Laurel Summit, Pennsylvania climate: Climate normals at a NOAA weather station
Laurel Summit's normal year runs from 14°F January nights to 75°F July afternoons, with 56.6 inches of precipitation and 142 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 7.6°C, January lows of −10°C, July highs of 24°C, 1,438 mm of precipitation a year.
- NOAA stationLaurel Summit
- Station IDUSC00364839
- Location40.17°N 79.14°W
- Elevation2,730 ft (832 m)
On October 23, the normal high in Laurel Summit is 55°F and the normal low 37°F, and the chance of measurable rain or snow is 42%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Laurel Summit.
- Jan 31° 14°
- Feb 34° 16°
- Mar 43° 23°
- Apr 56° 34°
- May 65° 45°
- Jun 71° 53°
- Jul 75° 58°
- Aug 74° 57°
- Sep 68° 51°
- Oct 58° 39°
- Nov 46° 29°
- Dec 35° 20°
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 Laurel Summit each month?
July is the warmest month, with normal highs of 75°F; January the coldest, with normal lows of 14°F. The most precipitation falls in June (5.94 in), the least in February (3.50 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 31°F | 14°F | 22.6°F | 4.41 | 38.6 | 19 | <1 | 28 | 9 h 40 min |
| February | 34°F | 16°F | 24.8°F | 3.50 | 37.5 | 15 | <1 | 26 | 10 h 40 min |
| March | 43°F | 23°F | 32.7°F | 4.72 | 21.5 | 15 | <1 | 24 | 11 h 50 min |
| April | 56°F | 34°F | 45.1°F | 4.87 | 6.9 | 15 | <1 | 13 | 13 h 10 min |
| May | 65°F | 45°F | 54.7°F | 5.47 | 0.3 | 15 | <1 | 2 | 14 h 20 min |
| June | 71°F | 53°F | 62.3°F | 5.94 | 0.0 | 14 | <1 | <1 | 15 h |
| July | 75°F | 58°F | 66.4°F | 5.14 | 0.0 | 13 | <1 | <1 | 14 h 50 min |
| August | 74°F | 57°F | 65.3°F | 4.78 | 0.0 | 12 | <1 | <1 | 13 h 50 min |
| September | 68°F | 51°F | 59.4°F | 4.81 | 0.0 | 11 | <1 | <1 | 12 h 30 min |
| October | 58°F | 39°F | 48.4°F | 4.23 | 2.4 | 13 | <1 | 7 | 11 h 10 min |
| November | 46°F | 29°F | 37.4°F | 4.31 | 8.1 | 13 | <1 | 19 | 10 h |
| December | 35°F | 20°F | 27.7°F | 4.43 | 26.9 | 16 | <1 | 27 | 9 h 20 min |
| Year (annual) | 55°F | 37°F | 45.6°F | 56.61 | 142.2 | 170 | <1 | 146 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | −1°C | −10°C | −5.2°C | 112 mm | 98 cm |
| February | 1°C | −9°C | −4.0°C | 89 mm | 95 cm |
| March | 6°C | −5°C | 0.4°C | 120 mm | 55 cm |
| April | 13°C | 1°C | 7.3°C | 124 mm | 18 cm |
| May | 18°C | 7°C | 12.6°C | 139 mm | 1 cm |
| June | 22°C | 12°C | 16.8°C | 151 mm | 0 cm |
| July | 24°C | 15°C | 19.1°C | 131 mm | 0 cm |
| August | 23°C | 14°C | 18.5°C | 121 mm | 0 cm |
| September | 20°C | 10°C | 15.2°C | 122 mm | 0 cm |
| October | 14°C | 4°C | 9.1°C | 107 mm | 6 cm |
| November | 8°C | −2°C | 3.0°C | 109 mm | 21 cm |
| December | 2°C | −7°C | −2.4°C | 113 mm | 68 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00364839; 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 Laurel Summit?
Normal highs sit between 65°F and 85°F in June, July, August and September. Of those, September has the fewest days with rain (11).
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 USC00364839.
When is the last frost at Laurel Summit?
In Laurel Summit, the last spring frost (32°F) comes after May 6 in half of years and after May 23 in one year in ten; the first autumn frost comes before October 12 in half of years and before October 1 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 61 year in 10 after May 23; 9 in 10 after April 22
- First autumn frost, half of years before
- October 121 year in 10 before October 1; 9 in 10 before October 26
NOAA puts the median frost-free season at 159 days, and the season without a hard freeze (28°F) at 179 days.
