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Weather on March 20

Phoenix, AZ

55 Years of Data

Avg High
80°F
Avg Low
50°F
Warmest
2026
84°F avg
Coldest
1982
52°F avg

About This Date

March 20th in Phoenix, AZ typically brings warm spring weather, with average highs around 80°F and lows near 50°F — a 30°F daily swing. Over 56 years of records, the warmest March 20th was in 2026 (84°F average), while the coldest was 1982 (52°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 11% of March 20th dates historically, with the wettest March 20th recording 1.93" of rain. The last decade has been 1.1°F cooler on this date compared to 20-30 years ago.

The last decade has been 1.1°F cooler on this date compared to 20-30 years ago.

Planning for March 20th in Phoenix, AZ? Stay hydrated and seek shade during peak afternoon hours.

Warming Trend
1.0°F per decade on this date
YearHighLowAvgPrecipSnow
2026warmest105°63°84°
202577°45°61°
202478°50°64°
202371°51°61°0.89"
202274°57°65°
202185°50°67°
202068°43°55°
201984°54°69°0.13"
201874°46°60°
201796°62°79°
201690°56°73°
201580°59°70°
201481°47°64°
201383°56°69°
201268°39°54°
201176°55°65°
201078°53°66°
200989°58°73°
200883°49°66°
200786°56°71°
200663°43°53°
200573°53°63°
200493°59°76°
200373°47°60°
200283°45°64°
200190°54°72°
200083°60°71°
199988°52°70°
199879°44°61°
199796°53°75°
199690°51°70°
199586°53°70°
199474°56°65°0.28"
199381°53°67°
199280°45°62°
199165°42°53°
199090°58°74°
198986°58°72°
198886°45°65°
198770°43°56°
198679°45°62°
198573°43°58°
198488°47°67°
198366°41°54°
1982coldest67°37°52°
198178°53°66°0.2"
198073°41°57°
197964°50°57°1.17"
197885°55°70°
197777°40°58°
197677°49°63°
197583°48°65°
197474°54°64°1.93"
197376°48°62°
197290°54°72°
197183°43°63°
56 years of data from BEARDSLEY

Phoenix, AZ Temperature Range by Month

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

30°50°70°90°110°JFMAMJJASOND
Avg high Avg low

Phoenix, AZ Monthly Precipitation

Average rainfall and snowfall per month, in inches.

0"4.2"8.3"JFMAMJJASOND0.5"0"
Rain (in) Snow (in)

Phoenix, AZ 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 Phoenix, AZ

Phoenix, AZ 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.

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