Pendleton, United States experiences average highs of 19°C (66°F) and lows of 7°C (45°F) throughout the year. Rainfall is moderate, averaging about 8 rainy days per month. Sunshine is abundant, averaging about 10 hours per day. Average highs have stayed broadly stable across the available records.
Pendleton, United States Weather & Climate 2026
Monthly climate averages for Pendleton, United States. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: May–Oct 
Wetter season: Jan–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
6/10
Best: May, June, July, August, September
UV Index
5
Low
Temperature 19°C / 7°C
Feels Like 16°C / 4°C
Rainy Days 8
Rainfall 40 mm
Sunshine 10 h
Humidity 59%
Wind Speed 16 km/h
Dew Point 4°C
Snow Days 6 days
Frost Days 10 days
Hottest Month
33°C
July
Avg Low18°C
Rain1days
Coldest Month
-1°C
January
Avg High7°C
Rain13days
Driest Month
1days
July
Avg High33°C
Avg Low18°C
Windiest Month
18 km/h
April (Gusts 40)
Worst Time to Visit
Consider avoiding January, February, December due to very cold temperatures, frequent rain.
Sun Position
Sunrise 05:06
Daylight 15.7h
Sunset 20:48
Live conditions—
Pendleton on the map · live conditions
Pendleton, United States
- Continent
- Americas
- Country
- United States
- City
- Pendleton
- Population
- 16.9K
- Elevation
- 325 m
- Coordinates
- 45.67°, -118.79°
Seasonal Breakdown
Spring
Mar–May
Avg High 18°C
Avg Low 5°C
Rain 9 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 31°C
Avg Low 17°C
Rain 2 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 19°C
Avg Low 8°C
Rain 8 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 7°C
Avg Low -1°C
Rain 13 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 7°C / -1°C . Feb: 8°C / -1°C . Mar: 13°C / 2°C . Apr: 17°C / 5°C . May: 23°C / 10°C . Jun: 28°C / 14°C . Jul: 33°C / 18°C . Aug: 32°C / 18°C . Sep: 27°C / 13°C . Oct: 18°C / 7°C . Nov: 11°C / 3°C . Dec: 7°C / -1°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 61 mm. Feb: 64 mm. Mar: 56 mm. Apr: 42 mm. May: 39 mm. Jun: 19 mm. Jul: 2 mm. Aug: 6 mm. Sep: 16 mm. Oct: 46 mm. Nov: 61 mm. Dec: 66 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 77%. Feb: 73%. Mar: 68%. Apr: 59%. May: 53%. Jun: 44%. Jul: 32%. Aug: 37%. Sep: 48%. Oct: 62%. Nov: 74%. Dec: 78%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 14 km/h . Feb: 16 km/h . Mar: 17 km/h . Apr: 18 km/h . May: 17 km/h . Jun: 17 km/h . Jul: 15 km/h . Aug: 15 km/h . Sep: 15 km/h . Oct: 15 km/h . Nov: 15 km/h . Dec: 14 km/h .
Sunshine
Sunshine
Sunshine: Jan: 6h. Feb: 7h. Mar: 9h. Apr: 11h. May: 12h. Jun: 13h. Jul: 14h. Aug: 12h. Sep: 11h. Oct: 9h. Nov: 6h. Dec: 5h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 4. Apr: UV 6. May: UV 7. Jun: UV 7. Jul: UV 8. Aug: UV 7. Sep: UV 5. Oct: UV 4. Nov: UV 2. Dec: UV 2.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 7 days. Feb: 11 days. Mar: 4 days. Apr: 2 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 3 days. Dec: 9 days.
