Griffith, United States experiences average highs of 16°C (61°F) and lows of 8°C (46°F) throughout the year. Rainfall is moderate, averaging about 11 rainy days per month. Sunshine is abundant, averaging about 9 hours per day. Average highs have stayed broadly stable across the available records.
Griffith, United States Weather & Climate 2026
Monthly climate averages for Griffith, United States. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: Mar–Aug At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
5.2/10
Best: June, July, August, September
UV Index
5
Low
Temperature 16°C / 8°C
Feels Like 14°C / 5°C
Rainy Days 11
Rainfall 90 mm
Sunshine 9 h
Humidity 72%
Wind Speed 21 km/h
Dew Point 7°C
Snow Days 7 days
Frost Days 16 days
Hottest Month
28°C
July
Avg Low20°C
Rain12days
Coldest Month
-5°C
January
Avg High1°C
Rain10days
Driest Month
8days
November
Avg High10°C
Avg Low3°C
Windiest Month
23 km/h
March (Gusts 46)
Worst Time to Visit
Consider avoiding January, February, March, December due to very cold temperatures.
Sun Position
Sunrise 05:17
Daylight 15.2h
Sunset 20:27
Live conditions—
Griffith on the map · live conditions
Griffith, United States
- Continent
- Americas
- Country
- United States
- City
- Griffith
- Population
- 16.4K
- Elevation
- 192 m
- Coordinates
- 41.53°, -87.42°
Seasonal Breakdown
Spring
Mar–May
Avg High 15°C
Avg Low 6°C
Rain 13 days/mo
Summer
Jun–Aug
Avg High 27°C
Avg Low 19°C
Rain 12 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 17°C
Avg Low 10°C
Rain 9 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 3°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: 1°C / -5°C . Feb: 4°C / -4°C . Mar: 10°C / 1°C . Apr: 15°C / 5°C . May: 20°C / 11°C . Jun: 26°C / 17°C . Jul: 28°C / 20°C . Aug: 27°C / 19°C . Sep: 25°C / 16°C . Oct: 18°C / 10°C . Nov: 10°C / 3°C . Dec: 4°C / -2°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 68 mm. Feb: 63 mm. Mar: 105 mm. Apr: 111 mm. May: 127 mm. Jun: 109 mm. Jul: 102 mm. Aug: 92 mm. Sep: 68 mm. Oct: 114 mm. Nov: 62 mm. Dec: 61 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 74%. Feb: 71%. Mar: 69%. Apr: 69%. May: 73%. Jun: 70%. Jul: 75%. Aug: 74%. Sep: 71%. Oct: 69%. Nov: 70%. Dec: 73%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 22 km/h . Feb: 23 km/h . Mar: 23 km/h . Apr: 23 km/h . May: 20 km/h . Jun: 19 km/h . Jul: 17 km/h . Aug: 17 km/h . Sep: 18 km/h . Oct: 22 km/h . Nov: 23 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: 10h. Oct: 8h. Nov: 6h. Dec: 5h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 5. Apr: UV 5. May: UV 7. 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: 12 days. Feb: 9 days. Mar: 5 days. Apr: 3 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 3 days. Dec: 7 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 · -7°C | Jan · -5°C |
| Wettest month | Jun 2025 · 158 mm | May · 127 mm |
| Windiest month | Mar 2025 · 26 km/h | Mar · 23 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Fair May
Good 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 | 1°C / -5°C | -4°C / -11°C | 10days (68 mm) Wet | 5.1h Fair | 74% Muggy | 2.1 Moderate | Poor | View Details |
| February | 4°C / -4°C | -1°C / -9°C | 9days (63 mm) Wet | 7h Good | 71% Muggy | 3.4 Moderate | Poor | View Details |
| March | 10°C / 1°C | 6°C / -4°C | 12days (105 mm) Wet | 7.8h Good | 69% Muggy | 4.6 Moderate | Poor | View Details |
| April | 15°C / 5°C | 12°C / 1°C | 14days (111 mm) Wet | 9h Good | 69% Muggy | 5.4 High | Fair | View Details |
| May | 20°C / 11°C | 20°C / 9°C | 14days (127 mm) Wet | 10.4h Excellent | 73% Muggy | 6.7 High | Good | View Details |
| June best | 26°C / 17°C | 28°C / 17°C | 11days (109 mm) Wet | 12h Excellent | 70% Muggy | 7 High | Excellent | View Details |
| July best | 28°C / 20°C | 31°C / 21°C | 12days (102 mm) Wet | 12h Excellent | 75% Muggy | 7 High | Excellent | View Details |
| August best | 27°C / 19°C | 30°C / 20°C | 12days (92 mm) Wet | 11.4h Excellent | 74% Muggy | 6.5 High | Excellent | View Details |
| September best | 25°C / 16°C | 25°C / 16°C | 9days (68 mm) Wet | 9.8h Good | 71% Muggy | 5.3 High | Excellent | View Details |
| October | 18°C / 10°C | 16°C / 7°C | 11days (114 mm) Wet | 7.6h Good | 69% Muggy | 3.8 Moderate | Good | View Details |
| November | 10°C / 3°C | 6°C / -2°C | 8days (62 mm) Wet | 6.2h Fair | 70% Muggy | 2.6 Moderate | Poor | View Details |
| December | 4°C / -2°C | 0°C / -7°C | 8days (61 mm) Wet | 5.1h Fair | 73% Muggy | 1.8 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Griffith are June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Griffith, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Griffith is July, with average daytime highs of 28°C (82°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Griffith 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 Griffith is May, averaging 127mm of precipitation across 14 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Griffith runs through April, May, March, July, with the heaviest rainfall in April. Based on 10-year averages for Griffith.
Griffith receives approximately 103 sunshine hours per year. The sunniest month is June with around 12 hours. Based on climate data for Griffith.
The least favorable months to visit Griffith are January, February, March, December, primarily due to very cold temperatures. For the best conditions, consider June, July, August, September instead.
The annual average UV index in Griffith is 5, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Griffith is 72%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Griffith receives snow. Months with snowfall average 7 snow days and 10 cm (4 in) of accumulation, with about 16 frost days during winter.
Average wind speeds in Griffith are 21 km/h (13 mph). The windiest month is March with peak winds reaching 23 km/h (14 mph) (gusts up to 46 km/h / 29 mph).
Griffith averages 4 clear-sky days per month with overall cloud cover around 61%. The clearest skies occur in September.
The annual average dew point in Griffith is 7°C (45°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Griffith 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 Griffith ranges from 5°C (41°F) to 14°C (57°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 Griffith. It earns a climate score of 8.4/10 with Excellent.
For June in Griffith, pack Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+), Sun hat. With average highs of 26°C (80°F) and 11 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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