As of Oct 13, 2026, the latest day this station has reported

How much rain has Iowa County, Iowa, had in 2026?

39.56 inches of rain have fallen so far in 2026 at the weather station 1 mile east of Williamsburg, Iowa County, through Oct 13. That is 7.85 inches more than a usual year to date (125% of usual).

Rain so far
39.56 in
Usual by Oct 13
31.71 in
Percent of usual
125%
2025 by Oct 13
29.26 in
Running total of rain in Iowa County, 2026, against a usual year0510152025303540JFMAMJJASOND2026Usual
Inches of rain added up day by day from Jan 1, solid line, against the usual year at this station (dashed), counted on the same days. Days with no report add nothing to either line.

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Prints of 2026 ship in January, once the full year is in.

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Month by month

Rain by month in Iowa County, Iowa, 2026
MonthRain, inUsual, inVs usual
Jan 3 days not reported0.851.04−0.19
Feb 3 days not reported0.111.32−1.21
Mar 2 days not reported1.662.05−0.39
Apr6.783.92+2.86
May2.684.85−2.17
Jun9.384.80+4.58
Jul3.494.32−0.83
Aug4.124.47−0.35
Sep 1 day not reported8.513.69+4.82
Oct to the 13th1.981.25+0.73
So far39.5631.71+7.85

2026 so far in Iowa County

The station, and what usual means

The numbers come from NOAA’s daily record for the station 1 mile east of Williamsburg (station ID 139067), 4 miles from the middle of Iowa County. It reported 277 of the 286 days from Jan 1 to Oct 13; the 9 days with no report count as unknown, not as dry. Rain here means everything the gauge caught: rain, and snow melted down to water. A trace counts as zero. It is read once a day, usually in the morning, and each reading is filed under the day it was read, so an evening storm can show up on the next day.

Usual means NOAA’s 1991 to 2020 daily normals for this station, added up over the same 277 days the station reported, so a missing day counts on neither side.

Why this station: 4 stations inside Iowa County reported at least 90% of the days in 2026. Mountain snow sites, and stations far above the rest in the county, come last, since their rain is not what the farms below get. Then the pick goes to one with NOAA normals, then the most days reported, then the one nearest the middle of the county. Your own rain gauge can read differently a few miles away.

Questions

How much rain has Iowa County, Iowa, had in 2026?

39.56 inches of rain have fallen so far in 2026 at the weather station 1 mile east of Williamsburg, Iowa County, through Oct 13. That is 7.85 inches more than a usual year to date (125% of usual).

Is Iowa County wetter or drier than usual in 2026?

Wetter so far. The weather station 1 mile east of Williamsburg had 39.56 inches from Jan 1 to Oct 13, 125% of the usual 31.71 inches for the same days.

What was the wettest month in Iowa County in 2026?

June, with 9.38 inches at the weather station 1 mile east of Williamsburg, counting Jan 1 through Oct 13.

What was the biggest rain in Iowa County in 2026?

2.46 inches on Sep 15, 2026, the most the gauge caught in one day this year through Oct 13.

How does 2026 compare with 2025 in Iowa County?

From Jan 1 to Oct 13, the weather station 1 mile east of Williamsburg had 29.26 inches in 2025 (2025 missed 9 days) and 39.56 inches in 2026 (2026 missed 9 days). On the 268 days both years reported, 2026 had 7.24 inches more than 2025.

Next door

Rain in Iowa, county by county · PRF insurance in Iowa County · Farmland Atlas: Iowa County