Longview, Washington Climate by Month
Longview, Washington, United States
Warm summers and cool winters, with rain spread through the year.
Longview has warm summers and cool winters, with rain spread through the year. August is the warmest month, with highs around 81°F (27°C); December is the coolest at 47°F (8°C), and nights dip to 36°F (2°C). About 51 in (1294 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 81°F(27°C)
- Average high, August
- Coldest nights
- 36°F(2°C)
- Average low, January
- Rain per year
- 51 in(1294 mm)
- No clear rainy season
- Humidity
- 74%
- Sunniest: July
Best and worst months in Longview
Best for weatherJune, July and September are the best time for weather in Longview: highs near 76°F (24°C) and about 1.6 in (41 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; December is the coldest, with highs of only 47°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)
Longview weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 48°F(9°C) | 36°F(2°C) | 7.3 in(186 mm) | 89% | 1.1 |
| FebFebruary | 52°F(11°C) | 36°F(2°C) | 5.0 in(128 mm) | 82% | 2.1 |
| MarMarch | 56°F(14°C) | 38°F(4°C) | 5.2 in(131 mm) | 72% | 2.8 |
| AprApril | 62°F(16°C) | 41°F(5°C) | 4.1 in(104 mm) | 70% | 4.0 |
| MayMay | 69°F(20°C) | 46°F(8°C) | 2.8 in(72 mm) | 68% | 5.1 |
| JunJuneBest | 73°F(23°C) | 51°F(11°C) | 2.1 in(54 mm) | 63% | 5.4 |
| JulJulyBest | 80°F(27°C) | 55°F(13°C) | 0.7 in(18 mm) | 62% | 6.0 |
| AugAugust | 81°F(27°C) | 53°F(12°C) | 1.0 in(26 mm) | 62% | 5.2 |
| SepSeptemberBest | 74°F(24°C) | 50°F(10°C) | 2.0 in(52 mm) | 68% | 3.9 |
| OctOctober | 64°F(18°C) | 43°F(6°C) | 4.8 in(121 mm) | 79% | 2.1 |
| NovNovember | 53°F(11°C) | 39°F(4°C) | 8.0 in(202 mm) | 87% | 1.2 |
| DecDecember | 47°F(8°C) | 36°F(2°C) | 7.9 in(200 mm) | 91% | 0.8 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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