Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 25°F | 44°F | 34°F | 5.2" |
February | 26°F | 47°F | 35°F | 6.2" |
March | 35°F | 57°F | 45°F | 5.0" |
April | 44°F | 68°F | 55°F | 6.9" |
May | 52°F | 74°F | 62°F | 6.4" |
June | 60°F | 82°F | 71°F | 11.7" |
July | 64°F | 84°F | 73°F | 7.3" |
August | 63°F | 83°F | 72°F | 6.6" |
September | 56°F | 77°F | 65°F | 10.4" |
October | 45°F | 67°F | 55°F | 12.8" |
November | 34°F | 57°F | 44°F | 5.4" |
December | 30°F | 49°F | 38°F | 6.2" |
Index | Merrimac | Virginia | National |
Air quality index | 41 | 58 | 42 |
Pollution index | 243,902 | 1,561,881 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 306 |
Days with moderate air quality | 55 |
Days w/ poor A.Q. for sensitive groups | 4 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.020% |
Benzene | 0.003% |
Carbon Tetrachloride | 0.001% |
Lead | 0.020% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Shawsville, VA | 1,952 | 41 | 18.0% |
Fairlawn, VA | 2,656 | 41 | 18.0% |
Plum Creek, VA | 1,066 | 41 | 18.0% |
Snowville, VA | 65 | 41 | 18.0% |
Christiansburg, VA | 22,482 | 41 | 18.0% |
Merrimac, VA | 2,893 | 41 | 18.0% |
City | Population | Air Quality Index | National Avg. |
Palo Cedro, CA | 2,893 | 42 | 16.0% |
Deer Lodge, MT | 2,893 | 20 | 60.0% |
Saint-Alexis-des-Monts, QC | 2,893 | n/a | |
Yadkinville, NC | 2,892 | 45 | 10.0% |
Bedford Hills, NY | 2,892 | 43 | 14.0% |
Merrimac, VA | 2,893 | 41 | 18.0% |