Christiansburg weather in September

In September, Christiansburg sees average daytime highs of 75°F and overnight lows near 56°F, with 3.1 in of rain across 8.5 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 79°F in the first days to 71°F by the end. The sky is clear or mostly clear about 34% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 48 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Christiansburg's 3rd-clearest and 10th-windiest month. For the whole year in context, see Christiansburg's year-round climate.

Daytime high
75°
4th warmest
Overnight low
56°
9th coldest
Rainfall
3.1 in
8.5 wet days
Daylight
12 h 12 min
6:09 AM – 6:23 PM
Cloud cover
56%
3rd clearest
Wind
5 mph
10th windiest
Solar energy
4.37 kWh/m²
Travel score
7.1
out of 10

Christiansburg is town in Montgomery County, Virginia, USA.

Density
588/km²
people per km²
Founded
1792

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 79°F in the first days to 71°F by the end.

A typical September day in Christiansburg reaches about 75°F in the afternoon and slips back to 56°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 66°F and 84°F. Set against its neighbours, September runs about 6°F cooler than August and about 10°F warmer than October.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
17961
27960
37960
47860
57860
67859
77859
87759
97758
107758
117658
127657
137657
147557
157556
167556
177456
187456
197455
207355
217355
227354
237254
247253
257253
267153
277152
287152
297051
307051

How September really feels in Christiansburg

Once humidity and wind are folded in, September averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Christiansburg weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan42° / 26°3.19.239.70.4
Feb46° / 28°2.98.83.210.61.2
Mar54° / 35°3.8112.311.73.2
Apr64° / 44°3.110.70.412.95.6
May71° / 52°3.311.80146.2
Jun78° / 60°3.011.8014.56.4
Jul82° / 64°2.812.5014.36.0
Aug81° / 63°2.510.4013.46.4
Sep75° / 56°3.18.5012.37.1
Oct65° / 45°2.67.20.2116.2
Nov54° / 35°2.67.50.4103.5
Dec45° / 30°3.18.52.39.51.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15347
25347
35446
45446
55446
65446
75446
85446
95446
105347
115347
125347
135248
145149
155149
165050
174951
184852
194852
204852
214852
224951
234951
245149
255149
265248
275347
285347
295545
305545

Chance of precipitation in September

Any precipitation

Christiansburg gets around 3.1 in of rain over 8.5 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 27% and peaks near 29% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
129
229
329
428
528
628
727
827
927
1026
1126
1226
1325
1425
1525
1626
1726
1827
1928
2028
2129
2229
2329
2429
2528
2628
2728
2827
2927
3027

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 39% of days. Sticky, muggy-or-worse air turns up on roughly 10% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
117283421
219283320
320293119
422293019
524302918
626302717
728302616
830302515
932302414
1033302413
1135312312
1236312311
1337302310
143830229
153930228
164030218
174130217
184230217
194330206
204430206
214530195
224729195
234928194
245028184
255127184
265426173
275625163
285824153
295923153
306122143

Wind in September

Winds average 5 mph in September.

Across September, daily wind ranges from about 4 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 48 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over September. Sunrise moves from 5:56 AM to 6:21 AM, and sunset from 6:46 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:566:46
212.85:576:45
312.85:586:43
412.75:596:42
512.76:006:40
612.66:016:39
712.66:016:37
812.66:026:36
912.56:036:34
1012.56:046:32
1112.46:056:31
1212.46:066:29
1312.46:066:28
1412.36:076:26
1512.36:086:25
1612.26:096:23
1712.26:106:21
1812.26:116:20
1912.16:116:18
2012.16:126:17
2112.06:136:15
2212.06:146:13
2311.96:156:12
2411.96:166:10
2511.96:176:09
2611.86:176:07
2711.86:186:06
2811.76:196:04
2911.76:206:02
3011.76:216:01

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.37 kWh/m².

For context, solar energy here swings from a low near 2.09 kWh/m² to a high of 6.05 kWh/m² in June across the year — September's 4.37 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.7Bright
84.7Bright
94.7Bright
104.6Bright
114.6Bright
124.5Bright
134.5Bright
144.5Bright
154.4Bright
164.4Bright
174.3Bright
184.3Bright
194.2Bright
204.2Bright
214.2Bright
224.1Bright
234.1Bright
244.1Bright
254.0Bright
264.0Bright
274.0Moderate
284.0Moderate
294.0Moderate
304.0Moderate
Planning a trip in September

Is September a good time to visit Christiansburg?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.1
Sightseeing
1st-best month of the year
5.8
Beach & pool
4th-best month of the year

September is one of the better times to visit Christiansburg for general sightseeing.

What to pack for Christiansburg in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Christiansburg sees daytime highs around 75°F and nights near 56°F. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

UV index in Christiansburg in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Christiansburg peaks around July 13 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 13UV 10Dec 21UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug8Very high
Sep7High
Oct5Moderate
Nov4Moderate
Dec2Moderate

Air quality in Christiansburg in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Christiansburg is worst in July — around 16 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (December, 6 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1416 µg/m³Dec 126 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar9Good
Apr10Good
May13Moderate
Jun15Moderate
Jul16Moderate
Aug14Moderate
Sep11Good
Oct7Good
Nov6Good
Dec6Good
Location & terrain

Where is Christiansburg?

Christiansburg sits at 37.1°N, 80.4°W, 2,093 ft above sea level, in United States. The nearest listed city is Blacksburg, 6.8 mi away.

Topography around Christiansburg

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Christiansburg.

Within 2 miles, the terrain around Christiansburg has only modest variations in elevation — a maximum elevation change of 663 ft around an average of 2,139 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,726 ft; within 50 miles, large variations in elevation — a maximum elevation change of 3,727 ft.

The land around Christiansburg is covered by trees (47%) and grassland (37%) within 2 miles, trees (67%) and grassland (28%) within 10 miles, and trees (80%) within 50 miles.

2 miles
663 ft
10 miles
1,726 ft
50 miles
3,727 ft
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Blacksburg 6.8 mi · Radford 9.3 mi · Salem 22 mi · Cave Spring 23 mi · Roanoke 27 mi · Eden 57 mi · Beckley 62 mi · Danville 68 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Christiansburg (37.1298°, -80.4089°, elevation 2,093 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).