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Wettest Since
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WETTESTSINCE
Idaho · precipitation record 1881–2026

Lewiston, ID

IN 90 DAYS · 2026
DRIEST IN 90 DAYS SINCE 2025
0.9in
12th driest of 135 years · normal 2.46"
📖 Lewiston's full Precipitation Almanac →

Accumulation

TODAY
0.0in
no rain yet of 133 yrs
MONTH TO DATE
0.09in
53rd driest of 135 yrs
47% of normal
LAST 90 DAYS
0.9in
12th driest of 135 yrs
37% of normal
YEAR TO DATE
9.09in
48th wettest of 137 yrs
112% of normal

Extremes & Streaks

Biggest Day on Record

2.71in
on Dec 13, 1882 · in 146 years

Dry Streak

1days
current run under 0.01" · longest ever 92 days (to Sep 4, 1883)

Wet Streak

0days
consecutive days with rain · longest ever 15 days

Year to Date vs Normal

112%
9.09" of a normal 8.15" · wettest 15.48" (1884) · driest 3.51" (2021)

Wettest & Driest Years

The extremes of a 132-year record (1882–2025) — full calendar-year totals. The long-run average is 13.04" a year.

Wettest Years on Record

1188421.76in
2194021.31in
3188519.31in
4194119.06in
5192618.79in

Driest Years on Record

120077.73in
219358.36in
319748.52in
420218.62in
520088.75in

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 May (~1.34") and driest in Jul (~0.31"). Wettest calendar month ever: Jun 1884, 5.67".

This Day in History · Rainfall

Every year's rainfall on each of the next 7 dates at Lewiston — toggle a day below. The tallest bar (ringed) is the wettest on record for that date.

Wettest Aug 24 ever

1.28in
set in 1907

Rain on Aug 24

15%
of 133 years had measurable rain
1882: 0.00″1883: 0.00″1884: 0.00″1885: 0.10″1894: 0.00″1895: 0.00″1896: 0.00″1898: 0.00″1899: 0.00″1901: 0.00″1902: 0.00″1903: 0.00″1904: 0.00″1905: 0.00″1906: 0.03″1907: 1.28″1908: 0.00″1909: 0.00″1910: 0.00″1911: 0.00″1912: 0.00″1913: 0.00″1914: 0.00″1915: 0.00″1916: 0.00″1917: 0.00″1918: 0.00″1919: 0.00″1920: 0.00″1921: 0.00″1922: 0.00″1923: 0.00″1924: 0.00″1925: 0.00″1926: 0.00″1927: 0.00″1928: 0.00″1929: 0.00″1930: 0.00″1931: 0.00″1932: 0.00″1934: 0.00″1935: 0.00″1936: 0.00″1937: 0.00″1938: 0.00″1939: 0.00″1940: 0.00″1941: 0.07″1942: 0.00″1943: 0.00″1944: 0.00″1945: 0.00″1946: 0.04″1947: 0.00″1948: 0.01″1949: 0.00″1950: 0.08″1951: 0.00″1952: 0.00″1953: 0.64″1954: 0.40″1955: 0.00″1956: 0.00″1957: 0.00″1958: 0.00″1959: 0.00″1960: 0.20″1961: 0.00″1962: 0.00″1963: 0.00″1964: 0.00″1965: 0.01″1966: 0.00″1967: 0.00″1968: 0.02″1969: 0.00″1970: 0.00″1971: 0.00″1972: 0.00″1973: 0.02″1974: 0.00″1975: 0.00″1976: 0.00″1977: 0.37″1978: 0.00″1979: 0.00″1980: 0.00″1981: 0.00″1982: 0.00″1983: 0.00″1984: 0.00″1985: 0.00″1986: 0.00″1987: 0.26″1988: 0.00″1989: 0.66″1990: 0.00″1991: 0.00″1992: 0.00″1993: 0.00″1994: 0.00″1995: 0.00″1996: 0.00″1997: 0.47″1998: 0.00″1999: 0.00″2000: 0.05″2001: 0.00″2002: 0.00″2003: 0.00″2004: 0.24″2005: 0.00″2006: 0.00″2007: 0.00″2008: 0.00″2009: 0.00″2010: 0.00″2011: 0.00″2012: 0.00″2013: 0.00″2014: 0.00″2015: 0.00″2016: 0.00″2017: 0.00″2018: 0.00″2019: 0.00″2020: 0.00″2021: 0.00″2022: 0.01″2023: 0.00″2024: 0.00″2025: 0.00″0″1″2″191019201930194019501960197019801990200020102020

This Year's Rainfall

Lewiston'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.
Lewiston, ID — cumulative rainfall this year vs the record
Download year chart

Rainfall Calendar

Lewiston'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.
Lewiston, ID — daily rainfall every day on record
Download calendar

Sun & Location

Sun & Daylight Today

Sunrise4:59 AM
Sunset6:40 PM
Solar noon11:50 AM
Daylight13h 41m
Local standard time (no DST), level horizon.

Location

46.38°N, 117.02°W

Nearby Stations

Pullman, WA25 mi NSpokane, WA89 mi NPendleton, OR99 mi WTri-Cities, WA100 mi WMcCall, ID111 mi SEBaker City, OR112 mi SW

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