DECEMBER CLIMATIC NORMALS - BROWNSVILLE, TX

DAY	AVG. HIGH TEMP.	AVG. LOW TEMP.	AVG. DAILY TEMP.	AVG. HEATING DEG. DAY	AVG. COOLING DEG. DAY	AVG. DAILY PCPN.
1	75	55	65	4	4	.04
2	74	55	65	4	4	.04
3	74	55	65	4	4	.04
4	74	55	64	4	3	.04
5	74	54	64	4	3	.04
6	73	54	64	4	3	.04
7	73	54	64	4	3	.04
8	73	54	63	5	3	.04
9	73	53	63	5	3	.04
10	73	53	63	5	3	.04
11	72	53	63	5	3	.04
12	72	53	63	5	3	.04
13	72	53	63	5	3	.04
14	72	53	62	6	3	.04
15	72	52	62	6	3	.04
16	72	52	62	6	3	.04
17	71	52	62	6	3	.04
18	71	52	62	6	3	.04
19	71	52	62	6	3	.04
20	71	52	62	6	3	.04
21	71	51	61	7	3	.04
22	71	51	61	7	3	.04
23	70	51	60	7	2	.04
24	70	51	60	7	2	.04
25	70	51	60	7	2	.04
26	70	51	60	7	2	.04
27	70	51	60	7	2	.04
28	70	51	60	7	2	.04
29	70	50	60	7	2	.04
30	70	50	60	7	2	.04
31	69	50	60	7	2	.05

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These normals are based on temperature and rainfall data collected in Brownsville, TX from 1961 - 1990.

The heating and cooling degree day data was computed using a base temperature of 65 Degrees F.

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