Defiance, United States experiences average highs of 16°C (61°F) and lows of 7°C (45°F) throughout the year. Rainfall is moderate, averaging about 10 rainy days per month. Average highs have stayed broadly stable across the available records.
Defiance, United States Weather & Climate 2026
Monthly climate averages for Defiance, United States. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: Mar–Jul At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
5.4/10
Best: May, June, July, August, September
UV Index
5
Low
Temperature 16°C / 7°C
Feels Like 14°C / 5°C
Rainy Days 10
Rainfall 83 mm
Sunshine 8 h
Humidity 70%
Wind Speed 21 km/h
Dew Point 6°C
Snow Days 5 days
Frost Days 14 days
Hottest Month
28°C
July
Avg Low19°C
Rain12days
Coldest Month
-5°C
January
Avg High2°C
Rain9days
Driest Month
7days
September
Avg High25°C
Avg Low16°C
Windiest Month
24 km/h
March (Gusts 46)
Worst Time to Visit
Consider avoiding January, February, March, December due to very cold temperatures, frequent rain.
Sun Position
Sunrise 06:05
Daylight 15.1h
Sunset 21:13
Live conditions—
Defiance on the map · live conditions
Defiance, United States
- Continent
- Americas
- Country
- United States
- City
- Defiance
- Population
- 16.8K
- Elevation
- 206 m
- Coordinates
- 41.28°, -84.36°
Seasonal Breakdown
Spring
Mar–May
Avg High 16°C
Avg Low 6°C
Rain 13 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 27°C
Avg Low 18°C
Rain 11 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 18°C
Avg Low 9°C
Rain 8 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 4°C
Avg Low -4°C
Rain 9 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: 2°C / -5°C . Feb: 5°C / -4°C . Mar: 11°C / 1°C . Apr: 16°C / 5°C . May: 21°C / 11°C . Jun: 27°C / 17°C . Jul: 28°C / 19°C . Aug: 27°C / 18°C . Sep: 25°C / 16°C . Oct: 18°C / 9°C . Nov: 10°C / 2°C . Dec: 5°C / -2°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 70 mm. Feb: 70 mm. Mar: 96 mm. Apr: 94 mm. May: 113 mm. Jun: 108 mm. Jul: 106 mm. Aug: 80 mm. Sep: 57 mm. Oct: 76 mm. Nov: 66 mm. Dec: 64 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 73%. Feb: 72%. Mar: 66%. Apr: 67%. May: 70%. Jun: 68%. Jul: 72%. Aug: 72%. Sep: 69%. Oct: 68%. Nov: 70%. Dec: 74%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 22 km/h . Feb: 24 km/h . Mar: 24 km/h . Apr: 23 km/h . May: 21 km/h . Jun: 19 km/h . Jul: 16 km/h . Aug: 16 km/h . Sep: 17 km/h . Oct: 21 km/h . Nov: 22 km/h . Dec: 22 km/h .
Sunshine
Sunshine
Sunshine: Jan: 5h. Feb: 7h. Mar: 8h. Apr: 9h. May: 10h. Jun: 12h. Jul: 12h. Aug: 11h. Sep: 9h. Oct: 8h. 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 6. Jun: UV 7. Jul: UV 7. Aug: UV 7. Sep: UV 5. Oct: UV 4. Nov: UV 3. 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: 9 days. Feb: 8 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: 6 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 · 29°C | Jul · 28°C |
| Coldest month | Jan 2025 · -8°C | Jan · -5°C |
| Wettest month | Jul 2025 · 134 mm | May · 113 mm |
| Windiest month | Mar 2025 · 27 km/h | Mar · 24 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 | 2°C / -5°C | -3°C / -10°C | 9days (70 mm) Wet | 4.7h Fair | 73% Muggy | 2.2 Moderate | Poor | View Details |
| February | 5°C / -4°C | 0°C / -9°C | 9days (70 mm) Wet | 6.6h Fair | 72% Muggy | 3.4 Moderate | Poor | View Details |
| March | 11°C / 1°C | 7°C / -4°C | 12days (96 mm) Wet | 7.5h Good | 66% Muggy | 4.4 Moderate | Poor | View Details |
| April | 16°C / 5°C | 13°C / 1°C | 13days (94 mm) Wet | 8.9h Good | 67% Muggy | 5.7 High | Fair | View Details |
| May best | 21°C / 11°C | 21°C / 9°C | 13days (113 mm) Wet | 9.9h Good | 70% Muggy | 6.4 High | Excellent | View Details |
| June best | 27°C / 17°C | 28°C / 17°C | 12days (108 mm) Wet | 11.6h Excellent | 68% Muggy | 6.9 High | Excellent | View Details |
| July best | 28°C / 19°C | 31°C / 21°C | 12days (106 mm) Wet | 11.7h Excellent | 72% Muggy | 7.1 Very High | Excellent | View Details |
| August best | 27°C / 18°C | 29°C / 19°C | 10days (80 mm) Wet | 11.2h Excellent | 72% Muggy | 6.5 High | Excellent | View Details |
| September best | 25°C / 16°C | 25°C / 15°C | 7days (57 mm) Good | 9.4h Good | 69% Muggy | 5.3 High | Excellent | View Details |
| October | 18°C / 9°C | 16°C / 7°C | 10days (76 mm) Wet | 7.6h Good | 68% Muggy | 3.8 Moderate | Good | View Details |
| November | 10°C / 2°C | 6°C / -2°C | 8days (66 mm) Wet | 6h Fair | 70% Muggy | 2.6 Moderate | Poor | View Details |
| December | 5°C / -2°C | 0°C / -7°C | 10days (64 mm) Wet | 4.6h Fair | 74% Muggy | 1.9 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Defiance 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 Defiance, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Defiance is July, with average daytime highs of 28°C (83°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Defiance is January, with average overnight lows of -5°C (22°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Defiance is May, averaging 113mm of precipitation across 13 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Defiance runs through April, May, March, June, with the heaviest rainfall in April. Based on 10-year averages for Defiance.
Defiance receives approximately 100 sunshine hours per year. The sunniest month is July with around 12 hours. Based on climate data for Defiance.
The least favorable months to visit Defiance are January, February, March, 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 Defiance is 5, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Defiance is 70%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Defiance receives snow. Months with snowfall average 5 snow days and 9 cm (4 in) of accumulation, with about 14 frost days during winter.
Average wind speeds in Defiance are 21 km/h (13 mph). The windiest month is March with peak winds reaching 24 km/h (15 mph) (gusts up to 46 km/h / 29 mph).
Defiance averages 4 clear-sky days per month with overall cloud cover around 62%. The clearest skies occur in September.
The annual average dew point in Defiance is 6°C (43°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Defiance has a Humid Subtropical climate, classified as Cfa 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 Defiance ranges from 5°C (41°F) to 14°C (57°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 Defiance. It earns a climate score of 8.4/10 with Excellent.
For June in Defiance, pack Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+), Sun hat. With average highs of 27°C (80°F) and 12 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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