Beaver Dam, Kentucky climate: Normal weather by month, frost dates and records
Beaver Dam's normal year runs from 24°F January nights to 88°F July afternoons, with 52.0 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 13.8°C, January lows of −4°C, July highs of 31°C, 1,320 mm of precipitation a year.
- NOAA stationBeaver Dam
- Station IDUSC00150490
- Location37.45°N 86.91°W
- Elevation400 ft (122 m)
- Population3,535
On October 23, the normal high in Beaver Dam is 68°F and the normal low 42°F, and the chance of measurable rain or snow is 25%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Beaver Dam.
- Jan 44° 24°
- Feb 49° 27°
- Mar 58° 35°
- Apr 70° 45°
- May 77° 56°
- Jun 85° 64°
- Jul 88° 68°
- Aug 88° 65°
- Sep 82° 58°
- Oct 71° 45°
- Nov 58° 36°
- Dec 47° 29°
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 Beaver Dam each month?
July is the warmest month, with normal highs of 88°F; January the coldest, with normal lows of 24°F. The most precipitation falls in May (5.50 in), the least in August (3.41 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 44°F | 24°F | 34.0°F | 3.79 | 9 | <1 | 23 | 9 h 50 min |
| February | 49°F | 27°F | 37.5°F | 4.01 | 9 | <1 | 18 | 10 h 50 min |
| March | 58°F | 35°F | 46.4°F | 5.11 | 10 | <1 | 13 | 11 h 50 min |
| April | 70°F | 45°F | 57.5°F | 5.01 | 10 | <1 | 4 | 13 h 10 min |
| May | 77°F | 56°F | 66.4°F | 5.50 | 10 | 1 | <1 | 14 h 10 min |
| June | 85°F | 64°F | 74.2°F | 4.31 | 10 | 7 | <1 | 14 h 40 min |
| July | 88°F | 68°F | 77.7°F | 4.55 | 8 | 13 | <1 | 14 h 30 min |
| August | 88°F | 65°F | 76.5°F | 3.41 | 6 | 13 | <1 | 13 h 40 min |
| September | 82°F | 58°F | 69.7°F | 3.80 | 6 | 5 | <1 | 12 h 30 min |
| October | 71°F | 45°F | 57.7°F | 4.33 | 7 | <1 | 3 | 11 h 20 min |
| November | 58°F | 36°F | 46.6°F | 3.74 | 8 | <1 | 12 | 10 h 10 min |
| December | 47°F | 29°F | 38.0°F | 4.40 | 10 | <1 | 19 | 9 h 40 min |
| Year (annual) | 68°F | 46°F | 56.9°F | 51.96 | 104 | 39 | 92 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 7°C | −4°C | 1.1°C | 96 mm |
| February | 9°C | −3°C | 3.1°C | 102 mm |
| March | 14°C | 2°C | 8.0°C | 130 mm |
| April | 21°C | 7°C | 14.2°C | 127 mm |
| May | 25°C | 13°C | 19.1°C | 140 mm |
| June | 29°C | 18°C | 23.4°C | 109 mm |
| July | 31°C | 20°C | 25.4°C | 116 mm |
| August | 31°C | 19°C | 24.7°C | 87 mm |
| September | 28°C | 14°C | 20.9°C | 97 mm |
| October | 21°C | 7°C | 14.3°C | 110 mm |
| November | 14°C | 2°C | 8.1°C | 95 mm |
| December | 8°C | −2°C | 3.3°C | 112 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Rochester (16 miles away), gets 4 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00150490; 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 Beaver Dam?
Normal highs sit between 65°F and 85°F in April, May, June, September and October. Of those, September has the fewest days with rain (6).
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 USC00150490.
When is the last frost in Beaver Dam?
In Beaver Dam, the last spring frost (32°F) comes after April 10 in half of years and after April 29 in one year in ten; the first autumn frost comes before October 22 in half of years and before October 8 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 101 year in 10 after April 29; 9 in 10 after March 26
- First autumn frost, half of years before
- October 221 year in 10 before October 8; 9 in 10 before November 3
NOAA puts the median frost-free season at 192 days, and the season without a hard freeze (28°F) at 215 days.
