Climateby Month

Greensboro, NC weather in September

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

September in Greensboro: warm and often humid, with some rain. Highs 80°F, lows 62°F, rain on about 8 days.

Normal high
80°F
Normal low
62°F
Wet days
8
4.6 in total
Muggy days
10
dew point 65°F+

How September changes from start to finish

Normal values at the start and end of September
September 1September 30
Normal high84°F76°F
Normal low66°F56°F
Chance of a wet day28%27%
Sunrise / sunset6:50 am / 7:47 pm7:13 am / 7:04 pm
Daylight12.9 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 am63°Fdew point 60°F
  2. 9 am70°Fdew point 61°F
  3. Noon76°Fdew point 61°F
  4. 3 pm78°Fdew point 60°F
  5. 6 pm75°Fdew point 61°F
  6. 9 pm69°Fdew point 62°F

NOAA hourly normals (local standard time) from Piedmont Triad Intl Airport (9 mi away); average wind 6 mph.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F8 of 30
  • Hot dayshigh 90°F or more3 of 30
  • Muggy daysdaily mean dew point 65°F or more10 of 30
  • Wet daysat least 0.01 in of rain or melted snow8 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 4.6 in; a dry September brings about 2.3 in and a wet one about 7.1 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, 1991-20202019: average high 87°F
  • Coolest September2000: average high 75°F
  • Wettest September1996: 10.8 in
  • Driest September2005: 0.2 in
  • Highest reading95°F (September 12, 2019)
  • Lowest reading41°F (September 26, 2001)

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 high87°F80°F71°F
Normal low68°F62°F49°F
Wet days1088
Comfortable days1817
Daylight13.5 h12.4 h11.3 h

Highs change by -7°F from August and -9°F into October.

Nearby alternatives in September

How Greensboro ranks in September

  • Normal high192nd warmest of 378 cities; 8th of 10 in North Carolina
  • Wet days208th driest of 378
  • Comfortable days175th most of 342

What to pack for Greensboro in September

  • A rain jacket or umbrella – rain on about 8 days

Heating and cooling

September has 22 heating degree days and 200 cooling degree days (base 65°F), 4% of the year's total heating and cooling demand.

Questions

How hot is Greensboro in September?

The normal high is 80°F and the normal low is 62°F. From 1991 to 2020 the hottest September reading was 95°F (most recently on September 12, 2019).

Does it rain a lot in Greensboro in September?

About 8 days in September have at least 0.01 in of precipitation, and the normal total is 4.6 in. The wettest September in 1991-2020 was in 1996 (10.8 in); the driest was in 2005 (0.2 in).

Is September a good time to visit Greensboro?

September ranks 5th of 12 months on our comfort score for Greensboro (58 out of 100). It has about 8 comfortable days and about 3 days at 90°F or hotter. The best months are April and October.

Where the numbers come from

  • Temperature, rain, snowfall, snow depth, frost dates and humidity and wind by hour: Piedmont Triad Intl Airport (USW00013723), 8.6 mi WNW of the city center, 890 ft (67 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Piedmont Triad International Airport (723170-13723), 8.6 mi WNW of the city center, 902 ft (79 ft higher than the city). Hourly observations, 1991-2020.
  • Not available for this location: cloud cover (no station close enough or similar enough in elevation).