Acmetonia Lock 3, Pennsylvania climate: Climate normals at a NOAA weather station
Acmetonia Lock 3's normal year runs from 19°F January nights to 83°F July afternoons, with 44.5 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 10.5°C, January lows of −7°C, July highs of 28°C, 1,131 mm of precipitation a year.
- NOAA stationAcmetonia Lock 3
- Station IDUSC00360022
- Location40.54°N 79.82°W
- Elevation748 ft (228 m)
On October 23, the normal high in Acmetonia Lock 3 is 60°F and the normal low 40°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 Acmetonia Lock 3.
- Jan 36° 19°
- Feb 40° 21°
- Mar 49° 28°
- Apr 62° 38°
- May 72° 49°
- Jun 79° 58°
- Jul 83° 62°
- Aug 82° 61°
- Sep 76° 54°
- Oct 64° 43°
- Nov 51° 32°
- Dec 42° 26°
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 Acmetonia Lock 3 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 July (4.54 in), the least in February (2.87 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 36°F | 19°F | 27.6°F | 3.38 | 16 | <1 | 27 | 9 h 30 min |
| February | 40°F | 21°F | 30.3°F | 2.87 | 14 | <1 | 24 | 10 h 40 min |
| March | 49°F | 28°F | 38.1°F | 3.68 | 13 | <1 | 20 | 11 h 50 min |
| April | 62°F | 38°F | 49.9°F | 3.70 | 14 | <1 | 6 | 13 h 10 min |
| May | 72°F | 49°F | 60.2°F | 3.91 | 13 | 1 | 1 | 14 h 20 min |
| June | 79°F | 58°F | 68.4°F | 4.45 | 12 | 2 | <1 | 15 h |
| July | 83°F | 62°F | 72.7°F | 4.54 | 11 | 8 | <1 | 14 h 50 min |
| August | 82°F | 61°F | 71.2°F | 3.56 | 10 | 2 | <1 | 13 h 50 min |
| September | 76°F | 54°F | 64.6°F | 4.18 | 10 | 1 | <1 | 12 h 30 min |
| October | 64°F | 43°F | 53.1°F | 3.32 | 11 | <1 | 2 | 11 h 10 min |
| November | 51°F | 32°F | 41.6°F | 3.26 | 12 | <1 | 16 | 10 h |
| December | 42°F | 26°F | 33.6°F | 3.66 | 15 | <1 | 22 | 9 h 20 min |
| Year (annual) | 61°F | 41°F | 50.9°F | 44.51 | 150 | 15 | 117 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 2°C | −7°C | −2.4°C | 86 mm |
| February | 4°C | −6°C | −0.9°C | 73 mm |
| March | 9°C | −2°C | 3.4°C | 93 mm |
| April | 17°C | 3°C | 9.9°C | 94 mm |
| May | 22°C | 9°C | 15.7°C | 99 mm |
| June | 26°C | 14°C | 20.2°C | 113 mm |
| July | 28°C | 17°C | 22.6°C | 115 mm |
| August | 28°C | 16°C | 21.8°C | 90 mm |
| September | 24°C | 12°C | 18.1°C | 106 mm |
| October | 18°C | 6°C | 11.7°C | 84 mm |
| November | 11°C | 0°C | 5.3°C | 83 mm |
| December | 5°C | −4°C | 0.9°C | 93 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Murrysville (10 miles away), gets 25 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00360022; 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 Acmetonia Lock 3?
Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, August 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 USC00360022.
When is the last frost at Acmetonia Lock 3?
In Acmetonia Lock 3, the last spring frost (32°F) comes after April 16 in half of years and after May 4 in one year in ten; the first autumn frost comes before November 1 in half of years and before October 18 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 161 year in 10 after May 4; 9 in 10 after March 31
- First autumn frost, half of years before
- November 11 year in 10 before October 18; 9 in 10 before November 13
NOAA puts the median frost-free season at 197 days, and the season without a hard freeze (28°F) at 222 days.
