Norristown weather in April: Norristown, Pennsylvania: normal highs, lows, rain and records for April
Norristown in April has a normal high of 65°F and a normal low of 42°F, a daily mean of 53°F, rising from 59°F on the 1st to 70°F by the 30th. Measurable precipitation falls on 13 days in a normal April, 3.90 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 18°C and low of 5°C, 99 mm of precipitation and 1 cm of snow in April.
- NOAA stationNorristown
- Station IDUSC00366370
- Location40.11°N 75.34°W
- Elevation62 ft (19 m)
- From the centerunder 1 mile
- Population36,075
- Jan 42° 23°
- Feb 44° 25°
- Mar 52° 32°
- Apr 65° 42°
- May 75° 52°
- Jun 84° 62°
- Jul 89° 67°
- Aug 87° 65°
- Sep 80° 58°
- Oct 68° 45°
- Nov 57° 35°
- Dec 46° 28°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Norristown in April?
The normal high is 65°F and the normal low 42°F, for a daily mean of 53.1°F. April is 11.3°F warmer than March and 10.3°F cooler than May. April is the 7th warmest month of the year in Norristown and the 9th wettest. Across the month the normal high rises 11°F, from 59°F on April 1 to 70°F on April 30. From one year to the next April's mean temperature typically moves about 2.4°F either way (NOAA's standard deviation), so roughly two Aprils in three average between 51°F and 56°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 | 59°F | 36°F | 41% | 25% |
| April 8 | 62°F | 39°F | 42% | 25% |
| April 15 | 65°F | 41°F | 42% | 25% |
| April 22 | 68°F | 44°F | 42% | 25% |
| April 30 | 70°F | 47°F | 43% | 26% |
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 | 59°F | 36°F | 41% | 25% | 12 h 40 min |
| April 2 | 59°F | 37°F | 41% | 25% | 12 h 40 min |
| April 3 | 60°F | 37°F | 41% | 25% | 12 h 40 min |
| April 4 | 60°F | 37°F | 41% | 25% | 12 h 50 min |
| April 5 | 60°F | 38°F | 41% | 25% | 12 h 50 min |
| April 6 | 61°F | 38°F | 41% | 25% | 12 h 50 min |
| April 7 | 61°F | 38°F | 42% | 25% | 12 h 50 min |
| April 8 | 62°F | 39°F | 42% | 25% | 13 h |
| April 9 | 62°F | 39°F | 42% | 25% | 13 h |
| April 10 | 63°F | 39°F | 42% | 25% | 13 h |
| April 11 | 63°F | 40°F | 42% | 25% | 13 h |
| April 12 | 64°F | 40°F | 42% | 25% | 13 h 10 min |
| April 13 | 64°F | 41°F | 42% | 25% | 13 h 10 min |
| April 14 | 64°F | 41°F | 42% | 25% | 13 h 10 min |
| April 15 | 65°F | 41°F | 42% | 25% | 13 h 10 min |
| April 16 | 65°F | 42°F | 42% | 25% | 13 h 20 min |
| April 17 | 66°F | 42°F | 42% | 25% | 13 h 20 min |
| April 18 | 66°F | 43°F | 42% | 25% | 13 h 20 min |
| April 19 | 66°F | 43°F | 42% | 25% | 13 h 20 min |
| April 20 | 67°F | 43°F | 42% | 25% | 13 h 30 min |
| April 21 | 67°F | 44°F | 42% | 25% | 13 h 30 min |
| April 22 | 68°F | 44°F | 42% | 25% | 13 h 30 min |
| April 23 | 68°F | 44°F | 42% | 25% | 13 h 30 min |
| April 24 | 68°F | 45°F | 42% | 25% | 13 h 40 min |
| April 25 | 69°F | 45°F | 42% | 25% | 13 h 40 min |
| April 26 | 69°F | 45°F | 43% | 26% | 13 h 40 min |
| April 27 | 69°F | 46°F | 43% | 26% | 13 h 40 min |
| April 28 | 70°F | 46°F | 43% | 26% | 13 h 50 min |
| April 29 | 70°F | 47°F | 43% | 26% | 13 h 50 min |
| April 30 | 70°F | 47°F | 43% | 26% | 13 h 50 min |
- Normal high
- 65°FApril average
- Normal low
- 42°FApril average
- Precipitation
- 3.90 inmonth total
- Days with precipitation
- 130.01 inch or more
- Snowfall
- 0.2 inmonth total
- Days at 90°F or more
- 1
- Nights at 32°F or colder
- 3
- Daylight
- 12 h 40 min to 13 h 50 minApril 1 to April 30
- Days at 70°F or more
- 10
- Days at 80°F or more
- 3
- Sunshine
- 70%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00366370; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Norristown in April?
On a given April day the chance of 0.01 inch or more is 42% on average, highest around April 30 (43%). In all, 3.90 in falls on 13 days of a normal April, 1 of them with an inch or more.
In a normal April in Norristown, 1 days reach 90°F, 3 nights fall to freezing and snowfall averages 0.2 inches.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00366370.
What are the records for April in Norristown?
The warmest April temperature on this station's record (since 1951) is 98°F, on April 19, 1976; the coldest is 15°F, on April 7, 1982. The wettest April brought 10.93 in (2007); the snowiest, 5.0 inches (1983).
The April mean against the 1991-2020 normal of 53.1°F: 2021 54.0°F (+0.9), 2022 50.5°F (−2.6), 2023 56.1°F (+3.0), 2025 52.8°F (−0.3), 2026 55.4°F (+2.3). 3 of 5 ran warmer than normal.
| April | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 54.0°F | +0.9°F | 2.10 in |
| 2022 | 50.5°F | −2.6°F | 8.10 in |
| 2023 | 56.1°F | +3.0°F | 3.87 in |
| 2025 | 52.8°F | −0.3°F | 4.24 in |
| 2026 | 55.4°F | +2.3°F | 2.17 in |
Source: records: ACIS, station USC00366370; recent months: ACIS, station USC00366370. Records and recent months use complete months only.
How does April in Norristown 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; Norristown's is 65°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.