Now that I have the DHT-11 module working, I am trying to integrate this with the RTC module,. Initial attempts at this failed. So taking a step back, I have got just the RTC module working the the LCD screen.
Instructions are here: http://computers.tutsplus.com/tutorials/using-an-arduino-as-an-lcd-clock–cms-21696
Note you need to run 2 sketches here, the first sets the time, you then run the 2nd sketch to display the time / date on the module.
The next step here is to integrate the DHT11 module in to the project. However the time /date is on 2 lines, so it may be better to get a 4 line display and do it that way, as it will look neater, in the mean time I at least have a calender / clock to demonstrate at future jams.