Danbury climate

Danbury Weather in December

NOAA 1991-2020 normals for Grafton, 8.4 km from Danbury

Average highs run from 39°F on December 1 to 30°F on December 31, and lows from 20°F to 11°F. Normal precipitation for the month is 2.98 in over about 11 wet days.

December day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Danbury, in °F, with the record for each date.-40-20020406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

December at a glance

Average high
34°F
Average low
15°F
Precipitation
2.98 in
Snowfall
20.6 in
Record high
65°FDec 5, 1982
Record low
-23°FDec 17, 1951
Chance of a freeze
100%
Daylight
9 h 11 min to 9 h 01 min
Cloud cover
67%
Humidity
90%
Dew point
21°F
Wind
5.6 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Dec 139°F20°F62°F 1962-3°F 195838%11%
Dec 238°F20°F61°F 2001-10°F 198938%12%
Dec 338°F19°F59°F 2006-10°F 198938%12%
Dec 438°F19°F51°F 2001-10°F 197638%13%
Dec 537°F19°F65°F 1982-4°F 198938%13%
Dec 637°F18°F58°F 2001-8°F 198938%14%
Dec 737°F18°F64°F 20010°F 198938%14%
Dec 836°F17°F54°F 1998-6°F 197238%15%
Dec 936°F17°F51°F 1974-14°F 198938%15%
Dec 1036°F17°F53°F 1987-14°F 198938%15%
Dec 1135°F16°F61°F 2003-12°F 195838%16%
Dec 1235°F16°F56°F 1969-11°F 198838%16%
Dec 1335°F16°F59°F 1979-9°F 198838%16%
Dec 1434°F15°F55°F 1984-11°F 195838%16%
Dec 1534°F15°F46°F 2006-10°F 200538%17%
Dec 1634°F15°F46°F 1993-9°F 200538%17%
Dec 1733°F15°F50°F 1956-23°F 195138%17%
Dec 1833°F14°F57°F 2000-11°F 198838%17%
Dec 1933°F14°F47°F 2006-12°F 198538%17%
Dec 2033°F14°F46°F 1997-17°F 195138%17%
Dec 2132°F13°F57°F 1957-16°F 198038%18%
Dec 2232°F13°F55°F 1957-15°F 198038%18%
Dec 2332°F13°F49°F 1994-15°F 196038%18%
Dec 2432°F13°F54°F 1990-23°F 198938%18%
Dec 2531°F12°F50°F 1957-23°F 198938%18%
Dec 2631°F12°F54°F 1982-22°F 198038%18%
Dec 2731°F12°F55°F 1982-17°F 200038%18%
Dec 2831°F12°F41°F 2003-14°F 196038%19%
Dec 2931°F11°F54°F 1982-16°F 196039%19%
Dec 3031°F11°F57°F 1984-14°F 198739%19%
Dec 3130°F11°F44°F 1951-14°F 195639%19%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Danbury, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EST).

December 1
sunrise 7:01 AM, sunset 4:12 PM
December 31
sunrise 7:20 AM, sunset 4:21 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00273530 (Grafton), public domain. Records: NOAA GHCN-Daily, station USC00276945, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.