# Rainfall in Boulder, CO 80302

As of 1:10 AM MDT on Sunday, October 18, 2026, Boulder, CO 80302 has had **0.00 in** of rain today (since midnight Mountain Time) and **0.00 in** in the past 24 hours.

| Period | Rainfall | Normal |
| --- | --- | --- |
| Past 24 hours | 0.00 in |  |
| Today, Sunday, October 18, 2026 (so far) | 0.00 in |  |
| Yesterday, Saturday, October 17, 2026 | 0.00 in |  |
| Last 7 days, Mon, Oct 12 to Sun, Oct 18 | 0.81 in | 0.36 in |
| October 2026 (to date) | 0.81 in | 0.86 in |
| 2026 to date | 10.90 in | 19.16 in |

## Daily rainfall, last 7 days

Each day runs midnight to midnight Mountain Time (America/Denver).

| Date | Rainfall |
| --- | --- |
| Sun, Oct 18 (today, so far) | 0.00 in |
| Sat, Oct 17 | 0.00 in |
| Fri, Oct 16 | 0.00 in |
| Thu, Oct 15 | 0.07 in |
| Wed, Oct 14 | 0.42 in |
| Tue, Oct 13 | 0.33 in |
| Mon, Oct 12 | 0.00 in |

## Monthly rainfall

| Month | Rainfall | Normal |
| --- | --- | --- |
| July 2026 | 2.04 in | 1.89 in |
| August 2026 | 1.48 in | 1.93 in |
| September 2026 | 0.68 in | 2.27 in |
| October 2026 (to date) | 0.81 in | 0.86 in |

## About this data

- Location: Boulder, CO 80302. Totals are for the center of ZIP code 80302 (40.033, -105.361); rain can differ a lot across a few miles.
- Days run midnight to midnight in the location's own time zone, Mountain Time (America/Denver). Rainfall is in inches.
- Normal: the 30-year PRISM climate normal for the same period. For the current month and the year, it is the normal to date.
- Source: [RainDrop](https://www.raindrop.farm), which estimates rainfall from NOAA Doppler radar, rain gauges and satellite observations. Data last updated 1:10 AM MDT, Sunday, October 18, 2026. This page refreshes every few minutes.
- Map and full page: https://www.raindrop.farm/rainfall-totals/zipcode/80302
- Rainfall for any date back to January 2015, at any address or field: the [RainDrop app](https://www.raindrop.farm/app) or the [RainDrop API](https://www.raindrop.farm/api).