Ames, United States experiences average highs of 16°C (61°F) and lows of 6°C (43°F) throughout the year. Rainfall is moderate, averaging about 8 rainy days per month. Sunshine is abundant, averaging about 9 hours per day. Average highs have stayed broadly stable across the available records.
Ames, United States Weather & Climate 2026
Monthly climate averages for Ames, United States. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: Mar–Jun At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
5.5/10
Best: May, June, July, August, September
UV Index
5
Low
Temperature 16°C / 6°C
Feels Like 14°C / 3°C
Rainy Days 8
Rainfall 76 mm
Sunshine 9 h
Humidity 68%
Wind Speed 22 km/h
Dew Point 5°C
Snow Days 5 days
Frost Days 17 days
Hottest Month
29°C
July
Avg Low20°C
Rain8days
Coldest Month
-10°C
January
Avg High-1°C
Rain7days
Driest Month
6days
February
Avg High2°C
Avg Low-8°C
Windiest Month
27 km/h
April (Gusts 50)
Worst Time to Visit
Consider avoiding January, February, March, December due to very cold temperatures.
Sun Position
Sunrise 05:40
Daylight 15.2h
Sunset 20:53
Live conditions—
Ames on the map · live conditions
Ames, United States
- Continent
- Americas
- Country
- United States
- City
- Ames
- Population
- 65.1K
- Elevation
- 287 m
- Coordinates
- 42.03°, -93.62°
Seasonal Breakdown
Spring
Mar–May
Avg High 16°C
Avg Low 5°C
Rain 11 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 29°C
Avg Low 19°C
Rain 9 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 18°C
Avg Low 8°C
Rain 7 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 1°C
Avg Low -8°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: -1°C / -10°C . Feb: 2°C / -8°C . Mar: 11°C / 0°C . Apr: 16°C / 5°C . May: 22°C / 12°C . Jun: 28°C / 18°C . Jul: 29°C / 20°C . Aug: 28°C / 19°C . Sep: 26°C / 16°C . Oct: 18°C / 8°C . Nov: 10°C / 1°C . Dec: 3°C / -5°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 36 mm. Feb: 32 mm. Mar: 79 mm. Apr: 90 mm. May: 137 mm. Jun: 103 mm. Jul: 96 mm. Aug: 76 mm. Sep: 90 mm. Oct: 93 mm. Nov: 46 mm. Dec: 37 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 74%. Feb: 70%. Mar: 66%. Apr: 62%. May: 67%. Jun: 67%. Jul: 73%. Aug: 71%. Sep: 68%. Oct: 63%. Nov: 67%. Dec: 71%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 23 km/h . Feb: 24 km/h . Mar: 25 km/h . Apr: 27 km/h . May: 22 km/h . Jun: 21 km/h . Jul: 18 km/h . Aug: 18 km/h . Sep: 20 km/h . Oct: 24 km/h . Nov: 23 km/h . Dec: 23 km/h .
Sunshine
Sunshine
Sunshine: Jan: 6h. Feb: 8h. Mar: 8h. Apr: 9h. May: 10h. Jun: 12h. Jul: 12h. Aug: 11h. Sep: 10h. Oct: 8h. Nov: 7h. Dec: 6h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 3. Feb: UV 4. Mar: UV 5. Apr: UV 6. May: UV 7. Jun: UV 7. Jul: UV 7. Aug: UV 7. Sep: UV 6. 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: 7 days. Mar: 5 days. Apr: 3 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 1 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 · 29°C |
| Coldest month | Feb 2025 · -10°C | Jan · -10°C |
| Wettest month | Jul 2025 · 253 mm | May · 137 mm |
| Windiest month | Mar 2025 · 27 km/h | Apr · 27 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 | -1°C / -10°C | -6°C / -15°C | 7days (36 mm) Good | 5.7h Fair | 74% Muggy | 2.6 Moderate | Poor | View Details |
| February | 2°C / -8°C | -3°C / -14°C | 6days (32 mm) Good | 7.5h Good | 70% Muggy | 3.7 Moderate | Poor | View Details |
| March | 11°C / 0°C | 6°C / -5°C | 10days (79 mm) Wet | 7.8h Good | 66% Muggy | 4.6 Moderate | Poor | View Details |
| April | 16°C / 5°C | 13°C / 1°C | 11days (90 mm) Wet | 9h Good | 62% Muggy | 5.6 High | Fair | View Details |
| May best | 22°C / 12°C | 21°C / 9°C | 13days (137 mm) Wet | 9.7h Good | 67% Muggy | 7 High | Excellent | View Details |
| June best | 28°C / 18°C | 30°C / 18°C | 10days (103 mm) Wet | 12.2h Excellent | 67% Muggy | 7.2 Very High | Excellent | View Details |
| July best | 29°C / 20°C | 32°C / 21°C | 8days (96 mm) Wet | 12.1h Excellent | 73% Muggy | 7.3 Very High | Excellent | View Details |
| August best | 28°C / 19°C | 30°C / 19°C | 8days (76 mm) Wet | 11.3h Excellent | 71% Muggy | 6.7 High | Excellent | View Details |
| September best | 26°C / 16°C | 26°C / 15°C | 8days (90 mm) Wet | 9.8h Good | 68% Muggy | 5.7 High | Excellent | View Details |
| October | 18°C / 8°C | 15°C / 5°C | 8days (93 mm) Wet | 7.7h Good | 63% Muggy | 4 Moderate | Good | View Details |
| November | 10°C / 1°C | 6°C / -4°C | 6days (46 mm) Good | 6.5h Fair | 67% Muggy | 2.7 Moderate | Poor | View Details |
| December | 3°C / -5°C | -2°C / -11°C | 6days (37 mm) Good | 5.8h Fair | 71% Muggy | 2.1 Moderate | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Ames 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 Ames, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Ames is July, with average daytime highs of 29°C (84°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Ames is January, with average overnight lows of -10°C (15°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Ames is May, averaging 137mm of precipitation across 13 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Ames runs through May, April, March, June, with the heaviest rainfall in May. Based on 10-year averages for Ames.
Ames receives approximately 105 sunshine hours per year. The sunniest month is June with around 12 hours. Based on climate data for Ames.
The least favorable months to visit Ames are January, February, March, December, primarily due to very cold temperatures. For the best conditions, consider May, June, July, August, September instead.
The annual average UV index in Ames is 5, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Ames is 68%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Ames receives snow. Months with snowfall average 5 snow days and 8 cm (3 in) of accumulation, with about 17 frost days during winter.
Average wind speeds in Ames are 22 km/h (14 mph). The windiest month is April with peak winds reaching 27 km/h (17 mph) (gusts up to 50 km/h / 31 mph).
Ames averages 5 clear-sky days per month with overall cloud cover around 54%. The clearest skies occur in September.
The annual average dew point in Ames is 5°C (41°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Ames 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 Ames ranges from 3°C (37°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 Ames. It earns a climate score of 8.7/10 with Excellent.
For June in Ames, pack Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+), Sun hat. With average highs of 28°C (83°F) and 10 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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