Williamsburg, Kentucky climate: Normal weather by month, frost dates and records
Williamsburg's normal year runs from 25°F January nights to 87°F July afternoons, with 52.0 inches of precipitation and 11 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 13.1°C, January lows of −4°C, July highs of 31°C, 1,320 mm of precipitation a year.
- NOAA stationWilliamsburg
- Station IDUSC00158709
- Location36.73°N 84.15°W
- Elevation940 ft (287 m)
- Population5,332
On October 23, the normal high in Williamsburg is 67°F and the normal low 42°F, and the chance of measurable rain or snow is 28%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Williamsburg.
- Jan 45° 25°
- Feb 49° 27°
- Mar 59° 33°
- Apr 69° 41°
- May 77° 52°
- Jun 84° 61°
- Jul 87° 63°
- Aug 85° 62°
- Sep 80° 55°
- Oct 70° 44°
- Nov 58° 33°
- Dec 49° 28°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Williamsburg each month?
July is the warmest month, with normal highs of 87°F; January the coldest, with normal lows of 25°F. The most precipitation falls in December (5.17 in), the least in October (2.53 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 45°F | 25°F | 35.0°F | 4.20 | 4.1 | 13 | <1 | 24 | 9 h 50 min |
| February | 49°F | 27°F | 37.9°F | 4.54 | 2.6 | 12 | <1 | 21 | 10 h 50 min |
| March | 59°F | 33°F | 46.1°F | 5.06 | 2.0 | 13 | <1 | 17 | 11 h 50 min |
| April | 69°F | 41°F | 54.9°F | 4.96 | 0.0 | 11 | <1 | 7 | 13 h 10 min |
| May | 77°F | 52°F | 64.3°F | 4.89 | 0.0 | 12 | 1 | <1 | 14 h 10 min |
| June | 84°F | 61°F | 72.5°F | 4.67 | 0.0 | 12 | 4 | <1 | 14 h 40 min |
| July | 87°F | 63°F | 75.3°F | 4.57 | 0.0 | 11 | 8 | <1 | 14 h 30 min |
| August | 85°F | 62°F | 73.5°F | 4.19 | 0.0 | 9 | 6 | <1 | 13 h 40 min |
| September | 80°F | 55°F | 67.1°F | 3.96 | 0.0 | 8 | 2 | <1 | 12 h 30 min |
| October | 70°F | 44°F | 56.8°F | 2.53 | 0.0 | 8 | <1 | 5 | 11 h 20 min |
| November | 58°F | 33°F | 45.8°F | 3.23 | 0.0 | 10 | <1 | 16 | 10 h 10 min |
| December | 49°F | 28°F | 38.3°F | 5.17 | 2.5 | 12 | <1 | 23 | 9 h 40 min |
| Year (annual) | 68°F | 44°F | 55.6°F | 51.97 | 11.2 | 129 | 20 | 113 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 7°C | −4°C | 1.7°C | 107 mm | 10 cm |
| February | 10°C | −3°C | 3.3°C | 115 mm | 7 cm |
| March | 15°C | 1°C | 7.8°C | 129 mm | 5 cm |
| April | 20°C | 5°C | 12.7°C | 126 mm | 0 cm |
| May | 25°C | 11°C | 17.9°C | 124 mm | 0 cm |
| June | 29°C | 16°C | 22.5°C | 119 mm | 0 cm |
| July | 31°C | 17°C | 24.1°C | 116 mm | 0 cm |
| August | 29°C | 17°C | 23.1°C | 106 mm | 0 cm |
| September | 26°C | 13°C | 19.5°C | 101 mm | 0 cm |
| October | 21°C | 7°C | 13.8°C | 64 mm | 0 cm |
| November | 15°C | 1°C | 7.7°C | 82 mm | 0 cm |
| December | 9°C | −2°C | 3.5°C | 131 mm | 6 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00158709; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Williamsburg?
Normal highs sit between 65°F and 85°F in April, May, June, August, September and October. Of those, September has the fewest days with rain (8).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00158709.
When is the last frost in Williamsburg?
