Question 1

How much rain did Castle Rock, CO 80109 get in the last 24 hours?

Accepted Answer

Precip measured 0.00" of rain in Castle Rock, CO 80109 over the last 24 hours (full day Thu, Nov 5: 0.00"). Totals come from Precip's radar-based virtual rain gauge and update hourly.

Question 2

What is the year-to-date rainfall total for Castle Rock, CO 80109 in 2026?

Accepted Answer

So far in 2026, Castle Rock, CO 80109 has received 14.18" of precipitation according to Precip, compared to the 30-year normal to date of 17.89" (20.7% below average). Recent monthly totals: August: 2.13" (normal 2.57"); September: 1.66" (normal 1.49"); October: 0.52" (normal 1.26"); November: 0.44" (normal 0.18").

Question 3

How much rain did Castle Rock, CO 80109 get in the past 7 days?

Accepted Answer

Precip measured 0.44" of rain in Castle Rock, CO 80109 over the past 7 days.

Question 4

When did it last rain in Castle Rock, CO 80109?

Accepted Answer

The most recent rain event in Castle Rock, CO 80109 ended 2 days ago, dropping 0.14" as measured by Precip.

Question 5

How are rainfall totals for Castle Rock, CO 80109 measured?

Accepted Answer

Precip combines Doppler radar, satellite imagery, and ground station data with AI to measure rainfall for any point — a virtual rain gauge for Castle Rock, CO 80109 accurate to roughly 800 meters and updated every hour.

Month	2026 Total	30-Yr Normal	vs. Normal
January	0.64"	0.66"	−0.02" (−3%)
February	0.32"	0.70"	−0.38" (−54%)
March	1.79"	1.52"	+0.27" (+18%)
April	1.62"	2.56"	−0.94" (−37%)
May	3.17"	2.25"	+0.92" (+41%)
June	0.44"	2.03"	−1.59" (−78%)
July	1.45"	2.67"	−1.22" (−46%)
August	2.13"	2.57"	−0.43" (−17%)
September	1.66"	1.49"	+0.17" (+11%)
October	0.52"	1.26"	−0.73" (−58%)
November (to date)	0.44"	0.18"	+0.26" (+149%)
2026 YTD Total	14.18"	17.89"	−3.70" (20.7% below average)

Rainfall Totals Last 24 Hours in Castle Rock, CO 80109

0.00" of rain in Castle Rock, CO 80109 in the last 24 hours

Virtual Rain Gauge Map

Daily Rainfall Totals in Castle Rock (Last 7 Days)

Monthly Rainfall Totals in Castle Rock (2026)

Rainfall Totals vs Normals (30 Year Average)

Track rainfall in Castle Rock every day

Nearby Locations

Rainfall Totals

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Nearby Parks, Stadiums & Trailheads