Murrysville, Pennsylvania climate: Normal weather by month, frost dates and records
Murrysville's normal year runs from 22°F January nights to 86°F July afternoons, with 43.6 inches of precipitation and 25 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 11.3°C, January lows of −6°C, July highs of 30°C, 1,107 mm of precipitation a year.
- NOAA stationMurrysville (2 mi SW)
- Station IDUSC00366111
- Location40.41°N 79.72°W
- Elevation860 ft (262 m)
- From the center4 miles
- Population20,729
On October 23, the normal high in Murrysville is 62°F and the normal low 40°F, and the chance of measurable rain or snow is 40%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Murrysville.
- Jan 38° 22°
- Feb 41° 22°
- Mar 50° 29°
- Apr 64° 39°
- May 74° 51°
- Jun 83° 59°
- Jul 86° 64°
- Aug 84° 62°
- Sep 77° 55°
- Oct 65° 43°
- Nov 52° 33°
- Dec 41° 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 in Murrysville each month?
July is the warmest month, with normal highs of 86°F; January the coldest, with normal lows of 22°F. The most precipitation falls in July (4.83 in), the least in February (2.75 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 38°F | 22°F | 29.6°F | 3.19 | 10.2 | 15 | <1 | 26 | 9 h 30 min |
| February | 41°F | 22°F | 31.3°F | 2.75 | 5.6 | 14 | <1 | 23 | 10 h 40 min |
| March | 50°F | 29°F | 39.6°F | 3.30 | 3.0 | 12 | <1 | 23 | 11 h 50 min |
| April | 64°F | 39°F | 51.3°F | 3.75 | 0.2 | 13 | <1 | 10 | 13 h 10 min |
| May | 74°F | 51°F | 62.5°F | 4.08 | 0.0 | 15 | 2 | 1 | 14 h 20 min |
| June | 83°F | 59°F | 71.0°F | 4.59 | 0.0 | 14 | 5 | <1 | 15 h |
| July | 86°F | 64°F | 74.9°F | 4.83 | 0.0 | 13 | 12 | <1 | 14 h 50 min |
| August | 84°F | 62°F | 73.2°F | 4.18 | 0.0 | 12 | 5 | <1 | 13 h 50 min |
| September | 77°F | 55°F | 65.6°F | 3.44 | 0.0 | 10 | 3 | <1 | 12 h 30 min |
| October | 65°F | 43°F | 53.9°F | 3.36 | 0.0 | 13 | <1 | 4 | 11 h 10 min |
| November | 52°F | 33°F | 42.5°F | 2.88 | 0.7 | 11 | <1 | 20 | 10 h |
| December | 41°F | 27°F | 34.0°F | 3.22 | 5.3 | 14 | <1 | 23 | 9 h 20 min |
| Year (annual) | 63°F | 42°F | 52.4°F | 43.57 | 25.0 | 155 | 27 | 129 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 3°C | −6°C | −1.3°C | 81 mm | 26 cm |
| February | 5°C | −6°C | −0.4°C | 70 mm | 14 cm |
| March | 10°C | −2°C | 4.2°C | 84 mm | 8 cm |
| April | 18°C | 4°C | 10.7°C | 95 mm | 1 cm |
| May | 23°C | 10°C | 16.9°C | 104 mm | 0 cm |
| June | 28°C | 15°C | 21.7°C | 117 mm | 0 cm |
| July | 30°C | 18°C | 23.8°C | 123 mm | 0 cm |
| August | 29°C | 17°C | 22.9°C | 106 mm | 0 cm |
| September | 25°C | 13°C | 18.7°C | 87 mm | 0 cm |
| October | 18°C | 6°C | 12.2°C | 85 mm | 0 cm |
| November | 11°C | 0°C | 5.8°C | 73 mm | 2 cm |
| December | 5°C | −3°C | 1.1°C | 82 mm | 13 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00366111; 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 Murrysville?
Normal highs sit between 65°F and 85°F in May, June, August and September. 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 USC00366111.
When is the last frost in Murrysville?
In Murrysville, the last spring frost (32°F) comes after April 22 in half of years and after May 12 in one year in ten; the first autumn frost comes before October 25 in half of years and before October 10 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 221 year in 10 after May 12; 9 in 10 after April 7
- First autumn frost, half of years before
- October 251 year in 10 before October 10; 9 in 10 before November 6
NOAA puts the median frost-free season at 186 days, and the season without a hard freeze (28°F) at 213 days.
