Winchester weather in September
In September, Winchester sees average daytime highs of 79°F and overnight lows near 60°F, with 3.5 in of rain across 8.3 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 9th-wettest month of the year here.
Highs ease over the month, from about 83°F in the first days to 74°F by the end. The sky is clear or mostly clear about 42% of the time in September, and the air most often feels dry.
Daylight stretches from about 12 h 54 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Winchester's 1st-clearest and 10th-windiest month. For the whole year in context, see Winchester's year-round climate.
- Daytime high
- 79°
- 4th warmest
- Overnight low
- 60°
- 9th coldest
- Rainfall
- 3.5 in
- 8.3 wet days
- Daylight
- 12 h 12 min
- 6:24 AM – 6:38 PM
- Cloud cover
- 50%
- 1st clearest
- Wind
- 5 mph
- 10th windiest
- Solar energy
- 4.57 kWh/m²
- Travel score
- 7.0
- out of 10
Winchester is city in and the county seat of Clark County, Kentucky, United States.
- Density
- 903/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in September
Highs ease over the month, from about 83°F in the first days to 74°F by the end.
A typical September day in Winchester reaches about 79°F in the afternoon and slips back to 60°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 69°F and 88°F. Set against its neighbours, September runs about 6°F cooler than August and about 12°F warmer than October.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 83 | 83 | 83 | 83 | 82 | 82 | 82 | 81 | 81 | 81 | 80 | 80 | 80 | 79 | 79 | 79 | 78 | 78 | 78 | 77 | 77 | 76 | 76 | 76 | 75 | 75 | 75 | 74 | 74 | 74 |
| Avg low (°F) | 65 | 64 | 64 | 64 | 63 | 63 | 63 | 62 | 62 | 62 | 61 | 61 | 60 | 60 | 60 | 59 | 59 | 59 | 58 | 58 | 58 | 57 | 57 | 56 | 56 | 55 | 55 | 55 | 54 | 54 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 83 | 65 |
| 2 | 83 | 64 |
| 3 | 83 | 64 |
| 4 | 83 | 64 |
| 5 | 82 | 63 |
| 6 | 82 | 63 |
| 7 | 82 | 63 |
| 8 | 81 | 62 |
| 9 | 81 | 62 |
| 10 | 81 | 62 |
| 11 | 80 | 61 |
| 12 | 80 | 61 |
| 13 | 80 | 60 |
| 14 | 79 | 60 |
| 15 | 79 | 60 |
| 16 | 79 | 59 |
| 17 | 78 | 59 |
| 18 | 78 | 59 |
| 19 | 78 | 58 |
| 20 | 77 | 58 |
| 21 | 77 | 58 |
| 22 | 76 | 57 |
| 23 | 76 | 57 |
| 24 | 76 | 56 |
| 25 | 75 | 56 |
| 26 | 75 | 55 |
| 27 | 75 | 55 |
| 28 | 74 | 55 |
| 29 | 74 | 54 |
| 30 | 74 | 54 |
How September really feels in Winchester
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.
September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Winchester weather by month
How September compares with the rest of the year at a glance. September is the 4th-warmest and 9th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 42° / 28° | 3.7 | 10.4 | 3.2 | 9.7 | 0.3 |
| Feb | 46° / 30° | 3.8 | 10.5 | 3.1 | 10.5 | 1.2 |
| Mar | 55° / 37° | 4.4 | 12 | 1.8 | 11.7 | 3.4 |
| Apr | 66° / 47° | 4.8 | 12.4 | 0.3 | 13 | 5.6 |
| May | 74° / 56° | 4.7 | 13.3 | 0 | 14 | 6.2 |
| Jun | 82° / 65° | 4.3 | 13.1 | 0 | 14.6 | 5.5 |
| Jul | 85° / 68° | 4.1 | 12.4 | 0 | 14.4 | 4.9 |
| Aug | 85° / 67° | 3.1 | 10.7 | 0 | 13.5 | 5.3 |
| Sep | 79° / 60° | 3.5 | 8.3 | 0 | 12.3 | 7.0 |
| Oct | 67° / 48° | 3.3 | 8.7 | 0.1 | 11 | 6.4 |
| Nov | 55° / 38° | 3.5 | 9.1 | 0.5 | 9.9 | 3.6 |
| Dec | 46° / 32° | 4.2 | 10.8 | 2.2 | 9.4 | 1.1 |
Cloud cover in September
The sky is clear or mostly clear about 42% of the time in September, the clearest month of the year.
Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 42%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 59 | 59 | 59 | 58 | 58 | 57 | 57 | 57 | 56 | 56 | 56 | 56 | 56 | 56 | 56 | 56 | 57 | 57 | 57 | 57 | 58 | 59 | 59 |
| Cloudier (%) | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 41 | 41 | 41 | 42 | 42 | 43 | 43 | 43 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 43 | 43 | 43 | 43 | 42 | 41 | 41 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 60 | 40 |
| 2 | 60 | 40 |
| 3 | 60 | 40 |
| 4 | 60 | 40 |
| 5 | 60 | 40 |
| 6 | 60 | 40 |
| 7 | 60 | 40 |
| 8 | 59 | 41 |
| 9 | 59 | 41 |
| 10 | 59 | 41 |
| 11 | 58 | 42 |
| 12 | 58 | 42 |
| 13 | 57 | 43 |
| 14 | 57 | 43 |
| 15 | 57 | 43 |
| 16 | 56 | 44 |
| 17 | 56 | 44 |
| 18 | 56 | 44 |
| 19 | 56 | 44 |
| 20 | 56 | 44 |
| 21 | 56 | 44 |
| 22 | 56 | 44 |
| 23 | 56 | 44 |
| 24 | 57 | 43 |
| 25 | 57 | 43 |
| 26 | 57 | 43 |
| 27 | 57 | 43 |
| 28 | 58 | 42 |
| 29 | 59 | 41 |
| 30 | 59 | 41 |
Chance of precipitation in September
Winchester gets around 3.5 in of rain over 8.3 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 28% and peaks near 31% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 31 | 30 | 30 | 30 | 29 | 29 | 28 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 26 | 26 | 25 |
| Rain chance (%) | |
|---|---|
| 1 | 31 |
| 2 | 30 |
| 3 | 30 |
| 4 | 30 |
| 5 | 29 |
| 6 | 29 |
| 7 | 28 |
| 8 | 27 |
| 9 | 27 |
| 10 | 26 |
| 11 | 26 |
| 12 | 26 |
| 13 | 26 |
| 14 | 26 |
| 15 | 27 |
| 16 | 27 |
| 17 | 27 |
| 18 | 27 |
| 19 | 28 |
| 20 | 28 |
| 21 | 28 |
| 22 | 28 |
| 23 | 28 |
| 24 | 28 |
| 25 | 28 |
| 26 | 27 |
| 27 | 27 |
| 28 | 26 |
| 29 | 26 |
| 30 | 25 |
Humidity in September
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 32% of days. Sticky, muggy-or-worse air turns up on roughly 23% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 11 | 12 | 12 | 13 | 15 | 16 | 17 | 18 | 20 | 21 | 23 | 25 | 26 | 28 | 30 | 32 | 33 | 35 | 37 | 39 | 41 | 43 | 45 | 47 | 49 | 50 | 51 | 54 | 56 | 57 |
| Comfortable (%) | 19 | 20 | 21 | 22 | 22 | 23 | 24 | 24 | 25 | 25 | 24 | 24 | 23 | 23 | 22 | 22 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 19 |
| Humid (%) | 23 | 23 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 24 | 23 | 22 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
| Muggy (%) | 33 | 32 | 31 | 30 | 29 | 28 | 26 | 25 | 24 | 23 | 23 | 22 | 21 | 20 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 13 | 12 | 11 | 10 | 10 | 9 | 8 | 7 |
| Oppressive (%) | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 4 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 11 | 19 | 23 | 33 | 14 |
| 2 | 12 | 20 | 23 | 32 | 13 |
| 3 | 12 | 21 | 24 | 31 | 12 |
| 4 | 13 | 22 | 24 | 30 | 11 |
| 5 | 15 | 22 | 24 | 29 | 10 |
| 6 | 16 | 23 | 24 | 28 | 9 |
| 7 | 17 | 24 | 25 | 26 | 8 |
| 8 | 18 | 24 | 25 | 25 | 7 |
| 9 | 20 | 25 | 25 | 24 | 6 |
| 10 | 21 | 25 | 25 | 23 | 5 |
| 11 | 23 | 24 | 26 | 23 | 4 |
| 12 | 25 | 24 | 26 | 22 | 4 |
| 13 | 26 | 23 | 26 | 21 | 3 |
| 14 | 28 | 23 | 26 | 20 | 3 |
| 15 | 30 | 22 | 26 | 20 | 2 |
| 16 | 32 | 22 | 26 | 19 | 2 |
| 17 | 33 | 21 | 26 | 18 | 2 |
| 18 | 35 | 21 | 25 | 17 | 1 |
| 19 | 37 | 21 | 25 | 16 | 1 |
| 20 | 39 | 20 | 25 | 15 | 1 |
| 21 | 41 | 20 | 24 | 14 | 1 |
| 22 | 43 | 20 | 23 | 13 | 1 |
| 23 | 45 | 20 | 22 | 13 | 0 |
| 24 | 47 | 20 | 22 | 12 | 0 |
| 25 | 49 | 20 | 21 | 11 | 0 |
| 26 | 50 | 20 | 20 | 10 | 0 |
| 27 | 51 | 20 | 19 | 10 | 0 |
| 28 | 54 | 19 | 18 | 9 | 0 |
| 29 | 56 | 19 | 17 | 8 | 0 |
| 30 | 57 | 19 | 16 | 7 | 0 |
Wind in September
Winds average 5 mph in September.
