
Utrechtse Heuvelrug National Park
- Annual mean
- 9.9 °C
- Warmest month
- July
- Wettest month
- December
Atmospheric data for a representative site covering annual daylight, wind speed, and humidity trends.
The climate profile for Kolland en Overlangbroek presents twelve-month averages based on NASA POWER records from 1991 to 2020. Measurements include average minimum, mean, and maximum temperatures alongside daily precipitation rates, relative humidity, and wind speed at a representative coordinate. This data illustrates long-term atmospheric patterns for the protected area rather than current weather or seasonal forecasts.

Long-term monthly temperature ranges and average daily precipitation rates across twelve months
Compare average temperature bounds, precipitation rates, wind speed, relative humidity, and daylight hours
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | 2.1 °C-7.5° to 10.8° | 2.3 mm/day | 92.6% | 5.7 m/s | 8.1 hours |
| February | 2.7 °C-6.2° to 11.8° | 2.1 mm/day | 89.7% | 5.5 m/s | 9.6 hours |
| March | 5.6 °C-3.6° to 16.8° | 1.9 mm/day | 84.5% | 5.1 m/s | 11.6 hours |
| April | 9.3 °C-1.6° to 21.9° | 1.4 mm/day | 78.8% | 4.4 m/s | 13.7 hours |
| May | 13.2 °C2.3° to 25.3° | 1.9 mm/day | 76.7% | 4.4 m/s | 15.5 hours |
| June | 16.1 °C6.5° to 28.3° | 2.2 mm/day | 76.7% | 4.2 m/s | 16.4 hours |
| July | 18.1 °C9.1° to 29.4° | 2.4 mm/day | 77.3% | 4 m/s | 16 hours |
| August | 17.8 °C8.8° to 28.9° | 2.4 mm/day | 78.7% | 3.9 m/s | 14.4 hours |
| September | 14.5 °C6° to 24.7° | 2.2 mm/day | 82% | 4.2 m/s | 12.3 hours |
| October | 10.3 °C0.7° to 20.5° | 2.3 mm/day | 86.3% | 4.8 m/s | 10.3 hours |
| November | 6 °C-2.3° to 15.2° | 2.4 mm/day | 92.1% | 4.9 m/s | 8.5 hours |
| December | 2.9 °C-5.7° to 11.4° | 2.6 mm/day | 93.7% | 5.3 m/s | 7.6 hours |
See two months side by side and how much they differ. Both use the same 1991–2020 climate normals and NASA POWER data point as the table above, so they show typical conditions, not a forecast.
Comparing long term monthly averages for temperature, precipitation, wind, humidity, and daylight duration
Interactive climate map
Open the climate map to compare monthly temperature, precipitation, and other averages.
Examine long-term monthly temperature, precipitation, wind, and daylight records across diverse regional landscapes.





Examine the detailed geographic boundaries and ecological features of Kolland en Overlangbroek. This MoriAtlas entry provides a structured look at the terrain, groundwater seepage, and woodland types that define this significant Dutch estate landscape. Use these resources to better understand how local topography shapes protected areas in the Kromme Rijn valley.