2 October 1998 through 8 October 1998 UTC
 
Temperatures:
Avg Temp...-63.5 (C) / -82.3 (F)
Max Temp...-59.0 (C) / -74.2 (F) on day 2 
Min Temp...-66.8 (C) / -88.2 (F) on day 4 
 
Sky Cover:
Avg Sky Cover (8ths)... 2 
Days clear............. 4 
Days partly cloudy..... 3 
Days cloudy............ 0 
 
Sunshine:
Sunset on 21 March, Sunrise on 23 September
Avg hours/day......... 22.9
Percent of possible... 95.5
 
Station Pressure (millibars):
Avg pressure........ 675.6 mbs
Highest pressure.... 681.5 mbs on day 2 
Lowest pressure..... 669.9 mbs on day 8 
 
Physio-Altitude in feet and meters:
Average Physio-Alt = 10795 ft / 3290 m
Highest Physio-Alt = 11012 ft / 3356 m on day 8 
Lowest Physio-Alt  = 10572 ft / 3222 m on day 2 
 
Visibility:
0 days with visibility of 1/4 mile or less.
 
Wind:
Avg wind speed............ 8.6 mph or 7.5 kts
Max gust.................. 17 mph or 15 kts on day 2 
Max gust direction........ From grid East
Vectored wind direction... 103 degrees
Vectored wind speed....... 7.2 kts
Prevailing direction...... Grid East
 
Balloon Flight Data:
Number of Soundings for the period.... 7 
Avg hgt of Soundings.................. 134.7 mbs, or 12958 meters
Highest Sounding...................... 97.7 mbs, or 14639 meters
                                       on day 3/00Z flight.
 
 0 Soundings were missed.
 7 Soundings were terminated due to balloon burst.
 
**RECORDS**
 
Day 7 - The minimum temperature of -66.4(C)/-87.5(F) broke 
        the previous record of -64.3(C)/-83.7(F) set in 1994.
 
Day 8 - The minimum temperature of -66.7(C)/-88.1(F) tied 
        the previous record for this day set in 1977.