Hello! Welcome to Pueblo 

Attached you will find some information regarding Colorado irrigation practices and some tree recommendations. It always advised to water early or late in the day after the heat of the day has dispersed as most water will evaporate.  Prunus trees are a wonderful option that grow quickly and are great for yard additions. If you plant new trees you will need to make sure they are watered more frequently specifically in the first year and during the winter as most sprinkler systems won't give it the necessary water they need while the tree in in its first few years of growth. 

Some examples are flowering crab apple, plum, choke cherry ect. 

I hope this answers your questions and if you have any more questions please reach out.

Have a great day

https://extension.colostate.edu/topic-areas/yard-garden/native-trees-for-colorado-landscapes-7-421/

https://extension.colostate.edu/topic-areas/yard-garden/watering-established-lawns-7-199/

https://extension.colostate.edu/topic-areas/yard-garden/small-deciduous-trees-7-418/