Arivaca Junction climate

Arivaca Junction Weather in December

NOAA 1991-2020 normals for Tumacacori Nm, 17.7 km from Arivaca Junction

Average highs run from 66°F on December 1 to 62°F on December 31, and lows from 34°F to 31°F. Normal precipitation for the month is 1.02 in over about 4 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 Arivaca Junction, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

December at a glance

Average high
63°F
Average low
32°F
Precipitation
1.02 in
Record high
83°FDec 22, 2025
Record low
14°FDec 28, 2003
Chance of a freeze
100%
Daylight
10 h 14 min to 10 h 07 min
Cloud cover
36%
Humidity
48%
Dew point
26°F
Wind
8.9 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 166°F34°F80°F 200321°F 200410%0%
Dec 265°F34°F79°F 202421°F 200410%0%
Dec 365°F33°F79°F 200325°F 200410%0%
Dec 465°F33°F82°F 200723°F 199911%0%
Dec 564°F33°F81°F 201222°F 200511%0%
Dec 664°F33°F81°F 201022°F 200511%0%
Dec 764°F33°F78°F 201521°F 200511%0%
Dec 864°F32°F78°F 201525°F 201111%0%
Dec 963°F32°F79°F 201524°F 199911%0%
Dec 1063°F32°F81°F 201527°F 201311%0%
Dec 1163°F32°F80°F 202525°F 201211%0%
Dec 1263°F32°F81°F 201023°F 199912%0%
Dec 1363°F32°F81°F 201022°F 200112%0%
Dec 1462°F32°F81°F 202523°F 200112%0%
Dec 1562°F31°F81°F 201622°F 202212%0%
Dec 1662°F31°F78°F 201319°F 201512%0%
Dec 1762°F31°F82°F 201319°F 201512%0%
Dec 1862°F31°F78°F 202424°F 201612%0%
Dec 1962°F31°F81°F 202523°F 200212%0%
Dec 2062°F31°F81°F 202420°F 200612%0%
Dec 2162°F31°F82°F 202418°F 200612%0%
Dec 2262°F31°F83°F 202520°F 200712%0%
Dec 2362°F31°F79°F 202523°F 200112%0%
Dec 2462°F31°F77°F 202424°F 200112%0%
Dec 2562°F31°F77°F 201722°F 200412%0%
Dec 2662°F31°F77°F 202219°F 200712%0%
Dec 2762°F31°F76°F 202219°F 201412%0%
Dec 2862°F31°F78°F 201714°F 200312%0%
Dec 2962°F31°F79°F 201718°F 200312%0%
Dec 3062°F31°F80°F 201721°F 201512%0%
Dec 3162°F31°F76°F 201124°F 200612%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Arivaca Junction, in percent, and of at least 0.1 inch of snowfall.02.557.51012.51102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MST).

December 1
sunrise 7:06 AM, sunset 5:20 PM
December 31
sunrise 7:24 AM, sunset 5:31 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00028865 (Tumacacori Nm), public domain. Records: NOAA GHCN-Daily, station USW00003196, 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.