Washington weather in January: Washington, Pennsylvania: normal highs, lows, rain and records for January
Washington in January has a normal high of 37°F and a normal low of 20°F, a daily mean of 28°F, holding near 37°F all month. Measurable precipitation falls on 16 days in a normal January, 3.32 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 3°C and low of −7°C, 84 mm of precipitation and 25 cm of snow in January.
- NOAA stationWashington (3 mi NE)
- Station IDUSC00369318
- Location40.18°N 80.19°W
- Elevation1,300 ft (396 m)
- From the center3 miles
- Population13,334
- Jan 37° 20°
- Feb 40° 22°
- Mar 49° 29°
- Apr 63° 40°
- May 72° 49°
- Jun 80° 58°
- Jul 83° 62°
- Aug 83° 60°
- Sep 76° 54°
- Oct 64° 43°
- Nov 52° 33°
- Dec 41° 26°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Washington in January?
The normal high is 37°F and the normal low 20°F, for a daily mean of 28.4°F. January is 5.3°F cooler than December and 2.5°F cooler than February. January is the 12th warmest month of the year in Washington and the 7th 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 24°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 51%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| January 1 | 38°F | 22°F | 50% | 23% |
| January 8 | 37°F | 21°F | 50% | 24% |
| January 15 | 36°F | 20°F | 51% | 24% |
| January 22 | 36°F | 19°F | 50% | 24% |
| January 31 | 37°F | 19°F | 48% | 24% |
Every day of January: normal high, low and chance of precipitation (warmest afternoon January 1, coldest night January 23)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| January 1 | 38°F | 22°F | 50% | 23% | 9 h 20 min |
| January 2 | 38°F | 22°F | 50% | 23% | 9 h 20 min |
| January 3 | 38°F | 22°F | 50% | 23% | 9 h 20 min |
| January 4 | 37°F | 22°F | 50% | 24% | 9 h 20 min |
| January 5 | 37°F | 21°F | 50% | 24% | 9 h 20 min |
| January 6 | 37°F | 21°F | 50% | 24% | 9 h 30 min |
| January 7 | 37°F | 21°F | 50% | 24% | 9 h 30 min |
| January 8 | 37°F | 21°F | 50% | 24% | 9 h 30 min |
| January 9 | 37°F | 21°F | 51% | 24% | 9 h 30 min |
| January 10 | 37°F | 20°F | 51% | 24% | 9 h 30 min |
| January 11 | 37°F | 20°F | 51% | 24% | 9 h 30 min |
| January 12 | 37°F | 20°F | 51% | 24% | 9 h 30 min |
| January 13 | 37°F | 20°F | 51% | 24% | 9 h 30 min |
| January 14 | 37°F | 20°F | 51% | 24% | 9 h 30 min |
| January 15 | 36°F | 20°F | 51% | 24% | 9 h 40 min |
| January 16 | 36°F | 20°F | 50% | 24% | 9 h 40 min |
| January 17 | 36°F | 19°F | 50% | 24% | 9 h 40 min |
| January 18 | 36°F | 19°F | 50% | 24% | 9 h 40 min |
| January 19 | 36°F | 19°F | 50% | 24% | 9 h 40 min |
| January 20 | 36°F | 19°F | 50% | 24% | 9 h 40 min |
| January 21 | 36°F | 19°F | 50% | 24% | 9 h 50 min |
| January 22 | 36°F | 19°F | 50% | 24% | 9 h 50 min |
| January 23 | 36°F | 19°F | 50% | 24% | 9 h 50 min |
| January 24 | 37°F | 19°F | 50% | 24% | 9 h 50 min |
| January 25 | 37°F | 19°F | 50% | 24% | 9 h 50 min |
| January 26 | 37°F | 19°F | 50% | 24% | 9 h 50 min |
| January 27 | 37°F | 19°F | 49% | 24% | 10 h |
| January 28 | 37°F | 19°F | 49% | 24% | 10 h |
| January 29 | 37°F | 19°F | 49% | 24% | 10 h |
| January 30 | 37°F | 19°F | 49% | 24% | 10 h |
| January 31 | 37°F | 19°F | 48% | 24% | 10 h 10 min |
- Normal high
- 37°FJanuary average
- Normal low
- 20°FJanuary average
- Precipitation
- 3.32 inmonth total
- Days with precipitation
- 160.01 inch or more
- Snowfall
- 9.9 inmonth total
- Nights at 32°F or colder
- 27
- Daylight
- 9 h 20 min to 10 h 10 minJanuary 1 to January 31
- Sunshine
- 53%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00369318; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Washington in January?
On a given January day the chance of 0.01 inch or more is 50% on average, highest around January 12 (51%). In all, 3.32 in falls on 16 days of a normal January, 1 of them with an inch or more.
In a normal January in Washington, 27 nights fall to freezing, 14 days stay below freezing all day and snowfall averages 9.9 inches.
Snow falls on 8 days in a normal January, and an inch or more covers the ground on 14 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00369318.
How does January in Washington 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; Washington's is 37°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Washington in December41°F by day, 26°F at night
- Washington in February40°F by day, 22°F at night
- Washington 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