What I found shocked me! The data show that soil temperatures reached 52 degrees F. on Feb. 24 in 2000, Feb. 25 in 2001, Mar. 14 in 2002 and Mar. 4 in 2003. My timing advice has been wrong ! To get good crabgrass control in Atlanta you should apply the pre-emergent on March 1, not March 15.Otherwise the seed will sprout beforehandâ¦.and most pre-emergent chemicals do not control crabgrass seedlings.hat I found shocked me! The data show that soil temperatures reached 52 degrees F. on Feb. 24 in 2000, Feb. 25 in 2001, Mar. 14 in 2002 and Mar. 4 in 2003. My timing advice has been wrong ! To get good crabgrass control in Atlanta you should apply the pre-emergent on March 1, not March 15.
  0.4 of an inch Answer   There are 2.54 centimeters in 1 inch, so 1 centimeter is 0.394 inches.
How big is 1 millimeter in inches? It can be done by this simple calculation: 1 inch = 2.54 cm or 25.400 mm To convert 1 mm into inches divide 1 by 25.4 which will give you the answer i.e. 0.039370078740157 â¦ 48 inches Therefore, 1 millimeter = 0.03937007874015748 inches.lgebraic Steps / Dimensional Analysis Formula 1 mm | * | 1 cm 10 mm | * | 1 in 2.54 cm | = | 0.03937007874 in Direct Conversion Formula 1 mm | * | 1 in 25.4 mm | = | 0.03937007874 in.