As of Oct 13, 2026, the latest day this station has reported
How much rain has Black Hawk County, Iowa, had in 2026?
40.81 inches of rain have fallen so far in 2026 at the weather station at Waterloo Municipal Airport, Black Hawk County, through Oct 13. That is 9.30 inches more than a usual year to date (130% of usual).
- Rain so far
- 40.81 in
- Usual by Oct 13
- 31.51 in
- Percent of usual
- 130%
- 2025 by Oct 13
- 31.87 in
This is Black Hawk County’s 2026 so far, drawn as a Rain Print. Put your name and dates on it: framed $89, print $45.Get Black Hawk County’s 2026 rain and snow drawn as a Rain Print, with your name and dates: framed $89, print $45. Make yours
Prints of 2026 ship in January, once the full year is in.
Want another year, like the drought or the year you married? Rainfall art of any town and year.
Month by month
| Month | Rain, in | Usual, in | Vs usual |
|---|---|---|---|
| Jan | 1.61 | 1.10 | +0.51 |
| Feb | 0.79 | 1.14 | −0.35 |
| Mar | 2.20 | 1.98 | +0.22 |
| Apr | 5.80 | 4.04 | +1.76 |
| May | 2.76 | 4.61 | −1.85 |
| Jun | 5.91 | 5.72 | +0.19 |
| Jul | 7.11 | 4.34 | +2.77 |
| Aug | 3.60 | 4.17 | −0.57 |
| Sep | 8.06 | 3.14 | +4.92 |
| Oct to the 13th | 2.97 | 1.27 | +1.70 |
| So far | 40.81 | 31.51 | +9.30 |
2026 so far in Black Hawk County
- Wettest month: September, 8.06 inches.
- Biggest single day: 2.91 inches on Oct 1.
- Longest dry stretch: 14 days in a row with the gauge at zero, Feb 4 to Feb 17.
- 2025 by the same date: 31.87 inches at the same station. 2026 had 8.94 inches more than 2025.
The station, and what usual means
The numbers come from NOAA’s daily record for the station at Waterloo Municipal Airport (station ID 94910), 7 miles from the middle of Black Hawk County. It reported every one of the 286 days from Jan 1 to Oct 13. Rain here means everything the gauge caught: rain, and snow melted down to water. A trace counts as zero.
Usual means NOAA’s 1991 to 2020 daily normals for this station, added up over the same 286 days the station reported, so a missing day counts on neither side.
Why this station: 6 stations inside Black Hawk 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 Black Hawk County, Iowa, had in 2026?
40.81 inches of rain have fallen so far in 2026 at the weather station at Waterloo Municipal Airport, Black Hawk County, through Oct 13. That is 9.30 inches more than a usual year to date (130% of usual).
Is Black Hawk County wetter or drier than usual in 2026?
Wetter so far. The weather station at Waterloo Municipal Airport had 40.81 inches from Jan 1 to Oct 13, 130% of the usual 31.51 inches for the same days.
What was the wettest month in Black Hawk County in 2026?
September, with 8.06 inches at the weather station at Waterloo Municipal Airport, counting Jan 1 through Oct 13.
What was the biggest rain in Black Hawk County in 2026?
2.91 inches on Oct 1, 2026, the most the gauge caught in one day this year through Oct 13.
How does 2026 compare with 2025 in Black Hawk County?
From Jan 1 to Oct 13, the weather station at Waterloo Municipal Airport had 31.87 inches in 2025 and 40.81 inches in 2026. 2026 had 8.94 inches more than 2025.
Next door
- Benton County 45.52 in, 140%
- Buchanan County 40.81 in, 124%
- Butler County 46.15 in, 163% to Oct 9
- Grundy County 43.46 in, 140%
Rain in Iowa, county by county · PRF insurance in Black Hawk County · Farmland Atlas: Black Hawk County