test = Nov. 21 - Nov. 30 ZIP Code 97035 - Lake Oswego, Oregon Hardiness Zones

ZIP Code 97035 Hardiness Zones and Climate Data

ZIP Code 97035 - Lake Oswego Oregon is in 2023 USDA Hardiness Zones 8b (15°F to 20°F) and 9a (20°F to 25°F)

Additional Gardening Related Climate Data for ZIP Code 97035 - Lake Oswego, Oregon

2023 Hardiness Zone:Zone 8b: 15°F to 20°F
Zone 9a: 20°F to 25°F
2012 Hardiness Zone:Zone 8b: 15°F to 20°F
1990 Hardiness Zone:Zone 8b: 15F to 20F
Average First Frost Date:Nov. 21 - Nov. 30
Average Last Frost Date:Mar. 11 - Mar. 20
Koppen-Geiger Climate Zone:Csb - Warm-Summer Mediterranean Climate
Ecoregion:3c - Prairie Terraces
Current Drought Status:Exceptional Drought
Heat Zone Days: Rare Over 86°F

Annual Climate Data for ZIP Code 97035 - Lake Oswego, OR

JanFebMarAprMayJunJulAugSepOctNovDecAnnual
Avg Min Temp (°F)34363841465155555144393544
Avg Max Temp (°F)46515661687380817564524663
Avg Precip (In.)6.0954.282.952.41.67.67.881.743.196.296.6441.8

Source Data:

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