Blacksburg weather in September: Blacksburg, Virginia: normal highs, lows, rain and records for September
Blacksburg in September has a normal high of 76°F and a normal low of 53°F, a daily mean of 64°F, falling from 80°F on the 1st to 71°F by the 30th. Measurable precipitation falls on 9 days in a normal September, 3.45 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 24°C and low of 12°C, 88 mm of precipitation in September.
- NOAA stationBlacksburg Nwso
- Station IDUSC00440766
- Location37.20°N 80.41°W
- Elevation2,103 ft (641 m)
- From the center2 miles
- Population45,452
- Jan 42° 22°
- Feb 45° 24°
- Mar 53° 30°
- Apr 64° 39°
- May 72° 48°
- Jun 79° 57°
- Jul 82° 61°
- Aug 81° 60°
- Sep 76° 53°
- Oct 66° 41°
- Nov 55° 31°
- Dec 45° 25°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Blacksburg in September?
The normal high is 76°F and the normal low 53°F, for a daily mean of 64.3°F. September is 6.1°F cooler than August and 11.1°F warmer than October. September is the 4th warmest month of the year in Blacksburg and the 7th wettest. Across the month the normal high falls 9°F, from 80°F on September 1 to 71°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 62°F and 67°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 33%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 80°F | 57°F | 33% | 18% |
| September 8 | 78°F | 56°F | 31% | 17% |
| September 15 | 76°F | 53°F | 31% | 16% |
| September 22 | 74°F | 51°F | 31% | 17% |
| September 30 | 71°F | 48°F | 30% | 18% |
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 | 80°F | 57°F | 33% | 18% | 13 h |
| September 2 | 80°F | 57°F | 33% | 18% | 13 h |
| September 3 | 79°F | 57°F | 32% | 18% | 13 h |
| September 4 | 79°F | 57°F | 32% | 17% | 12 h 50 min |
| September 5 | 79°F | 56°F | 32% | 17% | 12 h 50 min |
| September 6 | 79°F | 56°F | 32% | 17% | 12 h 50 min |
| September 7 | 79°F | 56°F | 32% | 17% | 12 h 50 min |
| September 8 | 78°F | 56°F | 31% | 17% | 12 h 50 min |
| September 9 | 78°F | 55°F | 31% | 17% | 12 h 40 min |
| September 10 | 78°F | 55°F | 31% | 17% | 12 h 40 min |
| September 11 | 77°F | 55°F | 31% | 16% | 12 h 40 min |
| September 12 | 77°F | 54°F | 31% | 16% | 12 h 40 min |
| September 13 | 77°F | 54°F | 31% | 16% | 12 h 30 min |
| September 14 | 77°F | 54°F | 31% | 16% | 12 h 30 min |
| September 15 | 76°F | 53°F | 31% | 16% | 12 h 30 min |
| September 16 | 76°F | 53°F | 31% | 17% | 12 h 30 min |
| September 17 | 76°F | 53°F | 31% | 17% | 12 h 20 min |
| September 18 | 75°F | 52°F | 31% | 17% | 12 h 20 min |
| September 19 | 75°F | 52°F | 31% | 17% | 12 h 20 min |
| September 20 | 75°F | 52°F | 31% | 17% | 12 h 20 min |
| September 21 | 74°F | 51°F | 31% | 17% | 12 h 10 min |
| September 22 | 74°F | 51°F | 31% | 17% | 12 h 10 min |
| September 23 | 73°F | 50°F | 31% | 17% | 12 h 10 min |
| September 24 | 73°F | 50°F | 31% | 17% | 12 h 10 min |
| September 25 | 73°F | 50°F | 31% | 17% | 12 h 10 min |
| September 26 | 72°F | 49°F | 31% | 18% | 12 h |
| September 27 | 72°F | 49°F | 31% | 18% | 12 h |
| September 28 | 72°F | 48°F | 31% | 18% | 12 h |
| September 29 | 71°F | 48°F | 30% | 18% | 12 h |
| September 30 | 71°F | 48°F | 30% | 18% | 11 h 50 min |
- Normal high
- 76°FSeptember average
- Normal low
- 53°FSeptember average
- Precipitation
- 3.45 inmonth total
- Days with precipitation
- 90.01 inch or more
- Days at 90°F or more
- 1
- Daylight
- 13 h to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 24
- Days at 80°F or more
- 11
- Sunshine
- 74%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00440766; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Blacksburg in September?
On a given September day the chance of 0.01 inch or more is 31% on average, highest around September 1 (33%). In all, 3.45 in falls on 9 days of a normal September, 1 of them with an inch or more.
In a normal September in Blacksburg, 1 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00440766.
What are the records for September in Blacksburg?
The warmest September temperature on Blacksburg's official record (since 1893) is 97°F, on September 7, 1925; the coldest is 22°F, on September 24, 1983. The wettest September brought 10.29 in (1957).
The September mean against the 1991-2020 normal of 64.3°F: 2021 64.8°F (+0.5), 2022 64.4°F (+0.1), 2023 65.3°F (+1.0), 2024 66.1°F (+1.8), 2025 63.9°F (−0.4), 2026 69.5°F (+5.2). 5 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 64.8°F | +0.5°F | 7.24 in |
| 2022 | 64.4°F | +0.1°F | 3.21 in |
| 2023 | 65.3°F | +1.0°F | 6.66 in |
| 2024 | 66.1°F | +1.8°F | 6.73 in |
| 2025 | 63.9°F | −0.4°F | 2.44 in |
| 2026 | 69.5°F | +5.2°F | 1.04 in |
Source: records: ACIS, NWS threaded record RNKthr; recent months: ACIS, station USC00440766. Records and recent months use complete months only.
How does September in Blacksburg 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; Blacksburg's is 76°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Blacksburg in August81°F by day, 60°F at night
- Blacksburg in October66°F by day, 41°F at night
- Blacksburg 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