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 _____________________________________________________________________ NORTHWEST Ada 4/23 5/4 5/14 9/24 10/3 10/13 135 153 177 Agassize Ref 4/21 5/4 5/15 9/19 9/28 10/11 127 148 171 Argyle 4/23 5/9 5/18 9/23 10/2 10/9 126 145 170 Crookston 4/23 5/7 5/15 9/23 10/2 10/13 131 150 174 Detroit Lks 5/2 5/8 5/19 9/18 9/26 10/6 120 145 163 Fosston 4/26 5/7 5/17 9/21 9/28 10/13 127 148 171 Hallock 4/28 5/10 5/21 9/23 10/2 10/10 126 144 165 Itasca SP 5/3 5/14 5/27 9/20 9/26 10/11 113 137 164 Mahnomen 4/17 5/7 5/17 9/21 9/28 10/11 126 145 178 Red Lake Fls 4/20 5/7 5/16 9/23 10/1 10/10 128 147 175 Roseau 5/3 5/14 5/25 9/18 9/27 10/6 113 137 159 Warroad 4/30 5/8 5/18 9/23 9/30 10/12 128 144 166 NORTH-CENTRAL Baudette 4/27 5/9 5/21 9/23 10/1 10/13 125 148 164 Bemidji 5/4 5/9 5/22 9/22 9/26 10/14 123 139 163 Big Falls 5/3 5/13 5/31 9/16 9/25 10/5 108 137 157 Cass Lake 5/4 5/16 5/29 9/17 9/25 10/5 108 133 156 Gr Rapids 4/27 5/9 5/21 9/20 9/28 10/10 119 144 166 Gull Lake 4/18 5/2 5/10 9/29 10/10 10/24 143 164 189 Intl Falls 4/29 5/10 5/25 9/17 9/25 10/7 112 139 161 Leech Lk 4/24 5/7 5/18 9/24 10/3 10/17 127 149 174 Park Rapids 4/30 5/7 5/17 9/21 9/29 10/7 125 147 162 Red Lk Indn 4/26 5/9 5/21 9/25 10/5 10/21 129 146 174 Thorhult 5/6 5/16 5/30 9/14 9/24 10/5 103 130 151 Walker AGC 4/18 5/2 5/14 9/18 9/28 10/5 139 160 188 Winni Dam 4/26 5/7 5/18 9/25 10/4 10/23 133 150 181 NORTHEAST Babbitt 4/28 5/9 5/21 9/23 10/5 10/20 124 147 173 Cook 5/4 5/21 6/4 9/10 9/23 10/2 97 124 150 Duluth Airp 4/22 5/8 5/17 9/23 10/5 10/18 125 154 175 Duluth Harb 4/8 4/18 5/1 10/18 11/2 11/8 172 195 217 Ely-Winton 4/27 5/7 5/19 9/24 10/7 10/22 131 155 178 Gr Marais 4/19 5/1 5/16 10/1 10/19 11/1 137 168 194 Hibbing 4/28 5/13 5/29 9/14 9/24 10/6 108 136 161 Two Harbors 4/16 4/29 5/13 10/2 10/23 11/2 142 176 199 Virginia 5/1 5/13 5/29 9/15 9/27 10/13 112 140 166 WEST-CENTRAL Alexandria 4/13 4/23 5/7 10/1 10/12 10/25 148 170 195 Artichoke Lk 4/14 4/24 5/7 10/1 10/10 10/22 150 167 190 Benson 4/13 4/26 5/7 9/30 10/10 10/21 146 166 189 Campbell 4/17 4/28 5/12 9/24 10/3 10/12 138 156 179 Canby 4/14 4/28 5/7 10/1 10/10 10/23 148 166 189 Fergus Fls 4/14 4/27 5/7 9/28 10/8 10/21 146 166 189 Glenwood 4/17 4/29 5/9 9/26 10/5 10/20 145 158 184 Madison 4/14 4/28 5/6 9/28 10/9 10/20 147 168 191 Milan 4/14 5/2 5/9 9/24 10/4 10/15 145 160 184 Montevideo 4/13 4/27 5/6 9/30 10/7 10/20 148 167 191 Morris 4/14 4/28 5/7 9/29 10/6 10/19 144 162 186 Ottertail 4/16 4/28 5/8 9/29 10/9 10/25 144 161 193 Rothsay 4/15 5/2 5/12 9/27 10/7 10/18 141 162 187 Wheaton 4/14 4/25 5/8 10/1 10/10 10/25 146 167 194 CENTRAL 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 Collegeville 4/10 4/22 5/2 10/5 10/18 10/29 157 177 201 Gaylord 4/9 4/17 4/29 10/4 10/16 10/24 158 181 198 Hutchinson 4/9 4/24 5/1 10/1 10/13 10/25 152 175 200 Jordan 4/13 4/28 