Create Custom Reports and Graphics: Custom Report
Powdery Mildew Stress Points
2026 (Current) 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010
Daily Powdery Mildew Stress Activation Hours
Daily Activation Hours (70°F-85°F)

Powdery Mildew Stress Points - 2026

3/1/2026 - 9/30/2026

Daily Data
as of 4/15/26 4:00 PM PDT
Date Rockpile Upper (Cooley) Rockpile Lower (Cooley) Cloverdale-East (Ranch 83) Cloverdale-SE (Ranch 38) Geyserville-North (Hoffman) Geyserville (Ranch 3) Geyserville-East (Ranch 40) Geyserville-South (Nervo Station) Peterson (Ranch 09) Jimtown-North (Piccolo Ranch 15) HWY 128/Chalk Hill Rd (Landslide) Lower Dry Creek Valley Windsor-NW (Ranch 8) Windsor-East (Ranch 16) Mark West-North (Ranch 14) Windsor-SE (Silk Rd) Fulton-NW (Ranch 5) Bisordi (Fulton) Windsor-South (Laughlin Rd) Fulton-SW (Ranch 21) Fulton-SE (Barnes Rd) NW Santa Rosa (Piner Road) River Rd South (Denner Ranch) West Santa Rosa (LOV Vineyard) Guerneville (Laughlin Rd) Sanchietti Ranch Occidental Rd (Sebastopol) Lower Westside Rd (Ranch 12) Guerneville Rd West (Balletto) Korbel (Winery) Forestville (Shone Farms) Forestville-NE (Ranch 30) Graton-West (Dutton Ranch) Graton-South (Mill Station Rd) Occidental (Horseshoe Bend) Sexton Valley (Jacqueline's Blk) Sebastopol Hills (Burnside Rd) Lower Bennett Valley Seaview/Fort Ross (Hirsch) Upper Rincon Valley Kenwood (Wildwood) Sonoma Valley (Bedrock) Sonoma-West (Arnold) Sonoma Valley HS Sonoma East (Bundschu01) Sonoma-SE (Napoli) Schellville (Sasaki) Carneros (Ranch 71) Carneros Upper (Ranch 81) Carneros Lower (Ranch 81) Cartograph Wines Base Cartograph Wines Remote Rohnert Park-West (Stony Point) Penngrove (Asellus) Petaluma (Ranch 10) Crane Creek (Ranch 62) Guerneville Rd (Prokopakis) Knights Valley (Bavarian Lion) Upper Dry Creek Valley Pleasant Hill Green Valley Vineyard N Chalk Hill Rd (Ranch 63) Franz Valley (Stornetta) Lytton East (Hill 5) Lytton East (Shop Hill Bottom) Lytton West Hill (23PS) Lytton West Lower (Lew 6) Whitton Ranch (201e) SunnyView Vineyard (SCWC) Ricci Vineyards (Carneros) Green Valley (Sanchietti) Rice-Spivak Vineyard Bavarian Lion EFW Keefer Ranch (Green Valley) Rawah - Crazy Creek Rawah - Last Stop Foggy Bend (Ranch 41) Park Royal Newman Knights Valley Hop Kiln Big River Merino Harper's Rest (Windsor-West)
