Temperature Data | Precipitation Data | Detailed Data

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Annual Climatology: Boston, MA (BOS)

Elev: 20 ft    Lat: 42^o 22'N    Long: 71^o 01'W

Figure 1: Average Temperatures and Precipitation 1971-2000. (NCDC Data)

Temperature Data (^oF) :

Month	Daily Max	Daily Min	Mean	Maximum Daily Temperature	Minimum Daily Temperature
January	36.5	22.1	29.3	72	-12
February	38.7	24.2	31.5	70	-18
March	46.3	31.5	38.9	89	1
April	56.1	40.5	48.3	94	13
May	66.7	50.2	58.5	96	34
June	77.6	59.4	68.0	100	41
July	82.2	65.5	73.9	103	50
August	80.1	64.5	72.3	102	46
September	72.5	56.8	64.7	100	37
October	61.8	46.4	54.1	90	25
November	51.8	37.9	44.9	83	8
December	41.7	27.8	34.8	76	-17
Annual	59.3	43.9	51.6	103	-18

Precipitation Data (in):

Month	Mean	Median	Extreme	Year	Snow*
January	3.92	3.33	10.55	1979	13.3
February	3.30	2.91	7.81	1984	11.3
March	3.85	3.47	9.72	1983	8.0
April	3.60	3.44	9.46	1987	1.1
May	3.24	2.87	8.77	1984	0.0
June	3.22	2.20	13.20	1982	0.0
July	3.06	2.57	7.62	1988	0.0
August	3.37	2.97	7.99	1976	0.0
September	3.47	3.02	9.86	1999	0.0
October	3.79	3.35	10.66	1996	0.0
November	3.98	3.78	8.89	1983	1.4
December	3.73	3.28	8.26	1992	6.7
Annual	42.53	43.47			41.8

* Snowfall totals represent mean snowfall 1971-2000

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