Phoenix · United States

Phoenix in May: every year compared

In May, Phoenix averages highs of 34.7 °C and lows of 19.9 °C, with 4 mm of precipitation. The warmest May was 1984 (30.7 °C), the coldest 1953 (23.2 °C).

Avg. highAvg. high 34.7 °C

Avg. lowAvg. low 19.9 °C

PrecipitationPrecipitation 4 mm

Rainy daysRainy days 1

Day by day through May

Normal high and low for each day of May in Phoenix.

Normal high and low, day by dayNormal 1991–2020

Every May in Phoenix, ranked

86 months of May since 1940. The last one, 2025, ranks 25 of 86 (+0.2 °C vs normal).

194019832025

2025 · 28.2 °C · +0.2 °C vs normal · rank 25 of 86

Warmest years

1198430.7 °C
2199730.6 °C
3200930.6 °C
4200130.5 °C
5202030.3 °C

Coldest years

1195323.2 °C
2197724.0 °C
3197124.2 °C
4195724.4 °C
5196524.5 °C

All 86 years in a table

Year	Mean temperature	Daytime highs	Night lows	Precipitation	Hot days (30 °C+)	Rainy days
2025	28.2 °C	34.4 °C	20.6 °C	6 mm	26 days	2 days
2024	28.1 °C	34.7 °C	19.9 °C	0 mm	29 days	0 days
2023	28.3 °C	34.4 °C	21.0 °C	4 mm	27 days	2 days
2022	29.1 °C	35.9 °C	20.7 °C	0 mm	31 days	0 days
2021	28.7 °C	35.2 °C	20.4 °C	0 mm	30 days	0 days
2020	30.3 °C	37.0 °C	21.9 °C	1 mm	31 days	0 days
2019	24.8 °C	30.5 °C	17.8 °C	3 mm	15 days	1 day
2018	28.8 °C	35.5 °C	20.4 °C	0 mm	28 days	0 days
2017	27.8 °C	34.4 °C	19.8 °C	5 mm	23 days	1 day
2016	26.8 °C	33.2 °C	19.4 °C	7 mm	25 days	1 day
2015	25.8 °C	31.7 °C	18.9 °C	13 mm	19 days	4 days
2014	28.3 °C	35.0 °C	20.3 °C	0 mm	27 days	0 days
2013	28.9 °C	35.2 °C	21.3 °C	0 mm	29 days	0 days
2012	29.6 °C	36.6 °C	20.8 °C	0 mm	30 days	0 days
2011	26.3 °C	32.8 °C	18.3 °C	0 mm	25 days	0 days
2010	26.2 °C	33.0 °C	17.7 °C	0 mm	23 days	0 days
2009	30.6 °C	36.8 °C	22.7 °C	2 mm	29 days	1 day
2008	25.7 °C	32.2 °C	17.9 °C	43 mm	23 days	3 days
2007	29.3 °C	35.6 °C	21.3 °C	0 mm	28 days	0 days
2006	29.7 °C	36.4 °C	21.5 °C	1 mm	29 days	0 days
2005	28.4 °C	35.0 °C	20.3 °C	1 mm	27 days	0 days
2004	29.3 °C	36.0 °C	20.8 °C	0 mm	31 days	0 days
2003	28.5 °C	35.3 °C	20.5 °C	0 mm	23 days	0 days
2002	27.8 °C	35.1 °C	19.2 °C	0 mm	28 days	0 days
2001	30.5 °C	37.7 °C	22.1 °C	0 mm	29 days	0 days
2000	30.0 °C	37.2 °C	21.4 °C	0 mm	29 days	0 days
1999	27.1 °C	33.8 °C	19.0 °C	0 mm	27 days	0 days
1998	25.4 °C	31.8 °C	17.6 °C	5 mm	23 days	1 day
1997	30.6 °C	37.2 °C	22.4 °C	3 mm	31 days	1 day
1996	29.4 °C	36.1 °C	21.2 °C	0 mm	28 days	0 days
1995	25.4 °C	31.5 °C	17.7 °C	0 mm	24 days	0 days
1994	26.5 °C	33.5 °C	18.3 °C	13 mm	24 days	2 days
1993	28.7 °C	36.0 °C	20.4 °C	0 mm	30 days	0 days
1992	27.7 °C	34.3 °C	20.5 °C	22 mm	27 days	4 days
1991	25.9 °C	33.3 °C	16.7 °C	0 mm	24 days	0 days
1990	26.7 °C	33.4 °C	18.8 °C	4 mm	26 days	2 days
1989	28.4 °C	35.5 °C	20.2 °C	0 mm	26 days	0 days
1988	27.1 °C	34.5 °C	18.4 °C	0 mm	24 days	0 days
1987	27.2 °C	33.4 °C	20.0 °C	4 mm	25 days	1 day
1986	27.9 °C	34.9 °C	19.6 °C	1 mm	28 days	0 days
1985	28.3 °C	35.1 °C	20.3 °C	1 mm	28 days	0 days
1984	30.7 °C	38.1 °C	21.9 °C	0 mm	30 days	0 days
