SOUTH POLE STATION ANTARCTICA.   MAY 2001 CLIMATE SUMMARY.

Temperature:
Average Temp............ -58.3 C/ -72.9 F
Departure from normal... -0.1 C/ -0.2 F
Maximum Temp............ -40.3 C/ -40.5 F on day 26 
Mimimum Temp............ -71.7 C/ -97.1 F on day 20 

Sky Cover:
Average cloud cover (8ths)... 02
Days clear................... 20
Days partly cloudy........... 07
Days cloudy.................. 04

Wind:
Average wind speed.......... 12.9 mph or 11.2 knots
Prevailing wind direction... Grid Northeast or 030 degrees
Maximum wind speed.......... 44 mph or 38 knots on day 25
Maximum wind direction...... Grid North 
Average vectored wind....... 046 degrees at 8.5 knots

Station Pressure:
Average pressure........ 681.6 mbs or 20.128 in. Hg
Departure from normal... +1.5 mbs or +0.044 in. Hg
Highest pressure........ 698.7 mbs or 20.633 in. Hg on day 11
Lowest pressure......... 668.7 mbs or 19.747 in. Hg on day 02

Sunshine:
Sunset on 22 September 2001
Average hours per day.... 0.0
Percent of possible...... 00%

Snowfall..... Trace; average net change at snow stakes +0.946 inches.
Visibility... 9 days with a visibility of 1/4 mile or less.

Balloon flight data:
Number of soundings for the month... 30 
Average height of sounding.......... 121.6 mbs. or 15809 meters above msl
Highest sounding.................... 8.7 mbs.or 29238 meters above msl
                                     on the day 14/00Z sounding

Remarks:
01 sounding was missed.
08 soundings were terminated above 50 mbs.
04 soundings were terminated between 50 and 100 mbs.
18 soundings were terminated below 100 mbs.

Records:
Day 25 - The daily average wind speed of 25.1 knots / 28.9 mph broke the previous daily
         record of 21.4 knots / 24.6 mph set in 1994.

       - The daily peak wind speed of 38 knots / 44 mph broke the previous daily record
         of 36 knots / 41 mph set in 2000.

PREPARED BY: Nathan Tift and Meghan Prentiss