Boulder, Colorado Weather Forecast

Local

Boulder, CO, US

40.01499, -105.27055

Normals for December

	Temp ( °F °C )			Precip ( " mm )		Degree Days
	Min	Max	Avg	MTD	YTD	Heating	Cooling
1	23 -5	49 9	36 2	0.03 undefined	20.45 undefined	29.1	0
2	23 -5	48 9	36 2	0.06 undefined	20.48 undefined	29.4	0
3	23 -5	48 9	35 2	0.09 undefined	20.51 undefined	29.7	0
4	23 -5	48 9	35 2	0.11 undefined	20.53 undefined	29.9	0
5	22 -5	47 9	35 2	0.14 undefined	20.56 undefined	30.2	0
6	22 -6	47 8	35 1	0.17 undefined	20.59 undefined	30.4	0
7	22 -6	47 8	34 1	0.2 undefined	20.62 undefined	30.6	0
8	22 -6	47 8	34 1	0.22 undefined	20.64 undefined	30.8	0
9	21 -6	47 8	34 1	0.25 undefined	20.67 undefined	31	0
10	21 -6	46 8	34 1	0.28 undefined	20.7 undefined	31.2	0
11	21 -6	46 8	34 1	0.31 undefined	20.73 undefined	31.4	0
12	21 -6	46 8	34 1	0.33 undefined	20.75 undefined	31.5	0
13	21 -6	46 8	33 1	0.36 undefined	20.78 undefined	31.6	0
14	21 -6	46 8	33 1	0.39 undefined	20.81 undefined	31.7	0
15	21 -6	46 8	33 1	0.41 undefined	20.83 undefined	31.8	0
16	21 -6	46 8	33 1	0.44 undefined	20.86 undefined	31.9	0
17	21 -6	46 8	33 1	0.46 undefined	20.88 undefined	32	0
18	20 -6	46 8	33 1	0.49 undefined	20.91 undefined	32	0
19	20 -6	46 8	33 1	0.51 undefined	20.93 undefined	32	0
20	20 -6	46 8	33 1	0.54 undefined	20.96 undefined	32	0
21	20 -6	46 8	33 1	0.56 undefined	20.98 undefined	32	0
22	20 -6	46 8	33 1	0.59 undefined	21.01 undefined	32	0
23	20 -6	46 8	33 1	0.61 undefined	21.03 undefined	32	0
24	20 -6	46 8	33 1	0.63 undefined	21.05 undefined	32	0
25	21 -6	46 8	33 1	0.66 undefined	21.08 undefined	31.9	0
26	21 -6	46 8	33 1	0.68 undefined	21.1 undefined	31.8	0
27	21 -6	46 8	33 1	0.71 undefined	21.13 undefined	31.8	0
28	21 -6	46 8	33 1	0.73 undefined	21.15 undefined	31.7	0
29	21 -6	46 8	33 1	0.76 undefined	21.18 undefined	31.6	0
30	21 -6	46 8	33 1	0.79 undefined	21.21 undefined	31.5	0
31	21 -6	46 8	34 1	0.81 undefined	21.23 undefined	31.5	0