Climate averages 1991–2020
Bloomington (Indiana), United States weather
in December.
A cold, moderately wet month: the 11th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cold month in Bloomington (Indiana), United States: daytime highs average 5.2°C and nights cool to about -1.9°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 86 mm of rain on roughly 10 days, which makes December a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 28 min on an average December day.
The nearest other city in this atlas is Indianapolis (74 km away). In December its highs average 4.2°C, 1.1°C cooler than Bloomington (Indiana), United States, with 78 mm of rain.
Among the 498 cities listed in the United States, Bloomington (Indiana), United States ranks joint 358th of 498 for the warmest December highs and joint 304th of 498 for the driest December (rainfall, lowest first). The mean December high of those 498 cities is 10.5°C; Bloomington (Indiana), United States is 5.3°C cooler than that mean.
From December to January, average highs fall by 2.1°C to 3.2°C, and monthly rainfall rises from 86 mm to 87 mm.
The annual picture
December in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Bloomington (Indiana), United States climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.2°C-4.7°C | -4.7°C | 87 | 9.5 | 9.810 h |
| February | 5.7°C-3.3°C | -3.3°C | 74 | 8.5 | 10.711 h |
| March | 11.3°C1.4°C | 1.4°C | 101 | 10.8 | 11.912 h |
| April | 17.6°C7.3°C | 7.3°C | 128 | 12.4 | 13.213 h |
| May | 22.5°C13.0°C | 13.0°C | 130 | 13.4 | 14.314 h |
| June | 27.3°C17.9°C | 17.9°C | 111 | 11.9 | 14.915 h |
| July | 29.3°C19.9°C | 19.9°C | 88 | 11.4 | 14.615 h |
| August | 28.8°C19.3°C | 19.3°C | 79 | 8.9 | 13.714 h |
| September | 25.3°C15.6°C | 15.6°C | 73 | 7.9 | 12.512 h |
| October | 18.5°C9.5°C | 9.5°C | 83 | 8.2 | 11.211 h |
| November | 11.0°C3.2°C | 3.2°C | 92 | 8.9 | 10.110 h |
| December, selected | 5.2°C-1.9°C | -1.9°C | 86 | 10.1 | 9.59 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Indianapolis in DecemberUnited States · 74 kmHigh 4.2°C · Low -2.9°C · 78 mm rain
- Carmel in DecemberUnited States · 97 kmHigh 3.9°C · Low -3.3°C · 76 mm rain
- Fishers in DecemberUnited States · 98 kmHigh 4.0°C · Low -3.3°C · 76 mm rain
- Louisville in DecemberUnited States · 121 kmHigh 7.1°C · Low -0.5°C · 102 mm rain
- Lafayette (Indiana), United States in DecemberUnited States · 142 kmHigh 3.7°C · Low -3.6°C · 64 mm rain
- Muncie in DecemberUnited States · 150 kmHigh 3.6°C · Low -3.7°C · 74 mm rain
- Evansville in DecemberUnited States · 160 kmHigh 7.1°C · Low -0.2°C · 102 mm rain
- Cincinnati in DecemberUnited States · 174 kmHigh 5.6°C · Low -1.9°C · 92 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Bloomington) is explained once on the Bloomington (Indiana), United States year overview and on the Sources, method and limits page.