West Dennis climate

West Dennis Weather in December

NOAA 1991-2020 normals for W Harwich, 4.7 km from West Dennis

Average highs run from 47°F on December 1 to 40°F on December 31, and lows from 33°F to 27°F. Normal precipitation for the month is 4.83 in.

December day by day

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

Normal daily high and low temperature at West Dennis, in °F, with the record for each date.020406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

December at a glance

Average high
43°F
Average low
30°F
Precipitation
4.83 in
Snowfall
2.1 in
Record high
67°FDec 4, 1998
Record low
6°FDec 25, 1999
Chance of a freeze
100%
Daylight
9 h 23 min to 9 h 12 min
Cloud cover
75%
Humidity
80%
Dew point
35°F
Wind
19.0 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 147°F33°F63°F 200120°F 20072%
Dec 247°F33°F60°F 200618°F 20032%
Dec 347°F33°F59°F 201216°F 20032%
Dec 446°F33°F67°F 199815°F 20022%
Dec 546°F32°F65°F 200114°F 20252%
Dec 646°F32°F64°F 200114°F 20062%
Dec 746°F32°F65°F 199810°F 20022%
Dec 845°F31°F58°F 201114°F 20052%
Dec 945°F31°F58°F 200913°F 20022%
Dec 1045°F31°F60°F 200810°F 20003%
Dec 1145°F31°F61°F 202114°F 20163%
Dec 1244°F30°F62°F 202111°F 20133%
Dec 1344°F30°F57°F 202010°F 20133%
Dec 1444°F30°F58°F 201517°F 20053%
Dec 1544°F30°F61°F 201513°F 20253%
Dec 1643°F29°F57°F 20087°F 20163%
Dec 1743°F29°F62°F 202112°F 20133%
Dec 1843°F29°F59°F 202312°F 20094%
Dec 1943°F29°F54°F 202514°F 20114%
Dec 2042°F29°F54°F 20019°F 20044%
Dec 2142°F28°F57°F 19997°F 20044%
Dec 2242°F28°F60°F 201314°F 20244%
Dec 2342°F28°F56°F 201514°F 20094%
Dec 2441°F28°F64°F 201513°F 20224%
Dec 2541°F28°F64°F 20156°F 19994%
Dec 2641°F27°F55°F 20157°F 19994%
Dec 2741°F27°F59°F 201510°F 20124%
Dec 2841°F27°F56°F 20089°F 20175%
Dec 2941°F27°F58°F 20186°F 20175%
Dec 3040°F27°F55°F 20228°F 20175%
Dec 3140°F27°F53°F 20116°F 20175%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at West Dennis, in percent, and of at least 0.1 inch of snowfall.0123451102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EST).

December 1
sunrise 6:48 AM, sunset 4:11 PM
December 31
sunrise 7:08 AM, sunset 4:20 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00199227 (W Harwich), public domain. Records: NOAA GHCN-Daily, station USW00094720, 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.