A hard freeze (28°F) comes after April 27 in half of springs and before October 24 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Laurel Summit in zone 6a in ZIP code 15655, 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 6a: the coldest night of a typical year reaches −7°F (17 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 USC00364839; 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 Laurel Summit?
In a normal year in Laurel Summit, a 90°F day is rare, 146 nights fall to 32°F or colder and 170 days bring measurable precipitation.
- Days at 90°F or more
- fewer than 1a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 146a normal year
- Days that stay below freezing
- 60high of 32°F or less
- Days with 0.01 inch of precipitation
- 170a normal year
- Days with 1 inch of snow or more
- 42a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00364839.
How sunny is it at Laurel Summit?
Over a year 68% of the sunlight that would reach the ground under clear skies gets through the clouds at Laurel Summit, 3.7 kWh per square metre a day. August is the sunniest month (76%) and December the cloudiest (51%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 53% | 1.6 |
| February | 58% | 2.4 |
| March | 61% | 3.4 |
| April | 66% | 4.6 |
| May | 69% | 5.3 |
| June | 73% | 5.9 |
| July | 76% | 5.9 |
| August | 76% | 5.3 |
| September | 75% | 4.3 |
| October | 66% | 2.9 |
| November | 65% | 2.0 |
| December | 51% | 1.3 |
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 Laurel Summit record?
A normal year at Laurel Summit brings 7,281 heating degree days, 36% more than the median U.S. place (5,373), and 229 cooling degree days, 75% fewer than the median (908). Eight months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,036 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,313 | 0 |
| February | 1,126 | 0 |
| March | 1,001 | 0 |
| April | 600 | 3 |
| May | 331 | 12 |
| June | 119 | 38 |
| July | 42 | 84 |
| August | 56 | 65 |
| September | 193 | 24 |
| October | 516 | 3 |
| November | 827 | 0 |
| December | 1,158 | 0 |
| Year (annual) | 7,281 | 229 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00364839. 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 Laurel Summit been warmer than normal?
2025 averaged 46.6°F, 1.0°F above the 1991-2020 normal of 45.6°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 46.9°F | +1.3°F | 53.76 | 98.1 |
| 2022 | 45.9°F | +0.3°F | 54.40 | 135.3 |
| 2023 | 47.7°F | +2.1°F | 60.64 | 73.1 |
| 2024 | 48.7°F | +3.1°F | 57.16 | 120.6 |
| 2025 | 46.6°F | +1.0°F | 63.65 | 136.6 |
Source: observed years: ACIS, station USC00364839. A year counts only with all twelve months complete.
How does Laurel Summit's climate compare?
Laurel Summit is warmer than 6 of the 108 places with their own NOAA record in Pennsylvania, and wetter than 105. Across the 7,247 U.S. stations with normals, its annual mean of 45.6°F is warmer than 22%.
In the Köppen classification computed from these normals, Laurel Summit is Dfb: continental, no dry season, warm 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 Laurel Summit share this climate record?
9 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.
- Boswell, PA1,197 people · 6 mi E
- Friedens, PA974 people · 11 mi SE
- Jennerstown, PA664 people · 4 mi E
- Jerome, PA645 people · 9 mi E
- Hooversville, PA607 people · 12 mi E
- Gray, PA348 people · 4 mi SE
- Stoystown, PA289 people · 11 mi SE
- Acosta, PA225 people · 6 mi SE
- Edie, PA162 people · 6 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 Laurel Summit's climate
What is the coldest month at Laurel Summit?
January, with a normal high of 31°F and a normal low of 14°F. The warmest is July (75°F by day, 58°F at night).
Does it snow at Laurel Summit?
Yes: 142 inches in a normal year, falling on 60 days with 0.1 inch or more, the most in January (38.6 inches).
What is the rainiest month at Laurel Summit?
June, with 5.94 in of precipitation in a normal year; the driest is February with 3.50 in.
What plant hardiness zone is Laurel Summit in?
The USDA's 2023 map puts Laurel Summit in zone 6a in ZIP code 15655, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches −7°F (17 years, 1991-2020): zone 6a.
How late can frost come at Laurel Summit?
In half of years the last 32°F night comes after May 6; in one year in ten it comes after May 23. Waiting until May 23 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Pennsylvania climateThe statewide normals and every place in the state
- Laurel Mountain, PA3 miles from this station, 49.6°F a year
- Rector (3 mi SSW), PA7 miles from this station, 50.2°F a year
- Hidden Valley, PA11 miles from this station, 47.1°F a year
- Donegal, PA14 miles from this station, 49.6°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made