Kansas City Weather
A month-by-month look at temperature, rainfall and what to pack in Kansas City. The annual average is 18°C high / 8°C low — hottest in July (32°C) and coldest in January (-7°C).
Kansas City Weather at a Glance
As of 2026A quick summary of Kansas City's year-round climate and the best time to visit.
- Annual average
- 18° / 8°
- Best time to visit
- May, June, September
- Hottest month
- July (32°C)
- Coldest month
- January (-7°C)
- Wettest month
- May (130mm)
- Driest month
- January (30mm)
As of 2026, Kansas City's weather averages 18°C high / 8°C low across the year, and the best time to visit for stable temperatures, rainfall and crowds is May, June, September. The hottest month is July (32°C), the coldest is January (-7°C), and the wettest is May (130mm).
When is the best time to visit Kansas City?
May is genuinely Kansas City's sweet-spot month. Daytime 24°C / 75°F + long daylight (sunset 20:35) + Plaza walking + Royals home games + Worlds of Fun fully operational + Kansas Speedway NASCAR Cup Series race weekend mid-May + atmospheric warm-but-not-yet-humid weather. The canonical 'I want pre-summer + Royals + Sporting KC + atmospheric Plaza' window. Kansas Speedway NASCAR race weekend mid-May drives +40-60% hotel surge for a 3-day window — book 4-6 weeks ahead. Royals home games drive +15-25%. Sporting KC home games + atmospheric Children's Mercy Park. Thunderstorm + tornado-warning season continues — 13 rainy days/month + afternoon thunderstorm contingency normal. May is the peak month for Tornado Alley severe weather in Kansas City specifically.
June is the year's peak daylight month — sunset 20:55 in late June supports 18:00-20:30 atmospheric Plaza walks + Plaza Lights illumination (no, that's November-January) + Plaza fountain + atmospheric outdoor cafe sitting. The canonical 'I want full summer + long daylight + Royals + atmospheric Plaza' window. Royals home games drive +15-25% surge. Kansas City Pride parade + atmospheric Crossroads Pride celebration mid-June adds atmospheric weekend energy. Climate-change has added 32-35°C heatwave days (3-5 days per typical June, up from 0-2 days a decade ago) — KC's humid continental climate makes peak summer uncomfortable but pleasant outdoor walking still works at 84°F early morning + late evening hours. Humidity climbing to 70% — afternoon thunderstorm contingency normal.
September is genuinely Kansas City's year-second sweet spot alongside May — humidity finally breaking mid-month + 26°C / 79°F pleasant walking weather + Chiefs NFL regular season opener mid-month (MASSIVE city celebration) + Kansas Speedway NASCAR Cup Series race weekend mid-September + atmospheric Plaza Art Fair late month. The canonical 'late summer + autumn transition + Chiefs football return + Mosel-no-wait — Royals stretch run' window. Chiefs NFL regular season opener weekend mid-September drives MASSIVE hotel surge +50-80% across downtown — book 6-8 weeks ahead. Kansas Speedway race weekend mid-September another +40-60% surge. Most travelers underestimate the Chiefs-NFL-season-opener atmospheric weight — the entire city operates on Chiefs game pacing from September through January, with 'Red Friday' Chiefs-color wear becoming citywide. Visitors during Chiefs season see the city literally glow red.
What is Kansas City weather like month by month?
Tap any month for a detailed guide with what to wear, sunrise/sunset and air quality.
| Month | High/Low | Rain | Rainy days | Crowds | |
|---|---|---|---|---|---|
| January | 4° / -7° | 30mm | 6 | Quiet | Details → |
| February | 7° / -4° | 35mm | 6 | Quiet | Details → |
| March | 13° / 1° | 60mm | 9 | Moderate | Details → |
| April | 19° / 7° | 95mm | 11 | Moderate | Details → |
| May | 24° / 13° | 130mm | 11 | Busy | Details → |
| June | 29° / 18° | 130mm | 10 | Busy | Details → |
| July | 32° / 21° | 95mm | 8 | Busy | Details → |
| August | 31° / 20° | 95mm | 8 | Busy | Details → |
| September | 26° / 15° | 95mm | 8 | Very busy | Details → |
| October | 19° / 8° | 90mm | 8 | Busy | Details → |
| November | 11° / 2° | 50mm | 7 | Moderate | Details → |
| December | 5° / -4° | 35mm | 6 | Busy | Details → |
What should you wear in Kansas City?
Spring blossoming — daytime 19°C / 66°F, nighttime 7°C / 45°F. Light jacket + sweater + walking-comfortable shoes + compact umbrella. Royals MLB season opens. Worlds of Fun opens late April. Tornado-warning season peaks April-May.
Year's hottest month — daytime 32°C / 90°F + nighttime 21°C / 70°F + 70-80% humidity producing heat-index 38°C+. T-shirt + light breathable layers + sunglasses + wide-brim hat + SPF 30 sunscreen + reusable water bottle. Outdoor walking 11:00-15:00 punishing — plan indoor museum AC for midday.
Early autumn peak — daytime 19°C / 66°F, nighttime 8°C / 46°F. Light jacket + sweater + scarf + walking-comfortable shoes + compact umbrella. Peak autumn foliage late month at Nelson-Atkins + Plaza + atmospheric Loose Park.
Still cold but with marginally more sunshine — daytime 7°C / 45°F, nighttime -4°C / 25°F. Winter coat + scarf + gloves + waterproof boots + warm layers. Valentine's Day Plaza + Bluestem + American Restaurant atmospheric anniversary peak.
Kansas City Weather FAQ
What is the best time to visit Kansas City? +
For weather, May, June, September are the most comfortable months. Highs sit around 24°C with relatively stable rainfall and crowds.
What are the hottest and coldest months in Kansas City? +
The hottest month is July with an average high of 32°C, and the coldest is January with an average low of -7°C. The annual average is 18°C high / 8°C low.
When does it rain most in Kansas City? +
The wettest month is May (130mm over about 11 rainy days) and the driest is January (30mm). Total annual rainfall is roughly 940mm.
What should I pack for Kansas City? +
Spring (Mar–May) averages 19/7°C — Spring blossoming — daytime 19°C / 66°F, nighttime 7°C / 45°F. Light jacket + sweater + walking-comfortable shoes + compact umbrella. Royals MLB season opens. Worlds of Fun opens late April. Tornado-warning season peaks April-May. Summer (Jun–Aug) averages 31/20°C — Year's hottest month — daytime 32°C / 90°F + nighttime 21°C / 70°F + 70-80% humidity producing heat-index 38°C+. T-shirt + light breathable layers + sunglasses + wide-brim hat + SPF 30 sunscreen + reusable water bottle. Outdoor walking 11:00-15:00 punishing — plan indoor museum AC for midday. Autumn (Sep–Nov) averages 19/8°C — Early autumn peak — daytime 19°C / 66°F, nighttime 8°C / 46°F. Light jacket + sweater + scarf + walking-comfortable shoes + compact umbrella. Peak autumn foliage late month at Nelson-Atkins + Plaza + atmospheric Loose Park. Winter (Dec–Feb) averages 5/-5°C — Still cold but with marginally more sunshine — daytime 7°C / 45°F, nighttime -4°C / 25°F. Winter coat + scarf + gloves + waterproof boots + warm layers. Valentine's Day Plaza + Bluestem + American Restaurant atmospheric anniversary peak.
What is the weather in Kansas City this month (June)? +
June averages 29°C high / 18°C low with 130mm rainfall over about 10 rainy days. Crowds are busy and prices are high.
Keep Planning Your Kansas City Trip
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.