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DRIESTSINCE
Pennsylvania · precipitation record 1912–2026

Allentown, PA

2026
NEAR NORMAL PRECIPITATION
24.99in
year to date · normal 29.05"
📖 Allentown's full Precipitation Almanac →
rain ahead · next 3 days
0.8" of rain forecast
the 3-day record here is 9.69"
0.8in

Accumulation

TODAY
0.0in
no rain yet of 110 yrs
MONTH TO DATE
4.22in
36th wettest of 111 yrs
129% of normal
LAST 90 DAYS
10.34in
32nd driest of 112 yrs
80% of normal
YEAR TO DATE
24.99in
23rd driest of 113 yrs
86% of normal

Extremes & Streaks

Biggest Day on Record

8.71in
on Oct 8, 2005 · in 115 years

Dry Streak

0days
current run under 0.01" · longest ever 42 days (to Nov 12, 1924)

Wet Streak

1days
consecutive days with rain · longest ever 10 days

Year to Date vs Normal

86%
24.99" of a normal 29.05" · wettest 46.22" (2019) · driest 18.91" (1941)

Wettest & Driest Years

The extremes of a 108-year record (1912–2025) — full calendar-year totals. The long-run average is 44.81" a year.

Wettest Years on Record

1201171.72in
2195267.69in
3201866.96in
4201960.66in
5200356.93in

Driest Years on Record

1193029.67in
2198029.82in
3196530.55in
4192233.17in
5191833.58in

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 Jul (~4.57") and driest in Feb (~2.58"). Wettest calendar month ever: Aug 2011, 13.47".

This Day in History · Rainfall

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

Wettest Aug 24 ever

4.77in
set in 1933

Rain on Aug 24

30%
of 110 years had measurable rain
1912: 0.00″1913: 0.00″1914: 0.00″1916: 0.03″1917: 0.79″1918: 0.00″1919: 0.01″1922: 0.00″1923: 0.00″1924: 0.00″1925: 0.00″1926: 0.03″1927: 0.00″1928: 0.03″1929: 0.20″1930: 0.09″1931: 0.24″1932: 0.00″1933: 4.77″1934: 0.00″1935: 0.00″1936: 1.10″1937: 0.58″1938: 0.00″1939: 0.00″1941: 0.00″1942: 0.29″1943: 0.00″1944: 0.00″1945: 1.91″1946: 0.00″1947: 0.00″1948: 0.00″1949: 0.05″1950: 0.00″1951: 0.14″1952: 0.00″1953: 0.00″1954: 0.00″1955: 0.00″1956: 0.00″1957: 0.00″1958: 0.60″1959: 0.35″1960: 0.00″1961: 0.00″1962: 0.00″1963: 0.01″1964: 0.00″1965: 0.00″1966: 0.00″1967: 0.36″1968: 0.46″1969: 0.00″1970: 0.00″1971: 0.00″1972: 1.52″1973: 0.00″1974: 0.00″1975: 0.32″1976: 0.00″1977: 0.14″1978: 0.00″1979: 0.07″1980: 0.00″1981: 0.00″1982: 0.00″1983: 0.00″1984: 0.00″1985: 0.33″1986: 0.00″1987: 0.00″1988: 0.97″1989: 0.00″1990: 0.07″1991: 0.00″1992: 0.00″1993: 0.00″1994: 0.00″1995: 0.00″1996: 0.02″1997: 0.00″1998: 0.00″1999: 0.00″2000: 0.11″2001: 0.00″2002: 0.73″2003: 0.00″2004: 0.00″2005: 0.00″2006: 0.07″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: 0.23″2021: 0.00″2022: 0.00″2023: 0.14″2024: 0.00″2025: 0.00″0″1″2″3″4″5″193019501960197019801990200020102020

This Year's Rainfall

Allentown'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.
Allentown, PA — cumulative rainfall this year vs the record
Download year chart

Rainfall Calendar

Allentown'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.
Allentown, PA — daily rainfall every day on record
Download calendar

Drought History

Every week of the U.S. Drought Monitor for Allentown's county since 2000, coloured by intensity — dry spells and multi-year droughts read as warm bands.
Allentown, PA — county drought history since 2000
Download drought history

Sun & Location

Sun & Daylight Today

Sunrise5:21 AM
Sunset6:47 PM
Solar noon12:04 PM
Daylight13h 26m
Local standard time (no DST), level horizon.

Location

40.65°N, 75.45°W

Nearby Stations

Reading, PA32 mi SWMount Pocono, PA33 mi NTrenton, NJ42 mi SEAvoca, PA49 mi NPhiladelphia, PA54 mi SNewark, NJ67 mi E

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