Allentown weather in March: Allentown, Pennsylvania: normal highs, lows, rain and records for March
Allentown in March has a normal high of 51°F and a normal low of 31°F, a daily mean of 41°F, rising from 46°F on the 1st to 57°F by the 31st. Measurable precipitation falls on 11 days in a normal March, 3.63 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 10°C and low of −1°C, 92 mm of precipitation and 16 cm of snow in March.
- NOAA stationAllentown Lehigh Valley International Airport
- Station IDUSW00014737
- Location40.65°N 75.45°W
- Elevation390 ft (119 m)
- From the center4 miles
- Population127,138
- Jan 38° 22°
- Feb 42° 23°
- Mar 51° 31°
- Apr 63° 40°
- May 74° 51°
- Jun 82° 60°
- Jul 86° 65°
- Aug 84° 63°
- Sep 77° 55°
- Oct 66° 44°
- Nov 54° 34°
- Dec 43° 27°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Allentown in March?
The normal high is 51°F and the normal low 31°F, for a daily mean of 40.7°F. March is 8.3°F warmer than February and 11.1°F cooler than April. March is the 9th warmest month of the year in Allentown and the 9th wettest. Across the month the normal high rises 11°F, from 46°F on March 1 to 57°F on March 31. From one year to the next March's mean temperature typically moves about 4.0°F either way (NOAA's standard deviation), so roughly two Marchs in three average between 37°F and 45°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 38%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| March 1 | 46°F | 26°F | 35% | 22% |
| March 8 | 48°F | 28°F | 35% | 21% |
| March 15 | 50°F | 30°F | 35% | 22% |
| March 22 | 53°F | 32°F | 36% | 22% |
| March 31 | 57°F | 35°F | 38% | 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 | 46°F | 26°F | 35% | 22% | 11 h 10 min |
| March 2 | 46°F | 27°F | 35% | 22% | 11 h 20 min |
| March 3 | 46°F | 27°F | 35% | 22% | 11 h 20 min |
| March 4 | 47°F | 27°F | 35% | 22% | 11 h 20 min |
| March 5 | 47°F | 27°F | 35% | 21% | 11 h 30 min |
| March 6 | 47°F | 28°F | 35% | 21% | 11 h 30 min |
| March 7 | 47°F | 28°F | 35% | 21% | 11 h 30 min |
| March 8 | 48°F | 28°F | 35% | 21% | 11 h 30 min |
| March 9 | 48°F | 29°F | 35% | 21% | 11 h 40 min |
| March 10 | 49°F | 29°F | 35% | 21% | 11 h 40 min |
| March 11 | 49°F | 29°F | 35% | 21% | 11 h 40 min |
| March 12 | 49°F | 29°F | 35% | 21% | 11 h 40 min |
| March 13 | 50°F | 30°F | 35% | 21% | 11 h 50 min |
| March 14 | 50°F | 30°F | 35% | 22% | 11 h 50 min |
| March 15 | 50°F | 30°F | 35% | 22% | 11 h 50 min |
| March 16 | 51°F | 30°F | 35% | 22% | 11 h 50 min |
| March 17 | 51°F | 31°F | 35% | 22% | 12 h |
| March 18 | 51°F | 31°F | 35% | 22% | 12 h |
| March 19 | 52°F | 31°F | 35% | 22% | 12 h |
| March 20 | 52°F | 32°F | 36% | 22% | 12 h 10 min |
| March 21 | 53°F | 32°F | 36% | 22% | 12 h 10 min |
| March 22 | 53°F | 32°F | 36% | 22% | 12 h 10 min |
| March 23 | 53°F | 33°F | 36% | 22% | 12 h 10 min |
| March 24 | 54°F | 33°F | 36% | 22% | 12 h 20 min |
| March 25 | 54°F | 33°F | 37% | 22% | 12 h 20 min |
| March 26 | 55°F | 33°F | 37% | 22% | 12 h 20 min |
| March 27 | 55°F | 34°F | 37% | 22% | 12 h 20 min |
| March 28 | 55°F | 34°F | 37% | 22% | 12 h 30 min |
| March 29 | 56°F | 34°F | 37% | 22% | 12 h 30 min |
| March 30 | 56°F | 35°F | 38% | 23% | 12 h 30 min |
| March 31 | 57°F | 35°F | 38% | 23% | 12 h 40 min |
- Normal high
- 51°FMarch average
- Normal low
- 31°FMarch average
- Precipitation
- 3.63 inmonth total
- Days with precipitation
- 110.01 inch or more
- Snowfall
- 6.3 inmonth total
- Nights at 32°F or colder
- 19
- Daylight
- 11 h 10 min to 12 h 40 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 USW00014737; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Allentown in March?
On a given March day the chance of 0.01 inch or more is 36% on average, highest around March 31 (38%). In all, 3.63 in falls on 11 days of a normal March, 1 of them with an inch or more.
In a normal March in Allentown, 19 nights fall to freezing, 1 days stay below freezing all day and snowfall averages 6.3 inches.
Snow falls on 3 days in a normal March, and an inch or more covers the ground on 6 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014737.
How humid and windy is Allentown in March?
At 3 p.m. the normal temperature is 54°F with 41% relative humidity and a dew point of 31°F; at 6 a.m. it is 38°F with 72% humidity. The wind averages 8.6 mph, most often from the west-northwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 38°F | 30°F | 72% | 6.2 mph | 54% |
| 9 a.m. | 45°F | 31°F | 59% | 9.3 mph | 50% |
| noon | 51°F | 31°F | 46% | 10.8 mph | 48% |
| 3 p.m. | 54°F | 31°F | 41% | 11.9 mph | 48% |
| 6 p.m. | 52°F | 31°F | 45% | 10.5 mph | 51% |
| 9 p.m. | 46°F | 31°F | 56% | 7.7 mph | 56% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014737. 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 March in Allentown?
The warmest March temperature on Allentown's official record (since 1922) is 87°F, on March 30, 1998; the coldest is −5°F, on March 1, 1934. The wettest March brought 7.24 in (1913); the snowiest, 30.5 inches (1958).
The March mean against the 1991-2020 normal of 40.7°F: 2021 42.5°F (+1.8), 2022 41.6°F (+0.9), 2023 40.3°F (−0.4), 2024 44.5°F (+3.8), 2025 44.8°F (+4.1), 2026 44.2°F (+3.5). 5 of 6 ran warmer than normal.
| March | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 42.5°F | +1.8°F | 2.93 in |
| 2022 | 41.6°F | +0.9°F | 4.28 in |
| 2023 | 40.3°F | −0.4°F | 2.78 in |
| 2024 | 44.5°F | +3.8°F | 5.14 in |
| 2025 | 44.8°F | +4.1°F | 3.68 in |
| 2026 | 44.2°F | +3.5°F | 5.73 in |
Source: records: ACIS, NWS threaded record ABEthr; recent months: ACIS, station USW00014737. Records and recent months use complete months only.
How does March in Allentown 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; Allentown's is 51°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Allentown in February42°F by day, 23°F at night
- Allentown in April63°F by day, 40°F at night
- Allentown 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