Rainfall totals St Louis, MO
Through Oct 7, 2026, St Louis has received 37.85 inches of rain for the year, according to the official daily climate report. The normal year-to-date total is 33.27 inches. The normal figure is what the city would typically have seen by this point in the calendar. This reading comes from the station gauge at ST. LOUIS in the National Weather Service's daily climate report.
as of
Data from St Louis Lambert International Airport, with records back to 1938. Across the record from 1938, 99 percent of days have a reading, with 100 percent in 2025.
Most recent rainfall
0.21 inches of rain fell on Oct 1, 2026, the latest measurable rainfall this year.
ST. LOUIS saw no measurable rain on Oct 7, 2026, according to the National Weather Service daily climate report.
Official rainfall report for Oct 7, 2026
| Measured | Normal | vs normal | |
|---|---|---|---|
| Rain on Oct 7, 2026 | 0.00 inches | 0.09 inches | -0.09 inches |
| Last 48 hours | 0.00 inches | ||
| Last 72 hours | 0.00 inches | ||
| Last 7 days | 0.21 inches | ||
| Month to date | 0.21 inches | 0.64 inches | -0.43 inches (-67%) |
| Year to date | 37.85 inches | 33.27 inches | +4.58 inches (+14%) |
| Record for Oct 7 | 1.74 inches | 1990 |
Source: National Weather Service daily climate report for ST. LOUIS, issued the morning after Oct 7, 2026. The local National Weather Service office issues the daily climate report for the airport station the next morning, and that report is the official figure.
How much rain did St Louis get?
Days with measurable rain, 2026
| Date | Rainfall |
|---|---|
| Oct 1, 2026 | 0.21 inches |
| Sep 27, 2026 | 0.01 inches |
| Sep 26, 2026 | 0.06 inches |
| Sep 21, 2026 | 0.33 inches |
| Sep 20, 2026 | 0.73 inches |
| Sep 10, 2026 | 0.15 inches |
| Sep 9, 2026 | 0.10 inches |
| Aug 24, 2026 | 0.02 inches |
| Aug 19, 2026 | 0.15 inches |
| Aug 16, 2026 | 1.32 inches |
| Aug 14, 2026 | 0.35 inches |
| Aug 12, 2026 | 0.01 inches |
| Aug 7, 2026 | 0.01 inches |
| Aug 6, 2026 | 1.57 inches |
| Aug 5, 2026 | 0.01 inches |
| Aug 1, 2026 | 0.20 inches |
| Jul 31, 2026 | 1.52 inches |
| Jul 27, 2026 | 0.03 inches |
| Jul 25, 2026 | 0.88 inches |
| Jul 24, 2026 | 0.04 inches |
| Jul 19, 2026 | 0.32 inches |
| Jul 18, 2026 | 0.02 inches |
| Jul 16, 2026 | 0.07 inches |
| Jul 11, 2026 | 1.20 inches |
| Jul 10, 2026 | 1.65 inches |
| Jul 9, 2026 | 0.01 inches |
| Jul 5, 2026 | 0.03 inches |
| Jul 4, 2026 | 1.70 inches |
| Jun 27, 2026 | 0.77 inches |
| Jun 26, 2026 | 0.30 inches |
With 2.51 inches on May 18, 2026, this is the 67th wettest of the 9,805 measurable rain days in the St Louis Lambert International Airport record, which begins in 1938. That is the most rain recorded at this station on May 18 since 1938.
Through Oct 3, 2026, the GHCN-Daily station record shows 37.84 inches of measurable rain so far this year, falling over a 81-day span. Station observations are from GHCN-Daily, with a 1-3 day lag and quality checks by NOAA.
St Louis rainfall by month, 2026
| Month | Rainfall | Normal | vs normal |
|---|---|---|---|
| January | 1.02 inches | 2.59 inches | -1.57 inches (-61%) |
| February | 1.39 inches | 2.23 inches | -0.84 inches (-38%) |
| March | 5.16 inches | 3.50 inches | +1.66 inches (+47%) |
| April | 6.88 inches | 4.73 inches | +2.15 inches (+45%) |
| May | 4.21 inches | 4.82 inches | -0.61 inches (-13%) |
| June | 6.48 inches | 4.49 inches | +1.99 inches (+44%) |
| July | 7.47 inches | 3.93 inches | +3.54 inches (+90%) |
| August | 3.64 inches | 3.38 inches | +0.26 inches (+8%) |
| September | 1.38 inches | 2.96 inches | -1.58 inches (-53%) |
| October | 0.21 inches | 3.15 inches |
October is still in progress; figures run through Oct 3, 2026. Averages are 1991-2020 normals from NCEI.
Rainfall days at each threshold in St Louis
| Year | 0.5+ in. | 1+ in. | 2+ in. | 3+ in. |
|---|---|---|---|---|
| 2025 | 25 | 14 | 2 | 1 |
| 2024 | 27 | 16 | 4 | 2 |
| 2023 | 22 | 8 | 0 | 0 |
| 2022 | 20 | 9 | 3 | 2 |
| 2021 | 30 | 14 | 3 | 0 |
| 2020 | 35 | 13 | 3 | 0 |
| 2019 | 37 | 15 | 3 | 1 |
| 2018 | 32 | 11 | 0 | 0 |
| 2017 | 22 | 10 | 2 | 1 |
| 2016 | 25 | 13 | 3 | 0 |
| Average | 25.2 | 9.8 | 1.8 | 0.4 |
A day counts when its rainfall total meets or passes the column amount, from St Louis Lambert International Airport records in GHCN-Daily. Every complete year starting with 1938 counts toward the average, 83 years in total.
Past rainfall years in St Louis
All-time rainfall records
| Wettest day | 8.64 inches | Jul 26, 2022 |
|---|---|---|
| Wettest year | 61.24 inches | 2015 |
| Driest year | 20.59 inches | 1953 |
| Average year | 38.90 inches | 83 complete years on record |
| Rain days a year | 111 | average, 0.01 inch or more |
| Record begins | 1938 | 32,031 daily readings |
Monthly rainfall normals
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inches | 2.59 | 2.23 | 3.50 | 4.73 | 4.82 | 4.49 | 3.93 | 3.38 | 2.96 | 3.15 | 3.42 | 2.50 | 41.70 |
Averages are 1991-2020 normals from NCEI.
The daily climate report is issued by the local National Weather Service forecast office and delivered to this page by the Iowa Environmental Mesonet of Iowa State University. Under 17 U.S.C. 105, no copyright attaches to the government-produced figures on this page, including reports, alerts, station observations, and normals, which were created by the National Weather Service and other NOAA offices. The notice that 17 U.S.C. 403 requires appears in this sentence. It does not imply endorsement by or affiliation with those agencies. See: Data sources and attribution.