Sterling weather in January: Sterling, Virginia: normal highs, lows, rain and records for January
Sterling in January has a normal high of 43°F and a normal low of 25°F, a daily mean of 34°F, holding near 43°F all month. Measurable precipitation falls on 10 days in a normal January, 2.94 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 6°C and low of −4°C, 75 mm of precipitation and 18 cm of snow in January.
- NOAA stationWashington Dulles International Airport
- Station IDUSW00093738
- Location38.94°N 77.46°W
- Elevation290 ft (88 m)
- From the center5 miles
- Population (census place)31,251
- Jan 43° 25°
- Feb 46° 27°
- Mar 55° 34°
- Apr 67° 43°
- May 75° 53°
- Jun 83° 62°
- Jul 88° 67°
- Aug 86° 65°
- Sep 79° 58°
- Oct 68° 45°
- Nov 57° 36°
- Dec 47° 29°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Sterling in January?
The normal high is 43°F and the normal low 25°F, for a daily mean of 33.9°F. January is 3.8°F cooler than December and 2.5°F cooler than February. January is the 12th warmest month of the year in Sterling and the 11th wettest. From one year to the next January's mean temperature typically moves about 4.2°F either way (NOAA's standard deviation), so roughly two Januarys in three average between 30°F and 38°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 33%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| January 1 | 43°F | 27°F | 33% | 19% |
| January 8 | 43°F | 26°F | 33% | 19% |
| January 15 | 42°F | 25°F | 33% | 19% |
| January 22 | 42°F | 25°F | 33% | 19% |
| January 31 | 43°F | 25°F | 32% | 19% |
Every day of January: normal high, low and chance of precipitation (warmest afternoon January 31, coldest night January 21)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| January 1 | 43°F | 27°F | 33% | 19% | 9 h 30 min |
| January 2 | 43°F | 26°F | 33% | 19% | 9 h 30 min |
| January 3 | 43°F | 26°F | 33% | 19% | 9 h 30 min |
| January 4 | 43°F | 26°F | 33% | 19% | 9 h 30 min |
| January 5 | 43°F | 26°F | 33% | 19% | 9 h 30 min |
| January 6 | 43°F | 26°F | 33% | 19% | 9 h 30 min |
| January 7 | 43°F | 26°F | 33% | 19% | 9 h 30 min |
| January 8 | 43°F | 26°F | 33% | 19% | 9 h 30 min |
| January 9 | 42°F | 26°F | 33% | 19% | 9 h 40 min |
| January 10 | 42°F | 25°F | 33% | 19% | 9 h 40 min |
| January 11 | 42°F | 25°F | 33% | 19% | 9 h 40 min |
| January 12 | 42°F | 25°F | 33% | 19% | 9 h 40 min |
| January 13 | 42°F | 25°F | 33% | 19% | 9 h 40 min |
| January 14 | 42°F | 25°F | 33% | 19% | 9 h 40 min |
| January 15 | 42°F | 25°F | 33% | 19% | 9 h 40 min |
| January 16 | 42°F | 25°F | 33% | 19% | 9 h 40 min |
| January 17 | 42°F | 25°F | 33% | 19% | 9 h 50 min |
| January 18 | 42°F | 25°F | 33% | 19% | 9 h 50 min |
| January 19 | 42°F | 25°F | 33% | 19% | 9 h 50 min |
| January 20 | 42°F | 25°F | 33% | 19% | 9 h 50 min |
| January 21 | 42°F | 25°F | 33% | 19% | 9 h 50 min |
| January 22 | 42°F | 25°F | 33% | 19% | 9 h 50 min |
| January 23 | 43°F | 25°F | 33% | 19% | 10 h |
| January 24 | 43°F | 25°F | 32% | 19% | 10 h |
| January 25 | 43°F | 25°F | 32% | 19% | 10 h |
| January 26 | 43°F | 25°F | 32% | 19% | 10 h |
| January 27 | 43°F | 25°F | 32% | 19% | 10 h |
| January 28 | 43°F | 25°F | 32% | 19% | 10 h |
| January 29 | 43°F | 25°F | 32% | 19% | 10 h 10 min |
| January 30 | 43°F | 25°F | 32% | 19% | 10 h 10 min |
| January 31 | 43°F | 25°F | 32% | 19% | 10 h 10 min |
- Normal high
- 43°FJanuary average
- Normal low
- 25°FJanuary average
- Precipitation
- 2.94 inmonth total
- Days with precipitation
- 100.01 inch or more
- Snowfall
- 6.9 inmonth total
- Nights at 32°F or colder
- 24
- Daylight
- 9 h 30 min to 10 h 10 minJanuary 1 to January 31
- Days at 70°F or more
- 1
- Sunshine
- 70%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00093738; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Sterling in January?
On a given January day the chance of 0.01 inch or more is 33% on average, highest around January 11 (33%). In all, 2.94 in falls on 10 days of a normal January, 1 of them with an inch or more.
In a normal January in Sterling, 24 nights fall to freezing, 6 days stay below freezing all day and snowfall averages 6.9 inches.
Snow falls on 3 days in a normal January, and an inch or more covers the ground on 4 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00093738.
How humid and windy is Sterling in January?
At 3 p.m. the normal temperature is 42°F with 46% relative humidity and a dew point of 22°F; at 6 a.m. it is 29°F with 72% humidity. The wind averages 7.6 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. | 29°F | 21°F | 72% | 6.3 mph | 39% |
| 9 a.m. | 32°F | 22°F | 67% | 7.3 mph | 29% |
| noon | 39°F | 22°F | 52% | 10.1 mph | 29% |
| 3 p.m. | 42°F | 22°F | 46% | 10.1 mph | 25% |
| 6 p.m. | 38°F | 22°F | 53% | 7.8 mph | 35% |
| 9 p.m. | 34°F | 22°F | 62% | 6.9 mph | 41% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00093738. 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 January in Sterling?
The warmest January temperature on this station's record (since 1960) is 79°F, on January 26, 2024; the coldest is −18°F, on January 22, 1984. The wettest January brought 6.61 in (1979); the snowiest, 30.9 inches (1996).
The January mean against the 1991-2020 normal of 33.9°F: 2021 35.5°F (+1.6), 2022 31.4°F (−2.5), 2023 42.3°F (+8.4), 2024 36.9°F (+3.0), 2025 30.4°F (−3.5), 2026 30.6°F (−3.3). 3 of 6 ran warmer than normal.
| January | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 35.5°F | +1.6°F | 1.88 in |
| 2022 | 31.4°F | −2.5°F | 3.90 in |
| 2023 | 42.3°F | +8.4°F | 1.36 in |
| 2024 | 36.9°F | +3.0°F | 6.00 in |
| 2025 | 30.4°F | −3.5°F | 1.99 in |
| 2026 | 30.6°F | −3.3°F | 3.18 in |
Source: records: ACIS, station USW00093738; recent months: ACIS, station USW00093738. Records and recent months use complete months only.
How does January in Sterling compare across Virginia?
Across the 81 places PlainClimate covers in Virginia, January normal highs run from 40°F in Hot Springs to 54°F in Chesapeake; Sterling's is 43°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.