current run under 0.01" · longest ever 59 days (to Jun 19, 1989)
Wet Streak
0days
consecutive days with rain · longest ever 21 days
Year to Date vs Normal
76%
15.76" of a normal 20.77" · wettest 50.46" (1983) · driest 6.71" (1956)
Wettest & Driest Years
The extremes of a 61-year record (1951–2025) — full calendar-year totals. The long-run average is 39.54" a year.
Wettest Years on Record
1
1959
70.09in
2
2020
64.55in
3
1958
63.7in
4
1983
63.23in
5
1953
57.16in
Driest Years on Record
1
1951
20.99in
2
1989
21.16in
3
1961
22.21in
4
2004
23.19in
5
1955
23.55in
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 Sep (~5.42") and driest in Mar (~1.16"). Wettest calendar month ever: Oct 2011, 20.34".
This Day in History · Rainfall
Every year's rainfall on each of the next 7 dates at Marathon — toggle a day below. The tallest bar (ringed) is the wettest on record for that date.
Wettest Aug 24 ever
8.33in
set in 1995
Rain on Aug 24
43%
of 68 years had measurable rain
Wettest Aug 25 ever
3.07in
set in 1960
Rain on Aug 25
56%
of 68 years had measurable rain
Wettest Aug 26 ever
7.15in
set in 2005
Rain on Aug 26
55%
of 67 years had measurable rain
Wettest Aug 27 ever
2.85in
set in 2000
Rain on Aug 27
35%
of 68 years had measurable rain
Wettest Aug 28 ever
1.53in
set in 2003
Rain on Aug 28
51%
of 68 years had measurable rain
Wettest Aug 29 ever
2.24in
set in 2006
Rain on Aug 29
47%
of 68 years had measurable rain
Wettest Aug 30 ever
2.57in
set in 1960
Rain on Aug 30
57%
of 68 years had measurable rain
This Year's Rainfall
Marathon'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.
Marathon'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 Marathon's county since 2000, coloured by intensity — dry spells and multi-year droughts read as warm bands.
