | −0.0054 ± 0.0444 | - | 1957-2012 | 56 |
| October | −0.0042 ± 0.0412 | - | 1957-2012 | 56 |
| November | +0.0182 ± 0.0308 | - | 1957-2012 | 56 |
| December | +0.0037 ± 0.0180 | - | 1957-2011 | 55
|
Calendar year
Autumn (MAM)
Winter (JJA)
Spring (SON)
Summer (DJF)
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1957 -5.6 -9.4 -14.8 -19.4 -21.4 -23.4 -27.2 -32.1 -24.8 -21.0 -11.8 -5.4 -18.0
1958 -5.4 -8.4 -15.9 -24.7 -30.2 -24.6 -27.9 -28.6 -23.3 -18.5 -11.2 -8.2 -18.9
1959 -4.3 -9.1 -18.6 -20.6 -17.6 -30.2 -27.8 -27.7 -31.1 -19.5 -12.3 -4.8 -18.6
1960 -5.6 -12.3 -17.9 -18.6 -27.0 -30.6 -25.5 -24.7 -29.2 -19.0 -13.2 -5.9 -19.1
1961 -5.8 -11.4 -16.2 -23.2 -19.1 -32.5 -32.9 -31.7 -28.4 -14.1 -11.3 -5.7 -19.4
1962 -5.4 -12.1 -15.4 -19.6 -28.0 -27.0 -28.6 -31.8 -26.9 -24.4 -15.1 -6.7 -20.1
1963 -4.8 -11.2 -14.1 -22.2 -26.2 -25.6 -25.9 -19.9 -25.2 -21.9 -12.6 -5.8 -17.9
1964 -5.3 -9.9 -16.2 -25.0 -32.3 -22.6 -29.9 -33.4 -33.3 -22.9 -12.9 -6.1 -20.8
1965 -4.9 -10.2 -17.4 -22.6 -26.9 -26.8 -27.6 -30.1 -26.0 -20.4 -12.4 -6.1 -19.3
1966 -5.3 -9.4 -10.3 -16.7 -23.5 -25.1 -27.1 -29.2 -26.4 -20.3 -13.5 -5.2 -17.7
1967 -3.0 -8.2 -20.6 -21.5 -23.6 -30.5 -29.1 -26.9 -28.0 -20.2 -12.0 -4.6 -19.0
1968 -6.6 -10.3 -13.3 -23.7 -22.0 -21.2 -32.2 -29.4 -28.6 -18.4 -11.1 -6.3 -18.6
1969 -4.1 -8.1 -16.6 -14.5 -20.7 -20.9 -30.4 -30.0 -22.3 -14.1 -10.0 -4.1 -16.3
1970 -5.7 -10.5 -19.1 -21.6 -26.8 -30.0 -31.0 -34.9 -16.7 -18.0 -11.0 -3.5 -19.1
1971 -3.5 -9.3 -18.7 -17.8 -25.3 -31.7 -32.8 -25.4 -27.4 -18.6 -13.1 -4.5 -19.0
1972 -4.6 -8.4 -16.1 -20.6 -25.0 -28.8 -33.7 -29.5 -28.1 -23.2 -11.1 -5.1 -19.5
1973 -3.9 -10.4 -16.6 -19.3 -24.8 -31.6 -30.2 -36.6 -26.1 -17.2 -10.0 -6.5 -19.4
1974 -4.5 -12.2 -16.6 -21.9 -22.0 -29.8 -31.4 -21.9 -22.9 -21.0 -11.7 -4.7 -18.4
1975 -4.2 -10.3 -11.8 -21.1 -17.8 -24.1 -24.0 -30.1 -26.3 -14.7 -10.4 -4.3 -16.6
1976 -4.2 -8.6 -18.5 -20.1 -24.5 -25.7 -26.3 -23.8 -22.5 -18.1 -11.0 -4.3 -17.3
1977 -3.4 -9.3 -16.6 -15.8 -16.4 -21.6 -29.7 -26.3 -28.3 -19.4 -11.7 -6.8 -17.1
1978 -5.6 -8.7 -15.4 -15.6 -21.1 -24.5 -28.9 -25.2 -26.4 -17.4 -12.4 -5.3 -17.2
1979 -3.4 -10.2 -18.9 -17.3 -26.2 -23.8 -34.1 -29.4 -26.6 -20.0 -11.9 -4.5 -18.9
1980 -5.6 -9.3 -14.7 -20.2 -27.9 -24.6 -31.6 -27.3 -26.4 -22.1 -9.1 -5.7 -18.7
1981 -3.8 -8.7 -15.9 -17.2 -26.4 -25.8 -24.7 -25.0 -26.2 -18.6 -10.6 -4.9 -17.3
1982 -3.9 -7.9 -21.5 -18.8 -25.5 -26.5 -24.7 -28.6 -21.3 -17.2 -10.3 -4.4 -17.6
1983 -4.5 -8.6 -15.1 -24.6 -21.5 -27.6 -29.8 -24.8 -26.7 -20.5 -13.2 -6.6 -18.6
