
Mount Wilhelm
- Annual mean
- 17.4 °C
- Warmest month
- December
- Wettest month
- March
Long-term atmospheric patterns including temperature, precipitation, and wind speeds
Review twelve-month climate averages for Crater Mountain Wildlife Management Area based on NASA POWER measurements from 1991 to 2020. This data details mean temperatures, daily precipitation rates, relative humidity, wind speed, and daylight hours at a single representative location within the reserve. These figures provide a stable climatic baseline rather than current weather forecasts or seasonal predictions.
Small mean-temperature movement with a stronger March precipitation maximum
Compare average temperature bounds, daily precipitation rates, humidity, wind speed, and calculated daylight across the calendar year.
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | 19.9 °C15.1° to 26.3° | 6.6 mm/day | 87.8% | 0.7 m/s | 12.3 hours |
| February | 19.8 °C15.2° to 26° | 7.1 mm/day | 88.7% | 0.7 m/s | 12.2 hours |
| March | 19.6 °C15° to 25.7° | 7.3 mm/day | 89.4% | 0.7 m/s | 12 hours |
| April | 19.7 °C15.2° to 25.4° | 6.5 mm/day | 90.6% | 0.7 m/s | 11.9 hours |
| May | 19.6 °C15° to 25.2° | 4.2 mm/day | 90.3% | 0.7 m/s | 11.7 hours |
| June | 19.2 °C14.7° to 24.9° | 3.1 mm/day | 89.9% | 0.7 m/s | 11.6 hours |
| July | 18.8 °C14° to 24.6° | 2.1 mm/day | 88.6% | 0.8 m/s | 11.7 hours |
| August | 18.8 °C13.7° to 25.7° | 2 mm/day | 86.5% | 0.8 m/s | 11.8 hours |
| September | 19.5 °C13.8° to 26.9° | 2.8 mm/day | 84.1% | 0.8 m/s | 12 hours |
| October | 20 °C14.2° to 27.7° | 3.4 mm/day | 83.5% | 0.7 m/s | 12.2 hours |
| November | 20.2 °C14.9° to 27.6° | 5 mm/day | 84.8% | 0.7 m/s | 12.3 hours |
| December | 20.2 °C14.8° to 26.9° | 5.8 mm/day | 86.4% | 0.7 m/s | 12.4 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, humidity, wind, and daylight duration.
Interactive climate map
Open the climate map to compare monthly temperature, precipitation, and other averages.
Analyze monthly climate normals across diverse protected landscapes and geographic settings




Navigate the rugged central highlands and tropical forest ecosystems of Crater Mountain Wildlife Management Area. Examine the site's role as a biodiversity refuge and its place within the broader MoriAtlas database of Papua New Guinea protected lands.