Martinsville weather in September: Martinsville, Virginia: normal highs, lows, rain and records for September
Martinsville in September has a normal high of 80°F and a normal low of 56°F, a daily mean of 68°F, falling from 84°F on the 1st to 76°F by the 30th. Measurable precipitation falls on 9 days in a normal September, 5.09 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 27°C and low of 13°C, 129 mm of precipitation in September.
- NOAA stationMartinsville Filter Plant
- Station IDUSC00445300
- Location36.70°N 79.87°W
- Elevation780 ft (238 m)
- Population13,834
- Jan 48° 24°
- Feb 52° 26°
- Mar 60° 32°
- Apr 71° 40°
- May 78° 50°
- Jun 85° 59°
- Jul 88° 64°
- Aug 86° 63°
- Sep 80° 56°
- Oct 71° 43°
- Nov 60° 32°
- Dec 51° 26°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Martinsville in September?
The normal high is 80°F and the normal low 56°F, for a daily mean of 67.6°F. September is 6.6°F cooler than August and 10.9°F warmer than October. September is the 4th warmest month of the year in Martinsville and the wettest. Across the month the normal high falls 8°F, from 84°F on September 1 to 76°F on September 30. From one year to the next September's mean temperature typically moves about 2.3°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 65°F and 70°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 30%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 84°F | 60°F | 30% | 20% |
| September 8 | 82°F | 58°F | 29% | 19% |
| September 15 | 80°F | 56°F | 29% | 20% |
| September 22 | 78°F | 53°F | 29% | 20% |
| September 30 | 76°F | 50°F | 29% | 20% |
Every day of September: normal high, low and chance of precipitation (warmest afternoon September 1, coldest night September 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| September 1 | 84°F | 60°F | 30% | 20% | 13 h |
| September 2 | 84°F | 60°F | 30% | 20% | 13 h |
| September 3 | 83°F | 60°F | 30% | 19% | 13 h |
| September 4 | 83°F | 59°F | 30% | 20% | 12 h 50 min |
| September 5 | 83°F | 59°F | 29% | 20% | 12 h 50 min |
| September 6 | 83°F | 59°F | 29% | 19% | 12 h 50 min |
| September 7 | 82°F | 59°F | 29% | 19% | 12 h 50 min |
| September 8 | 82°F | 58°F | 29% | 19% | 12 h 40 min |
| September 9 | 82°F | 58°F | 29% | 19% | 12 h 40 min |
| September 10 | 82°F | 58°F | 29% | 19% | 12 h 40 min |
| September 11 | 81°F | 57°F | 29% | 20% | 12 h 40 min |
| September 12 | 81°F | 57°F | 29% | 20% | 12 h 40 min |
| September 13 | 81°F | 57°F | 29% | 20% | 12 h 30 min |
| September 14 | 80°F | 56°F | 29% | 20% | 12 h 30 min |
| September 15 | 80°F | 56°F | 29% | 20% | 12 h 30 min |
| September 16 | 80°F | 56°F | 29% | 20% | 12 h 30 min |
| September 17 | 80°F | 55°F | 29% | 20% | 12 h 20 min |
| September 18 | 79°F | 55°F | 29% | 20% | 12 h 20 min |
| September 19 | 79°F | 55°F | 29% | 20% | 12 h 20 min |
| September 20 | 79°F | 54°F | 29% | 20% | 12 h 20 min |
| September 21 | 78°F | 54°F | 29% | 20% | 12 h 10 min |
| September 22 | 78°F | 53°F | 29% | 20% | 12 h 10 min |
| September 23 | 78°F | 53°F | 29% | 20% | 12 h 10 min |
| September 24 | 77°F | 53°F | 30% | 20% | 12 h 10 min |
| September 25 | 77°F | 52°F | 30% | 20% | 12 h 10 min |
| September 26 | 77°F | 52°F | 29% | 20% | 12 h |
| September 27 | 76°F | 51°F | 29% | 20% | 12 h |
| September 28 | 76°F | 51°F | 29% | 20% | 12 h |
| September 29 | 76°F | 50°F | 29% | 20% | 12 h |
| September 30 | 76°F | 50°F | 29% | 20% | 11 h 50 min |
- Normal high
- 80°FSeptember average
- Normal low
- 56°FSeptember average
- Precipitation
- 5.09 inmonth total
- Days with precipitation
- 90.01 inch or more
- Days at 90°F or more
- 2
- Daylight
- 13 h to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 27
- Days at 80°F or more
- 16
- Sunshine
- 75%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00445300; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Martinsville in September?
On a given September day the chance of 0.01 inch or more is 29% on average, highest around September 1 (30%). In all, 5.09 in falls on 9 days of a normal September, 2 of them with an inch or more.
In a normal September in Martinsville, 2 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00445300.
What are the records for September in Martinsville?
The warmest September temperature on this station's record (since 1937) is 101°F, on September 6, 1954; the coldest is 30°F, on September 28, 1947. The wettest September brought 13.10 in (1957).
The September mean against the 1991-2020 normal of 67.6°F: 2021 68.0°F (+0.4), 2022 67.2°F (−0.4), 2023 67.8°F (+0.2), 2024 68.5°F (+0.9), 2025 67.2°F (−0.4), 2026 71.8°F (+4.2). 4 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 68.0°F | +0.4°F | 4.65 in |
| 2022 | 67.2°F | −0.4°F | 5.91 in |
| 2023 | 67.8°F | +0.2°F | 3.31 in |
| 2024 | 68.5°F | +0.9°F | 9.12 in |
| 2025 | 67.2°F | −0.4°F | 3.44 in |
| 2026 | 71.8°F | +4.2°F | 1.26 in |
Source: records: ACIS, station USC00445300; recent months: ACIS, station USC00445300. Records and recent months use complete months only.
How does September in Martinsville compare across Virginia?
Across the 81 places PlainClimate covers in Virginia, September normal highs run from 73°F in Floyd to 85°F in Chesapeake; Martinsville's is 80°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Martinsville in August86°F by day, 63°F at night
- Martinsville in October71°F by day, 43°F at night
- Martinsville through the yearEvery month, frost dates, records and recent years
- Virginia in SeptemberThe statewide normal and the warmest and coolest places
- Chesapeake: Virginia's warmest Septembernormal high 85°F