Climate Insights for Carlton

Walla Walla County, Oregon, United States

Hottest
Agosto
29°C peak
Coldest
Dicembre
2°C low
Wettest
Dicembre
241mm rain
Best to Visit
Giugno, Luglio, Agosto
Mild temps & low rain

Climate Overview

The climate in Carlton is temperate. The average annual temperature is 12°C and approximately 1344mm of precipitation falls per year. Dicembre is the wettest month, receiving around 241mm of rainfall. Carlton is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: Agosto, Luglio, Settembre. The coldest months are Dicembre, Febbraio, Gennaio, when temperatures can drop to 2°C. Light snow can occur between January and December.

Temperature

10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 8° Average: 5° Min: 3° Feb Max: 10° Average: 5° Min: 3° Mar Max: 13° Average: 7° Min: 4° Apr Max: 16° Average: 10° Min: 5° May Max: 21° Average: 14° Min: 8° Jun Max: 24° Average: 17° Min: 11° Jul Max: 29° Average: 20° Min: 13° Aug Max: 29° Average: 20° Min: 14° Sep Max: 24° Average: 17° Min: 11° Oct Max: 18° Average: 12° Min: 8° Nov Max: 11° Average: 7° Min: 4° Dec Max: 8° Average: 5° Min: 2°
Max
Average
Min

Temperatures in Carlton vary considerably across the year, with a 27°C difference between the coldest and warmest months. The warmest month is Agosto, when average highs reach 29°C and the mean temperature sits around 20°C. Dicembre is the coolest month, with minimum temperatures around 2°C and an average of 5°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 5°C shift in average temperatures.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 211mm Snow: 7mm Feb Precipitation: 151mm Snow: 11mm Mar Precipitation: 150mm Snow: 8mm Apr Precipitation: 118mm Snow: 3mm May Precipitation: 55mm Snow: 0mm Jun Precipitation: 39mm Snow: 0mm Jul Precipitation: 6mm Snow: 0mm Aug Precipitation: 9mm Snow: 0mm Sep Precipitation: 51mm Snow: 0mm Oct Precipitation: 124mm Snow: 0mm Nov Precipitation: 190mm Snow: 1mm Dec Precipitation: 241mm Snow: 8mm
Precipitation
Snow

Carlton is a fairly wet location, receiving approximately 1344mm of precipitation annually, which averages out to around 112mm per month. The wettest month is December, averaging 241mm of rainfall. January and November also tend to see above-average precipitation. The driest month is July, with just 6mm. That's 235mm less than December, 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 January and December, totalling around 38cm annually. February is the snowiest month with approximately 11cm.

Wind

0km/h 5km/h 10km/h 15km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 13km/h Feb Wind Speed: 14km/h Mar Wind Speed: 14km/h Apr Wind Speed: 14km/h May Wind Speed: 13km/h Jun Wind Speed: 13km/h Jul Wind Speed: 13km/h Aug Wind Speed: 12km/h Sep Wind Speed: 12km/h Oct Wind Speed: 13km/h Nov Wind Speed: 13km/h Dec Wind Speed: 13km/h
Wind Speed

Carlton is mildly breezy, with an average annual wind speed of 13km/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 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 12km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.

Seasons

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

92 days until Summer

It is currently spring in Carlton, which began on March 20, 2026. Carlton 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 Agosto at around 29°C, while the coldest stretch bottoms out in Dicembre near 2°C. Summer is next, beginning on June 21, 2026 — 92 days from now.

Spring

Temperatures range from 4 to 21°C. Rainfall is heavy, totalling around 323mm across the season with a monthly average of 108mm. Winds are generally light, averaging 13km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 11 to 29°C. Rainfall is relatively light, with around 53mm over the season and a monthly average of 18mm. Winds are generally light, averaging 13km/h. Comfortable clothing with a light layer for cooler evenings is all you need.

Autumn

Temperatures range from 4 to 24°C. Rainfall is heavy, totalling around 365mm across the season with a monthly average of 122mm. Winds are generally light, averaging 13km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 2 to 10°C. Rainfall is heavy, totalling around 602mm across the season with a monthly average of 201mm. Expect around 27cm of snow accumulation during this period. Winds are generally light, averaging 13km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan
Feb
Mar
Apr 10°
May 14°
Jun 17°
Jul 20°
Aug 20°
Sep 17°
Oct 12°
Nov
Dec

The best time to visit Carlton is during Giugno, Luglio, Agosto and Settembre, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 26mm per month. By contrast, Dicembre can be quite cold with temperatures dropping to 2°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 Carlton 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
3 °C
8 °C
13 km/h
211 mm
7 cm
Feb
3 °C
10 °C
14 km/h
151 mm
11 cm
Mar Current
4 °C
13 °C
14 km/h
150 mm
8 cm
Apr
5 °C
16 °C
14 km/h
118 mm
3 cm
May
8 °C
21 °C
13 km/h
55 mm
0 cm
Jun
11 °C
24 °C
13 km/h
39 mm
0 cm
Jul
13 °C
29 °C
13 km/h
6 mm
0 cm
Aug
14 °C
29 °C
12 km/h
9 mm
0 cm
Sep
11 °C
24 °C
12 km/h
51 mm
0 cm
Oct
8 °C
18 °C
13 km/h
124 mm
0 cm
Nov
4 °C
11 °C
13 km/h
190 mm
1 cm
Dec
2 °C
8 °C
13 km/h
241 mm
8 cm
Airpult

Get accurate weather forecasts worldwide with real-time updates and severe weather alerts. Covering 6M+ locations with precise, reliable weather data.

© 2026 Samuenti GmbH. All rights reserved.

English
Metric (°C, km/h)