UTC Offset
UTC-07:00
Sumner, United States Snapshot 2026
Where is Sumner?
Sumner, United States
- Continent
- Americas
- Country
- United States
- City
- Sumner
- Population
- 9.7K
- Elevation
- 23 m
- Coordinates
- 47.20°, -122.24°
Sumner is a city in United States with a population of approximately 9.7K. Average temperatures range from 1°C (34°F) in February to 26°C (79°F) in August. The best time to visit is June, July, August, September.
Time in Sumner right now
Open full time & time zone page 14:12 12
Monday, June 15, 2026
IANA time zone
America/Los_Angeles
Daylight saving
DST in effect
PST / PDT
Next DST change
November 1
backward -1h
Live weather in Sumner
Daylight in Sumner today
View full sunrise & sunset page Sunrise
Sunset
Day length
15h 54m
Climate normals for Sumner
Long-term monthly averages based on historical data.
January
Wet 
February
Poor March
Wet April
Fair May
Good June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Fair November
Wet December
Wet | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 8°C / 2°C | 6°C / -2°C | 18days (197 mm) Wet | 4.2h Fair | 86% Very Muggy | 1.4 Low | Wet | View Details |
| February | 8°C / 1°C | 5°C / -2°C | 17days (163 mm) Wet | 5.3h Fair | 84% Humid | 2 Low | Poor | View Details |
| March | 11°C / 3°C | 9°C / -1°C | 18days (140 mm) Wet | 7.6h Good | 82% Humid | 3.4 Moderate | Wet | View Details |
| April | 15°C / 5°C | 13°C / 2°C | 16days (109 mm) Wet | 9.2h Good | 78% Humid | 5 Moderate | Fair | View Details |
| May | 19°C / 9°C | 18°C / 7°C | 11days (67 mm) Wet | 10.6h Excellent | 76% Humid | 5.7 High | Good | View Details |
| June best | 22°C / 11°C | 22°C / 10°C | 10days (59 mm) Wet | 11.5h Excellent | 73% Muggy | 6.5 High | Excellent | View Details |
| July best | 26°C / 14°C | 26°C / 14°C | 3days (13 mm) Excellent | 12.6h Excellent | 67% Muggy | 7 High | Excellent | View Details |
| August best | 26°C / 15°C | 27°C / 15°C | 4days (18 mm) Good | 11.5h Excellent | 69% Muggy | 6 High | Excellent | View Details |
| September best | 22°C / 12°C | 22°C / 11°C | 9days (67 mm) Wet | 9.7h Good | 76% Humid | 4.8 Moderate | Excellent | View Details |
| October | 16°C / 8°C | 14°C / 6°C | 16days (144 mm) Wet | 7.1h Good | 83% Humid | 3 Moderate | Fair | View Details |
| November | 11°C / 5°C | 9°C / 2°C | 19days (195 mm) Wet | 4.7h Fair | 87% Very Muggy | 1.7 Low | Wet | View Details |
| December | 8°C / 2°C | 5°C / -1°C | 19days (218 mm) Wet | 3.6h Poor | 88% Very Muggy | 1.1 Low | Wet | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 8°C / 2°C . Feb: 8°C / 1°C . Mar: 11°C / 3°C . Apr: 15°C / 5°C . May: 19°C / 9°C . Jun: 22°C / 11°C . Jul: 26°C / 14°C . Aug: 26°C / 15°C . Sep: 22°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: 197 mm. Feb: 163 mm. Mar: 140 mm. Apr: 109 mm. May: 67 mm. Jun: 59 mm. Jul: 13 mm. Aug: 18 mm. Sep: 67 mm. Oct: 144 mm. Nov: 195 mm. Dec: 218 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 86%. Feb: 84%. Mar: 82%. Apr: 78%. May: 76%. Jun: 73%. Jul: 67%. Aug: 69%. Sep: 76%. Oct: 83%. Nov: 87%. Dec: 88%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 14 km/h . Feb: 16 km/h . Mar: 15 km/h . Apr: 15 km/h . May: 13 km/h . Jun: 13 km/h . Jul: 11 km/h . Aug: 12 km/h . Sep: 12 km/h . Oct: 14 km/h . Nov: 15 km/h . Dec: 15 km/h .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 1. Feb: UV 2. Mar: UV 3. 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.
Frequently Asked Questions
Sumner has a population of approximately 9.7K.
The best months to visit Sumner are June, July, August, September, when temperatures are pleasant and rainfall is lower.
Sumner receives approximately 1390mm of rainfall annually across 160 rainy days.
Sumner is located in United States, in the Americas region.
Sumner sits at an elevation of 23 m (75 ft) above sea level.