State rankings

Wettest States

Hawaii has the highest Mean Annual Precipitation (in) (63.7 in), followed by Louisiana (60.09 in) and Mississippi (59.23 in). Nevada has the lowest (9.54 in).

Environment50 states · 2 metricsUpdated Mar 23, 2025Original page
2 sources
50 of 51 states
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Mean Annual Precipitation (in)

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All 50 ranked

Highest first.

Distribution Median and middle halfThe median is the middle value: half of places are above it, half below. The middle half is the range holding the central 50% of places.More in the glossary →

Each dot is one state; the lines mark the median and the middle half.

Median
40.52 in
Middle half 22.93 in – 47.96 in
Average
36.59 in
50 states
Highest
63.7 in
Hawaii
Lowest
9.54 in
Nevada

Data

Click a column to sort, a row to highlight that place on the charts.

50 states · # = rank by Mean Annual Precipitation (in)
#
1Hawaii63.7 in1,618 mm
2Louisiana60.09 in1,526 mm
3Mississippi59.23 in1,504 mm
4Alabama58.28 in1,480 mm
5Florida54.57 in1,386 mm
6Tennessee54.22 in1,377 mm
7Arkansas50.78 in1,290 mm
8Georgia50.72 in1,288 mm
9North Carolina50.45 in1,281 mm
10Connecticut50.39 in1,280 mm
11South Carolina49.84 in1,266 mm
12Kentucky48.98 in1,244 mm
13Rhode Island47.98 in1,219 mm
14Massachusetts47.88 in1,216 mm
15New Jersey47.15 in1,198 mm
16Delaware45.68 in1,160 mm
17West Virginia45.3 in1,151 mm
18Maryland44.64 in1,134 mm
19Virginia44.39 in1,128 mm
20New Hampshire43.42 in1,103 mm
21Pennsylvania43.02 in1,093 mm
22Vermont42.82 in1,088 mm
23Maine42.28 in1,074 mm
24Missouri42.23 in1,073 mm
25Indiana41.72 in1,060 mm
26Illinois39.32 in999 mm
27Ohio39.16 in995 mm
28Washington38.78 in985 mm
29Oklahoma36.55 in928 mm
30Iowa34.05 in865 mm
31Michigan32.84 in834 mm
32Wisconsin32.64 in829 mm
33Kansas28.92 in735 mm
34Texas28.87 in733 mm
35Oregon27.55 in700 mm
36Minnesota27.44 in697 mm
37Nebraska23.63 in600 mm
38Alaska22.7 in577 mm
39California22.2 in564 mm
40South Dakota20.14 in512 mm
41Idaho18.96 in482 mm
42North Dakota17.82 in453 mm
43Colorado15.97 in406 mm
44Montana15.37 in390 mm
45New York14.63 in372 mm
46New Mexico14 in356 mm
47Arizona13.61 in346 mm
48Wyoming12.97 in329 mm
49Utah12.26 in311 mm
50Nevada9.54 in242 mm

What correlates with Mean Annual Precipitation (in)?

Pearson r against 2,112 other state metrics sharing at least 30 states. Correlation is not causation.

Higher together

Places that have a higher Mean Annual Precipitation (in) tend to score higher on these

  1. Avg Annual Precipitation 1971-2000Driest States in the US
    r = +0.97 · very strong · n = 50
    Plot
  2. Avg Annual Precipitation (mm) - 1971-2000Driest States in the US
    r = +0.97 · very strong · n = 50
    Plot
  3. Mean Annual Precipitation 1971-2000Best Weather by State
    r = +0.97 · very strong · n = 50
    Plot
  4. Yearly Precipitation (Inches)Climate by State (1991–2020 Averages)
    r = +0.95 · very strong · n = 50
    Plot
  5. Average Annual RainfallOff-Grid Living Legal States
    r = +0.94 · very strong · n = 50
    Plot
  6. Total PrecipitationAverage Temperatures by State
    r = +0.93 · very strong · n = 48
    Plot

Opposite directions

Places that have a higher Mean Annual Precipitation (in) tend to score lower on these

  1. Rainfall (1-10)Best States for Camping
    r = −0.96 · very strong · n = 49
    Plot
  2. # of Major Squirrel SpeciesSquirrel Population by State
    r = −0.76 · very strong · n = 49
    Plot
  3. Area OperatedFarm Count by State
    r = −0.71 · very strong · n = 50
    Plot
  4. Avg Farm SizeStates with the Most Farmland
    r = −0.71 · very strong · n = 50
    Plot
  5. # of StationsSnowiest States
    r = −0.71 · very strong · n = 49
    Plot
  6. Mean Wind Speed at 33 ftWindiest States in the U.S.
    r = −0.69 · strong · n = 50
    Plot

Quick answers

Which state has the highest Mean Annual Precipitation (in)?
Hawaii has the highest Mean Annual Precipitation (in), at 63.7 in, followed by Louisiana (60.09 in) and Mississippi (59.23 in).
Which state has the lowest Mean Annual Precipitation (in)?
Nevada has the lowest Mean Annual Precipitation (in), at 9.54 in.
What is the median Mean Annual Precipitation (in) across US states?
The median is 40.52 in across the 50 US states with data.
Where does this wettest states data come from?
Rankodex compiles it from World Population Review and the primary sources it cites: Wettest and Driest US States - Cool Weather; Average Annual Precipitation by State - Current Results.