A hard freeze (28°F) comes after March 31 in half of springs and before November 1 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Beaver Dam in zone 7a in ZIP code 42354, 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 USC00150490; 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 Beaver Dam?
In a normal year in Beaver Dam, 39 days a year reach 90°F (1 of them 100°F or more), 92 nights fall to 32°F or colder and 104 days bring measurable precipitation.
- Days at 90°F or more
- 39a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 92a normal year
- Days that stay below freezing
- 11high of 32°F or less
- Days with 0.01 inch of precipitation
- 104a normal year
The highest temperature in this station's record (since 1903) is 110°F, on August 8, 1930; the lowest is −25°F, on January 24, 1963.
The wettest calendar year on that record is 1979, with 76.44 in; the snowiest season is 1984–85, with 32.2 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00150490; records: ACIS (NOAA Regional Climate Centers), station USC00150490. Records use complete months only; a month missing more than three days is left out.
How sunny is Beaver Dam?
Over a year 74% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Beaver Dam, 4.2 kWh per square metre a day. August is the sunniest month (81%) and December the cloudiest (62%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 63% | 2.0 |
| February | 62% | 2.7 |
| March | 66% | 3.8 |
| April | 73% | 5.1 |
| May | 74% | 5.7 |
| June | 81% | 6.4 |
| July | 81% | 6.1 |
| August | 81% | 5.6 |
| September | 79% | 4.7 |
| October | 75% | 3.5 |
| November | 72% | 2.5 |
| December | 62% | 1.8 |
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 Beaver Dam need?
A normal year in Beaver Dam brings 4,330 heating degree days, 19% fewer than the median U.S. place (5,373), and 1,393 cooling degree days, 53% more than the median (908). Five months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 4,246 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 962 | 0 |
| February | 770 | 0 |
| March | 579 | 3 |
| April | 258 | 31 |
| May | 75 | 117 |
| June | 6 | 284 |
| July | 0 | 394 |
| August | 0 | 357 |
| September | 33 | 175 |
| October | 254 | 29 |
| November | 555 | 3 |
| December | 837 | 0 |
| Year (annual) | 4,330 | 1,393 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00150490. 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 Beaver Dam's climate compare?
Beaver Dam is warmer than 45 of the other 67 places with their own NOAA record in Kentucky, and wetter than 40. Across the 7,247 U.S. stations with normals, its annual mean of 56.9°F is warmer than 66%.
In the Köppen classification computed from these normals, Beaver Dam 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 Beaver Dam share this climate record?
7 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.
- Hartford, KY2,652 people · 1 mi E
- Pleasant Ridge, KY729 people · 11 mi NW
- Centertown, KY418 people · 5 mi SW
- McHenry, KY382 people · 5 mi S
- Rockport, KY265 people · 9 mi SW
- South Carrollton, KY138 people · 15 mi SW
- Rosine, KY95 people · 10 mi E
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 Beaver Dam's climate
What is the coldest month in Beaver Dam?
January, with a normal high of 44°F and a normal low of 24°F. The warmest is July (88°F by day, 68°F at night).
Does it snow in Beaver Dam?
Yes. NOAA publishes no 1991-2020 snowfall normal for Beaver Dam's NOAA station; the nearest record that keeps one, Rochester (16 miles away), records 4 inches of snow in a normal year.
What is the rainiest month in Beaver Dam?
May, with 5.50 in of precipitation in a normal year; the driest is August with 3.41 in.
What plant hardiness zone is Beaver Dam in?
The USDA's 2023 map puts Beaver Dam in zone 7a in ZIP code 42354, the nearest ZIP area.
How late can frost come in Beaver Dam?
In half of years the last 32°F night comes after April 10; in one year in ten it comes after April 29. Waiting until April 29 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Kentucky climateThe statewide normals and every place in the state
- Rochester, KY16 miles from this station, 56.0°F a year
- Calhoun, KY21 miles from this station, 57.2°F a year
- Rough River Lake, KY25 miles from this station, 56.7°F a year
- McDaniels, KY30 miles from this station, 55.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made