In Williamsburg, the last spring frost (32°F) comes after April 21 in half of years and after May 5 in one year in ten; the first autumn frost comes before October 22 in half of years and before October 9 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 211 year in 10 after May 5; 9 in 10 after April 8
- First autumn frost, half of years before
- October 221 year in 10 before October 9; 9 in 10 before November 3
NOAA puts the median frost-free season at 182 days, and the season without a hard freeze (28°F) at 203 days.
A hard freeze (28°F) comes after April 11 in half of springs and before November 1 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Williamsburg in zone 7a in ZIP code 40769, the nearest ZIP area.
Frost dates for every NOAA station in Kentucky · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00158709; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Williamsburg?
In a normal year in Williamsburg, 20 days a year reach 90°F, 113 nights fall to 32°F or colder and 129 days bring measurable precipitation.
- Days at 90°F or more
- 20a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 113a normal year
- Days that stay below freezing
- 11high of 32°F or less
- Days with 0.01 inch of precipitation
- 129a normal year
- Days with 1 inch of snow or more
- 4a normal year
The highest temperature in this station's record (since 1892) is 108°F, on August 21, 1936; the lowest is −21°F, on January 20, 1994.
The wettest calendar year on that record is 1974, with 62.62 in; the snowiest season is 1995–96, with 31.4 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00158709; records: ACIS (NOAA Regional Climate Centers), station USC00158709. Records use complete months only; a month missing more than three days is left out.
How sunny is Williamsburg?
Over a year 73% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Williamsburg, 4.2 kWh per square metre a day. August is the sunniest month (79%) and February the cloudiest (61%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 63% | 2.2 |
| February | 61% | 2.8 |
| March | 66% | 3.9 |
| April | 72% | 5.2 |
| May | 73% | 5.7 |
| June | 78% | 6.2 |
| July | 76% | 5.9 |
| August | 79% | 5.5 |
| September | 77% | 4.7 |
| October | 74% | 3.6 |
| November | 73% | 2.6 |
| December | 63% | 1.9 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Williamsburg need?
A normal year in Williamsburg brings 4,446 heating degree days, 17% fewer than the median U.S. place (5,373), and 1,058 cooling degree days, 17% more than the median (908). Six months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 3,774 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 928 | 0 |
| February | 759 | 0 |
| March | 587 | 3 |
| April | 319 | 16 |
| May | 108 | 86 |
| June | 12 | 237 |
| July | 0 | 318 |
| August | 2 | 264 |
| September | 52 | 115 |
| October | 271 | 17 |
| November | 577 | 1 |
| December | 829 | 0 |
| Year (annual) | 4,446 | 1,058 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00158709. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
How does Williamsburg's climate compare?
Williamsburg is warmer than 29 of the other 67 places with their own NOAA record in Kentucky, and wetter than 41. Across the 7,247 U.S. stations with normals, its annual mean of 55.6°F is warmer than 62%.
In the Köppen classification computed from these normals, Williamsburg is Cfa: temperate, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Williamsburg share this climate record?
2 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Jellico, TN2,122 people · 11 mi S
- Rockholds, KY192 people · 7 mi N
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Williamsburg's climate
What is the coldest month in Williamsburg?
January, with a normal high of 45°F and a normal low of 25°F. The warmest is July (87°F by day, 63°F at night).
Does it snow in Williamsburg?
Yes: 11 inches in a normal year, falling on 9 days with 0.1 inch or more, the most in January (4.1 inches).
What is the rainiest month in Williamsburg?
December, with 5.17 in of precipitation in a normal year; the driest is October with 2.53 in.
What plant hardiness zone is Williamsburg in?
The USDA's 2023 map puts Williamsburg in zone 7a in ZIP code 40769, the nearest ZIP area.
How late can frost come in Williamsburg?
In half of years the last 32°F night comes after April 21; in one year in ten it comes after May 5. Waiting until May 5 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Kentucky climateThe statewide normals and every place in the state
- Newcomb, TN12 miles from this station, 56.0°F a year
- Barbourville, KY18 miles from this station, 56.0°F a year
- Stearns, KY19 miles from this station, 54.9°F a year
- London, KY25 miles from this station, 56.9°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made