United States
Weather in Nampa through the year
Measured at the weather station Payette, 66 km away.
| Month | Average high | Coolest to warmest day |
|---|---|---|
| January | 4.5 °C | 3.5 °C – 6.3 °C |
| February | 8.6 °C | 6.5 °C – 10.9 °C |
| March | 14.5 °C | 11.4 °C – 16.5 °C |
| April | 19.1 °C | 16.7 °C – 21.5 °C |
| May | 23.9 °C | 21.6 °C – 26.4 °C |
| June | 28.2 °C | 26.6 °C – 31.2 °C |
| July | 33.6 °C | 31.4 °C – 34.5 °C |
| August | 32.5 °C | 30.2 °C – 34.3 °C |
| September | 26.8 °C | 23.9 °C – 30.1 °C |
| October | 19.7 °C | 15.4 °C – 23.7 °C |
| November | 11.3 °C | 7.4 °C – 15.1 °C |
| December | 4.8 °C | 3.4 °C – 7.1 °C |