Extreme TMIN events during winter in the United States
and their frequency under major teleconnection patterns
COOP Southwest main       TMIN tables Station maps and lists
Extreme low TMIN events
Days on which the daily TMIN was in the lowest 1/15th (bottom 6.7%) of all the 1948-1997 NDJFM TMIN observations

Relative occurrences during extreme positive and negative phases of
NAM  (Northern Hemisphere annular mode)
PNA  (Pacific-North America pattern)
CTI  (Cold Tongue Index {measure of ENSO})

Help and more for
COOP Southwest station TMIN

TMIN is recorded
   Daily minimum temperature
Help for TMIN

Maps of
   Observations of TMIN
   Mean daily TMIN
   Standard deviation of TMIN
   Extreme TMIN thresholds

TMIN under 2 index extremes
   Pick one extreme:
   
High NAMLow NAM
High PNALow PNA
High CTILow CTI
Extreme high TMIN events
Days on which the daily TMIN was in the highest 1/15th (top 6.7%) of all the 1948-1997 NDJFM TMIN observations

Relative occurrences during extreme positive and negative phases of
NAM  (Northern Hemisphere annular mode)
PNA  (Pacific-North America pattern)
CTI  (Cold Tongue Index {measure of ENSO})