# Rainfall Totals in Chelmsford, MA 01824

As of 2026-11-06T02:10:12.787Z, **Chelmsford, MA 01824** received **0.03" of rain** in the last 24 hours, **0.03"** over the past 7 days, and **32.34"** in 2026 year-to-date (30-year normal to date: 38.93", 16.9% below average). The most recent rain event ended 19 days ago (2026-10-17T06:00:00+0000), dropping 0.09" of rain.

> **Note on local variation:** These totals are measured at the center of Chelmsford, MA 01824 (42.5880, -71.3498). Because thunderstorms often vary by 1"+ across a few miles, [pin your exact address, yard, or field in the free Precip app](https://app.precip.ai/locations/coords?lng=-71.349825&lat=42.587960499999994&locationName=Chelmsford%2C+MA+01824&save=true&src=md_rain_report) for exact point totals, or [check the next-hour rain nowcast and 10-day forecast for Chelmsford, MA 01824](https://app.precip.ai/home?lng=-71.349825&lat=42.587960499999994&locationName=Chelmsford%2C+MA+01824&src=md_rain_forecast).

| Period | Rainfall | 30-Year Normal | vs. Normal |
| --- | --- | --- | --- |
| Last 24 hours | 0.03" | — | — |
| Full day (Thu, Nov 5) | 0.03" | — | — |
| Past 7 days | 0.03" | — | — |
| November 2026 (to date) | 0.03" | 0.63" | −0.60" (−95%) |
| 2026 year to date | 32.34" | 38.93" | −6.59" (16.9% below average) |
| Most recent rain (19 days ago) | 0.09" | — | — |

## Daily Rainfall — Past 7 Days

Each precipitation day runs 24 hours from 12:00 UTC to 12:00 UTC.

| Date | ISO Date | Rainfall |
| --- | --- | --- | --- |
| Thursday, Nov 5 | 2026-11-05 | 0.03" |
| Wednesday, Nov 4 | 2026-11-04 | 0.00" |
| Tuesday, Nov 3 | 2026-11-03 | 0.00" |
| Monday, Nov 2 | 2026-11-02 | 0.00" |
| Sunday, Nov 1 | 2026-11-01 | 0.00" |
| Saturday, Oct 31 | 2026-10-31 | 0.00" |
| Friday, Oct 30 | 2026-10-30 | 0.00" |

## Monthly Rainfall — 2026 vs. 30-Year Normal

| Month | Observed | Normal to Date | vs. Normal | Full Month Normal |
| --- | --- | --- | --- | --- |
| January 2026 | 3.23" | 3.29" | −0.06" (−2%) | 3.29" |
| February 2026 | 2.40" | 3.12" | −0.72" (−23%) | 3.12" |
| March 2026 | 3.74" | 4.27" | −0.53" (−12%) | 4.27" |
| April 2026 | 2.12" | 4.09" | −1.97" (−48%) | 4.09" |
| May 2026 | 3.18" | 3.64" | −0.46" (−13%) | 3.64" |
| June 2026 | 2.44" | 4.16" | −1.71" (−41%) | 4.16" |
| July 2026 | 5.99" | 3.53" | +2.46" (+70%) | 3.53" |
| August 2026 | 2.44" | 3.58" | −1.15" (−32%) | 3.58" |
| September 2026 | 4.86" | 3.85" | +1.01" (+26%) | 3.85" |
| October 2026 | 1.91" | 4.76" | −2.85" (−60%) | 4.76" |
| November 2026 (to date) | 0.03" | 0.63" | −0.60" (−95%) | 3.78" |

## Track Chelmsford, MA 01824 in the Free Precip App

This summary covers standard periods at the center of Chelmsford, MA 01824. Open [Chelmsford, MA 01824 in the Precip app](https://app.precip.ai/locations/coords?lng=-71.349825&lat=42.587960499999994&locationName=Chelmsford%2C+MA+01824&save=true&src=md_rain_report) (iOS, Android, and Web — rated 4.8/5 from 10463+ reviews) for:

- **Exact-coordinate virtual rain gauge:** [Drop a pin on any yard, field, or job site](https://app.precip.ai/locations/coords?lng=-71.349825&lat=42.587960499999994&locationName=Chelmsford%2C+MA+01824&save=true&src=md_rain_report) at ~800 m resolution with no physical hardware.
- **Hour-by-hour storm timeline & multi-year archive:** See exact start/stop times, peak hourly intensity, and custom date ranges back to 2015.
- **Automatic rain alerts & morning email reports:** Get a free morning rainfall summary after it rains, Lock Screen Live Activity timed to the first drop in the next 60 minutes, or custom threshold alerts (e.g. `> 0.50" in 24h`).
- **Benchmarked #1 forecast for Chelmsford, MA 01824:** [View the 60-minute AI rain nowcast and 10-day hourly forecast](https://app.precip.ai/home?lng=-71.349825&lat=42.587960499999994&locationName=Chelmsford%2C+MA+01824&src=md_rain_forecast) — ranked #1 against Apple Weather, Google Weather, and ECMWF in live NOAA station tests.
- **Download on iPhone or Android:** [Install the Precip mobile app](https://link.precip.ai/app?utm_source=markdown&utm_medium=llm&src=md_rain_report) or open on the web at https://app.precip.ai/locations/coords?lng=-71.349825&lat=42.587960499999994&locationName=Chelmsford%2C+MA+01824&save=true&src=md_rain_report.

## About This Data

- **Location:** Chelmsford, MA 01824 (42.5880, -71.3498).
- **Source:** [Precip](https://precip.ai) combines 180+ Doppler radar stations, satellite imagery, and quality-controlled rain gauges with machine learning to measure precipitation at ~800 m (0.5 mile) resolution, updated hourly.
- **Normals:** 30-year PRISM climate normals for the matching period.
- **Interactive map & full report:** https://precip.ai/rainfall-totals/zipcode/01824
- **Snowfall report (Markdown):** https://precip.ai/snow-totals/zipcode/01824.md
- **Use Precip in ChatGPT, Claude, or Cursor (MCP):** Connect your free Precip account via the remote MCP server at `https://api.precip.ai/mcp` ([setup guide](https://api-docs.precip.ai/mcp)) to query saved locations and custom date ranges directly inside your AI assistant, or use the [Precip Weather REST API](https://precip.ai/developers).