Aberdeen, South Dakota Climate by Month
Aberdeen, South Dakota, United States
Warm summers and bitterly cold winters, with rain spread through the year.
Warm summers and bitterly cold winters, with rain spread through the year: that's Aberdeen's climate in short. July is the warmest month, with highs around 85°F (29°C); January is the coolest at 22°F (-5°C), and nights dip to 2°F (-17°C). It gets 22 in (558 mm) of rain a year, spread across the months.
- Warmest month
- 85°F(29°C)
- Average high, July
- Coldest nights
- 2°F(-17°C)
- Average low, January
- Rain per year
- 22 in(558 mm)
- No clear rainy season
- Humidity
- 70%
- Sunniest: July
Best and worst months in Aberdeen
Best for weatherSeptember is the best time for weather in Aberdeen: highs near 74°F (23°C) and about 2.1 in (54 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; January is the coldest, with highs of only 22°F (-5°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)
Aberdeen weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 22°F(-5°C) | 2°F(-17°C) | 0.4 in(11 mm) | 76% | 1.4 |
| FebFebruary | 28°F(-2°C) | 7°F(-14°C) | 0.5 in(12 mm) | 89% | 2.3 |
| MarMarch | 41°F(5°C) | 20°F(-6°C) | 1.2 in(30 mm) | 69% | 3.7 |
| AprApril | 57°F(14°C) | 32°F(0°C) | 1.9 in(48 mm) | 60% | 4.8 |
| MayMay | 70°F(21°C) | 45°F(7°C) | 2.8 in(72 mm) | 62% | 5.4 |
| JunJune | 79°F(26°C) | 55°F(13°C) | 4.5 in(115 mm) | 66% | 5.9 |
| JulJuly | 85°F(29°C) | 60°F(16°C) | 2.9 in(73 mm) | 66% | 6.4 |
| AugAugust | 83°F(28°C) | 57°F(14°C) | 2.8 in(71 mm) | 68% | 5.5 |
| SepSeptemberBest | 74°F(23°C) | 48°F(9°C) | 2.1 in(54 mm) | 65% | 4.2 |
| OctOctober | 59°F(15°C) | 34°F(1°C) | 1.7 in(43 mm) | 65% | 2.6 |
| NovNovember | 41°F(5°C) | 21°F(-6°C) | 0.6 in(16 mm) | 68% | 1.6 |
| DecDecember | 27°F(-3°C) | 8°F(-13°C) | 0.5 in(13 mm) | 89% | 1.2 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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