1983	26.9 °C	34.3 °C	17.9 °C	0 mm	22 days	0 days
1982	25.9 °C	32.9 °C	18.3 °C	24 mm	24 days	4 days
1981	27.1 °C	33.2 °C	19.9 °C	2 mm	27 days	1 day
1980	24.7 °C	31.5 °C	16.8 °C	1 mm	21 days	0 days
1979	25.2 °C	31.9 °C	17.7 °C	32 mm	21 days	4 days
1978	26.1 °C	33.7 °C	17.2 °C	0 mm	26 days	0 days
1977	24.0 °C	30.9 °C	16.1 °C	13 mm	17 days	2 days
1976	27.6 °C	34.6 °C	19.5 °C	2 mm	26 days	1 day
1975	25.3 °C	32.6 °C	16.0 °C	1 mm	26 days	0 days
1974	27.6 °C	35.0 °C	18.6 °C	0 mm	29 days	0 days
1973	27.2 °C	34.9 °C	17.9 °C	17 mm	27 days	2 days
1972	26.5 °C	33.8 °C	17.8 °C	0 mm	28 days	0 days
1971	24.2 °C	31.2 °C	15.8 °C	0 mm	20 days	0 days
1970	27.8 °C	35.1 °C	18.8 °C	0 mm	29 days	0 days
1969	27.5 °C	35.0 °C	18.7 °C	3 mm	27 days	1 day
1968	26.4 °C	33.8 °C	17.4 °C	1 mm	28 days	1 day
1967	25.7 °C	33.0 °C	16.7 °C	0 mm	21 days	0 days
1966	28.2 °C	35.9 °C	19.4 °C	1 mm	30 days	0 days
1965	24.5 °C	31.6 °C	15.7 °C	1 mm	17 days	0 days
1964	25.7 °C	33.1 °C	16.7 °C	0 mm	22 days	0 days
1963	28.3 °C	35.8 °C	19.1 °C	0 mm	30 days	0 days
1962	25.1 °C	32.5 °C	16.2 °C	0 mm	21 days	0 days
1961	26.1 °C	33.5 °C	16.8 °C	1 mm	25 days	0 days
1960	26.6 °C	33.9 °C	17.6 °C	1 mm	25 days	0 days
1959	25.9 °C	32.6 °C	18.0 °C	0 mm	25 days	0 days
1958	29.1 °C	36.2 °C	20.1 °C	1 mm	27 days	0 days
1957	24.4 °C	30.5 °C	16.3 °C	2 mm	17 days	0 days
1956	27.1 °C	34.4 °C	17.9 °C	0 mm	26 days	0 days
1955	25.3 °C	31.9 °C	16.8 °C	1 mm	22 days	0 days
1954	27.4 °C	34.3 °C	18.6 °C	0 mm	28 days	0 days
1953	23.2 °C	29.9 °C	14.6 °C	3 mm	16 days	1 day
1952	28.1 °C	35.3 °C	18.5 °C	0 mm	29 days	0 days
1951	26.5 °C	33.9 °C	17.5 °C	5 mm	24 days	1 day
1950	25.5 °C	33.1 °C	16.0 °C	0 mm	23 days	0 days
1949	25.9 °C	32.9 °C	17.4 °C	0 mm	24 days	0 days
1948	26.5 °C	33.7 °C	17.1 °C	0 mm	25 days	0 days
1947	27.5 °C	34.1 °C	19.7 °C	3 mm	26 days	1 day
1946	25.8 °C	32.1 °C	18.0 °C	0 mm	23 days	0 days
1945	26.1 °C	32.6 °C	17.8 °C	1 mm	26 days	1 day
1944	26.4 °C	33.0 °C	18.2 °C	0 mm	28 days	0 days
1943	27.8 °C	34.8 °C	19.2 °C	0 mm	29 days	0 days
1942	25.6 °C	32.6 °C	16.9 °C	0 mm	22 days	0 days
1941	26.2 °C	32.8 °C	18.1 °C	1 mm	25 days	1 day
1940	28.2 °C	34.5 °C	20.0 °C	0 mm	31 days	0 days

May records

Hottest day

45.2 °C

May 28, 1984 estimate

Nearby station: 45.0 °C on May 26, 1951 measured

Coldest night

6.3 °C

May 1, 1967 estimate

Nearby station: 4.4 °C on May 8, 1965 measured

Wettest day

33 mm

May 23, 2008 estimate

The weather on your birthday in Phoenix

Any day since 1940: high, low, rain, snow, and how warm it was compared with the same date in every other year.

Questions & answers

How warm is Phoenix in May?

Highs average 34.7 °C and lows 19.9 °C. A typical May brings 26 hot days (30 °C or more) and 0 frost days.

Does it rain a lot in Phoenix in May?

About 4 mm falls in May, over some 1 days with at least 1 mm. The wettest May was 2008 (43 mm), the driest 1940 (0 mm).

What was the warmest May in Phoenix?

1984, with a mean temperature of 30.7 °C. The coldest was 1953 (23.2 °C). The last one, 2025, ranks 25 of 86.