Taking an environmentally sensitive approach to pest management
| Station | County | Weekly Temperature (°F) | Monthly Precipitation (in.)  | 
    Growing Degree Days‡  | 
  |||||||
| Avg. Max.  | 
    Avg. Min.  | 
    Extreme High | Extreme Low | Mean | Departure from long term avg. | May 1-31  | 
    Departure from long term avg. | Accumulated Since Apr. 1 | Departure from long term avg. | ||
| Corning | Atchison | 87 | 62 | 89 | 55 | 74 | +7 | 3.71 | -0.72 | 711 | +208 | 
| St. Joseph | Buchanan | 84 | 63 | 87 | 60 | 73 | +7 | 6.55 | +1.73 | 678 | +157 | 
| Brunswick | Carroll | 85 | 64 | 88 | 58 | 75 | +8 | 6.08 | +0.82 | 734 | +19 | 
| Albany | Gentry | 86 | 61 | 89 | 56 | 73 | +7 | 6.36 | +1.77 | 653 | +163 | 
| Auxvasse | Audrain | 86 | 63 | 88 | 57 | 75 | +8 | 4.52 | -0.49 | 760 | +212 | 
| Vandalia | Audrain | 86 | 64 | 89 | 57 | 75 | +9 | 4.86 | -0.15 | 743 | +229 | 
| Columbia-Bradford Research and Extension Center | Boone | 87 | 62 | 89 | 55 | 75 | +8 | 4.24 | -0.77 | 730 | +147 | 
| Columbia-Sanborn Field | Boone | 87 | 65 | 88 | 58 | 76 | +8 | 5.41 | +0.40 | 837 | +226 | 
| Williamsburg | Callaway | 87 | 64 | 89 | 58 | 75 | +9 | 3.82 | -1.12 | 787 | +258 | 
| Novelty | Knox | 84 | 62 | 89 | 55 | 73 | +7 | 6.29 | +1.34 | 655 | +144 | 
| Linneus | Linn | 85 | 61 | 89 | 54 | 73 | +7 | 6.93 | +1.91 | 656 | +161 | 
| Monroe City | Monroe | 86 | 64 | 88 | 59 | 75 | +9 | 5.07 | +0.24 | 710 | +172 | 
| Versailles | Morgan | 87 | 63 | 89 | 54 | 75 | +7 | 5.40 | +0.13 | 822 | +187 | 
| Green Ridge | Pettis | 86 | 64 | 87 | 57 | 75 | +8 | 6.78 | +1.98 | 762 | +200 | 
| Lamar | Barton | 86 | 65 | 88 | 63 | 75 | +6 | 6.58 | +0.75 | 836 | +183 | 
| Cook Station | Crawford | 87 | 58 | 89 | 51 | 72 | +4 | 4.89 | -0.02 | 767 | +115 | 
| Round Spring | Shannon | 88 | 60 | 89 | 53 | 73 | +6 | 4.96 | -0.25 | 782 | +178 | 
| Mountain Grove | Wright | 85 | 59 | 88 | 51 | 72 | +5 | 6.23 | +1.34 | 763 | +197 | 
| Delta | Cape Girardeau | 87 | 66 | 89 | 65 | 76 | +5 | 4.13 | -0.98 | 945 | +177 | 
| Cardwell | Dunklin | 89 | 68 | 91 | 64 | 77 | +4 | 3.12 | -1.79 | 1110 | +220 | 
| Clarkton | Dunklin | 88 | 66 | 90 | 64 | 77 | +5 | 5.03 | +0.65 | 1042 | +182 | 
| Glennonville | Dunklin | 87 | 67 | 88 | 65 | 76 | +4 | 5.08 | +0.68 | 1058 | +196 | 
| Charleston | Mississippi | 87 | 67 | 89 | 65 | 76 | +5 | 4.90 | +0.14 | 1035 | +273 | 
| Portageville-Delta Center | Pemiscot | 88 | 69 | 90 | 67 | 78 | +6 | 7.03 | +2.43 | 1126 | +254 | 
| Portageville-Lee Farm | Pemiscot | * | * | * | * | * | * | * | * | * | * | 
| Steele | Pemiscot | 89 | 69 | 90 | 66 | 78 | +5 | 7.83 | +2.73 | 1166 | +285 | 
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REVISED: October 5, 2015