Climate Insights for Aberdeen

Niobrara County, Washington, United States

Hottest
August
20°C peak
Coldest
December
3°C low
Wettest
November
426mm rain
Best to Visit
July, August
Mild temps & low rain

Climate Overview

The climate in Aberdeen is temperate. The average annual temperature is 12°C and approximately 2175mm of precipitation falls per year. November is the wettest month, receiving around 426mm of rainfall. Aberdeen is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are December, January, March, when temperatures can drop to 3°C. Light snow can occur between December and December.

Temperature

10° 15° 20° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 9° Average: 7° Min: 6° Feb Max: 12° Average: 10° Min: 8° Mar Max: 12° Average: 9° Min: 8° Apr Max: 15° Average: 12° Min: 10° May Max: 16° Average: 13° Min: 11° Jun Max: 18° Average: 15° Min: 12° Jul Max: 18° Average: 16° Min: 14° Aug Max: 20° Average: 16° Min: 13° Sep Max: 18° Average: 15° Min: 13° Oct Max: 15° Average: 12° Min: 11° Nov Max: 13° Average: 11° Min: 10° Dec Max: 7° Average: 5° Min: 3°
Max
Average
Min

Aberdeen sees moderate temperature variation throughout the year, ranging from 3°C to 20°C. August is the warmest month, though highs remain moderate at 20°C with a mean of 16°C. December is the coolest month, with minimum temperatures around 3°C and an average of 5°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows. The sharpest temperature change occurs between November and December, with a 6°C shift in average temperatures.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm 350mm 400mm 450mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 310mm Snow: 0mm Feb Precipitation: 203mm Snow: 0mm Mar Precipitation: 343mm Snow: 0mm Apr Precipitation: 60mm Snow: 0mm May Precipitation: 30mm Snow: 0mm Jun Precipitation: 53mm Snow: 0mm Jul Precipitation: 29mm Snow: 0mm Aug Precipitation: 18mm Snow: 0mm Sep Precipitation: 72mm Snow: 0mm Oct Precipitation: 404mm Snow: 0mm Nov Precipitation: 426mm Snow: 0mm Dec Precipitation: 227mm Snow: 9mm
Precipitation
Snow

Aberdeen is a very wet location, receiving approximately 2175mm of precipitation annually, which averages out to around 181mm per month. The wettest month is November, averaging 426mm of rainfall. October and March also tend to see above-average precipitation. The driest month is August, with just 18mm. That's 407mm less than November, 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. Light snowfall can occur between December and December, totalling around 9cm annually. December is the snowiest month with approximately 9cm.

Wind

0km/h 5km/h 10km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 5km/h Feb Wind Speed: 5km/h Mar Wind Speed: 5km/h Apr Wind Speed: 4km/h May Wind Speed: 4km/h Jun Wind Speed: 4km/h Jul Wind Speed: 4km/h Aug Wind Speed: 4km/h Sep Wind Speed: 3km/h Oct Wind Speed: 5km/h Nov Wind Speed: 6km/h Dec Wind Speed: 4km/h
Wind Speed

Aberdeen is relatively calm, with an average annual wind speed of 4km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is November, averaging 6km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months.

Seasons

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

52 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 August at around 20°C, while the coldest stretch bottoms out in December near 3°C. Autumn is next, beginning on September 23, 2026 — 52 days from now.

Spring

Temperatures range from 8 to 16°C. Rainfall is heavy, totalling around 434mm across the season with a monthly average of 145mm. Winds are generally light, averaging 4km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 12 to 20°C. Rainfall is relatively light, with around 100mm over the season and a monthly average of 33mm. Winds are generally light, averaging 4km/h. Comfortable clothing with a light layer for cooler evenings is all you need.

Autumn

Temperatures range from 10 to 18°C. Rainfall is heavy, totalling around 902mm across the season with a monthly average of 301mm. Winds are generally light, averaging 5km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 3 to 12°C. Rainfall is heavy, totalling around 740mm across the season with a monthly average of 247mm. Expect around 9cm of snow accumulation during this period. Winds are generally light, averaging 5km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan
Feb 10°
Mar
Apr 12°
May 13°
Jun 15°
Jul 16°
Aug 16°
Sep 15°
Oct 12°
Nov 11°
Dec

The best time to visit Aberdeen is during July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 24mm per month. By contrast, December can be quite cold with temperatures dropping to 3°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

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
6 °C
9 °C
5 km/h
310 mm
0 cm
Feb
8 °C
12 °C
5 km/h
203 mm
0 cm
Mar
8 °C
12 °C
5 km/h
343 mm
0 cm
Apr
10 °C
15 °C
4 km/h
60 mm
0 cm
May
11 °C
16 °C
4 km/h
30 mm
0 cm
Jun
12 °C
18 °C
4 km/h
53 mm
0 cm
Jul
14 °C
18 °C
4 km/h
29 mm
0 cm
Aug Current
13 °C
20 °C
4 km/h
18 mm
0 cm
Sep
13 °C
18 °C
3 km/h
72 mm
0 cm
Oct
11 °C
15 °C
5 km/h
404 mm
0 cm
Nov
10 °C
13 °C
6 km/h
426 mm
0 cm
Dec
3 °C
7 °C
4 km/h
227 mm
9 cm
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