Peak sun hours in Missouri (2026)
Missouri averages 4.8 peak sun hours per day — 2% above the US average of 4.7. In practical terms, every 1 kW of solar there produces about 1,402 kWh of electricity a year.
Peak sun hours/day
4.8
Annual kWh per kW
1,402
vs US average
+2%
What this means for your system
To produce a given amount of electricity, you need fewer panels where there are more peak sun hours. At 4.8 hours, a typical home in Missouri needs a system sized to its usage and local sun — see exact numbers on the Missouri solar cost page or work it out with our sizing guide.
Peak sun hours by city in Missouri
Sunlight varies within Missouri. Here are city-level figures from multi-year irradiance data.
| City | Peak sun hours/day | Annual kWh per kW |
|---|---|---|
| Kansas City | 4.44 | 1,296 |
| St. Louis | 4.34 | 1,267 |
Peak sun hours in Missouri: FAQ
How many peak sun hours does Missouri get?
Missouri averages about 4.8 peak sun hours per day — 2% above the US average. That works out to roughly 1,402 kWh of electricity per year for every 1 kW of solar installed.
Is Missouri good for solar based on sunlight?
Sunlight is only part of the picture. Missouri's 4.8 peak sun hours help production, but your electricity rate and incentives matter just as much. See the full economics on our Missouri solar cost page.