April is one of the cooler months of the year in State College, with average highs near 13.7°C and lows around 1.5°C (mean 7.6°C). It is about average for rainfall, averaging 90 mm of rainfall and 80% relative humidity across the period.
April is one of the cooler months of the year in State College. Across 45 years of records, the warmest April in State College was 2017 — when the month averaged 11.2°C — while the coldest was 1982 at 4.7°C. Typical April days reach 13.7°C with nights near 1.5°C. The long-term trend is warming, about 0.4°C per decade.
April is about average for rainfall in State College, averaging 90 mm of rainfall. The wettest April on record was 2011 with 203 mm, while the driest was 1985 at 32 mm.
Relative humidity in State College during April averages 80%. The most humid April was 2011 at 87%, and the least humid was 2025 at 74%.
April receives about 4.7 kWh/m²/day of solar energy in State College. The sunniest April was 1997 at 5.4 kWh/m²/day, and the cloudiest was 2011 at 3.7.
Average wind speed in State College during April is 0.2 m/s. The windiest Aprils were 2023, 2024 and 2025, among others at 0.2 m/s, while the calmest were 2011, 2013 and 2014, among others at 0.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 6.9°C | 7.2°C | 8.0°C | 8.0°C | 8.3°C | +1.4°C |
| Avg High | 12.9°C | 13.3°C | 14.1°C | 14.2°C | 14.3°C | +1.4°C |
| Avg Low | 0.9°C | 1.1°C | 1.8°C | 1.8°C | 2.2°C | +1.3°C |
| Avg Rain | 80 mm | 101 mm | 84 mm | 88 mm | 99 mm | +19 mm |
April temperatures in State College have risen by about 1.8°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -11.6°C (1982) to a record high of 27.7°C (2009).
Rainfall in April is about average for rainfall, averaging 90 mm, with a wettest year of 203 mm.
A good time to visit State College
April is a good time to visit State College, with days averaging 13.7°C and nights around 1.5°C (mean 7.6°C, cooler than State College's yearly average) and higher rainfall. July and August are marginally more temperate, but April still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 15.6°C | 9.2°C | 2.7°C | 26.3°C | -5.3°C | 83 mm | 74% | 0.2 m/s | 4.6 |
| 2024 | 15.2°C | 9.4°C | 3.6°C | 25.6°C | -3.5°C | 154 mm | 82% | 0.2 m/s | 4.4 |
| 2023 | 16.4°C | 9.7°C | 3.0°C | 26.9°C | -5.5°C | 91 mm | 76% | 0.2 m/s | 4.8 |
| 2022 | 12.7°C | 6.8°C | 0.8°C | 26.8°C | -5.2°C | 65 mm | 79% | 0.2 m/s | 4.6 |
| 2021 | 14.6°C | 8.5°C | 2.5°C | 24.4°C | -5.9°C | 64 mm | 77% | 0.2 m/s | 4.7 |
| 2020 | 11.5°C | 6.0°C | 0.5°C | 20.4°C | -4.8°C | 133 mm | 79% | 0.2 m/s | 4.3 |
| 2019 | 14.5°C | 8.7°C | 2.9°C | 21.8°C | -6.0°C | 106 mm | 83% | 0.2 m/s | 4.5 |
| 2018 | 10.3°C | 4.8°C | -0.7°C | 24.2°C | -5.8°C | 95 mm | 80% | 0.2 m/s | 4.5 |
| 2017 🔥 | 17.5°C | 11.2°C | 4.9°C | 24.2°C | -3.2°C | 76 mm | 80% | 0.2 m/s | 4.7 |
| 2016 | 13.5°C | 7.0°C | 0.5°C | 24.0°C | -6.9°C | 49 mm | 75% | 0.2 m/s | 5 |
| 2015 | 14.2°C | 7.7°C | 1.1°C | 22.9°C | -4.8°C | 99 mm | 78% | 0.2 m/s | 4.8 |
| 2014 | 13.4°C | 6.9°C | 0.3°C | 22.8°C | -6.9°C | 89 mm | 79% | 0.1 m/s | 4.6 |
| 2013 | 14.0°C | 7.9°C | 1.8°C | 22.2°C | -8.7°C | 65 mm | 78% | 0.1 m/s | 4.9 |
| 2012 | 13.7°C | 7.3°C | 0.8°C | 25.6°C | -4.1°C | 46 mm | 77% | 0.2 m/s | 5.3 |
| 2011 🌧️ | 13.7°C | 8.3°C | 2.9°C | 23.6°C | -4.9°C | 203 mm | 87% | 0.1 m/s | 3.7 |
| 2010 | 17.0°C | 10.1°C | 3.1°C | 26.2°C | -2.1°C | 53 mm | 76% | 0.2 m/s | 5.3 |
| 2009 | 13.8°C | 7.8°C | 1.8°C | 27.7°C | -5.3°C | 76 mm | 80% | 0.2 m/s | 4.8 |
| 2008 | 15.5°C | 9.2°C | 2.9°C | 24.6°C | -4.5°C | 59 mm | 81% | 0.2 m/s | 4.7 |
