Common information
- Country
- United States
- Population
- 12 307
Weather, climate, temperature by months in Princeton
| Season | Autumn | Winter | Spring | Summer | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Year |
| Record high, °C | 39 | 35 | 28 | 24 | 23 | 25 | 31 | 35 | 36 | 38 | 41 | 39 | 41 |
| Average high, °C | 25 | 19 | 12 | 6 | 4 | 5 | 10 | 17 | 23 | 27 | 30 | 29 | 17 |
| Average temperature, °C | 19 | 13 | 7 | 1 | -1 | 0 | 5 | 10 | 16 | 21 | 24 | 23 | 11 |
| Average low, °C | 13 | 7 | 2 | -3 | -5 | -5 | -1 | 4 | 9 | 15 | 17 | 17 | 6 |
| Record low, °C | -2 | -7 | -18 | -24 | -27 | -24 | -17 | -16 | -2 | 2 | 6 | 4 | -27 |
| Snow, days | 0 | 0 | 0 | 2 | 3 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 11 |
| Fog, days | 5 | 3 | 1 | 4 | 2 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 19 |
| Thunderstorms, days | 5 | 1 | 0 | 1 | 0 | 0 | 0 | 2 | 0 | 6 | 5 | 6 | 26 |
| Snowfall, cm. | 0 | 0 | 0 | 6 | 8 | 10 | 4 | 1 | 0 | 0 | 0 | 0 | 28 |
| Average precipitation, mm. | 112 | 92 | 98 | 99 | 96 | 75 | 99 | 99 | 118 | 95 | 135 | 107 | 1225 |
| Relative humidity, % | 72 | 69 | 65 | 62 | 60 | 59 | 59 | 59 | 65 | 69 | 68 | 70 | 65 |
| Wind speed, km/h | 11 | 11 | 12 | 13 | 14 | 14 | 15 | 14 | 12 | 11 | 10 | 10 | 12 |
| Day Length, часов | 13 | 12 | 10 | 10 | 10 | 11 | 13 | 14 | 15 | 16 | 15 | 14 | 13 |
| Growing degree-day, °C | 474 | 180 | 50 | 8 | 3 | 3 | 26 | 120 | 339 | 600 | 766 | 711 | 3280 |
| Solar radiation, global, Mj/m2 | 15 | 11 | 8 | 6 | 7 | 10 | 13 | 17 | 19 | 20 | 20 | 18 | 14 |