Monroe weather in December: Monroe, Louisiana: normal highs, lows, rain and records for December
Monroe in December has a normal high of 59°F and a normal low of 39°F, a daily mean of 49°F, falling from 62°F on the 1st to 57°F by the 31st. Measurable precipitation falls on 10 days in a normal December, 5.22 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 15°C and low of 4°C, 133 mm of precipitation in December.
- NOAA stationMonroe Regional Airport
- Station IDUSW00013942
- Location32.52°N 92.04°W
- Elevation79 ft (24 m)
- From the center2 miles
- Population46,622
- Jan 57° 37°
- Feb 61° 40°
- Mar 69° 47°
- Apr 77° 54°
- May 84° 63°
- Jun 91° 70°
- Jul 93° 73°
- Aug 94° 71°
- Sep 89° 66°
- Oct 79° 54°
- Nov 67° 44°
- Dec 59° 39°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Monroe in December?
The normal high is 59°F and the normal low 39°F, for a daily mean of 48.8°F. December is 6.8°F cooler than November and 2.0°F warmer than January. December is the 11th warmest month of the year in Monroe and the 2nd wettest. Across the month the normal high falls 5°F, from 62°F on December 1 to 57°F on December 31. From one year to the next December's mean temperature typically moves about 3.1°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 46°F and 52°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 |
|---|---|---|---|---|
| December 1 | 62°F | 41°F | 30% | 19% |
| December 8 | 60°F | 40°F | 31% | 20% |
| December 15 | 59°F | 39°F | 32% | 21% |
| December 22 | 58°F | 38°F | 33% | 22% |
| December 31 | 57°F | 37°F | 33% | 23% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 62°F | 41°F | 30% | 19% | 10 h 10 min |
| December 2 | 62°F | 40°F | 30% | 19% | 10 h 10 min |
| December 3 | 62°F | 40°F | 30% | 19% | 10 h 10 min |
| December 4 | 61°F | 40°F | 31% | 20% | 10 h 10 min |
| December 5 | 61°F | 40°F | 31% | 20% | 10 h 10 min |
| December 6 | 61°F | 40°F | 31% | 20% | 10 h 10 min |
| December 7 | 61°F | 40°F | 31% | 20% | 10 h 10 min |
| December 8 | 60°F | 40°F | 31% | 20% | 10 h 10 min |
| December 9 | 60°F | 39°F | 31% | 20% | 10 h |
| December 10 | 60°F | 39°F | 32% | 21% | 10 h |
| December 11 | 60°F | 39°F | 32% | 21% | 10 h |
| December 12 | 60°F | 39°F | 32% | 21% | 10 h |
| December 13 | 59°F | 39°F | 32% | 21% | 10 h |
| December 14 | 59°F | 39°F | 32% | 21% | 10 h |
| December 15 | 59°F | 39°F | 32% | 21% | 10 h |
| December 16 | 59°F | 39°F | 33% | 21% | 10 h |
| December 17 | 59°F | 38°F | 33% | 22% | 10 h |
| December 18 | 58°F | 38°F | 33% | 22% | 10 h |
| December 19 | 58°F | 38°F | 33% | 22% | 10 h |
| December 20 | 58°F | 38°F | 33% | 22% | 10 h |
| December 21 | 58°F | 38°F | 33% | 22% | 10 h |
| December 22 | 58°F | 38°F | 33% | 22% | 10 h |
| December 23 | 58°F | 38°F | 33% | 22% | 10 h |
| December 24 | 58°F | 38°F | 33% | 22% | 10 h |
| December 25 | 57°F | 38°F | 33% | 22% | 10 h |
| December 26 | 57°F | 37°F | 33% | 23% | 10 h |
| December 27 | 57°F | 37°F | 33% | 23% | 10 h |
| December 28 | 57°F | 37°F | 33% | 23% | 10 h |
| December 29 | 57°F | 37°F | 33% | 23% | 10 h |
| December 30 | 57°F | 37°F | 33% | 23% | 10 h |
| December 31 | 57°F | 37°F | 33% | 23% | 10 h |
- Normal high
- 59°FDecember average
- Normal low
- 39°FDecember average
- Precipitation
- 5.22 inmonth total
- Days with precipitation
- 100.01 inch or more
- Nights at 32°F or colder
- 10
- Daylight
- 10 h 10 min to 10 hDecember 1 to December 31
- Days at 70°F or more
- 6
- Days at 80°F or more
- 1
- Sunshine
- 69%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00013942; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Monroe in December?
On a given December day the chance of 0.01 inch or more is 32% on average, highest around December 23 (33%). In all, 5.22 in falls on 10 days of a normal December, 2 of them with an inch or more.
In a normal December in Monroe, 10 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00013942.
How humid and windy is Monroe in December?
At 3 p.m. the normal temperature is 54°F with 55% relative humidity and a dew point of 38°F; at 6 a.m. it is 41°F with 85% humidity. The wind averages 6.9 mph, most often from the 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. | 41°F | 37°F | 85% | 5.8 mph | 55% |
| 9 a.m. | 44°F | 38°F | 79% | 7.5 mph | 56% |
| noon | 51°F | 39°F | 62% | 8.7 mph | 52% |
| 3 p.m. | 54°F | 38°F | 55% | 8.8 mph | 56% |
| 6 p.m. | 49°F | 39°F | 67% | 6.1 mph | 60% |
| 9 p.m. | 46°F | 38°F | 75% | 6.1 mph | 61% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00013942. 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 December in Monroe?
The warmest December temperature on Monroe's official record (since 1893) is 89°F, on December 17, 1908; the coldest is 5°F, on December 25, 1983. The wettest December brought 18.21 in (1911); the snowiest, 9.0 inches (1929).
The December mean against the 1991-2020 normal of 48.8°F: 2021 60.9°F (+12.1), 2022 52.0°F (+3.2), 2023 51.9°F (+3.1), 2024 53.8°F (+5.0), 2025 51.8°F (+3.0). 5 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 60.9°F | +12.1°F | 2.90 in |
| 2022 | 52.0°F | +3.2°F | 3.85 in |
| 2023 | 51.9°F | +3.1°F | 2.40 in |
| 2024 | 53.8°F | +5.0°F | 4.45 in |
| 2025 | 51.8°F | +3.0°F | 1.13 in |
Source: records: ACIS, NWS threaded record MLUthr; recent months: ACIS, station USW00013942. Records and recent months use complete months only.
How does December in Monroe compare across Louisiana?
Across the 65 places PlainClimate covers in Louisiana, December normal highs run from 56°F in Bastrop to 66°F in Houma; Monroe's is 59°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.