Castle Rock, Colorado
ID: USC00051401 Latitude: 39.4106 Longitude: -104.9058
Elevation: 6185 feet (1885.2 meters)
Source: NOAA Climate Normals 1991-2020
Precipitation Total: 17.60 in., 6.93 cm.
Monthly Data Table for Castle Rock, Colorado
Monthly Data from NOAA Monthly Normals 2006-2020
Imperial Units
Statistic |
Units |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Maximum Temperature |
°F |
45.4 |
45.4 |
54.2 |
59.8 |
67.6 |
81.4 |
86.1 |
84.0 |
77.4 |
64.0 |
55.6 |
44.3 |
Minimum Temperature |
°F |
17.7 |
19.1 |
27.3 |
32.6 |
41.2 |
51.4 |
57.2 |
55.4 |
47.4 |
34.7 |
26.5 |
17.0 |
Heating Degree Days |
°F |
1037.1 |
916.7 |
752.0 |
564.6 |
341.6 |
63.4 |
6.1 |
16.9 |
136.6 |
486.9 |
718.8 |
1064.4 |
Cooling Degree Days |
°F |
0.0 |
0.0 |
0.1 |
0.8 |
13.1 |
105.3 |
212.1 |
162.5 |
58.5 |
1.9 |
0.1 |
0.0 |
Precipitation |
I |
0.6 |
0.7 |
1.1 |
1.6 |
2.1 |
2.0 |
2.8 |
2.0 |
1.4 |
0.9 |
0.5 |
0.7 |
Metric Units
Statistic |
Units |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Maximum Temperature |
°C |
7.4 |
7.4 |
12.3 |
15.4 |
19.8 |
27.4 |
30.1 |
28.9 |
25.2 |
17.8 |
13.1 |
6.8 |
Minimum Temperature |
°C |
-7.9 |
-7.2 |
-2.6 |
0.3 |
5.1 |
10.8 |
14.0 |
13.0 |
8.6 |
1.5 |
-3.1 |
-8.3 |
Heating Degree Days |
°C |
558.4 |
491.5 |
400.0 |
295.9 |
172.0 |
17.4 |
-14.4 |
-8.4 |
58.1 |
252.7 |
381.6 |
573.6 |
Cooling Degree Days |
°C |
-17.8 |
-17.8 |
-17.7 |
-17.3 |
-10.5 |
40.7 |
100.1 |
72.5 |
14.7 |
-16.7 |
-17.7 |
-17.8 |
Precipitation |
M |
1.4 |
1.8 |
2.7 |
4.0 |
5.3 |
5.1 |
7.1 |
5.1 |
3.7 |
2.4 |
1.2 |
1.9 |