| 2007 | 10.5°C | 5.6°C | 0.6°C | 21.8°C | -6.8°C | 102 mm | 82% | 0.2 m/s | 4.1 |
| 2006 | 15.7°C | 8.8°C | 1.9°C | 25.1°C | -5.0°C | 82 mm | 76% | 0.2 m/s | 5.3 |
| 2005 | 14.4°C | 7.8°C | 1.3°C | 23.0°C | -4.0°C | 56 mm | 80% | 0.2 m/s | 5.2 |
| 2004 | 13.2°C | 7.8°C | 2.3°C | 23.4°C | -6.1°C | 130 mm | 83% | 0.1 m/s | 4.4 |
| 2003 | 14.3°C | 7.9°C | 1.5°C | 23.5°C | -7.2°C | 56 mm | 80% | 0.1 m/s | 4.5 |
| 2002 | 14.7°C | 8.6°C | 2.6°C | 27.1°C | -5.7°C | 95 mm | 78% | 0.2 m/s | 4.7 |
| 2001 | 15.7°C | 8.7°C | 1.7°C | 26.1°C | -5.4°C | 66 mm | 76% | 0.2 m/s | 4.5 |
| 2000 | 13.6°C | 7.5°C | 1.4°C | 22.4°C | -4.6°C | 115 mm | 80% | 0.2 m/s | 4.2 |
| 1999 | 14.5°C | 7.7°C | 1.0°C | 23.0°C | -4.5°C | 105 mm | 77% | 0.1 m/s | 4.8 |
| 1998 | 14.1°C | 7.9°C | 1.6°C | 19.7°C | -4.6°C | 155 mm | 78% | 0.2 m/s | 4.9 |
| 1997 | 11.6°C | 5.6°C | -0.4°C | 21.2°C | -6.1°C | 41 mm | 77% | 0.2 m/s | 5.4 |
| 1996 | 12.5°C | 6.5°C | 0.4°C | 22.1°C | -5.3°C | 117 mm | 83% | 0.1 m/s | 4.5 |
| 1995 | 12.0°C | 5.7°C | -0.6°C | 20.3°C | -7.7°C | 76 mm | 77% | 0.2 m/s | 4.5 |
| 1994 | 15.2°C | 8.5°C | 1.8°C | 24.4°C | -5.4°C | 111 mm | 82% | 0.1 m/s | 5.3 |
| 1993 | 12.9°C | 6.8°C | 0.7°C | 21.3°C | -4.3°C | 153 mm | 83% | 0.1 m/s | 4.3 |
| 1992 | 12.5°C | 6.9°C | 1.3°C | 19.8°C | -6.4°C | 66 mm | 80% | 0.2 m/s | 4.2 |
| 1991 | 14.3°C | 8.7°C | 3.2°C | 23.3°C | -5.1°C | 92 mm | 84% | 0.2 m/s | 4.2 |
| 1990 | 13.7°C | 7.8°C | 1.9°C | 26.8°C | -5.5°C | 89 mm | 80% | 0.2 m/s | 4.5 |
| 1989 | 12.3°C | 5.8°C | -0.7°C | 21.2°C | -5.5°C | 35 mm | 78% | 0.2 m/s | 5 |
| 1988 | 12.3°C | 6.4°C | 0.4°C | 19.9°C | -4.7°C | 63 mm | 80% | 0.2 m/s | 4.9 |
| 1987 | 13.2°C | 7.8°C | 2.4°C | 24.9°C | -5.4°C | 107 mm | 83% | 0.2 m/s | 4.3 |
| 1986 | 13.4°C | 7.5°C | 1.6°C | 23.0°C | -4.2°C | 79 mm | 82% | 0.1 m/s | 4.5 |
| 1985 | 14.8°C | 9.2°C | 3.7°C | 26.1°C | -6.0°C | 32 mm | 81% | 0.2 m/s | 5.2 |
| 1984 | 12.1°C | 6.5°C | 1.0°C | 22.9°C | -5.1°C | 102 mm | 84% | 0.1 m/s | 4.2 |
| 1983 | 11.6°C | 6.2°C | 0.8°C | 22.3°C | -5.5°C | 132 mm | 83% | 0.1 m/s | — |
| 1982 ❄️ | 11.4°C | 4.7°C | -2.1°C | 21.4°C | -11.6°C | 46 mm | 77% | 0.2 m/s | — |
| 1981 | 15.0°C | 7.8°C | 0.7°C | 22.5°C | -6.2°C | 121 mm | 77% | 0.2 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 13.7°C with lows near 1.5°C (mean 7.6°C), based on 45 years of NASA POWER data.
April averages 90 mm of rainfall in State College, about average for rainfall. The wettest on record was 203 mm in 2011.
The hottest April reached 27.7°C in 2009. The coldest dipped to -11.6°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 1.8°C. Daytime highs moved from 13°C to 14.9°C and overnight lows from 0.8°C to 2.5°C over the same span.
April is one of the cooler months of the year in State College and about average for rainfall, so plan for around 13.7°C daytime highs and 1.5°C at night.
Not quite — April is the 6th coolest month in State College, averaging 7.6°C.
For April in State College, pack warm layers and a jacket for chilly mornings, with typical highs of 13.7°C and lows of 1.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 80% — quite humid.
Average wind speed in April is 0.2 m/s. The windiest April on record averaged 0.2 m/s (1981).
The wettest April on record was 2011 with 203 mm. On average, April sees 90 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in State College behaves each April, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for April specifically, along with year-by-year records and how the month has changed over the decades.
