Records set in May 2013 (Period of Record 1950-2013) Spring Top 10 (March-May) - 7th Lowest Maximum Temperature of 68.8° (tied). - 10th Lowest Minimum Temperature of 46.7° (tied). - 8th Lowest Mean Temperature of 57.4° (tied). - 3rd Most Heating Degree Days with 954 (tied). - 6th Most Total Precipitation of 15.75". - 10th Most Number of Days with Precipitation with 31 (tied). - 2nd Most Number of Monthly Days with Precipitation with 16 in May (tied). Record is 18 set in May 1993. Monthly Top 10 - Lowest Daily Maximum Temperature of 46° on the 2nd. Old record was 48° set on the 3rd/1978. - 2nd Lowest Daily Minimum Temperature of 34° on the 3rd. Record is 33° set on the 3rd/1954. - 3rd Lowest Daily Minimum Temperature of 36° on the 2nd (tied). - 8th Lowest Daily Minimum Temperature of 39° on the 4th (tied). - Lowest Daily Mean Temperature of 41° on the 2nd. Old record was 44° set on the 3rd/1954. - 9th Lowest Daily Mean Temperature of 48° on the 3rd (tied). - 2nd Most Heating Degree Days with 110. Record is 154 set in 1954. - Most Daily Heating Degree Days with 24 on the 2nd. Old record was 21 set on the 3rd/1954. - 9th Most Daily Heating Degree Days with 17 on the 3rd (tied). - 2nd Most Number of Days with Precipitation with 16 (tied). Record is 18 set in 1993. Daily Record Low Maximum Temperature - 46° on the 2nd Record Low Minimum Temperature - 36° on the 2nd - 44° on the 6th (tied) Record Low Mean Temperature - 41° on the 2nd - 49° on the 4th - 53° on the 5th (tied)