NOAA GHCND · LIVE

Weather on December 29

Rialto, CA

55 Years of Data

Avg High
62°F
Avg Low
45°F
Warmest
1998
71°F avg
Coldest
1971
42°F avg

About This Date

December 29th in Rialto, CA typically brings mild winter weather, with average highs around 62°F and lows near 45°F. Over 47 years of records, the warmest December 29th was in 1998 (71°F average), while the coldest was 1971 (42°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 9% of December 29th dates historically, with the wettest December 29th recording 1.07" of rain.

Planning for December 29th in Rialto, CA? Great weather for outdoor activities.

YearHighLowAvgPrecipSnow
202568°39°54°
201666°54°60°
201556°37°46°
201456°36°46°
201365°55°60°
201248°38°43°
201177°60°69°
201047°41°44°
200957°44°51°
200867°49°58°
200750°36°43°
200662°50°56°
200572°41°56°
200450°45°47°
200357°38°47°
200254°39°46°
200152°47°49°
200080°56°68°
199975°50°63°
1998warmest83°59°71°
199769°61°65°
199673°44°59°
199566°49°57°
199456°38°47°
199365°53°59°
199250°45°47°
199149°43°46°
199050°42°46°
198959°38°48°
198851°34°42°
198752°36°44°0.48"
198671°45°58°
198573°47°60°
198464°49°56°
198371°40°55°
198254°42°48°0.13"
198167°37°52°
198084°49°66°
197970°40°55°
197863°39°51°
197763°55°59°0.1"
197663°35°49°
197569°59°64°
197455°39°47°1.07"
197368°44°56°
197259°44°52°
1971coldest53°31°42°
47 years of data from FONTANA 5 N

Rialto, CA Temperature Range by Month

Average monthly highs and lows. The shaded band shows the typical daily temperature range.

30°50°70°90°JFMAMJJASOND
Avg high Avg low

Rialto, CA Monthly Precipitation

Average rainfall and snowfall per month, in inches.

0"6.7"13.3"JFMAMJJASOND0.1"0"
Rain (in) Snow (in)

Rialto, CA Daily Temperature Calendar

Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.

151015202531JanFebMarAprMayJunJulAugSepOctNovDec
Cooler
Hotter
20°40°60°80°100°

Best Time to Visit Rialto, CA

Rialto, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Pleasant (65-82°F, ≤2.5" rain) Mild Less ideal

Browse Weather History

Weather data provided by NOAA Climate Data Online. Not for critical planning.

📬 Free weekly newsletter

This week in weather history.

Five notable weather anniversaries from the week ahead — deadliest tornadoes, record temps, historic storms — every Sunday. No spam, unsubscribe anytime.

4,200+ readers · Sunday delivery