Gresham Climate by Month
Gresham, Oregon, United States
Warm summers and cool winters, with rain spread through the year.
The climate in Gresham is one of warm summers and cool winters, with rain spread through the year. August is the warmest month, with highs around 83°F (28°C); December is the coolest at 46°F (8°C), and nights dip to 35°F (2°C). About 61 in (1554 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 83°F(28°C)
- Average high, August
- Coldest nights
- 35°F(2°C)
- Average low, December
- Rain per year
- 61 in(1554 mm)
- No clear rainy season
- Humidity
- 69%
- Sunniest: July
Best and worst months in Gresham
Best for weatherJune, July and September are the best time for weather in Gresham: highs near 77°F (25°C) and about 1.9 in (48 mm) of rain a month.
Least pleasantDecember is the least pleasant month: it's the coldest, with highs of only 46°F (8°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in September.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Gresham weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 47°F(8°C) | 36°F(2°C) | 8.4 in(213 mm) | 79% | 1.1 |
| FebFebruary | 51°F(11°C) | 36°F(2°C) | 6.3 in(159 mm) | 72% | 2.1 |
| MarMarch | 55°F(13°C) | 38°F(4°C) | 6.9 in(175 mm) | 73% | 2.9 |
| AprApril | 61°F(16°C) | 41°F(5°C) | 5.2 in(132 mm) | 72% | 4.1 |
| MayMay | 68°F(20°C) | 46°F(8°C) | 3.8 in(96 mm) | 63% | 5.2 |
| JunJuneBest | 73°F(23°C) | 50°F(10°C) | 2.6 in(67 mm) | 64% | 5.7 |
| JulJulyBest | 81°F(27°C) | 55°F(13°C) | 0.7 in(18 mm) | 56% | 6.4 |
| AugAugust | 83°F(28°C) | 54°F(12°C) | 1.1 in(27 mm) | 55% | 5.6 |
| SepSeptemberBest | 77°F(25°C) | 50°F(10°C) | 2.3 in(59 mm) | 60% | 4.2 |
| OctOctober | 64°F(18°C) | 44°F(7°C) | 5.9 in(151 mm) | 70% | 2.3 |
| NovNovember | 53°F(12°C) | 38°F(4°C) | 8.6 in(219 mm) | 77% | 1.3 |
| DecDecember | 46°F(8°C) | 35°F(2°C) | 9.4 in(238 mm) | 81% | 0.9 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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