UTC Offset
UTC-05:00
Grain Valley, United States Snapshot 2026
Where is Grain Valley?
Grain Valley, United States
- Continent
- Americas
- Country
- United States
- City
- Grain Valley
- Population
- 13.4K
- Elevation
- 242 m
- Coordinates
- 39.02°, -94.20°
Grain Valley is a city in United States with a population of approximately 13.4K. Average temperatures range from -4°C (24°F) in January to 31°C (88°F) in July. The best time to visit is April, May, June, September. The city sits at an elevation of 242 m above sea level.
Time in Grain Valley right now
Open full time & time zone page 13:18 18
Monday, June 15, 2026
IANA time zone
America/Chicago
Daylight saving
DST in effect
CST / CDT
Next DST change
November 1
backward -1h
Live weather in Grain Valley
Daylight in Grain Valley today
View full sunrise & sunset page Sunrise
Sunset
Day length
14h 53m
Climate normals for Grain Valley
Long-term monthly averages based on historical data.
January
Poor 
February
Poor March
Fair April best
Good May best
Excellent June best
Excellent July
Fair August
Good September best
Excellent October
Good November
Fair December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 4°C / -4°C | 0°C / -9°C | 7days (55 mm) Good | 6h Fair | 70% Muggy | 2.8 Moderate | Poor | View Details |
| February | 8°C / -2°C | 4°C / -7°C | 6days (37 mm) Good | 7.4h Good | 65% Muggy | 4 Moderate | Poor | View Details |
| March | 15°C / 4°C | 12°C / 0°C | 10days (93 mm) Wet | 7.6h Good | 65% Muggy | 5.2 High | Fair | View Details |
| April best | 19°C / 8°C | 18°C / 5°C | 10days (109 mm) Wet | 9.2h Good | 63% Muggy | 5.9 High | Good | View Details |
| May best | 24°C / 14°C | 25°C / 14°C | 14days (160 mm) Wet | 9.5h Good | 71% Muggy | 7.1 Very High | Excellent | View Details |
| June best | 30°C / 20°C | 33°C / 22°C | 10days (97 mm) Wet | 11.9h Excellent | 67% Muggy | 7.6 Very High | Excellent | View Details |
| July | 31°C / 22°C | 35°C / 25°C | 11days (117 mm) Wet | 11.8h Excellent | 70% Muggy | 7.6 Very High | Fair | View Details |
| August | 30°C / 21°C | 33°C / 23°C | 9days (98 mm) Wet | 11.1h Excellent | 71% Muggy | 7 High | Good | View Details |
| September best | 28°C / 18°C | 29°C / 19°C | 7days (67 mm) Good | 10h Excellent | 67% Muggy | 5.9 High | Excellent | View Details |
| October | 21°C / 11°C | 19°C / 9°C | 9days (93 mm) Wet | 8h Good | 64% Muggy | 4.4 Moderate | Good | View Details |
| November | 13°C / 4°C | 10°C / 0°C | 7days (58 mm) Good | 7h Good | 68% Muggy | 3 Moderate | Fair | View Details |
| December | 8°C / -1°C | 4°C / -5°C | 5days (38 mm) Good | 6.2h Fair | 69% Muggy | 2.4 Moderate | Poor | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 4°C / -4°C . Feb: 8°C / -2°C . Mar: 15°C / 4°C . Apr: 19°C / 8°C . May: 24°C / 14°C . Jun: 30°C / 20°C . Jul: 31°C / 22°C . Aug: 30°C / 21°C . Sep: 28°C / 18°C . Oct: 21°C / 11°C . Nov: 13°C / 4°C . Dec: 8°C / -1°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 55 mm. Feb: 37 mm. Mar: 93 mm. Apr: 109 mm. May: 160 mm. Jun: 97 mm. Jul: 117 mm. Aug: 98 mm. Sep: 67 mm. Oct: 93 mm. Nov: 58 mm. Dec: 38 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 70%. Feb: 65%. Mar: 65%. Apr: 63%. May: 71%. Jun: 67%. Jul: 70%. Aug: 71%. Sep: 67%. Oct: 64%. Nov: 68%. Dec: 69%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 19 km/h . Feb: 20 km/h . Mar: 21 km/h . Apr: 22 km/h . May: 18 km/h . Jun: 17 km/h . Jul: 14 km/h . Aug: 15 km/h . Sep: 15 km/h . Oct: 19 km/h . Nov: 19 km/h . Dec: 19 km/h .
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 8. Jul: UV 8. Aug: UV 7. Sep: UV 6. Oct: UV 4. Nov: UV 3. Dec: UV 2.
Frequently Asked Questions
Grain Valley has a population of approximately 13.4K.
The best months to visit Grain Valley are April, May, June, September, when temperatures are pleasant and rainfall is lower.
Grain Valley receives approximately 1022mm of rainfall annually across 105 rainy days.
Grain Valley is located in United States, in the Americas region.
Grain Valley sits at an elevation of 242 m (794 ft) above sea level.