Average annual temperature is 20.2 °C
Absolute maximum temperature: 40.3 °C
Absolute minimum temperature: -2.1 °C
Number of sunny days: 178 days
Number of rainy days: 187 days
Look at detailed online map of Lanham
* Weather data for Lanham United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 24.7 | 27.6 | 29.4 | 29.8 | 33.7 | 38.0 | 38.0 | 40.3 | 36.2 | 32.0 | 27.0 | 24.8 |
| Average daytime temperature (°C) | 17.9 | 20.8 | 22.8 | 24.7 | 29.3 | 33.2 | 34.7 | 37.7 | 32.8 | 26.7 | 19.9 | 16.8 |
| Average temperature (°C) | 12.7 | 14.8 | 16.6 | 18.4 | 22.8 | 26.4 | 28.0 | 30.6 | 26.4 | 20.2 | 14.1 | 11.0 |
| Average night temperature (°C) | 8.7 | 10.6 | 11.9 | 13.7 | 17.7 | 21.4 | 23.5 | 25.0 | 21.1 | 14.9 | 9.8 | 6.6 |
| Absolute minimum temperature (°C) | -0.4 | 0.0 | -2.1 | 7.7 | 10.9 | 18.9 | 20.1 | 20.5 | 17.3 | 7.9 | 1.0 | 0.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.4 | 11.1 | 12.0 | 13.0 | 13.8 | 14.2 | 14.0 | 13.3 | 12.4 | 11.4 | 10.6 | 10.1 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 6.7 | 7.3 | 8.8 | 8.9 | 10.8 | 11.3 | 11.2 | 11.7 | 10.8 | 9.2 | 6.9 | 7.8 |
| Precipitation (mm) | 179 | 133 | 146 | 142 | 80 | 98 | 127 | 51 | 33 | 42 | 60 | 89 |
| Sunny days | 14 | 9 | 15 | 13 | 14 | 5 | 8 | 18 | 17 | 25 | 18 | 22 |
| Rainy days | 17 | 19 | 16 | 17 | 17 | 25 | 23 | 13 | 13 | 6 | 12 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Lanham during the most sunny months:
The largest precipitation sum in Lanham is at