Landisville, Pennsylvania climate: Normal weather by month, frost dates and records
Landisville's normal year runs from 19°F January nights to 85°F July afternoons, with 45.2 inches of precipitation and 23 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, 1,147 mm of precipitation a year.
- NOAA stationLandisville (2 mi NW)
- Station IDUSC00364778
- Location40.12°N 76.43°W
- Elevation360 ft (110 m)
- From the center2 miles
- Population (census place)2,479
On October 23, the normal high in Landisville is 62°F and the normal low 38°F, and the chance of measurable rain or snow is 30%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Landisville.
- Jan 37° 19°
- Feb 41° 20°
- Mar 50° 28°
- Apr 63° 37°
- May 73° 48°
- Jun 81° 58°
- Jul 85° 61°
- Aug 83° 59°
- Sep 76° 52°
- Oct 65° 41°
- Nov 53° 32°
- Dec 42° 24°
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 Landisville each month?
July is the warmest month, with normal highs of 85°F; January the coldest, with normal lows of 19°F. The most precipitation falls in July (4.84 in), the least in February (2.44 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 37°F | 19°F | 28.4°F | 3.06 | 7.1 | 10 | <1 | 26 | 9 h 40 min |
| February | 41°F | 20°F | 30.5°F | 2.44 | 6.7 | 9 | <1 | 24 | 10 h 40 min |
| March | 50°F | 28°F | 38.9°F | 3.61 | 4.5 | 10 | <1 | 20 | 11 h 50 min |
| April | 63°F | 37°F | 50.2°F | 3.56 | 0.3 | 11 | <1 | 8 | 13 h 10 min |
| May | 73°F | 48°F | 60.4°F | 3.87 | 0.0 | 13 | 1 | 1 | 14 h 20 min |
| June | 81°F | 58°F | 69.1°F | 4.33 | 0.0 | 11 | 4 | <1 | 15 h |
| July | 85°F | 61°F | 72.9°F | 4.84 | 0.0 | 11 | 8 | <1 | 14 h 50 min |
| August | 83°F | 59°F | 71.0°F | 4.04 | 0.0 | 11 | 5 | <1 | 13 h 50 min |
| September | 76°F | 52°F | 64.4°F | 4.68 | 0.0 | 10 | 2 | <1 | 12 h 30 min |
| October | 65°F | 41°F | 52.9°F | 4.17 | 0.0 | 10 | <1 | 5 | 11 h 10 min |
| November | 53°F | 32°F | 42.2°F | 3.24 | 0.7 | 8 | <1 | 16 | 10 h |
| December | 42°F | 24°F | 32.9°F | 3.33 | 3.9 | 10 | <1 | 24 | 9 h 20 min |
| Year (annual) | 62°F | 40°F | 51.1°F | 45.17 | 23.2 | 124 | 20 | 122 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 3°C | −7°C | −2.0°C | 78 mm | 18 cm |
| February | 5°C | −6°C | −0.8°C | 62 mm | 17 cm |
| March | 10°C | −2°C | 3.8°C | 92 mm | 11 cm |
| April | 17°C | 3°C | 10.1°C | 90 mm | 1 cm |
| May | 23°C | 9°C | 15.8°C | 98 mm | 0 cm |
| June | 27°C | 14°C | 20.6°C | 110 mm | 0 cm |
| July | 29°C | 16°C | 22.7°C | 123 mm | 0 cm |
| August | 28°C | 15°C | 21.7°C | 103 mm | 0 cm |
| September | 25°C | 11°C | 18.0°C | 119 mm | 0 cm |
| October | 18°C | 5°C | 11.6°C | 106 mm | 0 cm |
| November | 12°C | 0°C | 5.7°C | 82 mm | 2 cm |
| December | 5°C | −4°C | 0.5°C | 85 mm | 10 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00364778; 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 Landisville?
Normal highs sit between 65°F and 85°F in May, June, July, 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 USC00364778.
When is the last frost in Landisville?
In Landisville, the last spring frost (32°F) comes after April 30 in half of years and after May 13 in one year in ten; the first autumn frost comes before October 10 in half of years and before September 29 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 301 year in 10 after May 13; 9 in 10 after April 16
- First autumn frost, half of years before
- October 101 year in 10 before September 29; 9 in 10 before October 26
NOAA puts the median frost-free season at 162 days, and the season without a hard freeze (28°F) at 186 days.
