Prepare a Tucson yard for the monsoon in May and early June, before the season officially starts on June 15. The short list: thin top-heavy mesquite and palo verde, have palms pruned without over-cutting them, fix drip leaks and runoff, clear debris and drainage paths, plan the monsoon pre-emergent, and set up rainwater capture. The National Weather Service notes that Arizona thunderstorm gusts almost always top 40 mph and can exceed 100 mph (NWS Tucson), so the trees come first.
Use the checklist below before the storms, and the after-storm list once they arrive. If the season has just ended, the second list doubles as a fall cleanup plan.
Why the monsoon is hard on Tucson yards
The NWS defines the monsoon as June 15 through September 30. It arrives right after the hottest, driest stretch of the year: May averages 0.20 inches of rain and June's average high is 101.2 °F. Then July, the wettest month, averages 2.21 inches, and about 52% of the year's 10.61 inches falls from July through September (NOAA 1991–2020 normals). Storms bring strong outflow winds, dust that can cut visibility to near zero in seconds, flash floods and lightning that can strike up to 10 miles away.
A simple monsoon timeline
- April to May: walk the yard, list the trees, palms and irrigation problems, and ask for quotes.
- Late May to mid-June: get desert trees thinned and irrigation fixed while the yard is still dry.
- June 15: the NWS monsoon season begins. Plan the follow-up pre-emergent for when the first rains arrive.
- Summer: palms are pruned after their flower stalks emerge; storm cleanup as needed.
- After September 30: final debris and weed cleanup, then check the drip system before fall planting.
Before the storms: the checklist
1. Thin top-heavy desert trees
UA Extension recommends pruning mesquite and palo verde in summer, when they heal quickly, and thinning top-heavy trees before the monsoon (UA Extension). Never remove more than a quarter of the canopy at once, and don't seal the cuts. Details in when to prune mesquite & palo verde.
2. Prune palms the right way
UA's palm guide says routine annual pruning is often scheduled in summer after the flower stalks emerge, so fronds and stalks come off together (UA Extension AZ2021). Dead fronds hanging in a skirt are heavy and are worth removing. Avoid cutting living fronds above the "nine and three o'clock" line: the guide warns that palms that are consistently over-pruned develop weakness and often break in the wind. Don't skin the trunk. Palm trimming at height is specialized work; ask how the company does it safely.
3. Fix leaks, runoff and broken emitters
Tucson has no watering days, but the Water Waste Ordinance bans runoff, ponding, broken heads or emitters and controllable leaks, with a warning and then a minimum $250 fine (City of Tucson). Walk each zone, fix what sprays the sidewalk, and move tree emitters out toward the canopy edge so roots grow wide and anchor the tree.
4. Clear drainage paths
Check that wash channels, scuppers, gate gaps and wall weep holes are clear of gravel and debris. UA's caliche guide notes that caliche layers restrict drainage and can leave water perched on top (UA Extension AZ1281), so low spots near walls and foundations deserve a look before the first heavy rain.
5. Plan the monsoon pre-emergent
UA's turf note recommends a follow-up pre-emergent when the summer rains begin, for spurge, crabgrass and other summer weeds (UA turf weed control). The timing and products are covered in our pre-emergent guide. For pre-emergent treatments, or any company that advertises weed control, ask for its Arizona Department of Agriculture Pest Management Division license and verify it.
6. Deal with buffelgrass
Buffelgrass is an invasive grass that greens up with summer rain. Pima County says stands burn at over 1,400 °F, almost three times hotter than native-vegetation fires (Pima County). Pima County has rules for buffelgrass in unincorporated areas; check pima.gov.
7. Set up rainwater capture
Basins, berms and cisterns put monsoon rain to work. Tucson Water's Rainwater Harvesting Rebate pays up to $1,900 for storage after a required Watershed Management Group workshop, and funding is limited (City of Tucson). Full details are in Tucson watering rules & rebates.
8. Secure loose items
Outflow winds move patio furniture, umbrellas, trash bins and stacked pots. Store or tie down what you can before storm season.
After a storm
- Stay safe first. Wait until thunder has passed before working outside; lightning can strike up to 10 miles away.
- Look up before you clean up. Check for hanging or cracked limbs and split trunks. Leave anything near power lines or overhead to a tree company.
- Turn the controller down. After a soaking rain, skip the next cycles so the yard doesn't run off into the street.
- Rake debris off gravel. Leaves, pods and twigs are easier to clear before they settle into rock beds.
- Pull weeds while they are small. Summer rain brings up summer weeds such as spurge in gravel and lawns.
- Check emitters and lines. Storms and fallen limbs knock emitters loose and crack tubing.
Typical costs
| Service | Typical range |
|---|---|
| Tree trimming | about $112 small, $444 medium, $904 large tree |
| Palm trimming, per tree | $329–$988 (national; varies with height) |
| Yard cleanup | $59–$420 depending on size |
| Irrigation / drip repair | $100–$299 (average about $186) |
Typical ranges from published cost guides (2026) — estimates, not quotes. See all landscaping & lawn care prices in Tucson.
Getting it done before June 15
Asking for quotes in spring leaves time to compare companies and schedule the work before the storms. Tree maintenance does not need a Registrar of Contractors license under Arizona's gardener exemption (A.R.S. §32-1121); ask any tree company about insurance and experience, and whether a crew member holds ISA certification (verify at isa-arbor.com). Tucson Lawn Care Pros connects Tucson-area homeowners with independent local landscaping, lawn care, irrigation and tree companies for free, no-obligation quotes. The company you choose quotes, contracts and does the work directly with you. See tree trimming, palm tree trimming and yard cleanup in Tucson, or request a free quote.
This is general information, not legal advice.