Waldon climate

Waldon Weather in December

NOAA 1991-2020 normals for Concord Wwtp, 6.5 km from Waldon

Average highs run from 61°F on December 1 to 58°F on December 31, and lows from 43°F to 41°F. Normal precipitation for the month is 3.55 in over about 9 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 Waldon, in °F, with the record for each date.20406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

December at a glance

Average high
59°F
Average low
41°F
Precipitation
3.55 in
Record high
75°FDec 2, 2011
Record low
24°FDec 10, 2013
Chance of a freeze
57%
Daylight
9 h 44 min to 9 h 35 min
Cloud cover
60%
Humidity
79%
Dew point
40°F
Wind
6.9 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
Dec 161°F43°F71°F 202133°F 200426%
Dec 261°F42°F75°F 201132°F 200427%
Dec 361°F42°F67°F 200734°F 200427%
Dec 460°F42°F70°F 201429°F 201327%
Dec 560°F42°F68°F 201425°F 201328%
Dec 660°F42°F68°F 201426°F 201328%
Dec 760°F42°F74°F 202031°F 201328%
Dec 860°F42°F69°F 202428°F 201328%
Dec 959°F41°F68°F 201527°F 200928%
Dec 1059°F41°F70°F 202024°F 201329%
Dec 1159°F41°F67°F 201427°F 201329%
Dec 1259°F41°F66°F 201728°F 201329%
Dec 1359°F41°F65°F 202330°F 201329%
Dec 1459°F41°F67°F 201730°F 201329%
Dec 1559°F41°F64°F 201629°F 201330%
Dec 1658°F41°F67°F 201731°F 199930%
Dec 1758°F41°F67°F 202530°F 200830%
Dec 1858°F41°F65°F 201328°F 200630%
Dec 1958°F41°F74°F 199927°F 200630%
Dec 2058°F41°F69°F 199928°F 201230%
Dec 2158°F41°F69°F 199929°F 201130%
Dec 2258°F41°F70°F 199929°F 200730%
Dec 2358°F41°F67°F 201429°F 201130%
Dec 2458°F41°F67°F 201326°F 201130%
Dec 2558°F41°F64°F 199927°F 201130%
Dec 2658°F41°F65°F 200629°F 201131%
Dec 2758°F41°F64°F 201728°F 201531%
Dec 2858°F41°F67°F 199931°F 200331%
Dec 2958°F41°F66°F 202332°F 200031%
Dec 3058°F41°F64°F 201630°F 200631%
Dec 3158°F41°F65°F 201929°F 201531%

Chance of rain

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

Sunrise and sunset

Times for 2026, local time (PST).

December 1
sunrise 7:05 AM, sunset 4:49 PM
December 31
sunrise 7:24 AM, sunset 4:59 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00041967 (Concord Wwtp), public domain. Records: NOAA GHCN-Daily, station USW00023254, 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.