Chaska, United States experiences average highs of 14°C (57°F) and lows of 5°C (41°F) throughout the year. Rainfall is moderate, averaging about 9 rainy days per month. Sunshine is abundant, averaging about 9 hours per day. Average highs have stayed broadly stable across the available records.
Chaska, United States Weather & Climate 2026
Monthly climate averages for Chaska, United States. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: Apr–Aug At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
5.1/10
Best: May, June, July, August, September
UV Index
4
Low
Temperature 14°C / 5°C
Feels Like 12°C / 2°C
Rainy Days 9
Rainfall 77 mm
Sunshine 9 h
Humidity 70%
Wind Speed 19 km/h
Dew Point 4°C
Snow Days 7 days
Frost Days 19 days
Hottest Month
29°C
July
Avg Low20°C
Rain10days
Coldest Month
-12°C
January
Avg High-4°C
Rain5days
Driest Month
5days
January
Avg High-4°C
Avg Low-12°C
Windiest Month
21 km/h
April (Gusts 45)
Worst Time to Visit
Consider avoiding January, March, November, December due to very cold temperatures.
Sun Position
Sunrise 05:29
Daylight 15.6h
Sunset 21:03
Live conditions—
Chaska on the map · live conditions
Chaska, United States
- Continent
- Americas
- Country
- United States
- City
- Chaska
- Population
- 25.2K
- Elevation
- 223 m
- Coordinates
- 44.79°, -93.60°
Seasonal Breakdown
Spring
Mar–May
Avg High 14°C
Avg Low 4°C
Rain 10 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 28°C
Avg Low 19°C
Rain 11 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 15°C
Avg Low 8°C
Rain 8 days/mo
1/3 best months
Winter
Dec–Feb
Avg High -2°C
Avg Low -10°C
Rain 6 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: -4°C / -12°C . Feb: -1°C / -11°C . Mar: 7°C / -3°C . Apr: 13°C / 3°C . May: 21°C / 11°C . Jun: 27°C / 18°C . Jul: 29°C / 20°C . Aug: 27°C / 19°C . Sep: 24°C / 15°C . Oct: 15°C / 8°C . Nov: 7°C / 0°C . Dec: -1°C / -8°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 27 mm. Feb: 27 mm. Mar: 63 mm. Apr: 94 mm. May: 125 mm. Jun: 103 mm. Jul: 96 mm. Aug: 128 mm. Sep: 98 mm. Oct: 73 mm. Nov: 40 mm. Dec: 45 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 76%. Feb: 73%. Mar: 68%. Apr: 66%. May: 65%. Jun: 65%. Jul: 69%. Aug: 72%. Sep: 71%. Oct: 68%. Nov: 71%. Dec: 76%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 18 km/h . Feb: 19 km/h . Mar: 20 km/h . Apr: 21 km/h . May: 19 km/h . Jun: 19 km/h . Jul: 16 km/h . Aug: 16 km/h . Sep: 18 km/h . Oct: 20 km/h . Nov: 20 km/h . Dec: 19 km/h .
Sunshine
Sunshine
Sunshine: Jan: 5h. Feb: 7h. Mar: 8h. Apr: 8h. May: 10h. Jun: 12h. Jul: 13h. Aug: 11h. Sep: 9h. Oct: 7h. 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 5. May: UV 6. Jun: UV 7. Jul: UV 7. Aug: UV 6. 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: 10 days. Feb: 9 days. Mar: 6 days. Apr: 4 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 1 days. Nov: 6 days. Dec: 11 days.
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending drier by about 15 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jul 2025 · 29°C | Jul · 29°C |
| Coldest month | Feb 2025 · -13°C | Jan · -12°C |
| Wettest month | Jun 2025 · 187 mm | Aug · 128 mm |
| Windiest month | Mar 2025 · 22 km/h | Apr · 21 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Poor May best
Good June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Fair November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | -4°C / -12°C | -8°C / -17°C | 5days (27 mm) Good | 5.4h Fair | 76% Humid | 2.1 Moderate | Poor | View Details |
| February | -1°C / -11°C | -6°C / -16°C | 5days (27 mm) Good | 7.4h Good | 73% Muggy | 3.2 Moderate | Poor | View Details |
| March | 7°C / -3°C | 3°C / -8°C | 8days (63 mm) Wet | 8.1h Good | 68% Muggy | 4.4 Moderate | Poor | View Details |
| April | 13°C / 3°C | 10°C / -1°C | 11days (94 mm) Wet | 8.4h Good | 66% Muggy | 5 Moderate | Poor | View Details |
| May best | 21°C / 11°C | 20°C / 9°C | 12days (125 mm) Wet | 10.3h Excellent | 65% Muggy | 6.3 High | Good | View Details |
| June best | 27°C / 18°C | 28°C / 17°C | 12days (103 mm) Wet | 12.1h Excellent | 65% Muggy | 6.6 High | Excellent | View Details |
| July best | 29°C / 20°C | 31°C / 21°C | 10days (96 mm) Wet | 12.5h Excellent | 69% Muggy | 7 High | Excellent | View Details |
| August best | 27°C / 19°C | 29°C / 19°C | 11days (128 mm) Wet | 10.8h Excellent | 72% Muggy | 6.3 High | Excellent | View Details |
| September best | 24°C / 15°C | 24°C / 15°C | 9days (98 mm) Wet | 9.3h Good | 71% Muggy | 5.1 High | Excellent | View Details |
| October | 15°C / 8°C | 13°C / 4°C | 9days (73 mm) Wet | 7.2h Good | 68% Muggy | 3.5 Moderate | Fair | View Details |
| November | 7°C / 0°C | 3°C / -5°C | 6days (40 mm) Good | 5.7h Fair | 71% Muggy | 2.3 Moderate | Poor | View Details |
| December | -1°C / -8°C | -5°C / -13°C | 7days (45 mm) Good | 4.9h Fair | 76% Humid | 1.9 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Chaska 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 Chaska, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Chaska is July, with average daytime highs of 29°C (83°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Chaska is January, with average overnight lows of -12°C (11°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Chaska is August, averaging 128mm of precipitation across 11 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Chaska runs through May, June, April, August, with the heaviest rainfall in May. Based on 10-year averages for Chaska.
Chaska receives approximately 102 sunshine hours per year. The sunniest month is July with around 13 hours. Based on climate data for Chaska.
The least favorable months to visit Chaska are January, March, November, December, primarily due to very cold temperatures. For the best conditions, consider May, June, July, August, September instead.
The annual average UV index in Chaska is 4, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Chaska is 70%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Chaska receives snow. Months with snowfall average 7 snow days and 13 cm (5 in) of accumulation, with about 19 frost days during winter.
Average wind speeds in Chaska are 19 km/h (12 mph). The windiest month is April with peak winds reaching 21 km/h (13 mph) (gusts up to 45 km/h / 28 mph).
Chaska averages 4 clear-sky days per month with overall cloud cover around 57%. The clearest skies occur in September.
The annual average dew point in Chaska is 4°C (39°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Chaska has a Hot-Summer Continental climate, classified as Dfa under the Köppen system. Continental climates experience extreme temperature ranges — hot summers and cold, snowy winters.
The 'feels like' temperature in Chaska ranges from 2°C (36°F) to 12°C (54°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 Chaska. It earns a climate score of 8.4/10 with Excellent.
For June in Chaska, pack Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+), Sun hat. With average highs of 27°C (81°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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