St. Joseph weather in December: St. Joseph, Missouri: normal highs, lows, rain and records for December
St. Joseph in December has a normal high of 41°F and a normal low of 21°F, a daily mean of 31°F, falling from 46°F on the 1st to 38°F by the 31st. Measurable precipitation falls on 6 days in a normal December, 1.25 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 5°C and low of −6°C, 32 mm of precipitation in December.
- NOAA stationSt Joseph Rosecrans Airport
- Station IDUSW00013993
- Location39.77°N 94.92°W
- Elevation818 ft (249 m)
- From the center6 miles
- Population71,098
- Jan 37° 17°
- Feb 43° 21°
- Mar 55° 32°
- Apr 66° 42°
- May 76° 54°
- Jun 85° 64°
- Jul 88° 67°
- Aug 86° 65°
- Sep 80° 54°
- Oct 68° 43°
- Nov 53° 31°
- Dec 41° 21°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is St. Joseph in December?
The normal high is 41°F and the normal low 21°F, for a daily mean of 31.1°F. December is 10.9°F cooler than November and 3.8°F warmer than January. December is the 11th warmest month of the year in St. Joseph and the 10th wettest. Across the month the normal high falls 8°F, from 46°F on December 1 to 38°F on December 31. From one year to the next December's mean temperature typically moves about 4.6°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 27°F and 36°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 18%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 46°F | 25°F | 18% | 9% |
| December 8 | 43°F | 23°F | 18% | 8% |
| December 15 | 41°F | 21°F | 18% | 8% |
| December 22 | 39°F | 20°F | 17% | 8% |
| December 31 | 38°F | 18°F | 16% | 8% |
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 | 46°F | 25°F | 18% | 9% | 9 h 40 min |
| December 2 | 46°F | 25°F | 18% | 9% | 9 h 30 min |
| December 3 | 45°F | 24°F | 18% | 8% | 9 h 30 min |
| December 4 | 45°F | 24°F | 18% | 8% | 9 h 30 min |
| December 5 | 45°F | 24°F | 18% | 8% | 9 h 30 min |
| December 6 | 44°F | 24°F | 18% | 8% | 9 h 30 min |
| December 7 | 44°F | 23°F | 18% | 8% | 9 h 30 min |
| December 8 | 43°F | 23°F | 18% | 8% | 9 h 30 min |
| December 9 | 43°F | 23°F | 18% | 8% | 9 h 30 min |
| December 10 | 43°F | 22°F | 18% | 8% | 9 h 30 min |
| December 11 | 42°F | 22°F | 18% | 8% | 9 h 30 min |
| December 12 | 42°F | 22°F | 18% | 8% | 9 h 20 min |
| December 13 | 42°F | 22°F | 18% | 8% | 9 h 20 min |
| December 14 | 41°F | 21°F | 18% | 8% | 9 h 20 min |
| December 15 | 41°F | 21°F | 18% | 8% | 9 h 20 min |
| December 16 | 41°F | 21°F | 18% | 8% | 9 h 20 min |
| December 17 | 40°F | 21°F | 18% | 8% | 9 h 20 min |
| December 18 | 40°F | 20°F | 18% | 8% | 9 h 20 min |
| December 19 | 40°F | 20°F | 18% | 8% | 9 h 20 min |
| December 20 | 40°F | 20°F | 18% | 8% | 9 h 20 min |
| December 21 | 39°F | 20°F | 17% | 8% | 9 h 20 min |
| December 22 | 39°F | 20°F | 17% | 8% | 9 h 20 min |
| December 23 | 39°F | 19°F | 17% | 8% | 9 h 20 min |
| December 24 | 39°F | 19°F | 17% | 8% | 9 h 20 min |
| December 25 | 38°F | 19°F | 17% | 8% | 9 h 20 min |
| December 26 | 38°F | 19°F | 17% | 8% | 9 h 20 min |
| December 27 | 38°F | 19°F | 17% | 8% | 9 h 20 min |
| December 28 | 38°F | 19°F | 17% | 8% | 9 h 20 min |
| December 29 | 38°F | 18°F | 16% | 8% | 9 h 20 min |
| December 30 | 38°F | 18°F | 16% | 8% | 9 h 20 min |
| December 31 | 38°F | 18°F | 16% | 8% | 9 h 20 min |
- Normal high
- 41°FDecember average
- Normal low
- 21°FDecember average
- Precipitation
- 1.25 inmonth total
- Days with precipitation
- 60.01 inch or more
- Nights at 32°F or colder
- 27
- Daylight
- 9 h 40 min to 9 h 20 minDecember 1 to December 31
- Sunshine
- 70%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00013993; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in St. Joseph in December?
On a given December day the chance of 0.01 inch or more is 18% on average, highest around December 5 (18%). In all, 1.25 in falls on 6 days of a normal December.
In a normal December in St. Joseph, 27 nights fall to freezing and 8 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00013993.
What are the records for December in St. Joseph?
The warmest December temperature on this station's record (since 1908) is 73°F, on December 15, 2021; the coldest is −24°F, on December 23, 1989. The wettest December brought 4.77 in (1982); the snowiest, 19.9 inches (2009).
The December mean against the 1991-2020 normal of 31.1°F: 2021 39.0°F (+7.9), 2022 28.3°F (−2.8), 2023 39.4°F (+8.3), 2024 36.1°F (+5.0), 2025 32.8°F (+1.7). 4 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 39.0°F | +7.9°F | 0.21 in |
| 2022 | 28.3°F | −2.8°F | 0.92 in |
| 2023 | 39.4°F | +8.3°F | 2.88 in |
| 2024 | 36.1°F | +5.0°F | 1.32 in |
| 2025 | 32.8°F | +1.7°F | 0.61 in |
Source: records: ACIS, station USW00013993; recent months: ACIS, station USW00013993. Records and recent months use complete months only.
How does December in St. Joseph compare across Missouri?
Across the 134 places PlainClimate covers in Missouri, December normal highs run from 37°F in Tarkio to 49°F in Neosho; St. Joseph's is 41°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.