Slidell weather in January: Slidell, Louisiana: normal highs, lows, rain and records for January
Slidell in January has a normal high of 62°F and a normal low of 41°F, a daily mean of 51°F, holding near 62°F all month. Measurable precipitation falls on 10 days in a normal January, 5.57 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 17°C and low of 5°C, 141 mm of precipitation in January.
- NOAA stationSlidell Airport
- Station IDUSW00053865
- Location30.34°N 89.82°W
- Elevation27 ft (8 m)
- Population28,440
- Jan 62° 41°
- Feb 66° 44°
- Mar 72° 50°
- Apr 78° 56°
- May 85° 64°
- Jun 90° 71°
- Jul 91° 73°
- Aug 91° 73°
- Sep 88° 69°
- Oct 81° 57°
- Nov 71° 47°
- Dec 64° 43°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Slidell in January?
The normal high is 62°F and the normal low 41°F, for a daily mean of 51.4°F. January is 2.1°F cooler than December and 3.8°F cooler than February. January is the 12th warmest month of the year in Slidell and the 4th wettest. Across the month the normal high rises 1°F, from 62°F on January 1 to 63°F on January 31. From one year to the next January's mean temperature typically moves about 3.6°F either way (NOAA's standard deviation), so roughly two Januarys in three average between 48°F and 55°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 | 62°F | 41°F | 33% | 22% |
| January 8 | 62°F | 41°F | 33% | 22% |
| January 15 | 62°F | 40°F | 33% | 22% |
| January 22 | 62°F | 41°F | 32% | 22% |
| January 31 | 63°F | 42°F | 33% | 22% |
Every day of January: normal high, low and chance of precipitation (warmest afternoon January 31, coldest night January 12)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| January 1 | 62°F | 41°F | 33% | 22% | 10 h 10 min |
| January 2 | 62°F | 41°F | 33% | 22% | 10 h 10 min |
| January 3 | 62°F | 41°F | 33% | 22% | 10 h 10 min |
| January 4 | 62°F | 41°F | 33% | 22% | 10 h 10 min |
| January 5 | 62°F | 41°F | 33% | 22% | 10 h 20 min |
| January 6 | 62°F | 41°F | 33% | 22% | 10 h 20 min |
| January 7 | 62°F | 41°F | 33% | 22% | 10 h 20 min |
| January 8 | 62°F | 41°F | 33% | 22% | 10 h 20 min |
| January 9 | 62°F | 40°F | 33% | 22% | 10 h 20 min |
| January 10 | 62°F | 40°F | 33% | 22% | 10 h 20 min |
| January 11 | 62°F | 40°F | 33% | 22% | 10 h 20 min |
| January 12 | 62°F | 40°F | 33% | 22% | 10 h 20 min |
| January 13 | 62°F | 40°F | 33% | 22% | 10 h 20 min |
| January 14 | 62°F | 40°F | 33% | 22% | 10 h 20 min |
| January 15 | 62°F | 40°F | 33% | 22% | 10 h 20 min |
| January 16 | 62°F | 40°F | 33% | 22% | 10 h 20 min |
| January 17 | 62°F | 40°F | 33% | 22% | 10 h 30 min |
| January 18 | 62°F | 40°F | 33% | 22% | 10 h 30 min |
| January 19 | 62°F | 40°F | 32% | 22% | 10 h 30 min |
| January 20 | 62°F | 41°F | 32% | 22% | 10 h 30 min |
| January 21 | 62°F | 41°F | 32% | 22% | 10 h 30 min |
| January 22 | 62°F | 41°F | 32% | 22% | 10 h 30 min |
| January 23 | 62°F | 41°F | 32% | 22% | 10 h 30 min |
| January 24 | 62°F | 41°F | 33% | 22% | 10 h 30 min |
| January 25 | 62°F | 41°F | 33% | 22% | 10 h 30 min |
| January 26 | 63°F | 41°F | 33% | 22% | 10 h 40 min |
| January 27 | 63°F | 41°F | 33% | 22% | 10 h 40 min |
| January 28 | 63°F | 41°F | 33% | 22% | 10 h 40 min |
| January 29 | 63°F | 41°F | 33% | 22% | 10 h 40 min |
| January 30 | 63°F | 42°F | 33% | 22% | 10 h 40 min |
| January 31 | 63°F | 42°F | 33% | 22% | 10 h 40 min |
- Normal high
- 62°FJanuary average
- Normal low
- 41°FJanuary average
- Precipitation
- 5.57 inmonth total
- Days with precipitation
- 100.01 inch or more
- Nights at 32°F or colder
- 8
- Daylight
- 10 h 10 min to 10 h 40 minJanuary 1 to January 31
- Days at 70°F or more
- 9
- Sunshine
- 73%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00053865; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Slidell in January?
On a given January day the chance of 0.01 inch or more is 33% on average, highest around January 4 (33%). In all, 5.57 in falls on 10 days of a normal January, 2 of them with an inch or more.
In a normal January in Slidell, 8 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00053865.
What are the records for January in Slidell?
The warmest January temperature on this station's record (since 1994) is 83°F, on January 1, 2022; the coldest is 8°F, on January 22, 2025. The wettest January brought 19.73 in (1991).
The January mean against the 1991-2020 normal of 51.4°F: 2021 52.5°F (+1.1), 2022 50.0°F (−1.4), 2023 58.3°F (+6.9), 2024 51.1°F (−0.3), 2025 49.0°F (−2.4), 2026 51.9°F (+0.5). 3 of 6 ran warmer than normal.
| January | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 52.5°F | +1.1°F | 2.25 in |
| 2022 | 50.0°F | −1.4°F | 1.26 in |
| 2023 | 58.3°F | +6.9°F | 4.29 in |
| 2024 | 51.1°F | −0.3°F | 7.33 in |
| 2025 | 49.0°F | −2.4°F | 4.99 in |
| 2026 | 51.9°F | +0.5°F | 3.25 in |
Source: records: ACIS, station USW00053865; recent months: ACIS, station USW00053865. Records and recent months use complete months only.
How does January in Slidell compare across Louisiana?
Across the 65 places PlainClimate covers in Louisiana, January normal highs run from 54°F in Lake Providence to 64°F in Houma; Slidell's is 62°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.