| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 33°F | 46°F | 39°F | 11.2" |
| February | 33°F | 51°F | 41°F | 4.9" |
| March | 39°F | 57°F | 46°F | 10.0" |
| April | 40°F | 58°F | 47°F | 5.4" |
| May | 45°F | 65°F | 54°F | 9.8" |
| June | 49°F | 68°F | 57°F | 5.4" |
| July | 53°F | 78°F | 64°F | 3.9" |
| August | 51°F | 78°F | 63°F | 2.6" |
| September | 46°F | 69°F | 56°F | 3.2" |
| October | 43°F | 60°F | 50°F | 5.9" |
| November | 36°F | 48°F | 41°F | 9.2" |
| December | 33°F | 44°F | 38°F | 23.1" |
| Index | Parkwood | Washington | National |
| Air quality index | 18 | 36 | 42 |
| Pollution index | 1,081,430 | 4,541,850 | 2,726,193 |
| Measurement | Total |
| Days measured | 340 |
| Days with good air quality | 338 |
| Days with moderate air quality | 2 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Gig Harbor, WA | 10,280 | 18 | 64.0% |
| Keyport, WA | 339 | 18 | 64.0% |
| Southworth, WA | 2,300 | 18 | 64.0% |
| Allyn, WA | 2,504 | 18 | 64.0% |
| Gorst, WA | 255 | 18 | 64.0% |
| Parkwood, WA | 6,758 | 18 | 64.0% |
| City | Population | Air Quality Index | National Avg. |
| Allendale, NJ | 6,757 | 51 | 2.0% |
| Rumson, NJ | 6,757 | 51 | 2.0% |
| Lemoore Station, CA | 6,756 | 56 | 12.0% |
| Inniswold, LA | 6,760 | 45 | 10.0% |
| South Run, VA | 6,760 | 47 | 6.0% |
| Parkwood, WA | 6,758 | 18 | 64.0% |
Here are the best places to live in Washington
Top 10 cities in Washington with the best education system
Check out the 10 safest cities in Washington
10 best cities to buy a new house in Washington