Climateby Month

Morgantown, WV weather in September

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

September in Morgantown: mild, with frequent rain. Highs 77°F, lows 56°F, about 10 wet days. A good month for most outdoor plans.

Normal high
77°F
Normal low
56°F
Wet days
10
3.4 in total
Muggy days
4
dew point 65°F+

How September changes from start to finish

Normal values at the start and end of September
September 1September 30
Normal high81°F72°F
Normal low60°F51°F
Chance of a wet day32%35%
Sunrise / sunset6:48 am / 7:51 pm7:15 am / 7:04 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 am66°Fdew point 57°F
  3. Noon73°Fdew point 57°F
  4. 3 pm75°Fdew point 56°F
  5. 6 pm72°Fdew point 56°F
  6. 9 pm65°Fdew point 57°F

NOAA hourly normals (local standard time) from Morgantown Hart Fld (2 mi away); average wind 4 mph; clear or few clouds in 46% of daytime hours, mostly cloudy or overcast in 43%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F13 of 30
  • Hot dayshigh 90°F or more1 of 30
  • Muggy daysdaily mean dew point 65°F or more4 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 3.4 in; a dry September brings about 2.1 in and a wet one about 4.3 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.

How September varies from year to year

  • Warmest September, 1991-20202016: average high 83°F
  • Coolest September2006: average high 72°F
  • Wettest September2018: 9.0 in
  • Driest September2007: 0.7 in
  • Highest reading95°F (September 14, 1998)
  • Lowest reading33°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

AugustSeptemberOctober
Normal high83°F77°F66°F
Normal low63°F56°F45°F
Wet days111011
Comfortable days51314
Daylight13.7 h12.4 h11.2 h

Highs change by -6°F from August and -11°F into October.

How Morgantown ranks in September

  • Normal high243rd warmest of 378 cities; 3rd of 4 in West Virginia
  • Wet days323rd driest of 378
  • Comfortable days126th most of 342

What to pack for Morgantown in September

  • A rain jacket or umbrella – rain on about 10 days

Heating and cooling

September has 66 heating degree days and 111 cooling degree days (base 65°F), 3% of the year's total heating and cooling demand.

Questions

How hot is Morgantown in September?

The normal high is 77°F and the normal low is 56°F. From 1991 to 2020 the hottest September reading was 95°F (most recently on September 14, 1998).

Does it rain a lot in Morgantown in September?

About 10 days in September have at least 0.01 in of precipitation, and the normal total is 3.4 in. The wettest September in 1991-2020 was in 2018 (9.0 in); the driest was in 2007 (0.7 in).

Is September a good time to visit Morgantown?

September ranks 3rd of 12 months on our comfort score for Morgantown (64 out of 100). It has about 13 comfortable days and about 1 day at 90°F or hotter. The best months are April and May.

Where the numbers come from

  • Temperature, rain, frost dates and humidity and wind by hour: Morgantown Hart Fld (USW00013736), 2.3 mi ENE of the city center, 1,240 ft (352 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Snowfall: Lake Lynn (USC00465002), 8.2 mi NE of the city center, 900 ft . NOAA normals and daily records, 1991-2020.
  • Snow depth: Grays Landing (USC00363451), 11 mi N of the city center, 800 ft (88 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Cloud cover: Pittsburgh Allegheny Co Airport (USW00014762), 50 mi N of the city center, 1,248 ft (360 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Mgtn Rgnl-W L B Hart Fd Airport (724176-13736), 2.3 mi NE of the city center, 1,226 ft (338 ft higher than the city). Hourly observations, 1991-2020.