Average annual temperature is 13.2 °C
Absolute maximum temperature: 39.8 °C
Absolute minimum temperature: -17.3 °C
Number of sunny days: 239 days
Number of rainy days: 115 days
Number of snow days: 11 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) | 11.6 | 16.6 | 23.0 | 29.7 | 31.9 | 35.6 | 38.2 | 39.8 | 36.3 | 32.6 | 22.8 | 16.1 |
| Average daytime temperature (°C) | 4.1 | 7.9 | 10.5 | 20.8 | 26.8 | 30.0 | 30.8 | 32.4 | 29.3 | 19.9 | 12.9 | 7.4 |
| Average temperature (°C) | -0.7 | 0.4 | 4.0 | 12.6 | 19.8 | 24.0 | 24.9 | 26.0 | 22.8 | 14.2 | 6.9 | 2.8 |
| Average night temperature (°C) | -4.3 | -4.6 | -0.7 | 6.4 | 13.8 | 18.2 | 19.9 | 20.8 | 17.1 | 9.4 | 2.3 | -0.7 |
| Absolute minimum temperature (°C) | -15.1 | -17.3 | -9.4 | -3.3 | 4.3 | 11.4 | 14.6 | 13.7 | 11.0 | -5.6 | -5.8 | -5.2 |
| 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 | 15.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.4 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.1 | 8.3 | 7.9 | 10.4 | 11.3 | 12.6 | 11.7 | 11.5 | 10.4 | 7.9 | 7.3 | 5.1 |
| Precipitation (mm) | 32 | 30 | 22 | 9 | 62 | 73 | 104 | 51 | 29 | 58 | 15 | 53 |
| Sunny days | 23 | 23 | 21 | 22 | 14 | 17 | 14 | 20 | 22 | 19 | 23 | 21 |
| Rainy days | 5 | 4 | 10 | 8 | 17 | 13 | 17 | 11 | 8 | 11 | 5 | 6 |
| Snow days | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 4 |
The best time to visit Lanham during the most sunny months:
The largest precipitation sum in Lanham is at