Average annual temperature is 14.7 °C
Absolute maximum temperature: 37.1 °C
Absolute minimum temperature: -8.9 °C
Number of sunny days: 173
Number of rainy days: 190
Number of snow days: 2
Average annual precipitation: 1293 mm
Look at detailed online map of Upper Marlboro
* Weather data for Upper Marlboro United States is based on climate observations for 2023 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 19.7 | 23.6 | 24.7 | 30.4 | 27.9 | 33.3 | 37.1 | 33.2 | 36.6 | 28 | 25.5 | 16.7 |
| Average daytime temperature (°C) | 11 | 12.5 | 13.9 | 22.1 | 22.5 | 27.7 | 31.4 | 29.8 | 26.5 | 21.6 | 13.9 | 11.1 |
| Average temperature (°C) | 6.5 | 7.3 | 7.8 | 15.4 | 16.6 | 21.2 | 25.4 | 24.1 | 20.9 | 15.6 | 8.1 | 6.4 |
| Average night temperature (°C) | 2.9 | 2.5 | 2.8 | 10.1 | 11.1 | 15.8 | 20.8 | 19.5 | 16.5 | 11 | 3.8 | 2.6 |
| Absolute minimum temperature (°C) | -3.4 | -8.9 | -3.8 | 2.1 | 5 | 11.5 | 17.9 | 14.6 | 10.3 | 5.1 | -5.6 | -3.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.2 | 11.3 | 12.6 | 13.8 | 14.7 | 14.9 | 14.9 | 14.2 | 13.1 | 11.8 | 10.6 | 9.7 |
| Daylight mean duration (h) | 9.8 | 10.8 | 12 | 13.2 | 14.3 | 14.8 | 14.6 | 13.7 | 12.5 | 11.2 | 10.1 | 9.5 |
| Daylight minimum duration (h) | 9.5 | 10.3 | 11.3 | 12.6 | 13.8 | 14.7 | 14.2 | 13.1 | 11.8 | 10.6 | 9.7 | 9.4 |
| Sunshine mean duration (h) | 6.3 | 7.3 | 8.3 | 10.3 | 10.8 | 11.7 | 11.9 | 10.8 | 8.9 | 9 | 8.1 | 6.6 |
| Precipitation (mm) | 80 | 65 | 70 | 177 | 47 | 143 | 164 | 84 | 166 | 48 | 60 | 189 |
| Sunny days | 14 | 13 | 17 | 17 | 14 | 13 | 6 | 10 | 14 | 16 | 22 | 17 |
| Rainy days | 17 | 13 | 14 | 13 | 17 | 17 | 25 | 21 | 16 | 15 | 8 | 14 |
The best time to visit Upper Marlboro during the most sunny months:
The largest precipitation sum in Upper Marlboro is at