May Precipitation & Averages

Heavy Rain Across the Southern US; Unsettled Pattern in the Pacific Northwest

A storm system will bring heavy rainfall, thunderstorms, and flooding threats to portions of the Southern Plains Friday, the Lower Mississippi Valley Saturday, and the Southeast into the Mid-Atlantic on Sunday. High elevation snow and mixed precipitation and rain in the lower elevations will impact the Pacific Northwest this weekend before a stronger system moves in early next week. Read More >

May Normal Daily Precipitation (1991-2020)
Daily Precipitation records (1930-2024)
Day	Normal Precipitation	Record Precipitation	Record Year
1	.03	0.41	1959
2	.03	1.55	1941
3	.03	1.45	1941
4	.03	1.29	1969
5	.03	1.00	1982
6	.04	1.02	1969
7	.03	1.35	1959
8	.04	0.60	1932
9	.04	4.75	1968
10	.04	2.45	2012
11	.05	1.36	1958
12	.06	1.20	1958
13	.05	1.84	2019
14	.05	1.40	2010
15	.06	0.81	1980
16	.05	2.11	1984
17	.06	1.12	1957
18	.05	0.57	1952
19	.06	1.66	1961
20	.06	1.68	2019
21	.06	0.55	1993
22	.06	0.98	1963
23	.06	2.72	1992
24	.06	1.86	2003
25	.06	2.02	1992
26	.06	2.97	1941
27	.07	1.10	1982
28	.05	2.08	1964
29	.07	2.01	1971
30	.06	1.60	2024
31	.07	1.81	2021
MONTH	1.57

May Normal Daily Precipitation (1991-2020)
Daily Precipitation records (1930-2024)

Day

Normal Precipitation

Record Precipitation

Record
Year

.03

0.41

1959

.03

1.55

1941

.03

1.45

1941

.03

1.29

1969

.03

1.00

1982

.04

1.02

1969

.03

1.35

1959

.04

0.60

1932

.04

4.75

1968

.04

2.45

2012

.05

1.36

1958

.06

1.20

1958

.05

1.84

2019

.05

1.40

2010

.06

0.81

1980

.05

2.11

1984

.06

1.12

1957

.05

0.57

1952

.06

1.66

1961

.06

1.68

2019

.06

0.55

1993

.06

0.98

1963

.06

2.72

1992

.06

1.86

2003

.06

2.02

1992

.06

2.97

1941

.07

1.10

1982

.05

2.08

1964

.07

2.01

1971

.06

1.60

2024

.07

1.81

2021

MONTH

1.57