Roper climate

Roper Weather in December

NOAA 1991-2020 normals for Plymouth 5 E, 4 km from Roper

Average highs run from 60°F on December 1 to 54°F on December 31, and lows from 39°F to 35°F. Normal precipitation for the month is 3.64 in over about 12 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 Roper, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

December at a glance

Average high
57°F
Average low
37°F
Precipitation
3.64 in
Snowfall
0.1 in
Record high
87°FDec 3, 1922
Record low
5°FDec 30, 1917
Chance of a freeze
99%
Daylight
9 h 55 min to 9 h 46 min
Cloud cover
58%
Humidity
83%
Dew point
41°F
Wind
8.7 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 160°F39°F80°F 200114°F 192936%0%
Dec 260°F39°F75°F 199120°F 194736%0%
Dec 359°F39°F87°F 192220°F 191036%0%
Dec 459°F39°F77°F 197818°F 194036%0%
Dec 559°F38°F76°F 198217°F 193536%1%
Dec 659°F38°F78°F 199822°F 190736%1%
Dec 758°F38°F80°F 199815°F 195436%1%
Dec 858°F38°F76°F 199811°F 195437%1%
Dec 958°F38°F80°F 197818°F 200637%1%
Dec 1058°F38°F76°F 198619°F 191737%1%
Dec 1158°F37°F76°F 197114°F 191737%1%
Dec 1257°F37°F76°F 193115°F 195737%1%
Dec 1357°F37°F77°F 192712°F 196237%1%
Dec 1457°F37°F76°F 192716°F 196037%1%
Dec 1557°F37°F74°F 192913°F 191737%1%
Dec 1657°F37°F77°F 197114°F 194337%1%
Dec 1756°F37°F75°F 192412°F 195137%1%
Dec 1856°F36°F76°F 192410°F 195337%1%
Dec 1956°F36°F76°F 198411°F 195338%1%
Dec 2056°F36°F76°F 193113°F 200438%1%
Dec 2156°F36°F76°F 19677°F 194238%1%
Dec 2256°F36°F74°F 201312°F 198938%1%
Dec 2355°F36°F73°F 198115°F 198938%1%
Dec 2455°F36°F73°F 193114°F 198938%1%
Dec 2555°F35°F77°F 19556°F 198338%1%
Dec 2655°F35°F74°F 19649°F 198338%1%
Dec 2755°F35°F76°F 194014°F 193538%1%
Dec 2855°F35°F74°F 197111°F 192538%1%
Dec 2955°F35°F74°F 201511°F 192538%1%
Dec 3054°F35°F78°F 19845°F 191738%1%
Dec 3154°F35°F72°F 19735°F 191738%1%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Roper, 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 6:58 AM, sunset 4:53 PM
December 31
sunrise 7:17 AM, sunset 5:03 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00316853 (Plymouth 5 E), public domain. Records: NOAA GHCN-Daily, station USC00312635, 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.