4/14/26 40 40 40 30 0 40 40 40 0 40 40 40 0 40 60 40 40 40 - 0 40 20 50 40 40 0 0 40 0 10 40 40 40 10 10 10 0 10 0 10 10 40 40 40 40 0 - 0 10 0 0 0 0 0 0 0 40 50 50 10 10 40 50 40 40 40 40 40 50 0 40 0 40 40 30 40 40 0 40 40 10 0 10
4/13/26 50 50 50 40 10 50 50 50 0 50 50 50 10 50 60 50 50 50 - 10 50 30 60 50 50 10 10 50 10 20 50 50 50 20 20 20 0 20 0 20 20 50 50 50 50 0 - 0 20 0 0 0 0 0 0 0 50 60 60 20 20 50 60 50 50 50 50 50 60 0 50 0 50 50 40 50 50 0 50 50 20 0 20
4/12/26 60 60 60 50 20 60 60 60 0 60 60 60 20 60 60 60 60 60 - 20 60 40 70 60 60 20 20 60 20 30 60 60 60 30 30 30 0 30 0 30 30 60 60 60 60 0 - 10 30 0 0 0 0 0 0 0 60 70 70 30 30 60 70 60 60 60 60 60 70 10 60 0 60 60 50 60 60 0 60 60 30 0 30
4/11/26 70 70 70 60 30 70 70 70 0 70 70 70 30 70 60 70 70 70 - 30 70 50 80 70 70 30 30 70 30 40 70 70 70 40 40 40 0 40 10 40 40 70 70 70 70 0 - 20 40 0 0 0 0 0 10 0 70 80 80 40 40 70 80 70 70 70 70 70 80 20 70 0 70 70 60 70 70 0 70 70 40 0 40
4/10/26 80 80 80 70 40 80 80 80 0 80 80 80 40 80 60 80 80 80 - 40 80 60 90 80 80 40 40 80 40 50 80 80 80 50 50 50 0 50 20 50 50 80 80 80 80 0 - 30 50 10 0 0 0 0 20 0 80 90 90 50 50 80 90 80 80 80 80 80 90 30 80 0 80 80 70 80 80 10 80 80 50 10 50
4/9/26 90 90 90 80 50 90 90 90 0 90 90 90 50 90 60 90 90 90 - 50 90 70 100 90 90 50 50 90 50 60 90 90 90 60 60 60 0 60 30 60 60 90 90 90 90 0 - 40 60 20 0 0 0 0 30 10 90 100 100 60 60 90 100 90 90 90 90 90 100 40 90 0 90 90 80 90 90 20 90 90 60 20 60
4/8/26 100 100 100 90 60 100 100 100 0 100 100 100 60 100 60 100 100 100 - 60 100 80 80 100 100 60 60 100 60 70 100 100 100 70 70 70 0 70 40 70 70 100 100 100 100 0 - 50 70 30 0 10 0 0 40 20 100 80 80 70 70 100 80 100 100 100 100 100 80 50 100 0 100 100 90 100 100 30 100 100 70 30 40
4/7/26 100 80 80 70 40 80 80 80 0 80 80 80 40 80 60 80 80 80 - 40 80 60 90 80 80 40 40 80 40 80 80 80 80 80 80 80 0 80 50 80 80 80 80 80 80 0 - 60 80 40 0 20 0 0 50 30 80 90 90 80 80 80 90 80 80 80 80 80 90 60 80 0 80 80 70 80 80 40 80 80 50 40 50
4/6/26 100 90 60 80 20 90 90 90 0 90 90 90 50 90 60 90 90 90 - 50 90 70 100 90 90 50 50 90 50 90 90 90 90 90 90 90 0 90 60 90 90 90 90 90 90 0 - 70 90 50 0 30 0 0 60 40 90 100 100 90 90 90 100 90 90 90 90 90 100 70 90 0 90 90 80 90 90 50 90 90 60 50 60
