Williamsport weather in April: Williamsport, Pennsylvania: normal highs, lows, rain and records for April
Williamsport in April has a normal high of 62°F and a normal low of 39°F, a daily mean of 50°F, rising from 55°F on the 1st to 68°F by the 30th. Measurable precipitation falls on 12 days in a normal April, 3.62 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 17°C and low of 4°C, 92 mm of precipitation and 2 cm of snow in April.
- NOAA stationWilliamsport Regional Airport
- Station IDUSW00014778
- Location41.24°N 76.92°W
- Elevation520 ft (159 m)
- Population27,628
- Jan 35° 20°
- Feb 39° 22°
- Mar 48° 29°
- Apr 62° 39°
- May 72° 49°
- Jun 81° 58°
- Jul 85° 63°
- Aug 83° 61°
- Sep 75° 54°
- Oct 63° 43°
- Nov 51° 33°
- Dec 40° 26°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Williamsport in April?
The normal high is 62°F and the normal low 39°F, for a daily mean of 50.3°F. April is 11.6°F warmer than March and 10.5°F cooler than May. April is the 7th warmest month of the year in Williamsport and the 7th wettest. Across the month the normal high rises 13°F, from 55°F on April 1 to 68°F on April 30. From one year to the next April's mean temperature typically moves about 2.6°F either way (NOAA's standard deviation), so roughly two Aprils in three average between 48°F and 53°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 43%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| April 1 | 55°F | 34°F | 40% | 24% |
| April 8 | 58°F | 36°F | 40% | 24% |
| April 15 | 62°F | 39°F | 41% | 25% |
| April 22 | 65°F | 41°F | 42% | 25% |
| April 30 | 68°F | 44°F | 43% | 25% |
Every day of April: normal high, low and chance of precipitation (warmest afternoon April 30, coldest night April 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| April 1 | 55°F | 34°F | 40% | 24% | 12 h 40 min |
| April 2 | 56°F | 34°F | 40% | 24% | 12 h 40 min |
| April 3 | 56°F | 35°F | 40% | 24% | 12 h 40 min |
| April 4 | 57°F | 35°F | 40% | 24% | 12 h 50 min |
| April 5 | 57°F | 35°F | 40% | 24% | 12 h 50 min |
| April 6 | 57°F | 36°F | 40% | 24% | 12 h 50 min |
| April 7 | 58°F | 36°F | 40% | 24% | 13 h |
| April 8 | 58°F | 36°F | 40% | 24% | 13 h |
| April 9 | 59°F | 37°F | 40% | 24% | 13 h |
| April 10 | 59°F | 37°F | 40% | 24% | 13 h |
| April 11 | 60°F | 38°F | 40% | 24% | 13 h 10 min |
| April 12 | 60°F | 38°F | 41% | 25% | 13 h 10 min |
| April 13 | 61°F | 38°F | 41% | 25% | 13 h 10 min |
| April 14 | 61°F | 39°F | 41% | 25% | 13 h 10 min |
| April 15 | 62°F | 39°F | 41% | 25% | 13 h 20 min |
| April 16 | 62°F | 39°F | 41% | 25% | 13 h 20 min |
| April 17 | 63°F | 40°F | 41% | 25% | 13 h 20 min |
| April 18 | 63°F | 40°F | 41% | 25% | 13 h 20 min |
| April 19 | 63°F | 40°F | 41% | 25% | 13 h 30 min |
| April 20 | 64°F | 41°F | 42% | 25% | 13 h 30 min |
| April 21 | 64°F | 41°F | 42% | 25% | 13 h 30 min |
| April 22 | 65°F | 41°F | 42% | 25% | 13 h 30 min |
| April 23 | 65°F | 42°F | 42% | 25% | 13 h 40 min |
| April 24 | 66°F | 42°F | 42% | 25% | 13 h 40 min |
| April 25 | 66°F | 42°F | 42% | 25% | 13 h 40 min |
| April 26 | 66°F | 43°F | 42% | 25% | 13 h 40 min |
| April 27 | 67°F | 43°F | 42% | 25% | 13 h 50 min |
| April 28 | 67°F | 43°F | 42% | 25% | 13 h 50 min |
| April 29 | 67°F | 44°F | 43% | 25% | 13 h 50 min |
| April 30 | 68°F | 44°F | 43% | 25% | 13 h 50 min |
- Normal high
- 62°FApril average
- Normal low
- 39°FApril average
- Precipitation
- 3.62 inmonth total
- Days with precipitation
- 120.01 inch or more
- Snowfall
- 0.8 inmonth total
- Nights at 32°F or colder
- 7
- Daylight
- 12 h 40 min to 13 h 50 minApril 1 to April 30
- Days at 70°F or more
- 7
- Days at 80°F or more
- 2
- Sunshine
- 66%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014778; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Williamsport in April?
On a given April day the chance of 0.01 inch or more is 41% on average, highest around April 30 (43%). In all, 3.62 in falls on 12 days of a normal April, 1 of them with an inch or more.
In a normal April in Williamsport, 7 nights fall to freezing and snowfall averages 0.8 inches.
Snow falls on 1 day in a normal April.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014778.
How humid and windy is Williamsport in April?
At 3 p.m. the normal temperature is 65°F with 40% relative humidity and a dew point of 40°F; at 6 a.m. it is 46°F with 79% humidity. The wind averages 6.8 mph, most often from the west in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 46°F | 40°F | 79% | 4.4 mph | 51% |
| 9 a.m. | 55°F | 41°F | 60% | 6.7 mph | 50% |
| noon | 62°F | 40°F | 45% | 8.9 mph | 47% |
| 3 p.m. | 65°F | 40°F | 40% | 9.6 mph | 48% |
| 6 p.m. | 63°F | 40°F | 42% | 8.7 mph | 49% |
| 9 p.m. | 56°F | 41°F | 58% | 5.9 mph | 57% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014778. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for April in Williamsport?
The warmest April temperature on Williamsport's official record (since 1895) is 96°F, on April 24, 1925; the coldest is 8°F, on April 1, 1923. The wettest April brought 10.04 in (2011); the snowiest, 13.8 inches (1982).
The April mean against the 1991-2020 normal of 50.3°F: 2021 51.4°F (+1.1), 2022 49.3°F (−1.0), 2023 54.6°F (+4.3), 2024 53.4°F (+3.1), 2025 52.9°F (+2.6), 2026 54.2°F (+3.9). 5 of 6 ran warmer than normal.
| April | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 51.4°F | +1.1°F | 2.28 in |
| 2022 | 49.3°F | −1.0°F | 2.93 in |
| 2023 | 54.6°F | +4.3°F | 4.02 in |
| 2024 | 53.4°F | +3.1°F | 5.53 in |
| 2025 | 52.9°F | +2.6°F | 3.29 in |
| 2026 | 54.2°F | +3.9°F | 3.81 in |
Source: records: ACIS, NWS threaded record IPTthr; recent months: ACIS, station USW00014778. Records and recent months use complete months only.
How does April in Williamsport compare across Pennsylvania?
Across the 108 places PlainClimate covers in Pennsylvania, April normal highs run from 54°F in Laporte to 67°F in Schenley; Williamsport's is 62°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Williamsport in March48°F by day, 29°F at night
- Williamsport in May72°F by day, 49°F at night
- Williamsport through the yearEvery month, frost dates, records and recent years
- Pennsylvania in AprilThe statewide normal and the warmest and coolest places
- Schenley: Pennsylvania's warmest Aprilnormal high 67°F