Median Frost Dates for the Twin Cities Area

MEDIAN DATES OF CRITICAL LOW TEMPERATURE THRESHOLDS IN MINNESOTA
(Period of record 1948-2005)

DISTRICT     MEDIAN DATE OF      MEDIAN DATE OF     DAYS BETWEEN
  AND        LAST MIN. TEMP      FIRST MIN. TEMP    MEDIAN DATES
STATION      IN SPRING           IN FALL
             24 F  28  F  32 F   32 F  28 F  24 F   32 F  28 F  24 F
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Buffalo      4/11  4/22   5/2    10/2  10/12 10/29  150   172   201
Chaska       4/11  4/22   5/2    10/2  10/10 10/27  152   173   200
Cambridge    4/14  4/30   5/9    9/24  10/6  10/19  139   159   186
Farmington   4/9   4/19   5/2    10/4  10/14 10/31  155   178   204
Forest Lake  4/11  4/22   5/3    10/5  10/17 10/28  156   175   199
Jordan       4/13  4/28   5/10   9/28  10/6  10/20  144   164   190
Maple Plain  4/13  4/25   5/6    10/1  10/12 10/25  153   169   194
MSP-Airport  4/9   4/16   4/29   10/7  10/20 11/3   161   187   209
Rosemount    4/12  4/28   5/7    9/29  10/10 10/24  148   164   194
Stillwater   4/9   4/16   5/1    10/7  10/18 11/2   163   185   208