New Castle weather in August: New Castle, Pennsylvania: normal highs, lows, rain and records for August
New Castle in August has a normal high of 85°F and a normal low of 59°F, a daily mean of 72°F, falling from 86°F on the 1st to 83°F by the 31st. Measurable precipitation falls on 11 days in a normal August, 3.91 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 29°C and low of 15°C, 99 mm of precipitation in August.
- NOAA stationNew Castle (1 mi N)
- Station IDUSC00366233
- Location41.02°N 80.36°W
- Elevation825 ft (252 m)
- Population21,332
- Jan 37° 19°
- Feb 40° 20°
- Mar 49° 27°
- Apr 63° 36°
- May 73° 47°
- Jun 82° 56°
- Jul 86° 60°
- Aug 85° 59°
- Sep 79° 52°
- Oct 66° 41°
- Nov 53° 32°
- Dec 42° 25°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is New Castle in August?
The normal high is 85°F and the normal low 59°F, for a daily mean of 71.9°F. August is 1.2°F cooler than July and 6.5°F warmer than September. August is the 2nd warmest month of the year in New Castle and the 3rd wettest. Across the month the normal high falls 3°F, from 86°F on August 1 to 83°F on August 31. From one year to the next August's mean temperature typically moves about 2.4°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 70°F and 74°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 |
|---|---|---|---|---|
| August 1 | 86°F | 60°F | 38% | 24% |
| August 8 | 85°F | 60°F | 38% | 24% |
| August 15 | 85°F | 59°F | 37% | 23% |
| August 22 | 85°F | 58°F | 35% | 22% |
| August 31 | 83°F | 57°F | 34% | 21% |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 1, coldest night August 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 86°F | 60°F | 38% | 24% | 14 h 20 min |
| August 2 | 86°F | 60°F | 38% | 24% | 14 h 20 min |
| August 3 | 86°F | 60°F | 38% | 24% | 14 h 20 min |
| August 4 | 86°F | 60°F | 38% | 24% | 14 h 20 min |
| August 5 | 86°F | 60°F | 38% | 24% | 14 h 10 min |
| August 6 | 86°F | 60°F | 38% | 24% | 14 h 10 min |
| August 7 | 85°F | 60°F | 38% | 24% | 14 h 10 min |
| August 8 | 85°F | 60°F | 38% | 24% | 14 h 10 min |
| August 9 | 85°F | 60°F | 38% | 24% | 14 h 10 min |
| August 10 | 85°F | 60°F | 37% | 24% | 14 h |
| August 11 | 85°F | 60°F | 37% | 23% | 14 h |
| August 12 | 85°F | 60°F | 37% | 23% | 14 h |
| August 13 | 85°F | 59°F | 37% | 23% | 14 h |
| August 14 | 85°F | 59°F | 37% | 23% | 13 h 50 min |
| August 15 | 85°F | 59°F | 37% | 23% | 13 h 50 min |
| August 16 | 85°F | 59°F | 37% | 23% | 13 h 50 min |
| August 17 | 85°F | 59°F | 36% | 23% | 13 h 50 min |
| August 18 | 85°F | 59°F | 36% | 22% | 13 h 40 min |
| August 19 | 85°F | 59°F | 36% | 22% | 13 h 40 min |
| August 20 | 85°F | 59°F | 36% | 22% | 13 h 40 min |
| August 21 | 85°F | 59°F | 36% | 22% | 13 h 40 min |
| August 22 | 85°F | 58°F | 35% | 22% | 13 h 30 min |
| August 23 | 84°F | 58°F | 35% | 22% | 13 h 30 min |
| August 24 | 84°F | 58°F | 35% | 22% | 13 h 30 min |
| August 25 | 84°F | 58°F | 35% | 21% | 13 h 30 min |
| August 26 | 84°F | 58°F | 35% | 21% | 13 h 20 min |
| August 27 | 84°F | 58°F | 34% | 21% | 13 h 20 min |
| August 28 | 84°F | 57°F | 34% | 21% | 13 h 20 min |
| August 29 | 84°F | 57°F | 34% | 21% | 13 h 20 min |
| August 30 | 83°F | 57°F | 34% | 21% | 13 h 10 min |
| August 31 | 83°F | 57°F | 34% | 21% | 13 h 10 min |
- Normal high
- 85°FAugust average
- Normal low
- 59°FAugust average
- Precipitation
- 3.91 inmonth total
- Days with precipitation
- 110.01 inch or more
- Days at 90°F or more
- 7
- Daylight
- 14 h 20 min to 13 h 10 minAugust 1 to August 31
- Days at 70°F or more
- 30
- Days at 80°F or more
- 25
- Sunshine
- 77%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00366233; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in New Castle in August?
On a given August day the chance of 0.01 inch or more is 36% on average, highest around August 1 (38%). In all, 3.91 in falls on 11 days of a normal August, 1 of them with an inch or more.
In a normal August in New Castle, 7 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00366233.
What are the records for August in New Castle?
The warmest August temperature on this station's record (since 1894) is 104°F, on August 6, 1918; the coldest is 32°F, on August 29, 1982. The wettest August brought 7.37 in (2007).
Source: records: ACIS, station USC00366233. Records and recent months use complete months only.
How does August in New Castle compare across Pennsylvania?
Across the 108 places PlainClimate covers in Pennsylvania, August normal highs run from 75°F in Laporte to 87°F in Marcus Hook; New Castle's is 85°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- New Castle in July86°F by day, 60°F at night
- New Castle in September79°F by day, 52°F at night
- New Castle through the yearEvery month, frost dates, records and recent years
- Pennsylvania in AugustThe statewide normal and the warmest and coolest places
- Marcus Hook: Pennsylvania's warmest Augustnormal high 87°F