Worcester, MA weather in September
In September, Worcester sees highs around 71°F and lows around 53°F: mild, with some rain. Rain falls on about 10 days. Great for outdoor plans.
- Normal high
- 71°F
- Normal low
- 53°F
- Wet days
- 10
- 4.2 in total
- Muggy days
- 3
- dew point 65°F+
How September changes from start to finish
| September 1 | September 30 | |
|---|---|---|
| Normal high | 76°F | 65°F |
| Normal low | 58°F | 48°F |
| Chance of a wet day | 30% | 35% |
| Sunrise / sunset | 6:12 am / 7:21 pm | 6:43 am / 6:31 pm |
| Daylight | 13.2 h | 11.8 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).
A typical September day
- 6 am61°Fdew point 55°F
- 9 am67°Fdew point 55°F
- Noon70°Fdew point 55°F
- 3 pm71°Fdew point 55°F
- 6 pm67°Fdew point 55°F
- 9 pm64°Fdew point 55°F
NOAA hourly normals (local standard time) from Boston Logan Intl Airport (41 mi away); average wind 10 mph; clear or few clouds in 32% of daytime hours, mostly cloudy or overcast in 48%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F16 of 30
- Hot dayshigh 90°F or more0 of 30
- Muggy daysdaily mean dew point 65°F or more3 of 30
- Wet daysat least 0.01 in of rain or melted snow10 of 30
- Notable rainat least 0.10 in6 of 30
- Freezing nightslow 32°F or below0 of 30
- Snow on the groundsnow depth 1 in or more0 of 30
Average days per September, counted from daily records for each year 1991-2020.
Rain in September
Normal precipitation is 4.2 in; a dry September brings about 2.4 in and a wet one about 5.8 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more.
How September varies from year to year
- Warmest September, 1991-20202015: average high 76°F
- Coolest September1994: average high 67°F
- Wettest September2008: 9.2 in
- Driest September1997: 1.4 in
- Highest reading91°F (September 8, 2007)
- Lowest reading30°F (September 30, 1992)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
September compared with August and October
| August | September | October | |
|---|---|---|---|
| Normal high | 78°F | 71°F | 59°F |
| Normal low | 61°F | 53°F | 42°F |
| Wet days | 10 | 10 | 12 |
| Comfortable days | 13 | 16 | 7 |
| Daylight | 13.8 h | 12.5 h | 11.1 h |
Highs change by -7°F from August and -12°F into October.
Nearby alternatives in September
- Warmer: Springfield, MA42 mi · high 76°F · 9 wet days
How Worcester ranks in September
- Normal high341st warmest of 378 cities; 8th of 9 in Massachusetts
- Wet days284th driest of 378
- Comfortable days47th most of 342
What to pack for Worcester in September
- A rain jacket or umbrella – rain on about 10 days
Heating and cooling
September has 139 heating degree days and 47 cooling degree days (base 65°F), 3% of the year's total heating and cooling demand.
Questions
How hot is Worcester in September?
The normal high is 71°F and the normal low is 53°F. From 1991 to 2020 the hottest September reading was 91°F (September 8, 2007).
Does it rain a lot in Worcester in September?
About 10 days in September have at least 0.01 in of precipitation, and the normal total is 4.2 in. The wettest September in 1991-2020 was in 2008 (9.2 in); the driest was in 1997 (1.4 in).
Is September a good time to visit Worcester?
September ranks 3rd of 12 months on our comfort score for Worcester (70 out of 100). It has about 16 comfortable days. The best months are May, June and September.
Where the numbers come from
- Temperature, rain, snowfall and frost dates: Worcester Rgnl Airport (USW00094746), 3.7 mi W of the city center, 1,000 ft (516 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Snow depth: Northbridge 2 (USC00195524), 12 mi SSE of the city center, 315 ft (169 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: Boston Logan Intl Airport (USW00014739), 41 mi E of the city center, 12 ft (472 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Orange Municipal Airport (725085-54756), 33 mi NW of the city center, 544 ft (60 ft higher than the city). Hourly observations, 1991-2020.