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Boston

Massachusetts, United States · now 10°, light drizzle

September 1999

Average
23° / 15°
Warmest
Sep 3, 31°
Coldest
Sep 19, 10°
Rain
157.9 mm
Wet days
8 days (≥ 1 mm)
Against normal
2° warmer than normal
Day's low to highNormal: 1989–1998 averageRain
  1. Wed 113°26°+2°
  2. Thu 215°29°+5°
  3. Fri 315°31°+7°
  4. Sat 418°29°+5°
  5. Sun 519°25°+1°
  6. Mon 61.0 mm19°26°+3°
  7. Tue 70.9 mm22°28°+5°
  8. Wed 82.3 mm22°24°+1°
  9. Thu 90.5 mm22°28°+4°
  10. Fri 1051.7 mm21°23°−1°
  11. Sat 118.8 mm17°25°+2°
  12. Sun 1215°24°+1°
  13. Mon 1315°23°±0°
  14. Tue 1416°23°±0°
  15. Wed 157.7 mm18°23°±0°
  16. Thu 1668.4 mm17°22°±0°
  17. Fri 172.9 mm13°20°−2°
  18. Sat 1812°21°−1°
  19. Sun 1910°21°−1°
  20. Mon 2011°21°+1°
  21. Tue 210.1 mm14°22°+1°
  22. Wed 220.7 mm11°18°−2°
  23. Thu 230.2 mm11°20°+1°
  24. Fri 2414°23°+4°
  25. Sat 250.6 mm12°21°+2°
  26. Sun 2610°18°−1°
  27. Mon 2710°21°+3°
  28. Tue 2813°23°+4°
  29. Wed 2916°22°+3°
  30. Thu 3012.1 mm12°20°+1°

5 September in past years, 1990–1999

  1. 1999 Sun19°25°
  2. 1998 Sat16°24°
  3. 1997 Fri11°23°
  4. 1996 Thu20°30°
  5. 1995 Tue15°29°
  6. 1994 Mon32.8 mm11°14°
  7. 1993 Sun17°25°
  8. 1992 Sat13°21°
  9. 1991 Thu25.8 mm15°21°
  10. 1990 Wed13°27°

· Weather data by ECMWF (CC BY 4.0) via Open-Meteo · Historical weather: ERA5, Copernicus Climate Change Service, via Open-Meteo