Waynesburg, Pennsylvania climate: Normal weather by month, frost dates and records
Waynesburg's normal year runs from 19°F January nights to 83°F July afternoons, with 43.1 inches of precipitation and 30 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 10.6°C, January lows of −7°C, July highs of 29°C, 1,094 mm of precipitation a year.
- NOAA stationWaynesburg (1 mi E)
- Station IDUSC00369367
- Location39.90°N 80.17°W
- Elevation940 ft (287 m)
- From the center1 miles
- Population3,701
On October 23, the normal high in Waynesburg is 63°F and the normal low 37°F, and the chance of measurable rain or snow is 38%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Waynesburg.
- Jan 39° 19°
- Feb 42° 21°
- Mar 51° 27°
- Apr 64° 36°
- May 73° 47°
- Jun 80° 56°
- Jul 83° 60°
- Aug 82° 59°
- Sep 77° 51°
- Oct 65° 40°
- Nov 53° 30°
- Dec 43° 25°
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 Waynesburg each month?
July is the warmest month, with normal highs of 83°F; January the coldest, with normal lows of 19°F. The most precipitation falls in May (4.34 in), the least in February (2.84 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 39°F | 19°F | 29.0°F | 3.42 | 9.5 | 15 | <1 | 27 | 9 h 40 min |
| February | 42°F | 21°F | 31.2°F | 2.84 | 8.1 | 13 | <1 | 25 | 10 h 40 min |
| March | 51°F | 27°F | 39.1°F | 3.74 | 5.6 | 13 | <1 | 22 | 11 h 50 min |
| April | 64°F | 36°F | 50.1°F | 3.38 | 0.4 | 14 | <1 | 11 | 13 h 10 min |
| May | 73°F | 47°F | 59.9°F | 4.34 | 0.0 | 14 | <1 | 2 | 14 h 20 min |
| June | 80°F | 56°F | 67.9°F | 4.17 | 0.0 | 13 | 1 | <1 | 15 h |
| July | 83°F | 60°F | 71.9°F | 4.31 | 0.0 | 11 | 4 | <1 | 14 h 50 min |
| August | 82°F | 59°F | 70.6°F | 3.88 | 0.0 | 11 | 3 | <1 | 13 h 50 min |
| September | 77°F | 51°F | 64.1°F | 3.51 | 0.0 | 10 | 1 | <1 | 12 h 30 min |
| October | 65°F | 40°F | 52.4°F | 3.25 | 0.2 | 11 | <1 | 7 | 11 h 10 min |
| November | 53°F | 30°F | 41.7°F | 2.94 | 0.7 | 12 | <1 | 19 | 10 h |
| December | 43°F | 25°F | 33.7°F | 3.29 | 5.6 | 14 | <1 | 25 | 9 h 20 min |
| Year (annual) | 63°F | 39°F | 51.0°F | 43.07 | 30.1 | 152 | 10 | 138 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 4°C | −7°C | −1.7°C | 87 mm | 24 cm |
| February | 5°C | −6°C | −0.4°C | 72 mm | 21 cm |
| March | 11°C | −3°C | 3.9°C | 95 mm | 14 cm |
| April | 18°C | 2°C | 10.1°C | 86 mm | 1 cm |
| May | 23°C | 8°C | 15.5°C | 110 mm | 0 cm |
| June | 27°C | 13°C | 19.9°C | 106 mm | 0 cm |
| July | 29°C | 16°C | 22.2°C | 109 mm | 0 cm |
| August | 28°C | 15°C | 21.4°C | 99 mm | 0 cm |
| September | 25°C | 11°C | 17.8°C | 89 mm | 0 cm |
| October | 18°C | 4°C | 11.3°C | 83 mm | 1 cm |
| November | 12°C | −1°C | 5.4°C | 75 mm | 2 cm |
| December | 6°C | −4°C | 0.9°C | 84 mm | 14 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00369367; 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 Waynesburg?
Normal highs sit between 65°F and 85°F in May, June, July, August, September and October. Of those, September has the fewest days with rain (10).
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 USC00369367.
When is the last frost in Waynesburg?
In Waynesburg, the last spring frost (32°F) comes after May 3 in half of years and after May 21 in one year in ten; the first autumn frost comes before October 15 in half of years and before October 2 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
- May 31 year in 10 after May 21; 9 in 10 after April 19
- First autumn frost, half of years before
- October 151 year in 10 before October 2; 9 in 10 before October 28
NOAA puts the median frost-free season at 164 days, and the season without a hard freeze (28°F) at 184 days.
A hard freeze (28°F) comes after April 22 in half of springs and before October 25 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Waynesburg in zone 6b in ZIP code 15370, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Waynesburg's NOAA station is in zone 6b: the coldest night of a typical year reaches −5°F (28 complete years).
Frost dates for every NOAA station in Pennsylvania · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00369367; 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 in Waynesburg?
