Climate Insights for Aberdeen

Aleutians East Borough, South Dakota, United States

Hottest
July
30°C peak
Coldest
January
-13°C low
Wettest
August
99mm rain
Best to Visit
June, July, August
Mild temps & low rain

Climate Overview

The climate in Aberdeen is cool. The average annual temperature is 8°C and approximately 625mm of precipitation falls per year. August is the wettest month, receiving around 99mm of rainfall. Aberdeen is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, June, August. The coldest months are January, February, December, when temperatures can drop to -13°C. Snowfall occurs from January to December, with around 109cm accumulating over the season.

Temperature

-20° -10° 10° 20° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: -4° Average: -9° Min: -13° Feb Max: -2° Average: -8° Min: -13° Mar Max: 6° Average: 0° Min: -5° Apr Max: 13° Average: 6° Min: 1° May Max: 22° Average: 15° Min: 9° Jun Max: 28° Average: 22° Min: 16° Jul Max: 30° Average: 23° Min: 18° Aug Max: 28° Average: 21° Min: 16° Sep Max: 25° Average: 18° Min: 12° Oct Max: 15° Average: 9° Min: 4° Nov Max: 7° Average: 1° Min: -3° Dec Max: -1° Average: -6° Min: -10°
Max
Average
Min

Aberdeen has a wide annual temperature range, spanning 43°C from the coldest to warmest months. The warmest month is July, when average highs reach 30°C and the mean temperature sits around 23°C. The coldest month is January, when overnight lows fall to -13°C and the daily average is -9°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 9°C shift in average temperatures.

Precipitation

0mm 25mm 50mm 75mm 100mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 13mm Snow: 12mm Feb Precipitation: 16mm Snow: 14mm Mar Precipitation: 30mm Snow: 23mm Apr Precipitation: 64mm Snow: 15mm May Precipitation: 78mm Snow: 0mm Jun Precipitation: 78mm Snow: 0mm Jul Precipitation: 76mm Snow: 0mm Aug Precipitation: 99mm Snow: 0mm Sep Precipitation: 64mm Snow: 0mm Oct Precipitation: 48mm Snow: 7mm Nov Precipitation: 24mm Snow: 10mm Dec Precipitation: 34mm Snow: 26mm
Precipitation
Snow

Aberdeen is a relatively dry area, receiving approximately 625mm of precipitation annually, which averages out to around 52mm per month. The wettest month is August, averaging 99mm of rainfall. June and May also tend to see above-average precipitation. The driest month is January, with just 13mm. That's 85mm less than August, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Snowfall is a regular feature from January to December, with around 109cm accumulating over the season. December typically sees the most snow at around 26cm.

Wind

0km/h 5km/h 10km/h 15km/h 20km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 15km/h Feb Wind Speed: 15km/h Mar Wind Speed: 16km/h Apr Wind Speed: 16km/h May Wind Speed: 15km/h Jun Wind Speed: 14km/h Jul Wind Speed: 13km/h Aug Wind Speed: 13km/h Sep Wind Speed: 15km/h Oct Wind Speed: 16km/h Nov Wind Speed: 14km/h Dec Wind Speed: 15km/h
Wind Speed

Aberdeen is mildly breezy, with an average annual wind speed of 15km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 16km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 13km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

7 days until Autumn

It is currently summer in Aberdeen, which began on June 21, 2026. Aberdeen is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 30°C, while the coldest stretch bottoms out in January near -13°C. Autumn is next, beginning on September 23, 2026 (7 days from now).

Spring

Temperatures range from -5 to 22°C. Precipitation is moderate at around 172mm for the season, averaging 57mm per month. Winds are moderate at around 16km/h. Light layers work well as temperatures warm through the season. It is a great time to be outdoors.

Summer

Temperatures range from 16 to 30°C. Precipitation is moderate at around 253mm for the season, averaging 84mm per month. Winds are generally light, averaging 13km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.

Autumn

Temperatures range from -3 to 25°C. Rainfall is relatively light, with around 136mm over the season and a monthly average of 45mm. Expect around 18cm of snow accumulation during this period. Winds are generally light, averaging 15km/h. Layered clothing works best as temperatures gradually cool. Enjoy the crisp air and changing scenery.

Winter

Temperatures range from -13 to -1°C. Rainfall is relatively light, with around 63mm over the season and a monthly average of 21mm. Expect around 52cm of snow accumulation during this period. Winds are moderate at around 15km/h. Heavy layering and insulated outerwear are essential. Exposed skin should be minimised outdoors.

Best Time to Visit

Jan -9°
Feb -8°
Mar
Apr
May 15°
Jun 22°
Jul 23°
Aug 21°
Sep 18°
Oct
Nov
Dec -6°

The best time to visit Aberdeen is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 79mm per month. By contrast, January can be quite cold with temperatures dropping to -13°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

Monthly Climate Data

The table below shows monthly climate averages for Aberdeen based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
-13 °C
-4 °C
15 km/h
13 mm
12 cm
Feb
-13 °C
-2 °C
15 km/h
16 mm
14 cm
Mar
-5 °C
6 °C
16 km/h
30 mm
23 cm
Apr
1 °C
13 °C
16 km/h
64 mm
15 cm
May
9 °C
22 °C
15 km/h
78 mm
0 cm
Jun
16 °C
28 °C
14 km/h
78 mm
0 cm
Jul
18 °C
30 °C
13 km/h
76 mm
0 cm
Aug
16 °C
28 °C
13 km/h
99 mm
0 cm
Sep Current
12 °C
25 °C
15 km/h
64 mm
0 cm
Oct
4 °C
15 °C
16 km/h
48 mm
7 cm
Nov
-3 °C
7 °C
14 km/h
24 mm
10 cm
Dec
-10 °C
-1 °C
15 km/h
34 mm
26 cm
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Metric (°C, km/h)