Centralia, United States experiences average highs of 16°C (61°F) and lows of 7°C (45°F) throughout the year. Rainfall is frequent, averaging about 13 rainy days per month. Average highs have stayed broadly stable across the available records.
Centralia, United States Weather & Climate 2026
Monthly climate averages for Centralia, 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
5.4/10
Best: June, July, August, September
UV Index
4
Low
Temperature 16°C / 7°C
Feels Like 15°C / 5°C
Rainy Days 13
Rainfall 112 mm
Sunshine 8 h
Humidity 80%
Wind Speed 13 km/h
Dew Point 8°C
Snow Days 3 days
Frost Days 7 days
Hottest Month
27°C
August
Avg Low14°C
Rain4days
Coldest Month
2°C
February
Avg High8°C
Rain18days
Driest Month
2days
July
Avg High27°C
Avg Low13°C
Windiest Month
14 km/h
December (Gusts 38)
Worst Time to Visit
Consider avoiding January, February, March, December due to heavy rainfall.
Sun Position
Sunrise 05:19
Daylight 15.8h
Sunset 21:09
Live conditions—
Centralia on the map · live conditions
Centralia, United States
- Continent
- Americas
- Country
- United States
- City
- Centralia
- Population
- 16.8K
- Elevation
- 57 m
- Coordinates
- 46.72°, -122.95°
Seasonal Breakdown
Spring
Mar–May
Avg High 15°C
Avg Low 5°C
Rain 15 days/mo
Summer
Jun–Aug
Avg High 25°C
Avg Low 13°C
Rain 5 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 17°C
Avg Low 8°C
Rain 13 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 8°C
Avg Low 2°C
Rain 19 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: 8°C / 2°C . Feb: 8°C / 2°C . Mar: 12°C / 3°C . Apr: 15°C / 5°C . May: 19°C / 8°C . Jun: 22°C / 11°C . Jul: 27°C / 13°C . Aug: 27°C / 14°C . Sep: 23°C / 12°C . Oct: 16°C / 8°C . Nov: 11°C / 5°C . Dec: 8°C / 2°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 194 mm. Feb: 151 mm. Mar: 148 mm. Apr: 116 mm. May: 62 mm. Jun: 49 mm. Jul: 9 mm. Aug: 17 mm. Sep: 63 mm. Oct: 137 mm. Nov: 196 mm. Dec: 207 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 89%. Feb: 87%. Mar: 84%. Apr: 79%. May: 75%. Jun: 72%. Jul: 66%. Aug: 67%. Sep: 76%. Oct: 85%. Nov: 90%. Dec: 91%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 14 km/h . Feb: 14 km/h . Mar: 14 km/h . Apr: 14 km/h . May: 13 km/h . Jun: 13 km/h . Jul: 12 km/h . Aug: 12 km/h . Sep: 12 km/h . Oct: 13 km/h . Nov: 14 km/h . Dec: 14 km/h .
Sunshine
Sunshine
Sunshine: Jan: 4h. Feb: 5h. Mar: 7h. Apr: 9h. May: 11h. Jun: 12h. Jul: 12h. Aug: 11h. Sep: 10h. Oct: 7h. Nov: 5h. Dec: 4h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 1. Feb: UV 2. Mar: UV 4. Apr: UV 5. May: UV 6. Jun: UV 7. Jul: UV 7. Aug: UV 6. Sep: UV 5. Oct: UV 3. Nov: UV 2. Dec: UV 1.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 3 days. Feb: 5 days. Mar: 3 days. Apr: 1 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 0 days. Dec: 4 days.
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending drier by about 24 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jul 2025 · 28°C | Aug · 27°C |
| Coldest month | Jan 2025 · 0°C | Feb · 2°C |
| Wettest month | Dec 2025 · 286 mm | Dec · 207 mm |
| Windiest month | Dec 2025 · 16 km/h | Dec · 14 km/h |
Month-by-Month Weather Table
January
Wet 
February
Wet March
Wet April
Poor May
Good June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Good November
Wet December
Wet | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 8°C / 2°C | 6°C / -1°C | 18days (194 mm) Wet | 4h Fair | 89% Very Muggy | 1.4 Low | Wet | View Details |
| February | 8°C / 2°C | 6°C / -1°C | 18days (151 mm) Wet | 5.2h Fair | 87% Very Muggy | 2 Low | Wet | View Details |
| March | 12°C / 3°C | 9°C / 0°C | 19days (148 mm) Wet | 7.1h Good | 84% Humid | 3.5 Moderate | Wet | View Details |
| April | 15°C / 5°C | 13°C / 3°C | 16days (116 mm) Wet | 8.9h Good | 79% Humid | 5 Moderate | Poor | View Details |
| May | 19°C / 8°C | 18°C / 7°C | 10days (62 mm) Wet | 10.5h Excellent | 75% Muggy | 5.9 High | Good | View Details |
| June best | 22°C / 11°C | 22°C / 10°C | 9days (49 mm) Wet | 11.5h Excellent | 72% Muggy | 6.5 High | Excellent | View Details |
| July best | 27°C / 13°C | 27°C / 13°C | 2days (9 mm) Excellent | 12.2h Excellent | 66% Muggy | 7.1 Very High | Excellent | View Details |
| August best | 27°C / 14°C | 27°C / 14°C | 4days (17 mm) Good | 11.3h Excellent | 67% Muggy | 6 High | Excellent | View Details |
| September best | 23°C / 12°C | 22°C / 11°C | 8days (63 mm) Wet | 9.5h Good | 76% Humid | 4.8 Moderate | Excellent | View Details |
| October | 16°C / 8°C | 15°C / 6°C | 14days (137 mm) Wet | 6.9h Fair | 85% Humid | 3.1 Moderate | Good | View Details |
| November | 11°C / 5°C | 9°C / 2°C | 18days (196 mm) Wet | 4.6h Fair | 90% Very Muggy | 1.8 Low | Wet | View Details |
| December | 8°C / 2°C | 5°C / -1°C | 20days (207 mm) Wet | 3.5h Poor | 91% Very Muggy | 1.1 Low | Wet | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Centralia are June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Centralia, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Centralia is August, with average daytime highs of 27°C (81°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Centralia is February, with average overnight lows of 2°C (35°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Centralia is December, averaging 207mm of precipitation across 20 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Centralia runs through December, March, January, February, with the heaviest rainfall in December. Based on 10-year averages for Centralia.
Centralia receives approximately 95 sunshine hours per year. The sunniest month is July with around 12 hours. Based on climate data for Centralia.
The least favorable months to visit Centralia are January, February, March, December, primarily due to heavy rainfall. For the best conditions, consider June, July, August, September instead.
The annual average UV index in Centralia is 4, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Centralia is 80%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Centralia receives snow. Months with snowfall average 3 snow days and 6 cm (2 in) of accumulation, with about 7 frost days during winter.
Average wind speeds in Centralia are 13 km/h (8 mph). The windiest month is December with peak winds reaching 14 km/h (9 mph) (gusts up to 38 km/h / 23 mph).
Centralia averages 3 clear-sky days per month with overall cloud cover around 67%. The clearest skies occur in July.
The annual average dew point in Centralia is 8°C (46°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Centralia has a Warm-Summer Mediterranean climate, classified as Csb 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 Centralia ranges from 5°C (41°F) to 15°C (59°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
Yes, June is a great time to visit Centralia. It earns a climate score of 8.3/10 with Excellent.
For June in Centralia, pack Warm evening layer, Umbrella, Sunscreen (SPF 30+), Sunglasses, Comfortable walking shoes. With average highs of 22°C (72°F) and 9 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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