Tucson climate

Tucson Weather in December

NOAA 1991-2020 normals for Tucson WFO, 2.7 km from Tucson

Average highs run from 68°F on December 1 to 64°F on December 31, and lows from 44°F to 41°F. Normal precipitation for the month is 0.92 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 Tucson, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

December at a glance

Average high
65°F
Average low
42°F
Precipitation
0.92 in
Record high
85°FDec 1, 2021
Record low
16°FDec 24, 1974
Chance of a freeze
70%
Daylight
10 h 12 min to 10 h 04 min
Cloud cover
39%
Humidity
47%
Dew point
27°F
Wind
8.5 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 168°F44°F85°F 202128°F 200610%0%
Dec 268°F44°F83°F 202129°F 194811%0%
Dec 368°F44°F84°F 195427°F 195711%0%
Dec 467°F43°F81°F 198725°F 199911%0%
Dec 567°F43°F82°F 202323°F 194811%0%
Dec 667°F43°F83°F 202321°F 196011%0%
Dec 766°F43°F82°F 197020°F 196011%0%
Dec 866°F42°F83°F 198120°F 197811%0%
Dec 966°F42°F81°F 198123°F 197811%0%
Dec 1065°F42°F82°F 195026°F 196711%0%
Dec 1165°F42°F80°F 195027°F 196612%0%
Dec 1265°F42°F79°F 200426°F 194912%0%
Dec 1365°F41°F84°F 201026°F 194912%0%
Dec 1465°F41°F83°F 202527°F 194912%0%
Dec 1564°F41°F84°F 201623°F 198712%0%
Dec 1664°F41°F79°F 196927°F 197112%0%
Dec 1764°F41°F83°F 201327°F 195412%0%
Dec 1864°F41°F82°F 202426°F 199612%0%
Dec 1964°F41°F82°F 202426°F 199613%0%
Dec 2064°F41°F82°F 202426°F 200613%0%
Dec 2164°F41°F83°F 202422°F 194913%0%
Dec 2264°F41°F85°F 202519°F 196813%0%
Dec 2364°F41°F84°F 202521°F 199013%0%
Dec 2464°F41°F79°F 202416°F 197413%0%
Dec 2564°F41°F81°F 200524°F 195313%0%
Dec 2664°F41°F78°F 195525°F 198713%0%
Dec 2764°F41°F80°F 198024°F 198713%0%
Dec 2864°F41°F80°F 201718°F 195413%0%
Dec 2964°F41°F82°F 201719°F 200313%0%
Dec 3064°F41°F82°F 201722°F 198813%0%
Dec 3164°F41°F77°F 200824°F 196913%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Tucson, in percent, and of at least 0.1 inch of snowfall.0510151102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MST).

December 1
sunrise 7:07 AM, sunset 5:19 PM
December 31
sunrise 7:25 AM, sunset 5:29 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00028815 (Tucson WFO), public domain. Records: NOAA GHCN-Daily, station USW00023160, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.