A hard freeze (28°F) comes after April 7 in half of springs and before November 5 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Murrysville in zone 6b across its 3 ZIP code areas (6b in 15668, the largest).
Frost dates for every NOAA station in Pennsylvania · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00366111; 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.
What hardiness zone is each Murrysville ZIP code in?
The USDA's 2023 map gives each ZIP code area one zone. Murrysville's 3 ZIP code areas are all in zone 6b. Each ZIP's frost dates are in the frost tool.
Source: USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; ZIP areas in the place: Census Bureau 2020 ZCTA-to-place relationship file. A ZIP area counts when at least a tenth of its land (and 0.5 km²) lies in the place.
How hot and how cold does it get in Murrysville?
In a normal year in Murrysville, 27 days a year reach 90°F (1 of them 100°F or more), 129 nights fall to 32°F or colder and 155 days bring measurable precipitation.
- Days at 90°F or more
- 27a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 129a normal year
- Days that stay below freezing
- 25high of 32°F or less
- Days with 0.01 inch of precipitation
- 155a normal year
- Days with 1 inch of snow or more
- 10a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00366111.
How sunny is Murrysville?
Over a year 68% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Murrysville, 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 much heating and cooling does Murrysville need?
A normal year in Murrysville brings 5,490 heating degree days, 2% more than the median U.S. place (5,373), and 945 cooling degree days, 4% 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 3,342 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,097 | 0 |
| February | 945 | 0 |
| March | 789 | 0 |
| April | 415 | 4 |
| May | 145 | 66 |
| June | 12 | 191 |
| July | 4 | 309 |
| August | 4 | 258 |
| September | 85 | 103 |
| October | 357 | 13 |
| November | 676 | 0 |
| December | 961 | 0 |
| Year (annual) | 5,490 | 945 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00366111. 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 Murrysville been warmer than normal lately?
2025 averaged 52.4°F, equal to the 1991-2020 normal of 52.4°F. 3 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 53.9°F | +1.5°F | 42.82 | 13.1 |
| 2022 | 52.0°F | −0.4°F | 44.48 | – |
| 2023 | 53.7°F | +1.3°F | 34.92 | 3.7 |
| 2024 | 55.1°F | +2.7°F | 43.46 | – |
| 2025 | 52.4°F | at normal | 45.65 | – |
Source: observed years: ACIS, station USC00366111. A year counts only with all twelve months complete.
How does Murrysville's climate compare?
Murrysville is warmer than 83 of the other 107 places with their own NOAA record in Pennsylvania, and wetter than 47. Across the 7,247 U.S. stations with normals, its annual mean of 52.4°F is warmer than 51%.
In the Köppen classification computed from these normals, Murrysville 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 Murrysville share this climate record?
14 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.
- Monroeville, PA27,966 people · 2 mi NW
- Jeannette, PA8,566 people · 8 mi SE
- Level Green, PA4,450 people · 1 mi S
- Irwin, PA3,798 people · 6 mi S
- Manor, PA3,510 people · 5 mi SE
- Trafford, PA3,236 people · 3 mi SW
- Pitcairn, PA2,984 people · 3 mi W
- Export, PA879 people · 5 mi E
- North Irwin, PA813 people · 5 mi S
- Penn, PA617 people · 7 mi SE
- Wall, PA495 people · 4 mi SW
- Grapeville, PA471 people · 9 mi SE
- Adamsburg, PA143 people · 8 mi SE
- Harrison City, PA117 people · 6 mi SE
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 Murrysville's climate
What is the coldest month in Murrysville?
January, with a normal high of 38°F and a normal low of 22°F. The warmest is July (86°F by day, 64°F at night).
Does it snow in Murrysville?
Yes: 25 inches in a normal year, falling on 24 days with 0.1 inch or more, the most in January (10.2 inches).
What is the rainiest month in Murrysville?
July, with 4.83 in of precipitation in a normal year; the driest is February with 2.75 in.
What plant hardiness zone is Murrysville in?
The USDA's 2023 map puts Murrysville in zone 6b across its 3 ZIP code areas (6b in 15668, the largest).
How late can frost come in Murrysville?
In half of years the last 32°F night comes after April 22; in one year in ten it comes after May 12. Waiting until May 12 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Pennsylvania climateThe statewide normals and every place in the state
- Braddock, PA7 miles from this station, 52.4°F a year
- McKeesport, PA9 miles from this station, 51.7°F a year
- Acmetonia Lock 3, PA10 miles from this station, 50.9°F a year
- West Mifflin, PA11 miles from this station, 52.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made