***Corrected Winter 2011***

LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION

YEAR	1977
MONTH	   FEBRUARY		.... ALL TEMPERATURES MINUS C....

DAY	TEMPERATURE C		PCPN	AVG WIND	FASTEST		SUN	SKY	STN	WX
	MAX	MIN	AVG		SPEED		MILE		SHINE	COVER	PRESS
					DIR	MPH	SPD	DIR	HRS
1	33.3	37.8	36.7	T	060	 7.5	10	070	M	2	688.7
2	34.4	37.8	36.4	T	080	 9.6	12	100	M	2	689.3
3	30.6	38.6	36.3	T	080	 8.9	17	050	M	3	688.6
4	33.3	38.9	35.8	T	070	12.4	15	090	M	4	687.0
5	33.7	37.8	35.0	T	030	16.7	22	030	M	6	689.5
6	33.9	37.5	35.1	T	020	13.1	23	030	M	5	690.2
7	33.3	40.9	39.3	T	080	 8.1	18	020	M	1	690.2
8	39.4	43.6	42.0	T	080	 6.6	10	070	M	2	689.8
9	41.7	45.0	43.4	0	120	 7.3	 9	150	M	1	689.8
10	41.4	43.9	42.2	T	100	10.2	13	130	M	1	685.0
11	40.6	45.0	43.6	T	080	 9.0	13	100	M	2	680.1
12	42.5	45.6	43.8	T	020	11.5	16	040	M	6	679.3
13	39.4	44.4	42.2	T	020	14.4	19	010	M	6	682.0
14	38.9	44.2	42.5	T	080	12.4	19	020	M	1	683.6
15	42.2	46.7	45.6	T	090	 7.7	13	090	M	2	680.4
16	40.3	47.2	43.2	T	360	 8.6	13	010	M	7	681.8
17	40.6	46.7	42.3	T	010	 9.2	14	360	M	6	683.7
18	38.6	45.0	41.7	T	070	11.2	14	020	M	7	684.9
19	35.6	43.9	37.7	T	030	19.5	25	030	M	6	683.0
20	35.6	38.9	36.5	T	030	13.3	29	020	M	7	681.6
21	35.6	41.4	38.8	T	040	15.1	25	030	M	5	682.6
22	37.2	48.3	46.0	0	080	 9.5	28	040	M	0	680.5
23	46.1	52.5	50.5	T	070	 4.1	13	070	M	3	682.3
24	49.7	52.8	51.5	0	100	 8.5	11	090	M	2	680.1
25	47.0	52.2	49.2	T	080	11.6	18	080	M	3	675.2
26	46.7	52.0	50.1	T	060	10.3	18	080	M	5	676.1
27	45.9	52.8	49.3	T	070	12.5	23	030	M	5	679.6
28	45.6	55.6	53.4	T	070	 4.2	20	030	M	2	684.2

AVG	39.4	44.9	42.5	T	080	10.5	29	020	M	4	683.9
							20th
AVG MONTHLY	-42.5		PCPN	TRACE			NR DAYS CLEAR	12
HIGHEST	-30.6	ON 3rd		SUNSHINE	M		PARTLY CLOUDY 	13
LOWEST	-55.6	ON 28th						CLOUDY		03
				HIGH PRESSURE	692.2	ON 7th
				LOW PRESSURE	674.6	ON 25th,26th

NET CHANGE IN SNOWSTAKE FIELD:	M

SNOWSTAKE DATA NOT AVAILABLE.
Insufficient Data available for Sunshine Hours Computation.

The following data was changed from the old LCD:
All Average Temps recalculated for 24hrs instead of Max+Min/2.
Individual Data changed to reflect extremes from LCD and NCDC Data.
All Average Sky Cover changed to reflect data from 00Z through 00Z daily.
All Sky Cover changed to Octas.

Peak wind speed, peak wind direction, precipitation, sunshine amount, and present wx reported in NZST.
Insufficient data to convert these values to UTC.

All temperature, wind, and pressure data taken from NCDC data. LCD data originally reported in NZST.

Changed Extremes:
	From	To
Max T
Min T	-55.0	-55.6

Changed Monthly Averages:  (All temps are Minus C)
	From	To			From	To				From	To
Max T	40.0	39.4	Avg Wnd Spd	10.4	10.5	Avg Press
Min T	44.2	44.9	Max Press	692.1	692.2	Fastest Wnd MPH
Avg T	42.1	42.5	Min Press	674.8	674.6

Changes to Daily Data:
Max Temp	Day	5	10	12	13	16	18	19	24	25	27
		From:	35.0	41.7	42.8	42.8	43.3	41.1	37.2	50.0	49.4	48.3
		To:	33.7	41.4	42.5	39.4	40.3	38.6	35.6	49.7	47.0	45.9

Min Temp	Day	3	6	7	8	11	14	15	21	22	23	26	28
		From:	37.2	35.6	39.4	42.2	43.9	42.8	46.1	38.9	46.7	50.6	50.0	55.0
		To:	38.6	37.5	40.9	43.6	45.0	44.2	46.7	41.4	48.3	52.5	52.0	55.6

Avg Temp	Day	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
		From:	35.6	36.1	33.9	36.1	36.4	34.7	36.4	40.8	43.3	42.8	42.2	44.2	43.6	40.8	44.2	45.3
		To:	36.7	36.4	36.3	35.8	35.0	35.1	39.3	42.0	43.4	42.2	43.6	43.8	42.2	42.5	45.6	43.2
		Day	17	18	19	20	21	22	23	24	25	26	27	28
		From:	43.6	43.1	40.6	37.2	37.2	41.9	48.3	51.4	50.8	48.3	50.6	50.3
		To:	42.3	41.7	37.7	36.5	38.8	46.0	50.5	51.5	49.2	50.1	49.3	53.4

Number of NCDC observations per day: 8