The University of Arizona

Coming mid-September

2026 Arizona Wine Grape Harvest Report

A statewide accounting of production, water use, fruit movement, and pricing — built from what growers report.

The 2026 report expands on last year's work to capture irrigation water use and the reasons behind unharvested acreage and unsold fruit. It is supported by a specialty crop block grant focused on the water footprint of Arizona's wine grape industry.

Your data stays confidential. Individual operations are never identified. Everything is published in aggregate.

  • Report only fruit grown and harvested in your own vineyards
  • One form per vineyard site
  • Each variety gets its own row
  • You'll get a confirmation email when it's received
Harvest Report Form coming in Mid-September
  1. Jul–OctHarvest — keep your weights and buyer records
  2. Mid-Sep2026 Harvest Report Form opens
  3. Oct 15Submission deadline
  4. Jan 2027Results published and presented to the industry at the Arizona Wine Summit

Workshops & events

Conditions in the vineyard

Live readings from AZMet stations sited in Arizona's growing regions.

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Relative humidity
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Vapor pressure deficit
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Soil temp, 4 in
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Reference ET, 24 hr
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 Last 24 hours 

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Season accumulation

Calculating…

Data: Arizona Meteorological Network (AZMet), University of Arizona. Full station data →

Look up a date range

Accumulations and extremes for Elgin over any window in the record.

Growing degree days
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Rainfall
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Reference ET
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Warmest day
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Coolest night
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Days at or above 100°F
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Data: Arizona Meteorological Network (AZMet), University of Arizona. Full station data →

Climate Viticulture Newsletter — monthly climate and weather notes for Arizona grape growers from the Cooperative Extension climateGEM program.

Read past issues →

Program Contacts

Michael Pierce · Assistant Agent, Commercial Horticulture & Food Systems
Matt Halldorson · Area Associate Agent Vitculture, Yavapai County Extension Director