Climate Information for Places With Some of the Best May Weather in the USA

This page pulls together detailed temperature and rainfall information for the list that describes 30 places in the United States with fabulous May weather.

Here you can easily compare May maximum and minimum temperatures in degrees Fahrenheit and Celsius. Plus there's information on how many days normally have highs in the 60s, 70s and 80s °F.

The final table gives the average amount of rain each place receives this month, measured in inches and millimetres. There are also totals for the number of days with wet weather.

All the numbers are long-term averages based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.

Temperature

Average May temperatures

High °F	Low °F	Place	High °C	Low °C
81	71	Dauphin Island, AL	27	22
71	38	Pinetop – Lakeside, AZ	22	3
78	54	Mammoth Spring, AR	26	12
70	49	Berkeley, CA	21	10
71	49	Santa Cruz, CA	22	9
71	37	Durango, CO	22	3
78	56	Gainesville, GA	26	13
85	71	Waikiki, HI	29	22
72	48	Boise, ID	22	9
74	53	Windsor, IL	23	12
72	50	Decatur, IN	22	10
72	52	Des Moines, IA	22	11
76	55	John Redmond Lake, KS	24	13
79	57	Land Between the Lakes, KY	26	14
82	70	Boothville, LA	28	21
77	55	Frederick, MD	25	13
70	53	Ocean City, MD	21	12
81	62	Pascagoula, MS	27	17
74	54	Potosi, MO	23	12
69	47	Lake McConaughy, NE	21	8
73	40	Ruidoso, NM	23	5
65	47	Bridgehampton, NY	18	9
76	54	Asheville, NC	25	12
75	63	Ocracoke Island, NC	24	17
68	42	Bismarck, ND	20	6
74	52	Columbus, OH	23	11
74	45	Hermiston, OR	23	7
78	54	Kingsport, TN	26	12
84	72	Galveston, TX	29	22
76	53	Lynchburg, VA	24	11

This next table lists the number of days in May that typically have highs in the 60s, 70s or 80s Fahrenheit. Highs of 60 to 69 °F equal 15.6 to 21.0 °C. Highs of 70 to 79 °F equal 21.1 to 26.6 °C. Highs of 80 to 89 °F equal 26.7 to 32.1 °C. Any days not included in these categories have highs of less than 60 °F.

Average number of days in May with a maximum temperature in the 60s, 70s or 80s °F

Place	60s	70s	80s
Dauphin Island, AL	31	31	21
Pinetop – Lakeside, AZ	28	21	5
Mammoth Spring, AR	30	26	15
Berkeley, CA	30	14	3
Santa Cruz, CA	30	16	3
Durango, CO	29	21	5
Gainesville, GA	31	27	16
Waikiki, HI	31	31	30
Boise, ID	28	18	8
Windsor, IL	29	23	11
Decatur, IN	27	19	9
Des Moines, IA	28	20	8
John Redmond Lake, KS	29	23	11
Land Between the Lakes, KY	30	25	16
Boothville, LA	31	31	24
Frederick, MD	30	25	12
Ocean City, MD	28	17	6
Pascagoula, MS	31	31	22
Potosi, MO	29	22	10
Lake McConaughy, NE	25	18	8
Ruidoso, NM	30	25	8
Bridgehampton, NY	25	10	2
Asheville, NC	30	24	12
Ocracoke Island, NC	31	26	8
Bismarck, ND	24	15	5
Columbus, OH	29	21	10
Hermiston, OR	30	21	9
Kingsport, TN	30	26	16
Galveston, TX	31	31	26
Lynchburg, VA	30	24	12

Rain

Listed here are averages for the month's total rainfall. Most sites also have the number of days with rainy weather. That includes the days when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

May averages for total rainfall

Days	Place	Inches	Milli­metres
7	Dauphin Island, AL	5.0	127
4	Pinetop – Lakeside, AZ	0.8	20
10	Mammoth Spring, AR	5.3	135
3	Berkeley, CA	0.8	20
4	Santa Cruz, CA	0.9	22
7	Durango, CO	1.2	30
9	Gainesville, GA	4.2	107
8	Waikiki, HI	1.0	26
8	Boise, ID	1.5	37
13	Windsor, IL	4.6	116
13	Decatur, IN	4.8	121
13	Des Moines, IA	5.2	133
9	John Redmond Lake, KS	5.3	135
13	Land Between the Lakes, KY	5.5	139
6	Boothville, LA	3.6	92
10	Frederick, MD	4.0	101
12	Ocean City, MD	3.8	96
7	Pascagoula, MS	5.9	150
13	Potosi, MO	5.3	134
11	Lake McConaughy, NE	3.4	85
5	Ruidoso, NM	1.2	29
10	Bridgehampton, NY	3.6	91
12	Asheville, NC	3.5	88
8	Ocracoke Island, NC	3.8	97
10	Bismarck, ND	2.5	64
14	Columbus, OH	4.0	101
8	Hermiston, OR	0.9	22
12	Kingsport, TN	3.8	96
5	Galveston, TX	3.0	77
12	Lynchburg, VA	4.0	101