Hogsett R.C. Byrd Dam, West Virginia climate: Climate normals at a NOAA weather station
Hogsett R.C. Byrd Dam's normal year runs from 23°F January nights to 85°F July afternoons, with 42.1 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 12.1°C, January lows of −5°C, July highs of 29°C, 1,070 mm of precipitation a year.
- NOAA stationHogsett R.C. Byrd Dam
- Station IDUSC00464200
- Location38.68°N 82.18°W
- Elevation570 ft (174 m)
On October 23, the normal high in Hogsett R.C. Byrd Dam is 64°F and the normal low 41°F, and the chance of measurable rain or snow is 31%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Hogsett R.C. Byrd Dam.
- Jan 40° 23°
- Feb 44° 25°
- Mar 54° 31°
- Apr 66° 41°
- May 74° 51°
- Jun 82° 60°
- Jul 85° 64°
- Aug 84° 63°
- Sep 78° 56°
- Oct 67° 44°
- Nov 55° 34°
- Dec 44° 27°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like at Hogsett R.C. Byrd Dam each month?
July is the warmest month, with normal highs of 85°F; January the coldest, with normal lows of 23°F. The most precipitation falls in July (4.34 in), the least in October (2.65 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 40°F | 23°F | 31.7°F | 3.36 | 14 | <1 | 25 | 9 h 40 min |
| February | 44°F | 25°F | 34.6°F | 2.78 | 11 | <1 | 22 | 10 h 40 min |
| March | 54°F | 31°F | 42.5°F | 3.95 | 13 | <1 | 17 | 11 h 50 min |
| April | 66°F | 41°F | 53.5°F | 3.58 | 12 | <1 | 5 | 13 h 10 min |
| May | 74°F | 51°F | 62.4°F | 4.12 | 13 | 1 | <1 | 14 h 10 min |
| June | 82°F | 60°F | 70.9°F | 4.07 | 11 | 5 | <1 | 14 h 50 min |
| July | 85°F | 64°F | 74.5°F | 4.34 | 11 | 10 | <1 | 14 h 40 min |
| August | 84°F | 63°F | 73.4°F | 3.08 | 9 | 8 | <1 | 13 h 40 min |
| September | 78°F | 56°F | 67.3°F | 3.81 | 8 | 3 | <1 | 12 h 30 min |
| October | 67°F | 44°F | 55.5°F | 2.65 | 9 | <1 | 2 | 11 h 20 min |
| November | 55°F | 34°F | 44.1°F | 2.74 | 10 | <1 | 14 | 10 h 10 min |
| December | 44°F | 27°F | 35.8°F | 3.65 | 14 | <1 | 22 | 9 h 30 min |
| Year (annual) | 64°F | 43°F | 53.8°F | 42.13 | 135 | 27 | 107 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 5°C | −5°C | −0.2°C | 85 mm |
| February | 7°C | −4°C | 1.4°C | 71 mm |
| March | 12°C | 0°C | 5.8°C | 100 mm |
| April | 19°C | 5°C | 11.9°C | 91 mm |
| May | 23°C | 10°C | 16.9°C | 105 mm |
| June | 28°C | 16°C | 21.6°C | 103 mm |
| July | 29°C | 18°C | 23.6°C | 110 mm |
| August | 29°C | 17°C | 23.0°C | 78 mm |
| September | 26°C | 13°C | 19.6°C | 97 mm |
| October | 19°C | 7°C | 13.1°C | 67 mm |
| November | 13°C | 1°C | 6.7°C | 70 mm |
| December | 7°C | −3°C | 2.1°C | 93 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Waterloo (16 miles away), gets 14 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00464200; 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.
Which months are mildest at Hogsett R.C. Byrd Dam?
Normal highs sit between 65°F and 85°F in April, May, June, July, 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 USC00464200.
When is the last frost at Hogsett R.C. Byrd Dam?
In Hogsett R.C. Byrd Dam, the last spring frost (32°F) comes after April 18 in half of years and after May 5 in one year in ten; the first autumn frost comes before October 29 in half of years and before October 16 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 181 year in 10 after May 5; 9 in 10 after April 3
- First autumn frost, half of years before
- October 291 year in 10 before October 16; 9 in 10 before November 9
NOAA puts the median frost-free season at 192 days, and the season without a hard freeze (28°F) at 216 days.
A hard freeze (28°F) comes after April 4 in half of springs and before November 7 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Hogsett R.C. Byrd Dam in zone 6b in ZIP code 25502, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, the station is in zone 7a: the coldest night of a typical year reaches 4°F (21 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in West Virginia · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00464200; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. 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 at Hogsett R.C. Byrd Dam?
