Weather in O Fallon in December
day
+41
evening
+39
Average December daytime temperature in O Fallon is +41°F, night +39°F. This data was obtained from our O Fallon weather archive.
- Cloudy
- clear - 8 days Overcast - 23 days
- Wind
- average wind speed is 11.2 mph
- Pressure
- 29.5 inHg
- Precipitation
- rain / snow / hail - 5 days
Weather archive by month and season
Average weather in O Fallon in December by year
Average day and night temperature in O Fallon in December data for the period from 2009 to 2012 years. Number of cloudy and clear days, atmospheric pressure and wind speed.
- 2012
- 2011
- 2010
- 2009
| Temperature °F | Weather characteristics | Pressure inHg | Wind speed mph |
| Day | +45 |
| 29.4 | 11.2 | |
| Evening | +43 |
| 29.4 | 8.9 |
| Day | +45 |
| 29.6 | 11.2 | |
| Evening | +43 |
| 29.6 | 6.7 |
| Day | +34 |
| 29.5 | 11.2 | |
| Evening | +32 |
| 29.5 | 8.9 |
| Day | +37 |
| 29.4 | 13.4 | |
| Evening | +36 |
| 29.4 | 11.2 |
Weather archive in O Fallon in December
Graph shows the average in December temperature in O Fallon in the evening and daytime. The maximum average daily temperature according to our archive was +45°F and the minimum dropped to a +34°F
Weather characteristics
Precipitation in December
Graph displays the average number of rainy or snowy days in O Fallon over the years. Total average number of days on our data is 5 days.
Minimum and maximum
world's temperature today
world's temperature today
Russia
Mys Shmidta
Mys Shmidta
- day
- +23°F
- night
- +5°F
Pakistan
Jacobābād
Jacobābād
- day
- +118°F
- night
- +81°F
O Fallon
The hottest months:
- July
- +93 °F
- August
- +88 °F
- June
- +86 °F
The coldest months:
- January
- +36 °F
- December
- +41 °F
- February
- +43 °F
Most precipitations:
- January
- 5 D
- December
- 5 D
- March
- 3 D
Most windy months mph:
- February
- 13.4 mph
- March
- 13.4 mph
- May
- 13.4 mph
Most sunny months days:
- November
- 9 D
- August
- 8 D
- October
- 8 D
Temperature units
°F°C
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