current run under 0.01" · longest ever 268 days (to Feb 8, 1963)
Wet Streak
0days
consecutive days with rain · longest ever 11 days
Year to Date vs Normal
101%
2.87" of a normal 2.83" · wettest 15.46" (1993) · driest 0.4" (1984)
Wettest & Driest Years
The extremes of a 78-year record (1945–2025) — full calendar-year totals. The long-run average is 6.31" a year.
Wettest Years on Record
1
1983
17.37in
2
1993
16.85in
3
2005
14.69in
4
1992
14.44in
5
2010
12.99in
Driest Years on Record
1
1953
1.26in
2
1956
1.71in
3
1990
1.85in
4
2012
1.86in
5
2007
1.91in
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 Jan (~0.79") and driest in Jun (~0.0"). Wettest calendar month ever: Jan 1993, 7.46".
This Day in History · Rainfall
Every year's rainfall on each of the next 7 dates at Lancaster — toggle a day below. The tallest bar (ringed) is the wettest on record for that date.
Wettest Jul 28 ever
0.05in
set in 1968
Rain on Jul 28
2%
of 80 years had measurable rain
Wettest Jul 29 ever
0.58in
set in 1968
Rain on Jul 29
1%
of 80 years had measurable rain
Wettest Jul 30 ever
0.38in
set in 1984
Rain on Jul 30
4%
of 80 years had measurable rain
Wettest Jul 31 ever
0.00in
no rain on record
Rain on Jul 31
0%
of 80 years had measurable rain
Wettest Aug 1 ever
0.03in
set in 2017
Rain on Aug 1
1%
of 80 years had measurable rain
Wettest Aug 2 ever
0.03in
set in 1971
Rain on Aug 2
2%
of 80 years had measurable rain
Wettest Aug 3 ever
0.02in
set in 2012
Rain on Aug 3
2%
of 80 years had measurable rain
This Year's Rainfall
Lancaster'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.
Lancaster'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 Lancaster's county since 2000, coloured by intensity — dry spells and multi-year droughts read as warm bands.
