Pottstown weather in March: Pottstown, Pennsylvania: normal highs, lows, rain and records for March
Pottstown in March has a normal high of 49°F and a normal low of 30°F, a daily mean of 40°F, rising from 44°F on the 1st to 55°F by the 31st. Measurable precipitation falls on 11 days in a normal March, 4.07 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 10°C and low of −1°C, 103 mm of precipitation in March.
- NOAA stationPottstown Limerick Airport
- Station IDUSW00054782
- Location40.24°N 75.56°W
- Elevation291 ft (89 m)
- From the center5 miles
- Population23,553
- Jan 37° 22°
- Feb 40° 23°
- Mar 49° 30°
- Apr 61° 40°
- May 71° 50°
- Jun 79° 59°
- Jul 84° 64°
- Aug 82° 62°
- Sep 75° 55°
- Oct 63° 43°
- Nov 52° 34°
- Dec 42° 27°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Pottstown in March?
The normal high is 49°F and the normal low 30°F, for a daily mean of 39.8°F. March is 7.9°F warmer than February and 10.9°F cooler than April. March is the 9th warmest month of the year in Pottstown and the 4th wettest. Across the month the normal high rises 11°F, from 44°F on March 1 to 55°F on March 31. From one year to the next March's mean temperature typically moves about 3.7°F either way (NOAA's standard deviation), so roughly two Marchs in three average between 36°F and 44°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 41%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| March 1 | 44°F | 26°F | 35% | 21% |
| March 8 | 46°F | 28°F | 35% | 21% |
| March 15 | 49°F | 30°F | 36% | 21% |
| March 22 | 51°F | 32°F | 38% | 22% |
| March 31 | 55°F | 35°F | 41% | 23% |
Every day of March: normal high, low and chance of precipitation (warmest afternoon March 31, coldest night March 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| March 1 | 44°F | 26°F | 35% | 21% | 11 h 20 min |
| March 2 | 44°F | 27°F | 35% | 21% | 11 h 20 min |
| March 3 | 45°F | 27°F | 35% | 21% | 11 h 20 min |
| March 4 | 45°F | 27°F | 35% | 21% | 11 h 20 min |
| March 5 | 45°F | 27°F | 35% | 21% | 11 h 30 min |
| March 6 | 46°F | 28°F | 35% | 21% | 11 h 30 min |
| March 7 | 46°F | 28°F | 35% | 21% | 11 h 30 min |
| March 8 | 46°F | 28°F | 35% | 21% | 11 h 30 min |
| March 9 | 47°F | 28°F | 35% | 21% | 11 h 40 min |
| March 10 | 47°F | 29°F | 35% | 21% | 11 h 40 min |
| March 11 | 47°F | 29°F | 35% | 21% | 11 h 40 min |
| March 12 | 48°F | 29°F | 36% | 21% | 11 h 40 min |
| March 13 | 48°F | 30°F | 36% | 21% | 11 h 50 min |
| March 14 | 48°F | 30°F | 36% | 21% | 11 h 50 min |
| March 15 | 49°F | 30°F | 36% | 21% | 11 h 50 min |
| March 16 | 49°F | 30°F | 36% | 21% | 11 h 50 min |
| March 17 | 49°F | 31°F | 37% | 21% | 12 h |
| March 18 | 50°F | 31°F | 37% | 22% | 12 h |
| March 19 | 50°F | 31°F | 37% | 22% | 12 h |
| March 20 | 50°F | 32°F | 37% | 22% | 12 h 10 min |
| March 21 | 51°F | 32°F | 38% | 22% | 12 h 10 min |
| March 22 | 51°F | 32°F | 38% | 22% | 12 h 10 min |
| March 23 | 52°F | 32°F | 38% | 22% | 12 h 10 min |
| March 24 | 52°F | 33°F | 38% | 22% | 12 h 20 min |
| March 25 | 52°F | 33°F | 39% | 22% | 12 h 20 min |
| March 26 | 53°F | 33°F | 39% | 22% | 12 h 20 min |
| March 27 | 53°F | 34°F | 39% | 22% | 12 h 20 min |
| March 28 | 54°F | 34°F | 40% | 22% | 12 h 30 min |
| March 29 | 54°F | 34°F | 40% | 22% | 12 h 30 min |
| March 30 | 54°F | 35°F | 40% | 22% | 12 h 30 min |
| March 31 | 55°F | 35°F | 41% | 23% | 12 h 30 min |
- Normal high
- 49°FMarch average
- Normal low
- 30°FMarch average
- Precipitation
- 4.07 inmonth total
- Days with precipitation
- 110.01 inch or more
- Nights at 32°F or colder
- 18
- Daylight
- 11 h 20 min to 12 h 30 minMarch 1 to March 31
- Days at 70°F or more
- 2
- Sunshine
- 67%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00054782; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Pottstown in March?
On a given March day the chance of 0.01 inch or more is 37% on average, highest around March 31 (41%). In all, 4.07 in falls on 11 days of a normal March, 1 of them with an inch or more.
In a normal March in Pottstown, 18 nights fall to freezing and 1 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00054782.
What are the records for March in Pottstown?
The warmest March temperature on this station's record (since 1999) is 84°F, on March 29, 2025; the coldest is 0°F, on March 6, 2015. The wettest March brought 6.67 in (2000).
The March mean against the 1991-2020 normal of 39.8°F: 2021 43.0°F (+3.2), 2022 42.0°F (+2.2), 2023 40.6°F (+0.8), 2024 46.2°F (+6.4), 2025 46.7°F (+6.9), 2026 45.5°F (+5.7). 6 of 6 ran warmer than normal.
| March | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 43.0°F | +3.2°F | 3.49 in |
| 2022 | 42.0°F | +2.2°F | 2.73 in |
| 2023 | 40.6°F | +0.8°F | 2.35 in |
| 2024 | 46.2°F | +6.4°F | 5.43 in |
| 2025 | 46.7°F | +6.9°F | 3.26 in |
| 2026 | 45.5°F | +5.7°F | 3.21 in |
Source: records: ACIS, station USW00054782; recent months: ACIS, station USW00054782. Records and recent months use complete months only.
How does March in Pottstown compare across Pennsylvania?
Across the 108 places PlainClimate covers in Pennsylvania, March normal highs run from 40°F in Laporte to 53°F in Marcus Hook; Pottstown's is 49°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Pottstown in February40°F by day, 23°F at night
- Pottstown in April61°F by day, 40°F at night
- Pottstown through the yearEvery month, frost dates, records and recent years
- Pennsylvania in MarchThe statewide normal and the warmest and coolest places
- Marcus Hook: Pennsylvania's warmest Marchnormal high 53°F