Across September, daily wind ranges from about 5 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 5 | calm |
| 2 | 5 | calm |
| 3 | 5 | calm |
| 4 | 5 | calm |
| 5 | 5 | calm |
| 6 | 5 | calm |
| 7 | 5 | calm |
| 8 | 5 | calm |
| 9 | 5 | calm |
| 10 | 5 | calm |
| 11 | 5 | calm |
| 12 | 5 | calm |
| 13 | 5 | calm |
| 14 | 5 | calm |
| 15 | 5 | calm |
| 16 | 5 | calm |
| 17 | 5 | calm |
| 18 | 5 | calm |
| 19 | 5 | calm |
| 20 | 5 | calm |
| 21 | 5 | calm |
| 22 | 6 | calm |
| 23 | 6 | calm |
| 24 | 6 | calm |
| 25 | 6 | calm |
| 26 | 6 | calm |
| 27 | 6 | calm |
| 28 | 6 | calm |
| 29 | 6 | calm |
| 30 | 6 | calm |
Sunrise & sunset in September
Daylight runs from about 12 h 54 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 72 minutes over September. Sunrise moves from 6:11 AM to 6:36 AM, and sunset from 7:02 PM to 6:16 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.9 | 12.8 | 12.8 | 12.7 | 12.7 | 12.7 | 12.6 | 12.6 | 12.5 | 12.5 | 12.5 | 12.4 | 12.4 | 12.3 | 12.3 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.0 | 12.0 | 11.9 | 11.9 | 11.9 | 11.8 | 11.8 | 11.7 | 11.7 | 11.7 |
| Sunrise (AM) | 6:11 | 6:11 | 6:12 | 6:13 | 6:14 | 6:15 | 6:16 | 6:17 | 6:18 | 6:19 | 6:19 | 6:20 | 6:21 | 6:22 | 6:23 | 6:24 | 6:25 | 6:26 | 6:26 | 6:27 | 6:28 | 6:29 | 6:30 | 6:31 | 6:32 | 6:33 | 6:34 | 6:35 | 6:35 | 6:36 |
| Sunset (PM) | 7:02 | 7:01 | 6:59 | 6:58 | 6:56 | 6:54 | 6:53 | 6:51 | 6:50 | 6:48 | 6:46 | 6:45 | 6:43 | 6:42 | 6:40 | 6:38 | 6:37 | 6:35 | 6:33 | 6:32 | 6:30 | 6:29 | 6:27 | 6:25 | 6:24 | 6:22 | 6:20 | 6:19 | 6:17 | 6:16 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.9 | 6:11 | 7:02 |
| 2 | 12.8 | 6:11 | 7:01 |
| 3 | 12.8 | 6:12 | 6:59 |
| 4 | 12.7 | 6:13 | 6:58 |
| 5 | 12.7 | 6:14 | 6:56 |
| 6 | 12.7 | 6:15 | 6:54 |
| 7 | 12.6 | 6:16 | 6:53 |
| 8 | 12.6 | 6:17 | 6:51 |
| 9 | 12.5 | 6:18 | 6:50 |
| 10 | 12.5 | 6:19 | 6:48 |
| 11 | 12.5 | 6:19 | 6:46 |
| 12 | 12.4 | 6:20 | 6:45 |
| 13 | 12.4 | 6:21 | 6:43 |
| 14 | 12.3 | 6:22 | 6:42 |
| 15 | 12.3 | 6:23 | 6:40 |
| 16 | 12.2 | 6:24 | 6:38 |
| 17 | 12.2 | 6:25 | 6:37 |
| 18 | 12.2 | 6:26 | 6:35 |
| 19 | 12.1 | 6:26 | 6:33 |
| 20 | 12.1 | 6:27 | 6:32 |
| 21 | 12.0 | 6:28 | 6:30 |
| 22 | 12.0 | 6:29 | 6:29 |
| 23 | 11.9 | 6:30 | 6:27 |
| 24 | 11.9 | 6:31 | 6:25 |
| 25 | 11.9 | 6:32 | 6:24 |
| 26 | 11.8 | 6:33 | 6:22 |
| 27 | 11.8 | 6:34 | 6:20 |
| 28 | 11.7 | 6:35 | 6:19 |
| 29 | 11.7 | 6:35 | 6:17 |
| 30 | 11.7 | 6:36 | 6:16 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 4.57 kWh/m².