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall has remained broadly steady.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jul 2025 · 33°C | Jul · 33°C |
| Coldest month | Feb 2025 · -4°C | Jan · -1°C |
| Wettest month | Dec 2025 · 100 mm | Dec · 66 mm |
| Windiest month | May 2025 · 18 km/h | Apr · 18 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Fair May best
Excellent June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Good November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 7°C / -1°C | 4°C / -5°C | 13days (61 mm) Wet | 5.5h Fair | 77% Humid | 1.9 Low | Poor | View Details |
| February | 8°C / -1°C | 5°C / -5°C | 14days (64 mm) Wet | 6.8h Fair | 73% Muggy | 2.7 Moderate | Poor | View Details |
| March | 13°C / 2°C | 10°C / -2°C | 12days (56 mm) Wet | 8.9h Good | 68% Muggy | 4.1 Moderate | Poor | View Details |
| April | 17°C / 5°C | 15°C / 2°C | 9days (42 mm) Wet | 10.8h Excellent | 59% Moderate | 5.7 High | Fair | View Details |
| May best | 23°C / 10°C | 21°C / 7°C | 6days (39 mm) Good | 12.3h Excellent | 53% Moderate | 6.5 High | Excellent | View Details |
| June best | 28°C / 14°C | 26°C / 12°C | 3days (19 mm) Excellent | 13.2h Excellent | 44% Moderate | 7.2 Very High | Excellent | View Details |
| July best | 33°C / 18°C | 32°C / 17°C | 1days (2 mm) Excellent | 13.8h Excellent | 32% Comfortable | 7.5 Very High | Excellent | View Details |
| August best | 32°C / 18°C | 31°C / 17°C | 1days (6 mm) Excellent | 12.4h Excellent | 37% Comfortable | 6.5 High | Excellent | View Details |
| September best | 27°C / 13°C | 25°C / 12°C | 4days (16 mm) Good | 10.8h Excellent | 48% Moderate | 5.3 High | Excellent | View Details |
| October | 18°C / 7°C | 16°C / 5°C | 8days (46 mm) Wet | 8.5h Good | 62% Muggy | 3.6 Moderate | Good | View Details |
| November | 11°C / 3°C | 9°C / 0°C | 11days (61 mm) Wet | 6.3h Fair | 74% Muggy | 2 Low | Poor | View Details |
| December | 7°C / -1°C | 3°C / -4°C | 13days (66 mm) Wet | 5h Fair | 78% Humid | 1.5 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Pendleton are May, June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Pendleton, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Pendleton is July, with average daytime highs of 33°C (92°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Pendleton is January, with average overnight lows of -1°C (30°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Pendleton is December, averaging 66mm of precipitation across 13 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Pendleton runs through February, January, December, March, with the heaviest rainfall in February. Based on 10-year averages for Pendleton.
Pendleton receives approximately 114 sunshine hours per year. The sunniest month is July with around 14 hours. Based on climate data for Pendleton.
The least favorable months to visit Pendleton are January, February, December, primarily due to very cold temperatures, frequent rain. For the best conditions, consider May, June, July, August, September instead.
The annual average UV index in Pendleton is 5, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Pendleton is 59%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Pendleton receives snow. Months with snowfall average 6 snow days and 8 cm (3 in) of accumulation, with about 10 frost days during winter.
Average wind speeds in Pendleton are 16 km/h (10 mph). The windiest month is April with peak winds reaching 18 km/h (11 mph) (gusts up to 40 km/h / 25 mph).
Pendleton averages 7 clear-sky days per month with overall cloud cover around 51%. The clearest skies occur in July.
The annual average dew point in Pendleton is 4°C (39°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Pendleton has a Hot-Summer Mediterranean climate, classified as Csa under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Pendleton ranges from 4°C (39°F) to 16°C (61°F) on average. Wind chill makes winters feel noticeably colder than the actual temperature — layered clothing is recommended.
Yes, June is a great time to visit Pendleton. It earns a climate score of 9.8/10 with Excellent.
For June in Pendleton, pack Breathable clothing, Sunscreen (SPF 30+), Sun hat, Sunglasses, Comfortable walking shoes. With average highs of 28°C (82°F) and 3 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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