Houston Climate Records and Averages

Houston, is the largest city in Texas and fourth largest in the United States. The city is located in the flat Coastal Plains, about 50 miles from the Gulf of Mexico and about 25 miles from Galveston Bay. The terrain includes numerous small streams and bayous which, together with the nearness to Galveston Bay, favor the development of fog on an average of 78 days annually. Sunshine averages nearly 60 percent of the possible amount for the year ranging from 42 percent in January to 67 percent in June. Temperatures are moderated by the influence of winds from the Gulf, which result in mild winters. Another effect of the Gulf is abundant rainfall. Polar air penetrates the area frequently enough to provide variability in the weather. Destructive windstorms are fairly infrequent, but both thunderstorms and tropical storms occasionally pass through the area.

	Monthly Averages			Daily Extremes				Monthly Extremes
Temperatures in F	Max.	Min.	Avg	High	Date of daily extreme high	Low	Date of daily extreme low	Highest Avg	Year	Lowest Avg	Year
January	62.4	44.0	53.2	85	23/1972	10	31/1949	63.1	1950	43.4	1978
February	65.7	47.0	56.3	87	27/1954	14	02/1951	63.9	1962	46.3	1978
March	72.1	53.0	62.6	96	30/1946	22	03/1943	68.5	1953	55.9	1947
April	78.7	60.5	69.6	94	28/1948	22	04/1995	75.7	1967	64.8	1952
May	85.2	67.7	76.4	100	31/1998	44	04/1978	81.1	1998	72.4	1954
June	90.3	73.1	81.7	102	25/2009	56	01/1984	86.2	1998	79.4	1955
July	92.5	75.0	83.7	104	26/1954	45	27/1983	86.7	2009	81.4	1985
August	92.5	74.9	83.7	106	13/1962	64	13/1967	86.5	1999	81.1	1967
September	88.4	71.1	79.7	101	19/1956	50	29/1967	84.5	2005	76.2	1974
October	81.4	61.8	71.6	96	08/1962	33	31/1993	77.5	2004	62.2	1976
November	71.9	52.2	62.1	90	03/1973	25	30/1976	69.7	1973	53.8	1976
December	64.9	46.0	55.5	84	03/1970	9	23/1989	64.8	1984	45.7	1989

Annual	78.8	60.5	69.7	106	1962/08/13	9	1989/12/23	71.4	2006	67.2	1979

Winter	64.3	45.7	55.0	87	1954/02/27	9	1989/12/23	60.8	1950	48.3	1978
Spring	78.7	60.4	69.6	100	1998/05/31	22	1943/03/03	73.0	1967	66.1	1952
Summer	91.8	74.3	83.0	106	1962/08/13	45	1983/07/27	86.1	1998	81.4	1984
Fall	80.6	61.7	71.1	101	1956/09/19	25	1976/11/30	74.6	1973	65.0	1976

												Total Snowfall
	Avg.	High	Year	Low	Year	1 Day Max.		>= 0.01 in.	>= 0.10 in.	>= 0.50 in.	>= 1.00 in.	Mean	High	Year
	in.	in.	-	in.	-	in.	dd/yyyy or yyyymmdd	# Days	# Days	# Days	# Days	in.	in.	-
January	3.83	10.51	1944	0.20	1971	4.10	27/1997	10	6	2	1	0.1	3.1	1949
February	3.27	11.33	1959	0.09	1954	3.88	01/1952	9	5	2	1	0.1	4.4	1960
March	2.95	11.42	1957	0.07	1953	5.00	17/1957	8	4	2	1	0.0	1.0	1968
April	3.52	15.60	2009	0.06	1987	6.20	27/1972	7	4	2	1	-	-	-
May	4.78	14.84	1970	0.00	2003	9.48	03/1981	7	5	3	2	-	-	-
June	6.02	23.20	2001	0.17	1967	9.29	19/2006	8	6	3	2	-	-	-
July	4.56	17.26	1979	0.07	1962	7.07	07/1973	9	6	3	1	-	-	-
August	4.50	16.01	1981	0.38	1956	8.58	01/1989	9	6	3	1	-	-	-
September	5.06	15.40	1958	0.14	1953	8.83	19/1979	9	6	3	2	-	-	-
October	4.99	22.31	1949	0.00	1952	9.95	07/1949	7	5	3	2	-	-	-
November	4.21	14.36	1946	0.18	1949	5.63	02/1943	8	5	3	1	-	-	-
December	3.85	9.80	1949	0.49	1970	4.18	17/1995	9	6	2	1	-	-	-

Annual	51.53	83.02	1979	26.65	1988	9.95	1949/10/07	101	65	31	16	0.2	4.4	1960

Winter	10.95	21.83	1992	2.23	1971	4.18	1995/12/17	28	17	7	3	0.2	4.4	1960
Spring	11.25	23.68	1997	2.09	1963	9.48	1981/05/03	23	14	7	3	0.0	1.0	1968
Summer	15.08	40.63	1981	4.83	1956	9.29	2006/06/19	27	18	9	5	-	-	-
Fall	14.25	26.52	1957	3.36	1950	9.95	1949/10/07	24	16	8	5	-	-	-

Winter = Dec, Jan, and Feb		Spring = Mar, Apr, and May
Summer = Jun, Jul, and Aug.		Fall = Sep, Oct, and Nov