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Weather & Climate
Morrow County, Oregon, United States
Overview
Available climate summaries for Morrow County. Origins and reference periods are unverified; stored values may include AI estimates. Treat these as estimates until independently verified.
Key Metrics
Annual Avg
10.9°C
Summer Avg
20.8°C
Winter Avg
1.8°C
Record High
40.6°C
Record Low
-19.3°C
Annual Precipitation
381.4 mm
Avg Humidity
61%
Summer Humidity
48%
Winter Humidity
76%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 19.1° | 1.5° | -18.2° | 42.8 | 78% | 42 | 60.1 |
| Feb | 19.4° | 2.8° | -13.2° | 33.3 | 72% | 65 | 57.2 |
| Mar | 26° | 6.2° | -8.4° | 39.7 | 66% | 110 | 50.1 |
| Apr | 31.3° | 9.2° | -4.6° | 37.5 | 61% | 154 | 52.1 |
| May | 35.9° | 14.2° | -0.8° | 42.5 | 58% | 194 | 47.1 |
| Jun | 39.6° | 17.8° | 3.2° | 31.2 | 54% | 214 | 42 |
| Jul | 40.5° | 22.7° | 7.8° | 5.9 | 46% | 240 | 38.3 |
| Aug | 40.6° | 21.9° | 7.2° | 9.9 | 45% | 201 | 40.8 |
| Sep | 38.9° | 17.3° | -0.3° | 14.1 | 50% | 144 | 45.6 |
| Oct | 31.3° | 10.7° | -8.6° | 31.9 | 60% | 93 | 52.2 |
| Nov | 21.9° | 5° | -11.3° | 39 | 69% | 49 | 60.6 |
| Dec | 17.8° | 1.1° | -19.3° | 53.6 | 77% | 34 | 66.5 |
Data sources
Estimates and unverified origins
Oyster List climate data - Climate origins are unverified. Available methods include historical APIs and AI estimates; stored rows do not identify the original dataset, reference period, or model for each value. Treat these summaries as estimates until independently verified. Record updated 2026-03-22.
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