1984 -3.4 -10.7 -14.8 -21.7 -20.5 -31.4 -24.0 -24.6 -26.4 -22.2 -12.8 -4.7 -18.1
1985 -5.0 -12.1 -13.8 -23.2 -27.6 -27.9 -22.7 -23.8 -25.3 -21.3 -16.0 -6.0 -18.7
1986 -5.1 -6.8 -14.8 -22.3 -29.2 -30.3 -26.8 -24.6 -27.7 -24.4 -11.3 -5.6 -19.1
1987 -3.8 -9.1 -15.3 -19.0 -28.6 -25.8 -23.5 -29.4 -24.6 -23.0 -10.1 -4.2 -18.0
1988 -3.2 -10.1 -11.7 -19.1 -23.1 -26.2 -31.0 -28.6 -29.4 -20.0 -11.0 -4.5 -18.2
1989 -3.2 -8.6 -14.7 -21.0 -24.2 -22.7 -27.8 -32.8 -24.2 -19.5 -10.2 -4.8 -17.8
1990 -3.4 -11.1 -16.0 -22.4 -28.3 -22.7 -29.0 -25.8 -27.6 -16.4 -8.5 -4.0 -17.9
1991 -4.7 -9.0 -20.4 -24.4 -26.3 -22.0 -27.3 -27.3 -23.3 -20.8 -10.1 -3.9 -18.3
1992 -2.5 -9.7 -19.4 -24.2 -26.3 -26.4 -28.0 -36.7 -27.0 -17.2 -11.3 -4.2 -19.4
1993 -5.4 -12.7 -14.6 -21.4 -21.9 -29.2 -32.0 -28.0 -31.5 -18.5 -10.0 -5.2 -19.2
1994 -5.1 -9.2 -21.4 -25.6 -28.4 -26.1 -35.4 -32.4 -25.1 -22.4 -12.9 -7.0 -20.9
1995 -5.4 -10.5 -11.7 -25.3 -29.1 -19.6 -28.7 -28.9 -29.5 -18.5 -12.8 -4.3 -18.7
1996 -3.4 -6.5 -13.5 -25.7 -22.7 -30.5 -24.1 -23.1 -28.1 -17.6 -8.5 -3.7 -17.3
1997 -3.9 -15.2 -17.5 -28.2 -28.3 -31.0 -31.7 -32.3 -28.4 -22.3 -9.8 -5.5 -21.2
1998 -4.8 -10.4 -19.7 -23.7 -27.4 -28.6 -27.1 -27.1 -28.2 -22.0 -11.4 -4.6 -19.6
1999 -4.5 -9.7 -20.2 -20.7 -25.3 -29.7 -28.1 -25.8 -27.3 -18.0 -13.1 -7.3 -19.1
2000 -6.3 -11.4 -18.0 -23.5 -29.4 -27.4 -31.8 -35.0 -23.4 -24.9 -11.7 -6.4 -20.8
2001 -5.6 -11.6 -20.0 -26.1 -26.8 -24.9 -29.6 -26.8 -23.6 -18.5 -10.2 -4.1 -19.0
2002 -4.5 -10.8 -18.3 -23.1 -25.0 -25.9 -31.2 -21.9 -31.7 -17.6 -13.9 -6.3 -19.2
2003 -4.3 -6.7 -17.2 -23.9 -22.0 -32.0 -34.5 -26.3 -25.7 -20.4 -11.7 -4.6 -19.1
2004 -4.6 -9.9 -16.3 -25.7 -24.6 -29.0 -30.3 -31.9 -21.5 -19.0 -14.1 -5.5 -19.4
2005 -4.4 -11.1 -14.8 -19.8 -30.3 -30.8 -28.0 -24.0 -28.3 -20.1 -13.8 -4.2 -19.1
2006 -4.9 -12.4 -13.1 -22.9 -25.8 -28.4 -24.7 -29.6 -27.0 -21.9 -9.3 -5.7 -18.8
2007 -3.6 -10.6 -16.4 -29.2 -27.2 -30.3 -27.6 -30.0 -28.0 -20.3 -11.6 -5.7 -20.0
2008 -6.6 -11.8 -18.2 -19.4 -20.7 -30.3 -24.1 -25.0 -26.7 -23.6 -11.3 -7.3 -18.8
2009 -5.3 -12.0 -18.7 -22.4 -25.6 -25.0 -27.6 -31.3 -28.9 -16.6 -10.3 -5.4 -19.1
2010 -3.9 -10.3 -15.5 -19.7 -21.6 -26.0 -29.1 -27.6 -21.2 -16.3 -10.6 -4.9 -17.2
2011 -3.5 -7.6 -17.0 -21.3 -23.5 -30.4 -31.0 -29.9 -27.7 -21.4 -11.1 -6.7 -19.3
2012 -6.6 -8.9 -16.9 -27.4 -26.4 -21.5 -32.9 -32.8 -28.1 -16.1 -10.5
The British Antarctic Survey Halley web page.
The latest synoptic report from Halley 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@pcmail.nbs.ac.uk.
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