In a normal year in Hogsett R.C. Byrd Dam, 27 days a year reach 90°F, 107 nights fall to 32°F or colder and 135 days bring measurable precipitation.
- Days at 90°F or more
- 27a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 107a normal year
- Days that stay below freezing
- 16high of 32°F or less
- Days with 0.01 inch of precipitation
- 135a normal year
The highest temperature in this station's record (since 1949) is 109°F, on July 8, 2012; the lowest is −18°F, on January 29, 1963.
The wettest calendar year on that record is 1996, with 54.83 in; the snowiest season is 1977–78, with 50.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00464200; records: ACIS (NOAA Regional Climate Centers), station USC00464200. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Hogsett R.C. Byrd Dam?
Over a year 72% of the sunlight that would reach the ground under clear skies gets through the clouds at Hogsett R.C. Byrd Dam, 4.0 kWh per square metre a day. August is the sunniest month (80%) and December the cloudiest (59%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 60% | 1.9 |
| February | 60% | 2.6 |
| March | 65% | 3.7 |
| April | 71% | 5.0 |
| May | 72% | 5.5 |
| June | 78% | 6.2 |
| July | 77% | 5.9 |
| August | 80% | 5.5 |
| September | 78% | 4.5 |
| October | 72% | 3.3 |
| November | 70% | 2.3 |
| December | 59% | 1.6 |
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 many heating and cooling degree days does Hogsett R.C. Byrd Dam record?
A normal year at Hogsett R.C. Byrd Dam brings 4,999 heating degree days, 7% fewer than the median U.S. place (5,373), and 959 cooling degree days, 6% more than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 3,514 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,034 | 0 |
| February | 851 | 0 |
| March | 700 | 1 |
| April | 356 | 11 |
| May | 143 | 64 |
| June | 17 | 193 |
| July | 0 | 295 |
| August | 3 | 261 |
| September | 53 | 121 |
| October | 306 | 13 |
| November | 629 | 0 |
| December | 907 | 0 |
| Year (annual) | 4,999 | 959 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00464200. 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.
Have recent years at Hogsett R.C. Byrd Dam been warmer than normal?
Over 43 complete years from 1951 to 2023, the station's annual mean temperature rose at a fitted 1.7°F per century (+0.10°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Hogsett R.C. Byrd Dam's climate compare?
Hogsett R.C. Byrd Dam is warmer than 42 of the 63 places with their own NOAA record in West Virginia, and wetter than 15. Across the 7,247 U.S. stations with normals, its annual mean of 53.8°F is warmer than 56%.
In the Köppen classification computed from these normals, Hogsett R.C. Byrd Dam is Dfa: continental, 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 Hogsett R.C. Byrd Dam share this climate record?
6 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.
- Bidwell, OH1,124 people · 17 mi N
- Rio Grande, OH724 people · 17 mi NW
- Crown City, OH417 people · 9 mi SW
- Kanauga, OH276 people · 11 mi N
- Vinton, OH223 people · 22 mi N
- Thurman, OH87 people · 20 mi NW
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 Hogsett R.C. Byrd Dam's climate
What is the coldest month at Hogsett R.C. Byrd Dam?
January, with a normal high of 40°F and a normal low of 23°F. The warmest is July (85°F by day, 64°F at night).
Does it snow at Hogsett R.C. Byrd Dam?
Yes. NOAA publishes no 1991-2020 snowfall normal for the station; the nearest record that keeps one, Waterloo (16 miles away), records 14 inches of snow in a normal year.
What is the rainiest month at Hogsett R.C. Byrd Dam?
July, with 4.34 in of precipitation in a normal year; the driest is October with 2.65 in.
What plant hardiness zone is Hogsett R.C. Byrd Dam in?
The USDA's 2023 map puts Hogsett R.C. Byrd Dam in zone 6b in ZIP code 25502, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches 4°F (21 years, 1991-2020): zone 7a.
How late can frost come at Hogsett R.C. Byrd Dam?
In half of years the last 32°F night comes after April 18; 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
- West Virginia climateThe statewide normals and every place in the state
- Gallipolis, OH9 miles from this station, 54.9°F a year
- Southside (3 mi NNW), WV12 miles from this station, 52.3°F a year
- Waterloo, OH16 miles from this station, 52.8°F a year
- Winfield, WV18 miles from this station, 55.6°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made