4/5/26 100 100 70 90 30 100 100 100 0 100 100 100 60 100 60 100 100 100 - 60 100 80 90 100 100 60 60 100 60 100 100 100 100 100 70 100 0 100 70 70 100 100 100 100 100 0 - 80 100 60 0 40 0 0 70 50 100 90 100 70 100 100 100 100 100 100 100 100 90 50 100 0 100 100 90 100 100 60 100 100 70 60 0
4/4/26 100 100 80 70 40 80 80 100 0 100 100 80 40 90 60 90 90 90 - 0 90 60 70 80 90 0 0 90 0 90 90 100 90 100 50 100 0 90 50 50 100 90 90 90 90 0 - 60 90 0 0 20 0 0 80 30 90 70 80 50 90 100 90 90 90 100 90 100 70 30 90 0 100 90 70 90 90 0 90 90 50 0 0
4/3/26 80 80 60 50 20 60 60 90 0 90 80 60 20 70 60 70 70 70 - 0 70 40 50 60 70 0 0 70 0 70 70 90 70 80 60 80 0 70 30 60 90 70 70 70 70 0 - 40 70 0 0 0 0 0 90 10 70 50 60 60 70 80 70 70 70 80 70 80 50 10 70 0 90 70 50 70 70 0 70 70 30 0 0
4/2/26 60 60 40 30 0 40 40 70 0 70 60 40 0 50 60 50 50 50 - 0 50 20 60 40 50 0 0 50 0 50 50 70 50 60 70 60 0 50 40 70 70 50 50 50 50 0 - 20 50 0 0 0 0 0 70 20 50 60 70 70 50 60 80 50 50 60 50 60 60 20 50 0 70 50 30 50 50 0 50 50 10 0 0
4/1/26 70 70 50 40 0 50 50 80 0 80 70 50 10 60 60 60 60 60 - 0 60 30 70 50 60 0 0 60 0 60 60 80 60 70 80 70 0 60 50 80 80 60 60 60 60 0 - 30 60 0 0 0 0 0 80 30 60 70 80 80 60 70 90 60 60 70 60 70 70 30 60 0 80 60 40 60 60 0 60 60 20 0 0
3/31/26 80 80 60 50 10 60 60 90 0 90 80 60 20 70 60 70 70 70 - 0 70 40 80 60 70 0 0 70 0 70 70 90 70 80 90 80 0 70 60 90 90 70 70 70 70 0 - 40 70 0 0 0 0 0 90 40 70 80 90 90 70 80 100 70 70 80 70 80 80 40 70 0 90 70 50 70 70 0 70 70 30 0 0
3/30/26 90 90 70 60 20 70 70 100 0 100 90 70 30 80 60 80 80 80 - 0 80 50 90 70 80 0 0 80 0 80 80 100 80 90 100 90 0 80 70 100 100 80 80 80 80 0 - 50 80 0 0 10 0 0 100 50 80 90 70 100 80 90 90 80 80 90 80 90 90 50 80 0 100 80 60 80 80 0 80 80 40 0 0
3/29/26 100 100 50 70 0 50 50 80 0 90 70 50 40 90 60 90 90 90 - 0 90 60 100 80 90 0 0 90 0 90 90 90 90 100 90 100 0 60 80 90 100 90 90 90 90 0 - 60 90 0 0 20 0 0 90 60 90 100 80 100 90 70 100 90 90 70 90 70 100 60 90 0 90 90 70 90 90 0 90 90 50 0 0
3/28/26 100 90 60 80 0 60 60 90 0 100 80 60 50 100 60 100 100 100 - 0 100 0 80 90 100 0 0 100 0 100 100 100 100 100 100 90 0 0 60 70 100 100 100 100 100 0 - 70 100 0 0 0 0 0 100 40 100 100 90 100 100 80 100 100 100 80 100 80 80 0 100 0 100 100 80 100 100 0 100 100 60 0 0
3/27/26 100 100 70 90 10 70 70 70 0 90 90 70 60 90 60 100 100 100 - 0 100 0 60 70 100 0 0 90 0 100 100 90 100 100 80 100 0 0 70 50 100 100 100 80 80 0 - 50 100 0 0 0 0 0 80 20 80 100 100 80 100 90 100 90 90 90 90 90 60 0 100 0 90 100 90 100 90 0 100 100 0 0 -
