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1 July, 2002

June 2002 Monthly Climate Summary, South Pole Station

Antarctica

Temperature:

Average temp............ -62.0C / -79.6F

Departure from normal... -3.6C / -6.5F

Maximum temp............ -46.8 C / -52.2F on day 7

Minimum temp............ -71.5 C / -96.7F on day 30

Wind:

Average wind speed.......... 12.5 mph or 10.9 knots

Prevailing wind direction... Grid East or 070 degrees

Maximum wind speed.......... 33 mph or 29 knots on day 08

Maximum wind direction...... Grid North

Average vectored wind....... 064 degrees at 8.6 knots

Station Pressure:

Average pressure........ 678.5 mb or 20.036 in. Hg

Departure from normal... -2.8 mb or -0.083 in. Hg

Highest pressure........ 694.2 mb or 20.500 in. Hg on day 16

Lowest pressure......... 660.9 mb or 19.516 in. Hg on day 25

Physio-altitude:

Average physio-alt = 10,685 ft/3257 m

Highest physio-alt = 11,357 ft/3462 m on day 25

Lowest physio-alt = 10,097 ft/3078 m on day 16

Sky Cover:

Average cloud cover (8ths)... 03

Days clear................... 15

Days partly cloudy........... 15

Days cloudy..................

Sunshine:

Sunrise on 23 September 2002

Average hours per day... 0.0

Percent of possible..... 0

Visibility... 4 days with a visibility of 1/4 mile or less.

Snowfall..... TRACE; average net change at snow stakes +0.421 inches.

Balloon flight data:

Number of soundings for the month... 30

Average height of sounding.......... 87.4 mbs or 17361 meters above msl Highest sounding.................... 7.1 mbs or 29480 meters above msl on the day 16/00Z sounding

Remarks:

00 soundings were missed.

10 soundings were terminated above 50 mbs.

02 soundings were terminated between 50 and 100 mbs.

18 soundings were terminated below 100 mbs.

**RECORDS**

No records were tied or broken during the month.

PREPARED BY: Dar Gibson and Roger Perry


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