New Castle weather in January: New Castle, Pennsylvania: normal highs, lows, rain and records for January
New Castle in January has a normal high of 37°F and a normal low of 19°F, a daily mean of 28°F, holding near 37°F all month. Measurable precipitation falls on 16 days in a normal January, 2.86 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 3°C and low of −7°C, 73 mm of precipitation and 26 cm of snow in January.
- 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 January?
The normal high is 37°F and the normal low 19°F, for a daily mean of 27.9°F. January is 5.4°F cooler than December and 1.7°F cooler than February. January is the 12th warmest month of the year in New Castle and the 11th wettest, and the snowiest. Across the month the normal high falls 1°F, from 38°F on January 1 to 37°F on January 31. From one year to the next January's mean temperature typically moves about 4.7°F either way (NOAA's standard deviation), so roughly two Januarys in three average between 23°F and 33°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 50%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| January 1 | 38°F | 22°F | 49% | 24% |
| January 8 | 37°F | 20°F | 50% | 23% |
| January 15 | 37°F | 19°F | 50% | 22% |
| January 22 | 37°F | 18°F | 48% | 21% |
| January 31 | 37°F | 18°F | 46% | 20% |
Every day of January: normal high, low and chance of precipitation (warmest afternoon January 1, coldest night January 29)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| January 1 | 38°F | 22°F | 49% | 24% | 9 h 20 min |
| January 2 | 38°F | 21°F | 49% | 24% | 9 h 20 min |
| January 3 | 38°F | 21°F | 50% | 24% | 9 h 20 min |
| January 4 | 38°F | 21°F | 50% | 24% | 9 h 20 min |
| January 5 | 38°F | 21°F | 50% | 24% | 9 h 20 min |
| January 6 | 37°F | 21°F | 50% | 23% | 9 h 20 min |
| January 7 | 37°F | 20°F | 50% | 23% | 9 h 20 min |
| January 8 | 37°F | 20°F | 50% | 23% | 9 h 20 min |
| January 9 | 37°F | 20°F | 50% | 23% | 9 h 20 min |
| January 10 | 37°F | 20°F | 50% | 23% | 9 h 20 min |
| January 11 | 37°F | 20°F | 50% | 23% | 9 h 30 min |
| January 12 | 37°F | 19°F | 50% | 23% | 9 h 30 min |
| January 13 | 37°F | 19°F | 50% | 22% | 9 h 30 min |
| January 14 | 37°F | 19°F | 50% | 22% | 9 h 30 min |
| January 15 | 37°F | 19°F | 50% | 22% | 9 h 30 min |
| January 16 | 37°F | 19°F | 50% | 22% | 9 h 30 min |
| January 17 | 37°F | 19°F | 49% | 22% | 9 h 30 min |
| January 18 | 37°F | 18°F | 49% | 22% | 9 h 40 min |
| January 19 | 37°F | 18°F | 49% | 21% | 9 h 40 min |
| January 20 | 36°F | 18°F | 49% | 21% | 9 h 40 min |
| January 21 | 36°F | 18°F | 49% | 21% | 9 h 40 min |
| January 22 | 37°F | 18°F | 48% | 21% | 9 h 40 min |
| January 23 | 37°F | 18°F | 48% | 21% | 9 h 50 min |
| January 24 | 37°F | 18°F | 48% | 21% | 9 h 50 min |
| January 25 | 37°F | 18°F | 48% | 21% | 9 h 50 min |
| January 26 | 37°F | 18°F | 48% | 21% | 9 h 50 min |
| January 27 | 37°F | 18°F | 47% | 21% | 9 h 50 min |
| January 28 | 37°F | 18°F | 47% | 21% | 10 h |
| January 29 | 37°F | 18°F | 47% | 21% | 10 h |
| January 30 | 37°F | 18°F | 47% | 20% | 10 h |
| January 31 | 37°F | 18°F | 46% | 20% | 10 h |
- Normal high
- 37°FJanuary average
- Normal low
- 19°FJanuary average
- Precipitation
- 2.86 inmonth total
- Days with precipitation
- 160.01 inch or more
- Snowfall
- 10.1 inmonth total
- Nights at 32°F or colder
- 27
- Daylight
- 9 h 20 min to 10 hJanuary 1 to January 31
- Sunshine
- 51%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 or snow in New Castle in January?
On a given January day the chance of 0.01 inch or more is 49% on average, highest around January 8 (50%). In all, 2.86 in falls on 16 days of a normal January, 1 of them with an inch or more.
In a normal January in New Castle, 27 nights fall to freezing, 12 days stay below freezing all day and snowfall averages 10.1 inches.
Snow falls on 8 days in a normal January, and an inch or more covers the ground on 16 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00366233.
What are the records for January in New Castle?
The warmest January temperature on this station's record (since 1894) is 75°F, on January 25, 1950; the coldest is −27°F, on January 19, 1994. The wettest January brought 7.50 in (1910); the snowiest, 30.6 inches (1978).
Source: records: ACIS, station USC00366233. Records and recent months use complete months only.
How does January in New Castle compare across Pennsylvania?
Across the 108 places PlainClimate covers in Pennsylvania, January normal highs run from 29°F in Laporte to 43°F in Marcus Hook; New Castle's is 37°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- New Castle in December42°F by day, 25°F at night
- New Castle in February40°F by day, 20°F at night
- New Castle through the yearEvery month, frost dates, records and recent years
- Pennsylvania in JanuaryThe statewide normal and the warmest and coolest places
- Marcus Hook: Pennsylvania's warmest Januarynormal high 43°F