A hard freeze (28°F) comes after April 18 in half of springs and before October 24 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Landisville in zone 7a in ZIP code 17538. By the map's own method, the average of each year's coldest night over 1991-2020, Landisville's NOAA station is in zone 6b: the coldest night of a typical year reaches −4°F (29 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 Pennsylvania · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00364778; 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 Landisville?
In a normal year in Landisville, 20 days a year reach 90°F, 122 nights fall to 32°F or colder and 124 days bring measurable precipitation.
- Days at 90°F or more
- 20a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 122a normal year
- Days that stay below freezing
- 18high of 32°F or less
- Days with 0.01 inch of precipitation
- 124a normal year
- Days with 1 inch of snow or more
- 7a normal year
The highest temperature in this station's record (since 1952) is 102°F, on July 5, 1966; the lowest is −24°F, on January 21, 1994.
The wettest calendar year on that record is 2004, with 60.37 in; the snowiest season is 1960–61, with 60.3 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00364778; records: ACIS (NOAA Regional Climate Centers), station USC00364778. Records use complete months only; a month missing more than three days is left out.
How sunny is Landisville?
Over a year 71% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Landisville, 3.9 kWh per square metre a day. July is the sunniest month (79%) and December the cloudiest (60%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 63% | 1.8 |
| February | 66% | 2.7 |
| March | 66% | 3.6 |
| April | 69% | 4.8 |
| May | 69% | 5.3 |
| June | 75% | 6.0 |
| July | 79% | 6.0 |
| August | 76% | 5.2 |
| September | 74% | 4.2 |
| October | 68% | 2.9 |
| November | 69% | 2.1 |
| December | 60% | 1.5 |
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 Landisville need?
A normal year in Landisville brings 5,747 heating degree days, 7% more than the median U.S. place (5,373), and 729 cooling degree days, 20% 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 3,008 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,135 | 0 |
| February | 966 | 0 |
| March | 808 | 0 |
| April | 450 | 4 |
| May | 185 | 42 |
| June | 30 | 153 |
| July | 3 | 248 |
| August | 11 | 196 |
| September | 96 | 78 |
| October | 385 | 8 |
| November | 686 | 0 |
| December | 994 | 0 |
| Year (annual) | 5,747 | 729 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00364778. 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 Landisville been warmer than normal lately?
2024 averaged 54.8°F, 3.7°F above the 1991-2020 normal of 51.1°F.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2024 | 54.8°F | +3.7°F | 37.07 | 16.6 |
Over 67 complete years from 1953 to 2024, the station's annual mean temperature rose at a fitted 4.3°F per century (+0.24°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00364778; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Landisville's climate compare?
Landisville is warmer than 59 of the other 107 places with their own NOAA record in Pennsylvania, and wetter than 63. Across the 7,247 U.S. stations with normals, its annual mean of 51.1°F is warmer than 45%.
In the Köppen classification computed from these normals, Landisville 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 Landisville share this climate record?
11 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.
- Columbia, PA10,399 people · 7 mi SW
- Mount Joy, PA8,364 people · 4 mi W
- Manheim, PA5,011 people · 3 mi NE
- Maytown, PA4,321 people · 8 mi W
- Salunga, PA3,066 people · 2 mi S
- Mountville, PA3,000 people · 5 mi S
- Marietta, PA2,952 people · 8 mi SW
- Rheems, PA2,526 people · 8 mi W
- Wrightsville, PA2,269 people · 9 mi SW
- Penryn, PA995 people · 6 mi NE
- Rohrerstown, PA732 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 Landisville's climate
What is the coldest month in Landisville?
January, with a normal high of 37°F and a normal low of 19°F. The warmest is July (85°F by day, 61°F at night).
Does it snow in Landisville?
Yes: 23 inches in a normal year, falling on 14 days with 0.1 inch or more, the most in January (7.1 inches).
What is the rainiest month in Landisville?
July, with 4.84 in of precipitation in a normal year; the driest is February with 2.44 in.
What plant hardiness zone is Landisville in?
The USDA's 2023 map puts Landisville in zone 7a in ZIP code 17538. By the same method at Landisville's NOAA station, the coldest night of a typical year reaches −4°F (29 years, 1991-2020): zone 6b.
How late can frost come in Landisville?
In half of years the last 32°F night comes after April 30; in one year in ten it comes after May 13. Waiting until May 13 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Pennsylvania climateThe statewide normals and every place in the state
- Lancaster, PA7 miles from this station, 53.3°F a year
- Safe Harbor Dam, PA14 miles from this station, 54.6°F a year
- Lebanon, PA15 miles from this station, 52.3°F a year
- Middletown, PA19 miles from this station, 54.3°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made