| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 33°F | 49°F | 40°F | 4.9" |
| February | 34°F | 53°F | 43°F | 4.3" |
| March | 37°F | 58°F | 47°F | 5.0" |
| April | 38°F | 63°F | 50°F | 2.6" |
| May | 43°F | 70°F | 56°F | 2.2" |
| June | 47°F | 76°F | 61°F | 1.2" |
| July | 51°F | 86°F | 68°F | 0.4" |
| August | 51°F | 87°F | 68°F | 0.3" |
| September | 47°F | 80°F | 62°F | 1.2" |
| October | 42°F | 66°F | 53°F | 3.6" |
| November | 37°F | 55°F | 45°F | 6.0" |
| December | 32°F | 48°F | 39°F | 6.7" |
| Index | Trainsong | Eugene | Oregon |
| Air quality index | 38 | 38 | 32 |
| Pollution index | 3,310,060 | 3,310,060 | 7,156,356 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 254 |
| Days with moderate air quality | 103 |
| Days w/ poor A.Q. for sensitive groups | 8 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.050% |
| Carbon Tetrachloride | 0.020% |
| Lead | 0.020% |
| Mercury | 0.005% |
| City | Population | Air Quality Index | National Avg. |
| Junction City, OR | 6,140 | 38 | 24.0% |
| Veneta, OR | 5,010 | 38 | 24.0% |
| Coburg, OR | 1,384 | 38 | 24.0% |
| Creswell, OR | 5,445 | 38 | 24.0% |
| Harrisburg, OR | 3,852 | 38 | 24.0% |
| Eugene, OR | 170,457 | 38 | 24.0% |
| City | Population | Air Quality Index | National Avg. |
| Sherbrooke, QC | 170,686 | n/a | |
| Cary, NC | 169,177 | 46 | 8.0% |
| Salem, OR | 171,806 | 32 | 36.0% |
| Pembroke Pines, FL | 171,979 | 41 | 18.0% |
| Peoria, AZ | 172,109 | 74 | 48.0% |
| Eugene, OR | 170,457 | 38 | 24.0% |
Here are the best places to live in Oregon
10 Best cities in Oregon for employment
Top 10 cities in Oregon with the best education system
See the best places to live in & around Eugene