3/26/26 90 100 80 100 20 80 80 80 0 100 100 80 70 100 60 80 80 80 - 0 80 0 0 50 100 0 0 100 0 100 80 100 100 80 90 80 0 0 50 60 100 100 100 60 60 0 - 30 80 0 0 10 0 0 90 0 60 90 90 60 80 100 80 100 100 100 100 100 0 0 100 0 100 80 100 80 100 0 100 100 0 - -
3/25/26 70 90 60 100 30 60 60 60 0 100 100 60 80 90 60 60 60 60 - 0 60 0 0 60 80 0 0 100 0 100 60 80 80 60 100 60 0 0 60 0 100 100 90 70 70 0 - 40 90 0 0 20 0 0 100 10 0 70 70 0 60 100 60 100 100 90 100 100 0 0 80 0 90 60 100 60 100 0 100 100 - - -
3/24/26 80 100 40 80 10 40 40 40 0 100 90 40 60 70 60 0 0 0 - 0 0 0 0 0 60 0 0 90 0 80 0 60 60 0 80 0 0 0 70 0 100 100 100 80 80 0 - 50 100 0 0 30 0 0 80 20 0 50 80 0 0 90 40 100 80 70 100 80 0 0 60 0 70 0 100 0 90 0 100 90 - - -
3/23/26 60 80 20 60 20 50 50 50 0 80 70 50 70 50 0 0 0 0 - 0 0 0 0 0 0 0 0 70 0 60 0 70 0 0 90 0 0 0 80 0 90 100 90 60 60 0 - 30 100 0 0 40 0 0 60 0 0 30 60 0 0 70 20 80 60 50 80 60 0 0 0 0 50 0 90 0 70 0 90 70 - - -
3/22/26 0 60 0 0 0 30 30 30 0 60 50 30 50 30 0 0 0 0 - 0 0 0 0 0 0 0 0 50 0 40 0 50 0 0 100 0 0 0 90 0 70 100 70 40 40 0 - 40 90 0 0 50 0 0 40 10 0 10 40 0 0 50 0 60 40 30 60 40 0 0 0 0 30 0 70 0 50 0 70 50 - - -
3/21/26 0 0 10 0 10 10 10 10 0 40 30 10 30 10 0 0 0 0 - 0 0 0 0 0 0 0 0 30 0 20 0 30 0 0 90 0 0 0 100 0 50 80 50 20 50 0 - 50 100 0 0 60 0 0 50 20 0 20 20 0 0 30 0 40 20 10 40 20 0 0 0 0 10 0 50 0 30 0 50 30 - - -
3/20/26 0 0 20 0 20 20 20 20 0 20 40 20 40 20 0 0 0 0 - 0 0 0 0 0 0 0 0 40 0 30 0 40 0 0 100 0 0 0 100 0 30 60 30 0 30 0 - 30 90 0 0 70 0 0 30 0 0 30 30 0 0 40 10 20 0 20 20 0 0 0 0 0 20 0 30 0 40 0 30 40 - - -
3/19/26 0 0 30 0 30 30 30 30 0 30 50 30 50 30 0 0 0 0 - 0 0 0 0 0 0 0 0 50 0 40 0 50 0 0 80 0 0 0 100 0 40 70 40 10 40 0 - 40 70 0 0 80 0 0 40 10 0 40 40 0 0 50 20 30 10 30 30 10 0 0 0 0 30 0 40 0 50 0 40 50 - - -
3/18/26 0 0 40 0 40 40 40 40 0 40 60 40 60 40 0 0 0 0 - 0 0 0 0 0 0 0 0 60 0 50 0 60 0 0 60 0 0 0 80 0 50 80 50 20 50 0 - 50 50 0 0 60 0 0 50 20 0 50 50 0 0 60 30 40 20 40 40 20 0 0 0 0 40 0 50 0 60 0 50 60 - - -
3/17/26 0 0 50 0 50 50 50 50 0 50 70 50 70 50 0 0 0 0 - 0 0 0 0 0 0 0 0 70 0 60 0 70 0 0 0 0 0 0 60 0 60 90 60 30 60 0 - 60 60 0 0 0 0 0 60 30 0 60 60 0 0 70 40 50 30 50 50 30 0 0 0 0 50 0 60 0 70 0 60 70 - - -