A hard freeze (28°F) comes after April 3 in half of springs and before November 11 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Acmetonia Lock 3 in zone 6b in ZIP code 15049, the nearest ZIP area.
Frost dates for every NOAA station in Pennsylvania · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00360022; 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 at Acmetonia Lock 3?
In a normal year in Acmetonia Lock 3, 15 days a year reach 90°F, 117 nights fall to 32°F or colder and 150 days bring measurable precipitation.
- Days at 90°F or more
- 15a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 117a normal year
- Days that stay below freezing
- 29high of 32°F or less
- Days with 0.01 inch of precipitation
- 150a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00360022.
How sunny is it at Acmetonia Lock 3?
Over a year 68% of the sunlight that would reach the ground under clear skies gets through the clouds at Acmetonia Lock 3, 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 Acmetonia Lock 3 record?
A normal year at Acmetonia Lock 3 brings 5,811 heating degree days, 8% more than the median U.S. place (5,373), and 709 cooling degree days, 22% 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 3,002 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,159 | 0 |
| February | 973 | 0 |
| March | 836 | 0 |
| April | 457 | 2 |
| May | 191 | 40 |
| June | 31 | 131 |
| July | 4 | 243 |
| August | 11 | 203 |
| September | 92 | 80 |
| October | 379 | 9 |
| November | 703 | 0 |
| December | 975 | 0 |
| Year (annual) | 5,811 | 709 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00360022. 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 Acmetonia Lock 3's climate compare?
Acmetonia Lock 3 is warmer than 56 of the 108 places with their own NOAA record in Pennsylvania, and wetter than 60. Across the 7,247 U.S. stations with normals, its annual mean of 50.9°F is warmer than 44%.
In the Köppen classification computed from these normals, Acmetonia Lock 3 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 Acmetonia Lock 3 share this climate record?
16 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.
- Plum, PA26,420 people · 4 mi SE
- Allison Park, PA22,108 people · 8 mi W
- Oakmont, PA6,628 people · 2 mi SW
- Fox Chapel, PA5,185 people · 4 mi W
- Springdale, PA3,272 people · 2 mi E
- Sharpsburg, PA3,063 people · 6 mi SW
- Gibsonia, PA2,952 people · 10 mi NW
- Aspinwall, PA2,803 people · 5 mi SW
- Bakerstown, PA2,780 people · 10 mi NW
- Verona, PA2,403 people · 3 mi SW
- Cheswick, PA1,611 people · 1 mi NE
- Blawnox, PA1,400 people · 4 mi SW
- Russellton, PA1,237 people · 5 mi N
- Dorseyville, PA1,070 people · 5 mi NW
- Harwick, PA866 people · 1 mi N
- Bairdford, PA650 people · 7 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 Acmetonia Lock 3's climate
What is the coldest month at Acmetonia Lock 3?
January, with a normal high of 36°F and a normal low of 19°F. The warmest is July (83°F by day, 62°F at night).
Does it snow at Acmetonia Lock 3?
Yes. NOAA publishes no 1991-2020 snowfall normal for the station; the nearest record that keeps one, Murrysville (10 miles away), records 25 inches of snow in a normal year.
What is the rainiest month at Acmetonia Lock 3?
July, with 4.54 in of precipitation in a normal year; the driest is February with 2.87 in.
What plant hardiness zone is Acmetonia Lock 3 in?
The USDA's 2023 map puts Acmetonia Lock 3 in zone 6b in ZIP code 15049, the nearest ZIP area.
How late can frost come at Acmetonia Lock 3?
In half of years the last 32°F night comes after April 16; in one year in ten it comes after May 4. Waiting until May 4 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Pennsylvania climateThe statewide normals and every place in the state
- Natrona, PA7 miles from this station, 51.5°F a year
- Murrysville, PA10 miles from this station, 52.4°F a year
- Braddock, PA10 miles from this station, 52.4°F a year
- Schenley, PA13 miles from this station, 51.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made