current run under 0.01" · longest ever 55 days (to Aug 11, 2017)
Wet Streak
0days
consecutive days with rain · longest ever 33 days
Year to Date vs Normal
95%
19.57" of a normal 20.52" · wettest 31.18" (1972) · driest 11.29" (1985)
Wettest & Driest Years
The extremes of a 81-year record (1945–2025) — full calendar-year totals. The long-run average is 38.66" a year.
Wettest Years on Record
1
1950
55.14in
2
1996
50.67in
3
1968
50.15in
4
1953
49.42in
5
2014
48.5in
Driest Years on Record
1
1952
23.78in
2
1985
25.13in
3
1976
26.7in
4
2000
28.66in
5
1993
28.8in
Rainfall by Month
The seasonal rhythm — each month's normal precipitation, with this year's totals in blue. Where the blue bar clears the band, the month ran wetter than usual.
J
F
M
A
M
J
J
A
S
O
N
D
Normal (median)This year
Normally wettest in Dec (~5.89") and driest in Jul (~0.59"). Wettest calendar month ever: Nov 2006, 15.63".
This Day in History · Rainfall
Every year's rainfall on each of the next 7 dates at Seattle Tacoma — toggle a day below. The tallest bar (ringed) is the wettest on record for that date.
Wettest Aug 24 ever
1.00in
set in 2004
Rain on Aug 24
22%
of 81 years had measurable rain
Wettest Aug 25 ever
0.59in
set in 1968
Rain on Aug 25
28%
of 81 years had measurable rain
Wettest Aug 26 ever
0.67in
set in 1977
Rain on Aug 26
27%
of 81 years had measurable rain
Wettest Aug 27 ever
0.76in
set in 1951
Rain on Aug 27
23%
of 81 years had measurable rain
Wettest Aug 28 ever
0.47in
set in 1975
Rain on Aug 28
25%
of 81 years had measurable rain
Wettest Aug 29 ever
1.28in
set in 2015
Rain on Aug 29
32%
of 81 years had measurable rain
Wettest Aug 30 ever
0.40in
set in 2015
Rain on Aug 30
27%
of 81 years had measurable rain
This Year's Rainfall
Seattle Tacoma's cumulative rainfall so far this year against its own record — the normal accumulation, and the wettest & driest years to date. The bright line is the running total; where it rides the band tells the story at a glance.
Seattle Tacoma's entire daily record as one heatmap — each row a year, each cell a day, shaded by that day's rainfall. Dry spells read as dark blocks, wet seasons as brighter bands; the whole climate at a glance.
Every week of the U.S. Drought Monitor for Seattle Tacoma's county since 2000, coloured by intensity — dry spells and multi-year droughts read as warm bands.
