Climateby Month

Providence, RI weather in September

NOAA 1991-2020 normals and daily records · Providence all year

Providence is mild in September, with some rain: highs average 75°F and nights drop to about 57°F. Expect about 9 wet days. A good month for most outdoor plans.

Normal high
75°F
Normal low
57°F
Wet days
9
4.2 in total
Muggy days
5
dew point 65°F+

How September changes from start to finish

Normal values at the start and end of September
September 1September 30
Normal high80°F70°F
Normal low61°F51°F
Chance of a wet day28%32%
Sunrise / sunset6:11 am / 7:19 pm6:41 am / 6:29 pm
Daylight13.1 h11.8 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

  1. 6 am59°Fdew point 55°F
  2. 9 am67°Fdew point 57°F
  3. Noon72°Fdew point 56°F
  4. 3 pm73°Fdew point 56°F
  5. 6 pm67°Fdew point 57°F
  6. 9 pm63°Fdew point 57°F

NOAA hourly normals (local standard time) from Providence T F Green Airport (7 mi away); average wind 8 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 more1 of 30
  • Muggy daysdaily mean dew point 65°F or more5 of 30
  • Wet daysat least 0.01 in of rain or melted snow9 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 2.6 in and a wet one about 5.2 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 80°F
  • Coolest September1994: average high 71°F
  • Wettest September2008: 11.0 in
  • Driest September2014: 0.7 in
  • Highest reading97°F (September 8, 2015)
  • Lowest reading36°F (September 30, 2000)

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

AugustSeptemberOctober
Normal high82°F75°F64°F
Normal low64°F57°F45°F
Wet days9910
Comfortable days61612
Daylight13.8 h12.5 h11.1 h

Highs change by -7°F from August and -11°F into October.

Nearby alternatives in September

How Providence ranks in September

  • Normal high289th warmest of 378 cities; 2nd of 2 in Rhode Island
  • Wet days261st driest of 378
  • Comfortable days60th most of 342

What to pack for Providence in September

  • A rain jacket or umbrella – rain on about 9 days

Heating and cooling

September has 71 heating degree days and 91 cooling degree days (base 65°F), 3% of the year's total heating and cooling demand.

Questions

How hot is Providence in September?

The normal high is 75°F and the normal low is 57°F. From 1991 to 2020 the hottest September reading was 97°F (September 8, 2015).

Does it rain a lot in Providence in September?

About 9 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 (11.0 in); the driest was in 2014 (0.7 in).

Is September a good time to visit Providence?

September ranks 3rd of 12 months on our comfort score for Providence (69 out of 100). It has about 16 comfortable days and about 1 day at 90°F or hotter. The best month is May.

Where the numbers come from

  • Temperature, rain, snowfall, snow depth, frost dates and humidity and wind by hour: Providence T F Green Airport (USW00014765), 7.1 mi S of the city center, 60 ft (51 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Cloud cover: Boston Logan Intl Airport (USW00014739), 42 mi NNE of the city center, 12 ft . NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Theodore F Green State Airport (725070-14765), 7.0 mi S of the city center, 51 ft . Hourly observations, 1991-2020.