For context, solar energy here swings from a low near 1.81 kWh/m² to a high of 6.14 kWh/m² in June across the year — September's 4.57 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.1 | 5.1 | 5.0 | 5.0 | 5.0 | 4.9 | 4.9 | 4.9 | 4.8 | 4.8 | 4.8 | 4.7 | 4.7 | 4.6 | 4.6 | 4.5 | 4.5 | 4.5 | 4.4 | 4.4 | 4.4 | 4.3 | 4.3 | 4.3 | 4.2 | 4.2 | 4.2 | 4.2 | 4.1 | 4.1 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.1 | Bright |
| 2 | 5.1 | Bright |
| 3 | 5.0 | Bright |
| 4 | 5.0 | Bright |
| 5 | 5.0 | Bright |
| 6 | 4.9 | Bright |
| 7 | 4.9 | Bright |
| 8 | 4.9 | Bright |
| 9 | 4.8 | Bright |
| 10 | 4.8 | Bright |
| 11 | 4.8 | Bright |
| 12 | 4.7 | Bright |
| 13 | 4.7 | Bright |
| 14 | 4.6 | Bright |
| 15 | 4.6 | Bright |
| 16 | 4.5 | Bright |
| 17 | 4.5 | Bright |
| 18 | 4.5 | Bright |
| 19 | 4.4 | Bright |
| 20 | 4.4 | Bright |
| 21 | 4.4 | Bright |
| 22 | 4.3 | Bright |
| 23 | 4.3 | Bright |
| 24 | 4.3 | Bright |
| 25 | 4.2 | Bright |
| 26 | 4.2 | Bright |
| 27 | 4.2 | Bright |
| 28 | 4.2 | Bright |
| 29 | 4.1 | Bright |
| 30 | 4.1 | Bright |
Is September a good time to visit Winchester?
Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
September is one of the better times to visit Winchester for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Winchester in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Winchester sees daytime highs around 79°F and nights near 60°F. Worth packing: light clothes, rain gear and sun protection. About 8 days see rain.
UV index in Winchester in September
Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Winchester peaks around June 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 3 | 2 |
| Level | Moderate | Moderate | High | High | Very high | Very high | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 3 | Moderate |
| Mar | 5 | High |
| Apr | 6 | High |
| May | 8 | Very high |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 4 | Moderate |
| Nov | 3 | Moderate |
| Dec | 2 | Low |
Air quality in Winchester in September
Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.
Air quality in Winchester is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (December, 7 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 8 | 9 | 10 | 11 | 14 | 16 | 18 | 14 | 11 | 7 | 7 | 7 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 9 | Good |
| Mar | 10 | Good |
| Apr | 11 | Good |
| May | 14 | Moderate |
| Jun | 16 | Moderate |
| Jul | 18 | Moderate |
| Aug | 14 | Moderate |
| Sep | 11 | Good |
| Oct | 7 | Good |
| Nov | 7 | Good |
| Dec | 7 | Good |
Where is Winchester?
Winchester sits at 38.0°N, 84.2°W, 994 ft above sea level, in United States. The nearest listed city is Lexington-Fayette, 16 mi away.
Topography around Winchester
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Winchester.
Within 2 miles, the terrain around Winchester has only modest variations in elevation — a maximum elevation change of 177 ft around an average of 971 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 561 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,257 ft.
The land around Winchester is covered by grassland (45%) and trees (31%) within 2 miles, grassland (50%) and trees (30%) within 10 miles, and trees (57%) and grassland (35%) within 50 miles.
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
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 Winchester (37.9901°, -84.1796°, elevation 994 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).