3/16/26 0 0 60 0 60 60 60 60 0 60 80 60 80 60 0 0 0 0 - 0 0 0 0 0 0 0 0 80 0 70 0 80 0 0 0 0 0 0 0 0 70 100 70 40 0 0 - 0 0 0 0 0 0 0 70 40 0 70 70 0 0 80 50 60 40 60 60 40 0 0 0 0 60 0 70 0 80 0 70 80 - - -
3/15/26 0 0 70 0 70 70 70 70 0 70 90 70 90 70 0 0 0 0 - 0 0 0 0 0 0 0 0 90 0 80 0 90 0 0 0 0 0 0 0 0 80 80 80 20 0 0 - 0 0 0 0 0 0 0 80 50 0 80 80 0 0 90 60 70 50 70 70 50 0 0 0 0 70 0 80 0 90 0 80 90 - - -
3/14/26 0 0 80 0 80 80 80 80 0 80 100 80 100 80 0 0 0 0 - 0 0 0 0 0 0 0 0 100 0 60 0 100 0 0 0 0 0 0 0 0 60 60 60 0 0 0 - 0 0 0 0 0 0 0 60 30 0 60 60 0 0 100 0 80 60 80 80 60 0 0 0 0 80 0 90 0 100 0 60 100 - - -
3/13/26 0 0 60 0 60 60 60 60 0 60 100 60 100 60 0 0 0 0 - 0 0 0 0 0 0 0 0 100 0 0 0 100 0 0 0 0 0 0 0 0 0 0 40 10 0 0 - 0 0 0 0 0 0 0 40 10 0 0 0 0 0 100 0 60 0 60 60 0 0 0 0 0 60 0 70 0 100 0 0 100 - - -
3/12/26 0 0 0 0 0 0 0 0 0 0 90 0 100 0 0 0 0 0 - 0 0 0 0 0 0 0 0 90 0 0 0 100 0 0 0 0 0 0 0 0 0 0 50 20 0 0 - 0 0 0 0 0 0 0 50 20 0 0 0 0 0 90 0 0 0 0 0 0 0 0 0 0 0 0 50 0 90 0 0 100 - - -
3/11/26 0 0 0 0 0 0 0 0 0 0 70 0 90 0 0 0 0 0 - 0 0 0 0 0 0 0 0 70 0 0 0 90 0 0 0 0 0 0 0 0 0 0 30 30 0 0 - 0 0 0 0 0 0 0 30 30 0 0 0 0 0 70 0 0 0 0 0 0 0 0 0 0 0 0 30 0 70 0 0 90 - - -
3/10/26 0 0 0 0 0 0 0 0 0 0 50 0 70 0 0 0 0 0 - 0 0 0 0 0 0 0 0 50 0 0 0 70 0 0 0 0 0 0 0 0 0 0 40 40 0 0 - 0 0 0 0 0 0 0 40 40 0 0 0 0 0 50 0 0 0 0 0 0 0 0 0 0 0 0 40 0 50 0 0 70 - - -
3/9/26 0 0 0 0 0 0 0 0 0 0 60 0 80 0 0 0 0 0 - 0 0 0 0 0 0 0 0 60 0 0 0 80 0 0 0 0 0 0 0 0 0 0 50 50 0 0 - 0 0 0 0 0 0 0 50 50 0 0 0 0 0 60 0 0 0 0 0 0 0 0 0 0 0 0 50 0 60 0 0 80 - - -
3/8/26 0 0 0 0 0 0 0 0 0 0 0 0 60 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 60 0 0 0 0 0 0 0 0 0 0 60 60 0 0 - 0 0 0 0 0 0 0 60 60 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 60 0 0 0 0 60 - - -
3/7/26 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - - -
3/6/26 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - - -
3/5/26 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - - -
3/4/26 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - 0 - - -
3/3/26 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - 0 - - -
3/2/26 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - 0 - - -
3/1/26 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - 0 - - -