5/10 9/28 10/6 10/20 144 164 190 Litchfield 4/11 4/22 5/5 9/30 10/10 10/23 153 171 195 Little Fls 4/19 5/3 5/12 9/25 10/5 10/18 138 158 182 Long Prairie 4/20 5/1 5/15 9/22 10/2 10/13 129 155 178 Melrose 4/13 4/28 5/11 9/25 10/5 10/17 139 162 188 New London 4/13 4/24 5/5 10/3 10/13 10/24 153 171 191 St Cloud 4/18 5/1 5/12 9/24 10/5 10/17 138 157 181 Santiago 4/18 5/2 5/16 9/22 10/1 10/13 127 152 175 Stewart 4/9 4/22 5/6 10/1 10/10 10/22 147 172 194 Wadena 4/21 5/2 5/10 9/24 10/4 10/19 138 156 179 Willmar 4/11 4/25 5/2 10/3 10/15 10/25 154 173 195 EAST-CENTRAL Aitkin 4/23 5/6 5/18 9/24 9/30 10/16 132 150 174 Brainerd 4/21 5/3 5/11 9/21 10/1 10/15 136 152 178 Cambridge 4/14 4/30 5/9 9/24 10/6 10/19 139 159 186 Cloquet 4/30 5/16 6/2 9/19 9/28 10/13 108 135 165 Forest Lake 4/11 4/22 5/3 10/5 10/17 10/28 156 175 199 Hinckley 4/21 5/6 5/19 9/22 9/28 10/12 125 148 175 Maple Plain 4/13 4/25 5/6 10/1 10/12 10/25 153 169 194 Milaca 4/18 5/1 5/12 9/25 10/3 10/19 138 155 184 MSP-Airport 4/9 4/16 4/29 10/7 10/20 11/3 161 187 209 Moose Lake 5/1 5/12 5/28 9/20 9/27 10/10 111 138 166 Mora 4/21 5/3 5/16 9/21 10/2 10/15 126 151 173 Pine River D 4/25 5/6 5/19 9/24 10/1 10/16 127 149 173 Sandy Lake D 4/23 5/4 5/15 9/24 10/2 10/20 129 153 178 Stillwater 4/9 4/16 5/1 10/7 10/18 11/2 163 185 208 SOUTHWEST Lamberton 4/10 4/28 5/5 9/28 10/7 10/17 147 164 186 Luverne 4/16 4/30 5/7 9/26 10/5 10/17 142 159 179 Marshall 4/9 4/19 5/4 10/4 10/14 10/25 156 176 199 Pipestone 4/22 5/3 5/12 9/24 10/3 10/10 137 153 172 Redwood Fls 4/9 4/18 5/1 10/2 10/9 10/25 155 175 196 Tracy 4/14 4/26 5/3 10/3 10/9 10/24 152 167 191 Windom 4/14 4/27 5/7 9/30 10/7 10/22 144 164 192 SOUTH-CENTRAL Albert Lea 4/9 4/18 5/2 10/5 10/18 10/28 158 182 201 Fairmont 4/6 4/13 4/28 10/8 10/22 10/31 163 189 209 Faribault 4/14 4/27 5/8 9/29 10/12 10/25 146 169 193 New Ulm 4/9 4/24 5/2 9/29 10/10 10/24 148 173 194 Owatonna 4/13 4/28 5/6 10/2 10/10 10/23 149 168 191 St James 4/9 4/21 4/30 10/3 10/11 10/23 157 174 198 St Peter 4/9 4/20 5/2 10/2 10/13 10/25 155 174 200 Springfield 4/10 4/23 5/3 9/27 10/9 10/20 149 168 189 Waseca 4/11 4/23 5/4 9/30 10/6 10/24 151 169 193 Winnebago 4/7 4/20 5/2 10/6 10/17 10/26 158 179 204 SOUTHEAST Austin 4/12 4/28 5/7 9/27 10/5 10/20 145 164 190 Caledonia 4/13 4/23 5/5 10/1 10/11 10/28 153 175 195 Farmington 4/9 4/19 5/2 10/4 10/14 10/31 155 178 204 Grand Meadow 4/10 4/22 5/6 10/1 10/10 10/27 151 174 197 Preston 4/20 5/5 5/16 9/23 10/3 10/14 131 153 178 Rochester 4/11 4/21 5/6 10/1 10/12 10/27 151 175 197 Rosemount 4/12 4/28 5/7 9/29 10/10 10/24 148 164 194 Theilman 4/15 5/3 5/16 9/26 10/4 10/19 137 160 186 Winona 4/7 4/14 4/26 10/7 10/20 11/2 166 188 209 Zumbrota 4/16 4/29 5/11 9/26 10/4 10/18 140 159 188 ____________________________________________________________________ All sites with at least 60 percent available data for the period 1948-2005 (58 years).