Climate Castle Rock - Colorado
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 46 | 46 | 53 | 59 | 69 | 79 |
| Average low in ºF Av. low Lo | 18 | 20 | 26 | 33 | 42 | 50 |
| Av. precipitation in inch Av. precip. Pre. | 0.62 | 0.65 | 1.83 | 2.20 | 2.18 | 2.05 |
| Av. snowfall in inch Snowfall Sn | 8 | 7 | 15 | 9 | 1 | 0 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 85 | 83 | 76 | 65 | 53 | 45 |
| Average low in ºF Av. low Lo | 56 | 54 | 46 | 35 | 25 | 18 |
| Av. precipitation in inch Av. precip. Pre. | 2.46 | 2.71 | 1.24 | 1.11 | 1.00 | 0.74 |
| Av. snowfall in inch Snowfall Sn | 0 | 0 | 0 | 4 | 7 | 11 |
Castle Rock experiences a humid continental climate, marked by very large seasonal temperature contrasts. Summers are warm, while winters are cold and bring very significant snowfall. Despite the winter moisture, annual precipitation is low overall, with a strong pattern of wetter summers and drier winters.
Castle Rock Climate Graph - Colorado Climate Chart
Daily normals Castle Rock - Colorado - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 45.0 | 17.5 | 0.04 | 0.04 | 0.31 | 0.80 |
| 2 Jan | 45.1 | 17.5 | 0.04 | 0.04 | 0.51 | 1.30 |
| 3 Jan | 45.2 | 17.6 | 0.08 | 0.08 | 0.79 | 2.00 |
| 4 Jan | 45.3 | 17.6 | 0.08 | 0.08 | 1.10 | 2.80 |
| 5 Jan | 45.4 | 17.7 | 0.12 | 0.12 | 1.42 | 3.60 |
| 6 Jan | 45.5 | 17.7 | 0.12 | 0.12 | 1.69 | 4.30 |
| 7 Jan | 45.5 | 17.8 | 0.16 | 0.16 | 2.09 | 5.30 |
| 8 Jan | 45.6 | 17.8 | 0.16 | 0.16 | 2.28 | 5.80 |
| 9 Jan | 45.6 | 17.8 | 0.20 | 0.20 | 2.60 | 6.60 |
| 10 Jan | 45.7 | 17.8 | 0.20 | 0.20 | 2.80 | 7.10 |
| 11 Jan | 45.7 | 17.9 | 0.20 | 0.20 | 3.11 | 7.90 |
| 12 Jan | 45.7 | 17.9 | 0.24 | 0.24 | 3.31 | 8.40 |
| 13 Jan | 45.8 | 17.9 | 0.24 | 0.24 | 3.50 | 8.90 |
| 14 Jan | 45.8 | 17.9 | 0.28 | 0.28 | 3.82 | 9.70 |
| 15 Jan | 45.8 | 17.9 | 0.28 | 0.28 | 4.02 | 10.20 |
| 16 Jan | 45.7 | 17.9 | 0.31 | 0.31 | 4.21 | 10.70 |
| 17 Jan | 45.7 | 17.9 | 0.31 | 0.31 | 4.49 | 11.40 |
| 18 Jan | 45.7 | 17.9 | 0.35 | 0.35 | 4.80 | 12.20 |
| 19 Jan | 45.7 | 17.9 | 0.35 | 0.35 | 5.00 | 12.70 |
| 20 Jan | 45.6 | 17.9 | 0.39 | 0.39 | 5.31 | 13.50 |
| 21 Jan | 45.6 | 17.9 | 0.39 | 0.39 | 5.51 | 14.00 |
| 22 Jan | 45.6 | 17.8 | 0.43 | 0.43 | 5.79 | 14.70 |
| 23 Jan | 45.5 | 17.8 | 0.43 | 0.43 | 6.10 | 15.50 |
| 24 Jan | 45.5 | 17.8 | 0.47 | 0.47 | 6.30 | 16.00 |
| 25 Jan | 45.4 | 17.8 | 0.47 | 0.47 | 6.61 | 16.80 |
| 26 Jan | 45.4 | 17.8 | 0.51 | 0.51 | 6.89 | 17.50 |
| 27 Jan | 45.3 | 17.8 | 0.51 | 0.51 | 7.09 | 18.00 |
| 28 Jan | 45.3 | 17.8 | 0.55 | 0.55 | 7.40 | 18.80 |
| 29 Jan | 45.3 | 17.8 | 0.55 | 0.55 | 7.72 | 19.60 |
| 30 Jan | 45.2 | 17.9 | 0.59 | 0.59 | 7.91 | 20.10 |
| 31 Jan | 45.2 | 17.9 | 0.63 | 0.63 | 8.19 | 20.80 |
Weather history Castle Rock - September 2025
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Sep | 77.0 | 48.0 | 0.00 | 0.00 | 0.0 |
