Phoenix, AZ weather in March
Phoenix is mild and mostly dry in March: highs average 78°F and nights drop to about 55°F. There are about 3 days with rain. A great month for outdoor plans.
- Normal high
- 78°F
- Normal low
- 55°F
- Wet days
- 3
- 0.8 in total
- Muggy days
- 0
- dew point 65°F+
How March changes from start to finish
| March 1 | March 31 | |
|---|---|---|
| Normal high | 74°F | 82°F |
| Normal low | 52°F | 57°F |
| Chance of a wet day | 13% | 8% |
| Sunrise / sunset | 6:56 am / 6:24 pm | 6:17 am / 6:47 pm |
| Daylight | 11.5 h | 12.5 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Arizona time (no daylight saving)).
A typical March day
- 6 am56°Fdew point 36°F
- 9 am62°Fdew point 35°F
- Noon71°Fdew point 32°F
- 3 pm76°Fdew point 30°F
- 6 pm75°Fdew point 30°F
- 9 pm69°Fdew point 33°F
NOAA hourly normals (local standard time) from Phoenix Sky Harbor Intl Airport (4 mi away); average wind 6 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F16 of 31
- Hot dayshigh 90°F or more2 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow3 of 31
- Notable rainat least 0.10 in2 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per March, counted from daily records for each year 1991-2020.
Rain in March
Normal precipitation is 0.8 in; a dry March brings about 0.09 in and a wet one about 1.3 in (25th and 75th percentiles). About 1 day brings half an inch or more.
How March varies from year to year
- Warmest March, 1991-20202004: average high 85°F
- Coolest March1991: average high 71°F
- Wettest March2000: 3.0 in
- Driest March2008: no measurable precipitation
- Highest reading99°F (March 17, 2007)
- Lowest reading38°F (March 3, 2002)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
March compared with February and April
| February | March | April | |
|---|---|---|---|
| Normal high | 71°F | 78°F | 86°F |
| Normal low | 49°F | 55°F | 61°F |
| Wet days | 4 | 3 | 2 |
| Comfortable days | 19 | 16 | 7 |
| Daylight | 11.0 h | 12.0 h | 13.0 h |
Highs change by +7°F from February and +8°F into April.
Nearby alternatives in March
- Cooler: Sedona, AZ100 mi · high 68°F · 6 wet days
How Phoenix ranks in March
- Normal high28th warmest of 378 cities; 5th of 13 in Arizona
- Wet days10th driest of 378
- Comfortable days78th most of 339
Heating and cooling
March has 65 heating degree days and 105 cooling degree days (base 65°F), 3% of the year's total heating and cooling demand.
Questions
How hot is Phoenix in March?
The normal high is 78°F and the normal low is 55°F. From 1991 to 2020 the hottest March reading was 99°F (most recently on March 17, 2007).
Does it rain a lot in Phoenix in March?
About 3 days in March have at least 0.01 in of precipitation, and the normal total is 0.8 in. The wettest March in 1991-2020 was in 2000 (3.0 in); the driest was in 2008, with no measurable precipitation.
Is March a good time to visit Phoenix?
March ranks 3rd of 12 months on our comfort score for Phoenix (70 out of 100). It has about 16 comfortable days and about 2 days at 90°F or hotter. The best months are January and February.
Where the numbers come from
- Temperature, rain, frost dates and humidity and wind by hour: Phoenix Sky Harbor Intl Airport (USW00023183), 4.3 mi ESE of the city center, 1,107 ft . NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: Tempe ASU (USC00028499), 8.9 mi E of the city center, 1,167 ft (79 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Phoenix Sky Harbor Intl Airport (722780-23183), 4.3 mi ESE of the city center, 1,113 ft . Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).