In a normal year in Waynesburg, 10 days a year reach 90°F, 138 nights fall to 32°F or colder and 152 days bring measurable precipitation.
- Days at 90°F or more
- 10a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 138a normal year
- Days that stay below freezing
- 27high of 32°F or less
- Days with 0.01 inch of precipitation
- 152a normal year
- Days with 1 inch of snow or more
- 9a normal year
The highest temperature in this station's record (since 1948) is 102°F, on July 17, 1988; the lowest is −25°F, on January 30, 1963.
The wettest calendar year on that record is 2011, with 60.92 in; the snowiest season is 1993–94, with 70.9 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00369367; records: ACIS (NOAA Regional Climate Centers), station USC00369367. Records use complete months only; a month missing more than three days is left out.
How sunny is Waynesburg?
Over a year 70% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Waynesburg, 3.9 kWh per square metre a day. August is the sunniest month (78%) and December the cloudiest (55%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 55% | 1.7 |
| February | 59% | 2.5 |
| March | 63% | 3.5 |
| April | 68% | 4.7 |
| May | 70% | 5.4 |
| June | 75% | 6.0 |
| July | 76% | 5.8 |
| August | 78% | 5.4 |
| September | 77% | 4.5 |
| October | 69% | 3.1 |
| November | 67% | 2.1 |
| December | 55% | 1.4 |
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 Waynesburg need?
A normal year in Waynesburg brings 5,749 heating degree days, 7% more than the median U.S. place (5,373), and 663 cooling degree days, 27% fewer 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 2,943 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,117 | 0 |
| February | 946 | 0 |
| March | 805 | 0 |
| April | 452 | 5 |
| May | 201 | 41 |
| June | 43 | 130 |
| July | 6 | 220 |
| August | 11 | 184 |
| September | 101 | 74 |
| October | 399 | 9 |
| November | 699 | 0 |
| December | 969 | 0 |
| Year (annual) | 5,749 | 663 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00369367. 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.
Has Waynesburg been warmer than normal lately?
2025 averaged 51.1°F, 0.1°F above the 1991-2020 normal of 51.0°F. 4 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 52.2°F | +1.2°F | 42.17 | 18.4 |
| 2022 | 50.4°F | −0.6°F | 44.43 | 26.8 |
| 2023 | 52.3°F | +1.3°F | 40.11 | 4.6 |
| 2024 | 53.7°F | +2.7°F | 37.47 | 11.4 |
| 2025 | 51.1°F | +0.1°F | 33.85 | 28.4 |
Over 57 complete years from 1963 to 2025, the station's annual mean temperature rose at a fitted 4.2°F per century (+0.23°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00369367; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Waynesburg's climate compare?
Waynesburg is warmer than 57 of the other 107 places with their own NOAA record in Pennsylvania, and wetter than 39. Across the 7,247 U.S. stations with normals, its annual mean of 51.0°F is warmer than 45%.
In the Köppen classification computed from these normals, Waynesburg 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 Waynesburg share this climate record?
12 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.
- Morrisville, PA874 people · 0 mi NW
- Mather, PA567 people · 5 mi NE
- Fredericktown, PA555 people · 11 mi NE
- West Waynesburg, PA431 people · 2 mi W
- Marianna, PA388 people · 8 mi N
- Millsboro, PA313 people · 11 mi NE
- Jefferson, PA238 people · 6 mi E
- Rogersville, PA212 people · 6 mi W
- Clarksville, PA185 people · 8 mi NE
- East Marianna, PA184 people · 9 mi NE
- Blacksville, WV119 people · 13 mi S
- Pentress, WV0 people · 13 mi S
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 Waynesburg's climate
What is the coldest month in Waynesburg?
January, with a normal high of 39°F and a normal low of 19°F. The warmest is July (83°F by day, 60°F at night).
Does it snow in Waynesburg?
Yes: 30 inches in a normal year, falling on 25 days with 0.1 inch or more, the most in January (9.5 inches).
What is the rainiest month in Waynesburg?
May, with 4.34 in of precipitation in a normal year; the driest is February with 2.84 in.
What plant hardiness zone is Waynesburg in?
The USDA's 2023 map puts Waynesburg in zone 6b in ZIP code 15370, the nearest ZIP area. By the same method at Waynesburg's NOAA station, the coldest night of a typical year reaches −5°F (28 years, 1991-2020): zone 6b.
How late can frost come in Waynesburg?
In half of years the last 32°F night comes after May 3; in one year in ten it comes after May 21. Waiting until May 21 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Pennsylvania climateThe statewide normals and every place in the state
- Grays Landing, PA16 miles from this station, 51.7°F a year
- Point Marion, PA18 miles from this station, 52.0°F a year
- Washington, PA19 miles from this station, 51.4°F a year
- Lake Lynn, WV21 miles from this station, 52.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made