Nevermind, I figured it out:
PROGRAM FileArray
implicit none
integer :: i, j, lines
integer, dimension(6,75) :: a
!a(1,*) = year
!a(2,*) = month
!a(3,*) = day
!a(4,*) = hour
!a(5,*) = temp
!a(6,*) = dew point
100 FORMAT(I4, 5X, I2, 7X, I2, 7X, I4, 5X, I2, 7X, I2)...