| 02 Sep | 78.1 | 50.0 | - | - | - |
| 03 Sep | 82.0 | 52.0 | - | - | - |
| 04 Sep | 82.9 | 53.1 | 0.00 | 0.00 | 0.0 |
| 05 Sep | 86.0 | 48.0 | 0.12 | 0.00 | 0.0 |
| 06 Sep | 62.1 | 43.0 | 0.00 | 0.00 | 0.0 |
| 07 Sep | 82.0 | 55.9 | 0.00 | 0.00 | 0.0 |
| 08 Sep | 82.9 | 51.1 | 0.00 | 0.00 | 0.0 |
| 09 Sep | 84.0 | - | 0.00 | 0.00 | 0.0 |
| 10 Sep | 84.9 | 55.9 | 0.00 | 0.00 | 0.0 |
| 11 Sep | 91.9 | 62.1 | 0.00 | 0.00 | 0.0 |
| 12 Sep | 91.0 | 60.1 | 0.00 | 0.00 | 0.0 |
| 13 Sep | 77.0 | 52.0 | 0.00 | 0.00 | 0.0 |
| 14 Sep | 73.9 | 48.0 | 0.20 | 0.00 | 0.0 |
| 15 Sep | 71.1 | 48.0 | 0.00 | 0.00 | 0.0 |
| 16 Sep | 84.0 | 46.9 | 0.02 | 0.00 | 0.0 |
| 17 Sep | 72.0 | 42.1 | 0.35 | 0.00 | 0.0 |
| 18 Sep | 69.1 | 42.1 | 0.16 | 0.00 | 0.0 |
| 19 Sep | 71.1 | 45.0 | 0.00 | 0.00 | 0.0 |
| 20 Sep | 77.0 | 46.9 | 0.00 | 0.00 | 0.0 |
| 21 Sep | 73.9 | 48.9 | 0.00 | 0.00 | 0.0 |
| 22 Sep | 78.1 | 46.0 | 0.00 | 0.00 | 0.0 |
| 23 Sep | 75.0 | 45.0 | 0.83 | 0.00 | 0.0 |
| 24 Sep | 55.0 | 45.0 | 0.32 | 0.00 | 0.0 |
| 25 Sep | 68.0 | 41.0 | 0.00 | 0.00 | 0.0 |
| 26 Sep | 77.0 | 41.0 | 0.00 | 0.00 | 0.0 |
| 27 Sep | 79.0 | 45.0 | 0.00 | 0.00 | 0.0 |
| 28 Sep | 81.0 | 51.1 | 0.00 | 0.00 | 0.0 |
| 29 Sep | 79.0 | 46.0 | 0.00 | 0.00 | 0.0 |
| 30 Sep | 72.0 | 45.0 | 0.00 | 0.00 | 0.0 |
Past weather Castle Rock
| Sep 25 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 77.3 ºF | 46 ºF | |
| Average low temperature Av. low temp. | 48.4 ºF | 18 ºF | |
| Total precipitation Total precip. | 2.00 inch | 0.62 inch | |
| Total snowfall Total snowfall | 0.00 inch | 8 inch | |
| Highest max temperature Highest max temp. | 91.9 ºF | - | |
| Lowest max temperature Lowest max temp. | 55.0 ºF | - | |
| Highest min temperature Highest min temp. | 62.1 ºF | - | |
| Lowest min temperature Lowest min temp. | 41.0 ºF | - | |
Past weather September 2025 incomplete - Missing data
Geo Castle Rock - Colorado
| Country | United States | |
|---|---|---|
| State | Colorado | |
| County | Douglas | |
| City | Castle Rock | |
| Zip Code | 80104 | |
| Longitude | -104.85 dec. degr. | |
| Latitude | 39.38 dec. degr. | |
| Altitude - Elevation | 6325ft | |
| ICAO | - | |
| IATA | - |
Date and Time Castle Rock - Colorado
| Local Time | 02:21 AM | |
|---|---|---|
| Sunrise | 05:30 AM | |
| Sunset | 08:29 PM | |
| Day/Night | Night | |
| Timezone | Denver -7:00 | |
| Timezone DB | America - Denver |
Map of Castle Rock - Colorado
USGS National Map — Open interactive map
Castle Rock weather averages
| Annual high temperature | 63ºF |
| Annual low temperature | 35ºF |
| Average annual precip. | 18.79 inch |
| Av. annual snowfall | 62 inch |
Station Data
Monthly averages Castle Rock
Longitude: -104.85, Latitude: 39.38
Average weather Castle Rock, CO - 80104
Monthly: 1991-2020 normals
History: 2007-2025
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...